SAN DEIGO 2001

INSAR 2021 VIRTUAL

BOSTON 2005

TH ANNIVERS 20 ARY

LONDON 2008 2001 2021

CHICAGO 2009

MAY 3-7, 2021 SAN SEBASTIAN 2013

www.autism-insar.org

SAN FRANCISCO 2017

On-Demand Content Available to Registrants Until June 7, 2021

MONTREAL 2019 2021 SPONSORS

We thank the following organizations for their generous support of INSAR and the Annual Meeting. Platinum

Silver Hilibrand Foundation Nancy Lurie Marks Family Foundation

Bronze Autism Science Foundation Roche TABLE OF CONTENTS

Sponsorship...... 1 Meeting Chair Welcome...... 2 Scientific Program Chairs’ Welcome...... 3 President’s Welcome Letter...... 4-5 Meeting Information INSAR Meeting Celebrating 20 Years...... 6-7 Schedule at a Glance...... 8-10 In-Conjunction Events...... 11-13 Keynote Speakers...... 14 2021 INSAR Fellows...... 15 Follow us on Twitter: 2021 and 2020 Awardees...... 16-19 @AutismINSAR Acknowledgements...... 20-21 Join the conversation: INSAR Institute 2021...... 22 #AutismINSAR #INSAR2021 General Information...... 23-25 2021 Exhibitors...... 26 https://www.facebook.com/ Save the Date 2022...... 27 AutismINSAR Autism Research Journal Information...... 28 INSAR Strategic Initiatives...... 29 Follow on Instagram @autism.insar MONDAY Events...... 30 MAY 3 Special Interest Groups (SIGs)...... 30

TUESDAY President Address...... 31 MAY 4 Keynote Address...... 31 Oral Sessions...... 31-38 Panels Sessions...... 38-41 Keynote Address...... 41 Awards Ceremony...... 41

WEDNESDAY Keynote Addresses...... 42 & 46 MAY 5 Panels Sessions...... 42-51 Events...... 46 Oral Sessions...... 51-57

THURSDAY Events...... 58 & 67 MAY 6 Keynote Address...... 62 Panels Sessions...... 58-66 Special Interest Groups (SIGs)...... 66-67

FRIDAY Events...... 68 MAY 7

E-Posters Index...... 69 ON DEMAND E-Posters...... 70-144

AUTHORS Author Index...... 145-208

1 INSAR WELCOME

What a year for us all. I very much wish that I could be welcoming you in person to my beautiful city of Boston for the INSAR annual meeting of 2021. But of course we will have to settle for seeing each other in small boxes on a screen. However, this in no way lessens the importance and impact of the incredible science that will be presented in our virtual meeting this year.

The program committee did an amazing job reviewing over 1,300 abstracts and panel submissions from all over the world and covering research areas as diverse as the neurodevelopment spectrum we study. We will be seeing exciting keynote addresses from across the globe and hearing from Boston’s own INSAR Lifetime Achievement award winner Helen Tager-Flusberg.

It has been my privilege to work with the INSAR Board over the course of the year to plan this important 20th anniversary meeting. I, like a small group of you, was at that first meeting in San Diego and feel so fortunate to see all the growth and amazing work the society has done over the past 20 years. I am so grateful for the support of the board and the staff at INSAR as well as our meeting planners at Conference Direct in making this year a success. The pivot to virtual was not an easy one but I hope you agree that it will be successful and a meeting not to be missed.

While I am truly disappointed you will not be walking the streets of Boston, spending time in our public spaces, browsing in our shops, visiting our museums, and experiencing our wonderful eateries there is something to be said for the virtual meeting experience. We fully anticipate that there are researchers who will be able to attend with this format who might not have been able to do so otherwise. And now that we are all so good at managing our meetings via screens that translates into more opportunities for sharing ideas and forming future collaborations.

In addition to the great science, you will be seeing we have a virtual INSAR 5K for those of you athletically inclined. Again, it won’t be through the streets of Boston (that were originally laid out for horse and carriage) but you can pick your favorite local route and benefit a wonderful program called the COLOR of AUTISM.

The local New England Autism Community will also benefit this year. As Meeting Chair, I am organizing a stakeholder conference with my friend and colleague Ann Neumeyer where this vibrant group can get a glimpse of this meeting by hearing from some of our keynotes and our lifetime achievement award winner. We have also gathered local speakers to discuss the impact of COVID 19 on our community over the past 14 months. A very special thanks to INSAR for supporting these important meetings to engage key stakeholders and community members.

I very much hope you enjoy the meeting as much as I plan to. And please come visit Boston when circumstances allow. You will not be disappointed.

Very Sincerely,

Sarah Spence, MD, PhD INSAR 2021 Meeting Chair

INSAR 2021 is the Annual Meeting of the International Society for Autism Research (INSAR).

2 SCIENTIFIC PROGRAM

Welcome to the 20th International Society for Autism Research (INSAR) Annual Meeting. As your scientific program and executive committee co-chairs, we wish we could see you in person in Boston, but thrilled to meet you virtually, given the unprecedented year of challenges related to the COVID-19 pandemic.

The pandemic profoundly affected our lives over the past year. We offer condolences to those who lost loved ones. We acknowledge the enormous global economic burden resulting from the pandemic itself and the emergency measures developed to contain it. Emerging evidence suggests that individuals with autism and their families are experiencing disproportionate burden from both the virus itself and the emergency measures. The pandemic also unmasked inequities around the globe and their effects on those with disabilities, from access to critical health care, to prioritization for vaccination, to planning for dealing with the aftermath of the pandemic.

Autism research was also significantly impacted. Labs around the world were shut down during much of the pandemic, our ability to measure meaningful outcomes was challenged, and novel discoveries were delayed. Still, our communities remained engaged in scientific discovery and technological innovation that facilitated not only research during this period but may also change the face of autism research in the future. COVID-19 pandemic taught investigators important lessons about new forms of sharing and collaboration, further highlighted the role of creativity and flexibility, which we hope will be illustrated at this meeting.

The more than 1300 accepted abstracts reflect such scientific progress and innovation from around the world this year. They represent research in 6 continents / 44 countries, are led by investigators at all stages of career development, and span neuroscience, psychology, medicine, clinical innovation, lived experience, international /global perspectives among many disciplines.

Our keynote speakers, Petrus De Vries, Tony Charman, Lucina Uddin and Stormy Chamberlain will offer additional insights to global health and autism, diagnosis and developmental trajectories, brain development in autism and across neurodevelopmental conditions, and rare genetic disorders associated with autism and the potential of novel interventions.

We are grateful to the members of the INSAR Board, Executive and Scientific Program Committees, Jennifer Gentry, INSAR Administrative Director, and Joe Dymek, our conference manager, for their dedication, commitment, and hard work, as we converted the meeting and all procedures leading up to it into virtual ones. We also would like to thank all our presenters for the cooperation and flexibility required to prerecord the meeting.

It has been a great honor to organize the scientific program that presents emerging scientific evidence and insights in the field of autism, particularly during this tough year. We hope that lessons learned this year will provide additional opportunities for future meetings to involve our global scientific community in various formats and that the inclusion of diverse research ensures that INSAR remains the place we go for scientific exchange in autism.

Sincerely,

Evdokia Anagnostou, MD INSAR 2021 Scientific Program Chair

Mustafa Sahin, MD, PhD INSAR 2021 Scientific Program Co-Chair

Joseph D. Buxbaum, PhD INSAR 2021 Executive Scientific Program Chair

3 PRESIDENT’S WELCOME

Welcome to the 2021 International Society for Autism Research Annual Meeting. We are celebrating the 20th Anniversary of the inaugural INSAR Annual meeting this year, and this will be first virtual INSAR meeting. One of the virtues of a virtual meeting is that you can take your time and attend more events than in any previous meetings. Video of all the presentations will be available for registered attendees for 30 days. So please enjoy this more expansive opportunity to learn about the newest global scientific efforts to understand and improve the lives of autistic people.

The COVOD-19 pandemic ultimately made planning an in-person conference in Boston for May of this year impossible. That was disappointing. However, the flexibility and ingenuity of the many people who helped to develop the virtual 2021 meeting rapidly in the last four months deserve a heartfelt round of appreciation.

The leadership of Evdokia Anagnostou and Mustafa Sahin and Joseph Buxbaum on the 2021 Program Committee guaranteed the development of an outstanding schedule of keynote talks, panels, oral talks, and posters for the meeting. Similarly, Sarah Spence led a group in Boston who have produced an exceptional local community conference that features talks by conference speakers and in-depth discussions of local community practice.

The past 18-months required INSAR to meet a cascade of challenges presented by the pandemic, including the creation of first virtual annual meeting. This was possible because of the terrific collaboration between the INSAR administration team, the INSAR Board and many INSAR committees. We are all indebted to the outstanding INSAR administrative team is led by Jennifer Gentry, Emily Mathis, with Jessica Klekowski, Stephanie Lehenbauer, Susan Francis and Jennifer Crane of Crane Martin association management. A special thanks to Joe Dymek and Jennifer Marshall of Conference Direct as well for their work on the many details and logistics that make the meeting possible each year.

Each year our sponsors also makes essential contributions to the support of the Annual Meeting. Their support during the pandemic has been especially important to INSAR. In 2020 and 2021 our Sponsors stepped forward to provide much needed support for 20th Annual INSAR meeting. See the Sponsors acknowledgement page online and in the virtual platform. Each year these sponsors are fully engaged in many activities to support research and the autism community and we are proud to partner with them in bringing the best of autism science to the world.

Finally, there would be no 2021 meeting without the dedication and resourcefulness of the students, faculty, and researchers around the world. You persisted in your science despite the personal and professional vicissitudes of the COVID-19 public health crisis. In the context of that challenge, your many outstanding submissions and contributions to the conference this year are all the more remarkable. You make the Annual INSAR meeting the preeminent global event for students, scientists, clinicians, and autistic people and their families to share the latest research and new ideas.

This year’s Virtual Annual Meeting will have the Special Interest Group Meetings (SIGs), student social gatherings, Autism Research author’s workshop, a special Cultural Diversity event on May 7th, Special Recognitions during the Awards Ceremony on May 4th at 4:00 PM ET.

It is my pleasure to announce that this year’s INSAR Lifetime Achievement Award goes to Professor Helen Tager- Flusberg for her profound and prolific contributions to understanding fundamental aspects of the language, communication and cognitive development of autistic people.

I am also delighted that this year’s INSAR Advocate Award goes to John Elder Robison for his national and international leadership in autism rights movement for the last 20 years. In his roles on the IACC and the INSAR Board, he has made compelling arguments for the rights of autistic people, including their right to have a voice in defining autism research goals.

4 PRESIDENT’S WELCOME

I would also like to call your attention to several newsworthy items from the past year of INSAR activities. First, the long planned, but ultimately terrific upgrade of the Society website came online in late 2020 thanks to the hard work and persistence of Emily Mathis, Alison Singer, and the Website Taskforce.

The past year also witnessed the formation of the INSAR Autistic Researcher Committee (ARC). This committee by and for autistic researchers was developed with the leadership of several INSAR members, including Patrick Dwyer, UCLA, TC Waisman, University of Calgary, and Dena Gassner, Adelphi University. John Robison and Cheryl Dissanayake, Vice-President of INSAR have also provided invaluable guidance. For more details about the ARC visit the committee pages on our website.

The Global Senior Leaders (GSL) committee, which was established in 2019 also took major strides forward in developing a network of National Representatives to support the global strategic initiative of INSAR. See their committee page online. The inspiration for the development of the GSL came from Past-President Simon Baron Cohen, who over the last 5 years has made many contributions to the leadership of INSAR. It has been an extremely enjoyable privilege to work with Simon over the past three years!

The next privilege for me will be the opportunity to work with Connie Kasari as she moves into the role of President of INSAR as of May 7th and I move to the role of Past-President. Connie has been in the role of President-Elect since 2020 and clearly will be a wonderfully capable leader for next two years. Newly elected officers for Secretary, Treasurer and Vice-President will also be announced during the Business Meeting on May 7th at 10:00 ET.

In closing, I hope all attendees of the INSAR 2021 Virtual, the 20th Anniversary of the INSAR Annual Meeting, have a thoroughly enjoyable and edifying meeting.

Best regards,

Peter Mundy, PhD INSAR President 2019-2021

5 TH ANNIVERS 20 ARY

2001 2021 INSAR Annual Meeting: Celebrating 20 Years 2001 – 2021

MAY 3 - 7, 2021 INSAR 2021 marks the 20th Anniversary of the INSAR Annual Meeting (formally IMFAR).

The International Meeting for Autism Research (IMFAR) was convened for the first time in November 2001, to provide autism researchers from around the world with a focused opportunity to share the rapidly moving scientific investigation of autism.

The inaugural Annual Meeting was a satellite meeting to the larger Society for Neuroscience Meeting which was held in San Diego, CA, USA in 2001. The first meeting was attended by roughly 500 researchers.

Until that meeting, autism researchers competed with many other groups for the opportunity to share their work at large scientific meetings that covered a wide range of topics. While other meetings provided some opportunity to share high quality autism research, none of them focused specifically on autism.

The organizers and attendees of the first meeting determined that stimulating more scientific progress in understanding autism required a dedicated yearly venue for autism st 1 Annual 10th Annual 20th Annual researchers to share their findings and 2001 - San Diego 2011 - San Diego 2021 - Virtual their resources.

The INSAR Annual Meeting is now an annual scientific meeting, convened each May, to exchange and disseminate new scientific progress among autism scientists and their trainees from around the world. The name of the meeting was changed from IMFAR to INSAR Annual Meeting beginning with the 2018 event.

From the group of a few hundred in 2001, the Meeting now regularly hosts several thousand attendees. As Joe Piven, one of the first symposium presenters for IMFAR, said: “Clearly the success of this organization and annual meeting has far outstripped our wildest dreams for success and has continued to grow and be an organizing, critical and driving force in the field of autism research.”

On the INSAR website, we have collected video interviews, testimonials, and photos from those who attended the meetings over the last two decades. Some of the founding researchers are represented here, such as Cathy Lord, David Amaral, Anthony Bailey, Helen Tager-Flusberg, Bob Schultz, and more. There are also interviews with researchers who were students at the time of the first Annual Meeting, who have seen their careers develop alongside the society’s history. We are grateful to everyone who has been a part of these first two decades of the INSAR Annual Meeting and look forward to many more.

Thank you to all who participated in INSAR 2021, our first virtual meeting. We look forward to a return to in-person evens and are researching a hybrid model for INSAR 2022. Save the date May 14, 2022 Austin Texas, USA.

View 20th Anniversary interviews on our website autism-insar.org/page/20years

6 THE AIMS OF THE ANNUAL MEETING ARE:

• Promote exchange and dissemination of the latest scientific findings and to stimulate research progress in understanding the nature, causes, and treatments for autism. Research on autism involves sophisticated behavioral and biological approaches. Autism affects people’s functioning in virtually every domain, requiring interdisciplinary research collaboration to gain comprehensive knowledge of the disorder.

• Foster dialogue among autism scientists across disciplines and across methods.

• Advance the training and development of new autism scientists by supporting the inclusion of postdoctoral and predoctoral trainees as well as junior faculty who are already working in autism research. The opportunity for trainees and junior faculty to interact with established autism scientists will foster the creativity and productivity of those at all levels.

• Cultivate diversity among autism scientists by encouraging attendance and supporting access to the meeting for scientists and trainees from members of traditionally underrepresented groups, including those from ethnic minority groups, and those with disabilities.

Given the complex biological and behavioral nature of autism, interdisciplinary training and ongoing mentoring of new scientists and promising graduate students is necessary to recruit talented young people in autism research.

INSAR seeks to provide them with the motivation and mentoring needed to focus a career on autism and related developmental disorders.

Having an annual interdisciplinary meeting focused on scientific progress in understanding and treating autism provides an unparalleled opportunity for recognizing, supporting, and motivating talented graduate students and postdoctoral fellows into a career in autism research.

VIRTUAL 5K WALK/RUN

We are delighted to announce the inaugural INSAR Annual Meeting Virtual 5k Walk/Run in honor of the Meeting›s 20th Anniversary! The Virtual 5k is open to the public, so the autism community around the globe can participate. The first 50 meeting registrants to also sign up for the run will receive a FREE limited edition 5k t-shirt!

Dates of Virtual 5k Walk/Run: May 1-5, 2021

Cost: $25; proceeds go directly to The Color of Autism Foundation

The proceeds from this virtual 5k walk/run are in support of The Color of Autism Foundation. The Color of Autism Foundation is a Non-Profit 501(c)3 organization committed to educating and assisting African-American families with Autistic children. To learn more, please visit their website at www. thecolorofautism.org.

Run/walk/stroll this event from anywhere in the world May 1-5, 2021. All participants will receive a race bib they can print and wear for their run. Upon completion of you run/walk/stroll, participants can upload their results to the event page directly.

Results will be shared on May 5th via social media, and the race winner will be announced during the Virtual Annual Meeting. Tag us on social media so we can share your results! Tag @autismINSAR on Twitter, or @autism.INSAR on Instagram.

Run sign up closes on April 30. See the INSAR Website for link to the race website.

7 INSAR 2021 VIRTUAL SCHEDULE ­­AT A GLANCE All times Eastern Daylight Time (EDT)

MONDAY MAY 3 SIG SESSIONS (pre-registration required) EVENTS 10:00 AM – 11:30 AM Special Interest Group (SIG): Autism and 12:00 PM – 1:00 PM Event - Press Conference Schizophrenia:Understanding the Overlap (abstract embargo ends 1:00 pm EDT) (limited – pre-registration was required) 12:00 PM – 3:00 PM Event - Student & Trainee Workshop 10:00 AM – 11:30 AM Special Interest Group (SIG): Building ( pre-registration required) on the Strengths of Autistic Scholars by 4:00 PM - 5:30 PM Event -Networkshop Addressing Systemic Barriers to Autistic POSTERS ON-DEMAND Success in Academia (pre-registration was required) ePoster On-Demand Access Begins (online Q&A available May 3 – May 7)

TUESDAY MAY 4 POSTER SESSIONS EXHIBITS ALL DAY ePosters On-Demand Access with online Q&A 12:00 PM – 3:00 PM GENERAL SESSIONS PANEL SESSIONS 9:00 AM – 10:00 AM INSAR President Address 1:45 PM – 3:45 PM Panel — Adult Outcome: Medical, Cognitive, 10:00 AM – 11:00 AM Keynote — Petrus J. de Vries MBChB, Behavioral, Social, Adaptive, Vocational: Barriers and Facilitators of Child, Teacher and FRCPsych, PhD System-Level Intervention Outcomes ORAL SESSIONS 1:45 PM – 3:45 PM Panel — Cognition: Attention, Learning, Memory: 11:15 AM – 12:10 PM Oral — Adult Outcome: Medical, Cognitive, Tracking Outside the Box: Moving Beyond Behavioral, Social, Adaptive, Vocational: Social, Traditional Areas of Interest in ASD Eye Tracking Sexual and Neuropsychiatric Health in Autistic Research Adults 1:45 PM – 3:45 PM Panel — Diagnostic, Behavioral, Sensory and 11:15 AM – 12:10 PM Oral — Animal Models: Modeling Autism Intellectual Screening and Assessment: Autism Mutations from Fish to Human Cells in Children with Hearing or Visual Impairment: 11:15 AM – 12:10 PM Oral — Interventions – Pharmacologic: Early Risk Signs, Atypical Profiles and Modified Pharmacological Treatment Studies Diagnostic Assessment Approaches 11:15 AM – 12:10 PM Oral — Other - Multiple Topic Areas: Behavioral 1:45 PM – 3:45 PM Panel — Epidemiology/Population Studies: Treatment Trials Insights into Autism from Longitudinal Studies Spanning Infancy to Adulthood 11:15 AM – 12:10 PM Oral — Other - Multiple Topic Areas: ‘Getting it Right’ for Autistic Children, Youth and Adults: 1:45 PM – 3:45 PM Panel — Molecular Genetics: ASD Genetics: New Diagnostic, Transition & Mental Health Support Data and New Insights Challenges 1:45 PM – 3:45 PM Panel — Novel Therapeutic Approaches (gene, 11:15 AM – 12:10 PM Oral — Other - Multiple Topic Areas: fMRI and protein or RNA targeted therapies): EEG Task-Induced Responses in Autism Gene-Based Therapies in Development for Rett Syndrome 11:15 AM – 12:10 PM Oral — Other - Multiple Topic Areas: Functional and Anatomical Neuroimaging Markers of Autism 1:45 PM – 3:45 PM Panel — Sensory, Motor, and Repetitive Behaviors and Interests: Bodies, Faces, and ORAL SESSIONS Limbs: Measuring Movement in the Context of 12:15 PM – 1:10 PM Oral — Early Development (< 48 months): Autism Assessment & Social Development GENERAL SESSION 12:15 PM – 1:10 PM Oral — Epidemiology/Population Studies: Early 4:00 PM – 6:00 PM Event —INSAR Awards Ceremony - Lifetime Determinants of Autism Risk Achievement, Advocate, Cultural 12:15 PM – 1:10 PM Oral — Epigenetics: An Update on Autism Diversity Research, Slifka Award, Young Genetics and Gene-Environment Interactions Investigator, Dissertation & more 12:15 PM – 1:10 PM Oral — Family Issues and Stakeholder Keynote — Helen Tager-Flusberg, PhD Experiences: Qualitative Understandings Lifetime Award Recipient of Autistic Individuals, Their Families and Communities 12:15 PM – 1:10 PM Oral — Other - Multiple Topic Areas: Measure Development 12:15 PM – 1:10 PM Oral — Other - Multiple Topic Areas: Trajectories in Autism - Impacts and Prediction 12:15 PM – 1:10 PM Oral — Service Delivery/Systems of Care: Measuring and Maximizing Access to Services 1:15 PM - 1:45 PM BREAK

8 INSAR 2021 VIRTUAL SCHEDULE ­­AT A GLANCE All times Eastern Daylight Time (EDT)

WEDNESDAY MAY 5

POSTER SESSIONS 3:00 PM – 5:00 PM Panel — Neuroimaging: Etiologies of Atypical ALL DAY ePosters On-Demand Access with online Q&A Prenatal Development in Autism Spectrum Disorder and Implications for Early Treatment GENERAL SESSION 3:00 PM – 5:00 PM Panel — Other - Multiple Topic Areas: 10:00 AM – 11:00 AM Keynote — Tony Charman, PhD Mechanism in Autism Intervention – Identifying Active Ingredients and Developing PANEL SESSIONS Innovative Practice 11:15 AM – 1:15 PM Panel — Behavioral Neuroscience: The Multi- 3:00 PM – 5:00 PM Panel — Service Delivery/Systems of Care: Level Neurosciences of Sex, Gender and Bridging the Gap: Mitigating Barriers to Autism Autism Service Access in Rural Populations 11:15 AM – 1:15 PM Panel — Biomarkers (molecular, phenotypic, neurophysiological, etc): EEG Biomarkers in EVENT Neurodevelopmental Disorders: From 3:00 PM – 5:00 PM Event —Autism Research Author Workshop Mechanisms and Methods to Clinical Trial Readiness ORAL SESSIONS 11:15 AM – 1:15 PM Panel — Diagnostic, Behavioral, Sensory and 5:15 PM – 6:10 PM Oral — Adult Outcome: Medical, Cognitive, Intellectual Screening and Assessment: Behavioral, Social, Adaptive, Vocational: Innovations in the Use of Telehealth for Contributing Factors and Pathways to Autistic Evaluating and Treating Autism Spectrum Adult Mental, Behavioral and Social Outcomes Disorder 5:15 PM – 6:10 PM Oral — Animal Models: Perturbing Genetic and 11:15 AM – 1:15 PM Panel — Emotion: Self-Regulation and Environmental Autism Risk Factors in Mouse Associated Clinical Features in Autism across Models the Lifespan 5:15 PM – 6:10 PM Oral — Interventions - Non-pharmacologic - 11:15 AM – 1:15 PM Panel — Immunology: Microbiota and Immune School-Age, Adolescent, Adult: Behavioral Signaling in Neurodevelopmental Disorders Treatments for ASD 1:15 AM – 1:15 PM Panel — Interventions - Non-pharmacologic - 5:15 PM – 6:10 PM Oral — Medical and Psychiatric Comorbidity: School-Age, Adolescent, Adult: Promoting Exploring the Origins of Poor Mental Health in Pre-Employment Skills in Autistic Transition Autism Age Youth 5:15 PM – 6:10 PM Oral — Other - Multiple Topic Areas: Functional 11:15 AM – 1:15 PM Panel — Service Delivery/Systems of Care: and Anatomical Neuroimaging Markers of Using Novel Implementation Tools for Autism II Evidence-Based Practice Delivery (UNITED) 5:15 PM – 6:10 PM Oral — Other - Multiple Topic Areas: Sex for Under Resourced Settings Differences in Autistic Behavior Phenotypes 5:15 PM – 6:10 PM Oral — Sensory, Motor, and Repetitive EXHIBITS Behaviors and Interests: Developmental 12:00 PM – 3:00 PM Exhibits Patterns and Subgroups 1:15 PM – 1:45 PM BREAK ORAL SESSIONS GENERAL SESSION 6:15 PM – 7:10 PM Oral — Cognition: Attention, Learning, 1:45 PM – 2:45 PM Keynote — Lucina Q. Uddin, PhD Memory: Behavior, Gaze, and Biomarkers PANEL SESSIONS 6:15 PM – 7:10 PM Oral — International and Cross-Cultural Perspectives: Impacts on Families and 3:00 PM – 5:00 PM Panel — Adult Outcome: Medical, Cognitive, Individuals Behavioral, Social, Adaptive, Vocational: Towards Cross- and Multimodal Biomarker 6:15 PM – 7:10 PM Oral — Education: Factors in Effective Discovery in Autism – Updates from the Education AIMS2TRIALS Project 6:15 PM – 7:10 PM Oral — Epidemiology/Population Studies: 3:00 PM – 5:00 PM Panel — Interventions - Non-pharmacologic Effects of Sex and Environment on Autism - Infant, Toddler, and Preschool: The State Phenotypes and Trajectories of Autism Intervention Research for Young 6:15 PM – 7:10 PM Oral — Epigenetics: Beyond the Genes... Children Protein-Protein Interactions and Complex 3:00 PM – 5:00 PM Panel — Interventions – Pharmacologic: Epigenetics of Autism Mechanistic Biomarkers of E:I Dynamics 6:15 PM – 7:10 PM Oral — Other - Multiple Topic Areas: and Nextgen Clinical Trials with Arbaclofen Understanding Behavioral and Biological 3:00 PM – 5:00 PM Panel — Medical and Psychiatric Comorbidity: Heterogeneity in Autism The Interpretation and Impacts of Traumatic 6:15 PM – 7:10 PM Oral — Service Delivery/Systems of Care: Life Events for ASD Adults Access to Primary and Preventive Care

99 INSAR 2021 VIRTUAL SCHEDULE ­­AT A GLANCE All times Eastern Daylight Time (EDT)

THURSDAY MAY 6

EVENT PANEL SESSIONS 4:00 AM – 5:00 AM Event - Student Social and Booth 12:45 PM – 2:45 PM Panel — Adult Outcome: Medical, Cognitive, (Australia/Asia) Behavioral, Social, Adaptive, Vocational: Digitally Augmented Phenotyping of Autism POSTER SESSIONS Spectrum Disorders ALL DAY ePosters On-Demand Access with online Q&A 12:45 PM – 2:45 PM Panel — Clinical Trial Endpoints: Digital Outcome Measures PANEL SESSIONS 12:45 PM – 2:45 PM Panel — Family Issues and Stakeholder 9:00 AM – 11:00 AM Panel — Adult Outcome: Medical, Cognitive, Experiences: The Impact of the COVID19 Behavioral, Social, Adaptive, Vocational: Pandemic on Autism and Other Substance Use Among Adolescents and Neurodevelopmental Conditions: Lessons Adults on the Spectrum Learned from Studies across 9:00 AM – 11:00 AM Panel — Cellular Models/Stem Cells: the Lifespan Harnessing the Potential of Induced 12:45 PM – 2:45 PM Panel — Medical and Psychiatric Comorbidity: Pluripotent Stem Cells to Model Autism Novel Findings to Inform Suicide Prevention Spectrum Disorders for Autistic Individuals 9:00 AM – 11:00 AM Panel — Communication and Language: Vocal 12:45 PM – 2:45 PM Panel — Molecular Genetics: Large-scale Development in Infants and Children with ASD Gene Discovery in Autism and Converging and at Risk for ASD Pathways of Autism Risk 9:00 AM – 11:00 AM Panel — International and Cross-Cultural 12:45 PM – 2:45 PM Panel — Novel Therapeutic Approaches Perspectives: Cultural Perspectives on (gene, protein or RNA targeted therapies): Families’ Experience of Autism and Autism Advances in Gene-Based Services Therapies in Neurodevelopmental Disorders 9:00 AM – 11:00 AM Panel — Other - Multiple Topic Areas: New 12:45 PM – 2:45 PM Panel — Social Cognition and Social Behavior: Approaches to Parsing Heterogeneity in Global Insights on Understanding and Autism and Understanding Cross-Disorder Reducing Autism Stigma Similarities 9:00 AM – 11:00 AM Panel — Sensory, Motor, and Repetitive Behaviors and Interests: Conceptualizing SIG SESSIONS (pre-registration required) Motor Impairments within the Broader 3:00 PM – 4:30 PM Special Interest Group (SIG): Autism and Framework of Autism Spectrum Disorder Related Disorders in the Context of (ASD): Their Value in Early Diagnosis and Humanitarian Emergencies the Diagnostic Process 3:00 PM – 4:30 PM Special Interest Group (SIG): Autism Research 9:00 AM – 11:00 AM Panel — Service Delivery/Systems of Care: with the Postmortem Brain Decentralizing ASD Knowledge, Resources, 3:00 PM – 4:30 PM Special Interest Group (SIG): Improving Health and Services Away from ASD Specialists Outcomes Across the Lifespan: Harnessing into Diverse Communities Data from Individuals on the Autism GENERAL SESSIONS Spectrum, Families, Clinicians, 11:15 AM – 12:15 PM Keynote - Stormy Chamberlain, PhD and Care Systems 12:15 PM – 12:45 PM BREAK 3:00 PM – 4:30 PM Special Interest Group (SIG): Transition Age Youth with Autism: Are We Meeting the Needs of an Understudied Population? EXHIBITS EVENT 11:00 AM – 2:00 PM 5:00 PM- 6:00 PM Event — Student Social and Booth (North America)

FRIDAY MAY 7 POSTER ON-DEMAND 10:00 AM-11:30 AM Event — INSAR Business Meeting – Members ALL DAY ePosters On-Demand Access with online Q&A Only – (pre-registration required) 12:00 PM – 4:30 PM Event — Cultural Diversity Career Advancement EVENTS Program (C-CAP) Launch Event 9:00 am- 10:00 am Event — Student Social Booth (Europe/Africa) (pre-registration required)

10 INSAR 2021 VIRTUAL IN-CONJUNCTION EVENTS

Monday, May 3 Special Interest Group (SIGs) Student & Trainee Workshop 10:00 AM - 11:30 AM EDT 12:00 PM - 3:00 PM EDT Pre-registration required. Seats are limited. Available all attendees. The topic for this year’s Student and Trainee Preconference These events are open to all attendees; however, pre-registration is Workshop is, “Increasing Access & Representation.” Student and required as there the events are limited to 100 participants. Attendees trainee attendees will hear from a diverse panel of faculty on may only register for (1) SIG. the facilitators and barriers to their own success in a variety of career paths. Following the panel presentations, attendees will have the opportunity to join smaller informal group discussions SIG: Autism and Schizophrenia: Understanding the with expert faculty facilitators. Overlap Current Student & Trainee members are eligible to register for this SIG Leader: Jennifer Foss-Feig, PhD event. Pre-registration required. Seats are limited. SIG Co-Leader: Amandeep Jutla, MD NOTICE: Registration for Student & Trainee events is on a first- come, first-served basis for current INSAR Student Members. Individuals with autism are more likely to develop schizophrenia than the general population, yet the relationship between autism and schizophrenia is under-studied, with little known about how to Networkshop identify who is at risk. This special interest group session aims to connect researchers interested in the important relationship between 4:00 PM - 5:30 PM EDT these disorders. It will feature data blitz presentations that highlight For this year’s virtual annual meeting, the Student Trainee key dimensions of the autism/schizophrenia overlap, small group Committee (STC) is excited to offer a new virtual event to help discussions that provide an opportunity for networking, and a large students and trainees master networking: The Networkshop. group discussion of future collaborative opportunities. This novel event will provide students and trainees with the unique opportunity to learn about networking from leading experts in a safe environment. SIG: Building on the Strengths of Autistic Scholars The event will feature an interactive didactic session with an by Addressing Systemic Barriers to Autistic internationally recognized expert in networking, mentorship, and Success in Academia coaching. The event will also include a panel with world-leading SIG Leader: Dena L. Gassner, MSW autism scientists who will share information and practical tips for networking at conferences in a moderated discussion SIG Co-Leader: Patrick Dwyer featuring questions from the audience. This SIG, led by autistic scholars and relatives of autistic people, seeks to identify student strengths and systemic challenges experienced Pre-registration required. Must be a current Student or Trainee. by autistic researchers/ mentors. The employment barriers faced by autistic people more generally also impact autistic academics. This SIG will examine experiences of autistic academics and stakeholders to develop policy recommendations to make institutions of higher education more supportive of autistic scholars, thus increasing autistic representation across academia, reducing stigma, and improving autism research.

Wednesday, May 5

Autism Research Author Workshop 3:00 PM - 5:00 PM EDT Open - No pre-registration required This workshop will cover everything you need to know on how to publish your next paper, including an overview of best practices for writing and submitting your paper, and maximizing the impact of your research. Session supported by Wiley, publisher of our society journal, Autism Research.

11 INSAR 2021 VIRTUAL IN-CONJUNCTION EVENTS

Thursday, May 6

Special Interest Group (SIGs) 3:00 PM - 4:30 PM EDT Pre-registration required. Seats are limited. Available to all attendees. These events are open to all attendees; however, pre-registration is required as there the events are limited to 100 participants. Attendees may only register for (1) SIG.

SIG: Transition Age Youth with Autism: Are We SIG: Autism and Related Disorders in the Context of Meeting the Needs of an Understudied Population? Humanitarian Emergencies SIG Leaders: Helen Genova, PhD & Connie Sung, PhD SIG Leader: Ramzi Nasir, MD, MPH SIG Co-Leaders: Kari Sherwood, MS, MEd, MSW & Aditi Arora, Ph.D SIG Co-Leader: Alaa Ibrahim While most research in autism is focused on younger children, The Autism and Related Disorders (ARD) in the Context of transition age youth are a vulnerable, understudied and underserved Humanitarian Emergencies SIG (2019 and 2020) served as a platform subpopulation, highlighting the need for increased awareness and of communication and collaboration between autism researchers and investigation of much needed services. We hope that this SIG will key stakeholders in the humanitarian setting. Building on this network, increase collaborations of scientists, clinicians and community in this year’s SIG, we aim to address knowledge gaps and bring members, which will lead to innovative research, increased services forward solutions in the area of intervention focusing on technical, and practical guidelines for supporting transition age youth with methodological and ethical aspects in the humanitarian setting. autism. SIG: Autism Research with the Postmortem Brain SIG: Improving Health Outcomes Across the Lifespan: SIG Leader: David Amaral, PhD Harnessing Data from Individuals on the Autism SIG Co-Leader: Brie Wamsley, PhD Spectrum, Families, Clinicians, and Care Systems Postmortem brain research in disorders such as Alzheimer’s and SIG Leader: Beth Malow, MD Parkinson’s disease has provided the clearest evidence about causes SIG Co-Leader: Jennifer Ames, PhD and potential treatments. This SIG aims to foster postmortem This SIG will continue to explore health conditions and healthcare brain research of Autism Spectrum Disorder. It will bring together needs in autistic individuals across the lifespan. Our ability to geneticists, neuroanatomists, neuropathologists, immunologists leverage larger health datasets and patient-reported outcomes and others to energize a renaissance in postmortem research in across multiple healthcare systems is expanding rapidly. These data autism. It will also be an introduction to this area of research for provide a deeper, longitudinal understanding of health problems trainees and mature scientists alike. and care disparities in autism, tie health conditions to other aspects of quality of life and lay important groundwork for interventions to improve health and wellbeing.

Student Social and Booth This year, the Student Social and STC Booth have combined (virtual) forces! Join us online for peer networking and to learn more about the STC at one of three times, intended to be accessible to students and trainees globally. The Student Social offers a great opportunity for students and trainees to network with one another in small groups. One breakout room within each Social will comprise our virtual Booth where students and trainees can learn more about INSAR events and resources relevant to them. These events will be facilitated by STC committee members, so it’s also a chance for students and trainees to meet the STC members and learn more about our committee! Student Social: Australia/Asia 4:00 AM – 5:00 AM EDT Student Social: North America/South America 5:00 AM – 6:00 AM EDT

12 INSAR 2021 VIRTUAL IN-CONJUNCTION EVENTS

Friday, May 7

Student Social: Europe/Africa Cultural Diversity Career Advancement Program 9:00 AM – 10:00 AM EDT (C-CAP) Launch Event This year, the Student Social and STC Booth have combined (virtual) 12:00 PM - 4:30 PM EDT forces! Join us online for peer networking and to learn more about The C-CAP Launch Event will include a Keynote Address with Q&A, a the STC at one of three times, intended to be accessible to students Panel presentation with a Q&A session, as well as breakout sessions and trainees globally. The Student Social offers a great opportunity for networking and topical discussions. for students and trainees to network with one another in small About C-CAP: The Cultural Diversity Career Advancement Program groups. One breakout room within each Social will comprise our (C-CAP) is a new initiative for the Cultural Diversity Committee. virtual Booth where students and trainees can learn more about C-CAP aims to facilitate the career development of individuals INSAR events and resources relevant to them. These events will primarily from LMIC and historically underrepresented groups from Thursday, May 2 & Friday, May 3 be facilitated by STC committee members, so it’s also a chance for the US and other HIC who are interested in a career involving ASD students and trainees to meet the STC members and learn more research by providing mentoring and training. about our committee! Researchers at any stage of their career (early, mid, late) who Pre-registration required. Seats are limited. believe they can benefit from the program may participate. Pre-registration is required. This event is limited to 150 participants, INSAR Annual Business Meeting spots are reserved are on a first come first serve basis. 10:00 AM - 11:30 AM EDT INSAR members are invited to the society’s annual business meeting to hear an update on INSAR year-round activities. We will also recognize newly inducted INSAR Fellows, incoming and outgoing board members and organizers of this year’s meeting. Pre-registration is required. Must be a current INSAR Member.

13 INSAR 2021 VIRTUAL KEYNOTE SPEAKERS

Stormy J. Chamberlain, Ph.D Thursday, May 6, 11:15am - 12:15pm EDT Stormy is the John and Donna Krenicki Professor of Genomics and Personalized Health Care and an Associate Professor of Genetics and Genome Sciences and Pediatrics at the University of Connecticut School of Medicine. She earned an A.B. degree in Molecular Biology from Princeton University and a Ph.D. in Medical Sciences-Genetics from the University of Florida. Her lab uses human pluripotent stem cells to study gene regulation underlying Angelman, Prader-Willi, and 15q duplication syndromes, and is playing a critical role in developing genetic therapies to treat these disorders. In addition to her role at UConn, she currently chairs the Scientific Advisory Committee (SAC) at the Angelman Syndrome Foundation.

Prof Petrus J de Vries MBChB, FRCPsych, PhD Tuesday, May 4, 10:00am -11:00am EDT Petrus de Vries is the Sue Struengmann Professor of Child & Adolescent Psychiatry, and Founding Director of the Centre for Autism Research in Africa at the University of Cape Town, South Africa. He trained in Medicine at Stellenbosch University in South Africa before moving to the UK where he completed his clinical training in Psychiatry and Child & Adolescent Psychiatry, and a PhD in Developmental Neuroscience at the University of Cambridge. He returned to South Africa in 2012. He has a clinical research interest in assessment and intervention for infants, young children and adolescents with complex neurodevelopmental and mental health needs. Since his return to South Africa he has focused on global child & adolescent mental health and on implementation science research in low- and middle-income settings. Apart from his interest in autism, he has a longstanding clinical research programme in Tuberous Sclerosis Complex and its associated neuropsychiatric disorders (TAND). Prof de Vries was chairman of the Society for the Study of Behavioural Phenotypes (SSBP), an international, interdisciplinary research organization, from 2008-2017, and was on the WHO ICF-CY steering group for autism spectrum disorders and ADHD, under the chairmanship of Prof Sven Bolte. He is the President of the South African Association for Child & Adolescent Psychiatrists and Allied Professions (SA-ACAPAP), chairman of the African Division of the Royal College of Psychiatrists (RCPsych) and Treasurer of the International Association of Child & Adolescent Psychiatry and Allied Professions (IACAPAP) where he also coordinates the Helmut Remschmidt Research Seminars (HRRS), an international research capacity building programme. The Centre for Autism Research in Africa was awarded the inaugural INSAR Cultural Diversity Research Award in 2018. At the same meeting Prof de Vries was elected as Charter INSAR Fellow.

Prof Tony Charman, PhD Wednesday, May 5, 10:00am -11:00am EDT Tony is Professor in Clinical Child Psychology at the Institute of Psychiatry, Psychology & Neuroscience, King’s College London. His main research interest is the investigation of social cognitive development in children with autism and the clinical application of this work via screening, diagnostic, epidemiological, intervention, and family history infant studies. He is the lead Clinical Psychologist in a specialist service for children with autism and complex neurodevelopmental conditions at the South London and Maudsley NHS Foundation Trust. Tony has published more than 350 peer-reviewed papers and over 30 book chapters. He has served on a number of expert panels for the MRC and NICE in the UK, NIH in the USA and the WHO. He has worked closely with autism sector charities to advocate for services and positive policy development for individuals with autism and their families.

Lucina Q. Uddin, PhD Wednesday, May 5, 1:45pm - 2:45pm EDT After receiving a Ph.D. in cognitive neuroscience from the Psychology Department at UCLA in 2006, Dr. Uddin completed a postdoctoral fellowship at the Child Study Center at NYU. For several years she worked as a faculty member in Psychiatry & Behavioral Science at the Stanford School of Medicine. She joined the Psychology Department at the University of Miami in 2014, where she currently directs the Brain Connectivity and Cognition Laboratory and the Cognitive and Behavioral Neuroscience Division. Dr. Uddin’s research uses approaches from network neuroscience to examine the organization of large-scale brain networks supporting executive functions. Her current projects focus on understanding dynamic network interactions underlying cognitive inflexibility in neurodevelopmental disorders such as autism. Dr. Uddin’s work (over 140 publications) has been published in the Journal of Neuroscience, Cerebral Cortex, JAMA Psychiatry, Biological Psychiatry, and Nature Reviews Neuroscience. She was awarded the Slifka/Ritvo Innovation in Autism Research Award by INSAR in 2013 and the Early Career Investigator Award by the Organization for Human Brain Mapping in 2017.

14 INSAR 2021 INSAR FELLOWS

In 2017, INSAR initiated a program to honor distinguished members of the International Society for Autism Research whose research has made a significant international impact on the scientific understanding of autism spectrum disorder, clinical practice, educational methods, and/or policy. Those honored are conferred the title of INSAR Fellow. On an annual basis, we will honor these Fellows at our Annual meeting. The 2021 Fellows will be honored at the Annual Business Meeting on Friday, May 7, 2021. 2021 INSAR Fellows Nirit Bauminger-Zviely IL Simon Baron-Cohen UK Lisa Croen USA Daniel Geschwind USA Angelina Kakooza.M UG Rebecca Landa USA David Mandell USA Sally Ozonoff USA Margot Prior (awarded posthumously) AUS Stephen Scherer CAN Xiu Xu CN Fellows Selection Committee Cheryl Dissanayake, Chair AUS Petrus de Vries, Co-Chair ZAF Simon Baron-Cohen UK Sven Bolte SWE Thomas Bourgeron FRA Jan Buitelaar NLD Francesca Happé UK Yong-Hui Jiang USA Cathy Lord USA Marshalynn Yeargin-Allsopp USA Lonnie Zwaigenbaum CAN

15 INSAR 2021 AWARDEES

INSAR Lifetime Achievement Award The Lifetime Achievement Award is given annually by the INSAR Board. This award acknowledges an individual who has made significant fundamental contributions to research on autism that have had a lasting impact on the field. The focus of the awardee’s research can be in any discipline.

Helen Tager-Flusberg, PhD Helen Tager-Flusberg received her Bachelors in Science in Psychology from University College London, and her doctorate in Experimental Psychology from Harvard University. Since 2001 she has been at Boston University, where she is now Professor of Psychological and Brain Sciences, and Director of the Center for Autism Research Excellence. She has devoted her lengthy career to conducting research on autism and other neurodevelopmental disorders including children with developmental language disorders and genetic syndromes, exploring variability in phenotypic expression and investigating developmental and intervention-based changes in language and social cognition using behavioral and brain imaging methodologies. Her research has been funded by the National Institutes of Health and private foundations and she has had the good fortune to lead several multi-site multidisciplinary autism research programs including CPEA, STAART and ACE Centers. She has edited seven books and written over 200 journal articles and book chapters. She is the Past President of INSAR (2011-2013), serves on the editorial board of several professional journals and is Section Editor (Cognition and Behavior) for the Journal of Neurodevelopmental Disorders. She regularly presents her work at scientific and professional conferences and to parent advocacy groups and other stakeholders in the US and in countries around the world.

INSAR Cultural Diversity Research Award The Cultural Diversity Research Award seeks to support and recognize research with significant impact on culturally diverse and underserved communities. The goal of the award is to support investigators who conduct community-based or community partnered research that seeks to leave a lasting impact on underserved and under-researched communities beyond the scope of a single research study.

2021 Awardee Professor Chongying Wang, PhD Dr. Chongying Wang obtained her doctorate from the University of Oxford, UK and was Fulbright Scholar at Stanford University, USA. She is the founding director of Center for Behavioural Sciences, Nankai University, China and was associate professor at School of Medicine and now in the Department of Social Psychology, Zhou Enlai School of Government, Nankai University. Her research is focused on early identification and intervention of Autism Spectrum Disorders. She is vice-president of China Disabled Persons Rehabilitation Association Autism Expert Committee; executive director of China Disabled Persons Rehabilitation Association ABA Expert Committee; executive director of Behavioral Sciences Society of Tianjin Medical Association; Child Health Expert Committee member of Chinese Pediatric Society in Chinese Medical Association; Global Senior Leader for China, INSAR, etc. and she is Editor of Autism Research; Associate Editor of International Journal of Electronic Healthcare.

INSAR Advocate Award This award honors community members/advocates who have influenced the ability to carry out autism research.

John Elder Robison John Elder Robison is the Neurodiversity Scholar in Residence at The College of William & Mary in Williamsburg, Virginia. He is also a visiting professor of practice at Bay Path University in Longmeadow, MA and is the neurodiversity advisor to Landmark College in Putney, VT. John is an autistic self-advocate and an appointed member of national and international scientific and science policy-making bodies, including the federal government’s Interagency Coordinating Committee on Autism, the World Health Organization, and is a part of the Board of Directors for INSAR as the Chair of the Community Advisory Committee.

John is very active in his efforts to support and promote research leading to therapies or treatments that will improve the lives of people who live with autism in all its forms today. He is widely known as an advocate for people with autism and neurological differences. John’s service to the community and INSAR has been truly outstanding over the years and is why he was selected for the INSAR 2021 Advocate Award.

16 2020 INSAR AWARDEES

With the cancellation of the INSAR 2020 Annual Meeting, the Board of Directors decided to hold over all recognition awards until INSAR 2021. The 2020 Cultural Diversity Research Award, Dissertation Awards, and Young Investigator Awards will be recognized at the Awards Ceremony during INSAR 2021 Virtual on May 4, 2021.

INSAR Cultural Diversity Research Award Dissertation Awards The Cultural Diversity Research Award seeks to support and recognize Dissertation Awards are granted annually for the best dissertation in autism research with significant impact on culturally diverse and underserved accepted by the university in 2019 (i.e., successfully defended). These communities. The goal of the award is to support investigators who conduct awards offer a stipend of $1,500 each. Dissertation awardees will present community-based or community partnered research that seeks to leave a their dissertation research as a 5-minute presentation during the Awards lasting impact on underserved and under-researched communities beyond Ceremony at the INSAR 2021 Annual Meeting. the scope of a single research study. 2020 Awardees 2020 Awardee Waganesh A. Zeleke, Ed.D, LCPC, NCC Katherine E. Lawrence University of Southern California, USA Sophie Schwartz Boston University Dr. Waganesh Abeje Zeleke is an Associate Professor of Mental Health Counseling in the Department of Young Investigator Awards Counseling Psychology and Special education at Duquesne University. Dr. Zeleke work focuses on Young Investigator Awards are granted annually for the best empirical advancing culturally relevant practice for the needs research papers published or in press in the years 2019 by an investigator of children with Autism; she is especially dedicated to those who are who has been awarded their Ph.D. or M.D. in the past seven years. These from impoverished communities where school and community services awards offer a stipend of $1,500. can be uninformed about the needs of diverse groups. Not only does her 2020 Awardees work routinely emphasize the importance of understanding multicultural experiences, but her research also results in recommendations that are Vanessa H. Bal Rutgers University New Brunswick relevant for policymakers addressing the needs of children with Autism in the Predictors of longer-term development of expressive language in two U.S. and Ethiopia. independent longitudinal cohorts of language-delayed preschoolers with Autism Spectrum Disorder. J Child Psychol Psychiatry. 2019 Aug 19. doi: Dr. Zeleke is an Associate -Editor for Frontier in Special Education and serves 10.1111/jcpp.13117 as a council member for National Parenting Education Network. Dr. Zeleke’s track record includes more than thirty peer-reviewed publications, more than Meghan Miller University of California, Davis MIND Institute 50 peer -review presentations in national and international settings as well as several grants; all address the needs of disenfranchised groups including Sibling Recurrence Risk and Cross-aggregation of Attention-Deficit/ children with disabilities (especially Autism), immigrant families in the U.S. Hyperactivity Disorder and Autism Spectrum Disorder. JAMA Pediatr. and African families in Ethiopia. 2019;173(2):147-152. doi:10.1001/jamapediatrics.2018.4076 Dr. Zeleke is a licensed clinical mental health counselor. Her clinical experience includes assessment, counseling, clinical supervision, and consultation service in alternative education for children with special needs and trauma-informed intervention. Her professional practice and research agenda include Mindfulness, Trauma intervention, wellness, autism intervention, parenting consultation, attachment, multicultural assessment, and African children. Dr. Zeleke’s current research project focuses on understanding how systems and context shape individual mental health and wellbeing with a particular focus among immigrants and families of children with autism in Africa and the U.S.

17 INSAR 2021 AWARDEES

Slifka/Ritvo Innovation in Autism Diversity Awards Research Award Diversity / Low Income Countries Awards (including Early Career) will be provided to individuals who are currently members of INSAR, studying in The Alan B. Slifka Foundation promotes innovative research on autism or working in autism research in health-related institutions, universities, conducted by junior investigators. The objective of the award is to lead to public agencies, or other stakeholder-related activities. The awards will new treatments and improvements in the quality of life of individuals with be given to persons from racial, ethnic, and disability groups that have autism. The Foundation provides one $25,000 (for one year) research award been historically under-represented in the sciences in their home country. to an INSAR member. The award may support clinical research (diagnosis or This category of awards has been expanded to include funding for Early treatment of autism or educational efforts) or basic research (epidemiology, Career applicants from low-income countries. The awards will provide a genetics, neuroscience, immunology etc). The goal of the Slifka/Ritvo Award registration discount equal to the Member Early Bird registration rate for the is to support promising junior investigators to pursue excellent research recipient’s registration type. The purpose of the awards is to increase the for which they do not have funding and are not likely to get funding readily. participation of individuals currently under-represented in the biomedical, The recipient of the Slifka/Ritvo Award will be recognized at the Awards clinical, behavioral and social sciences, defined as: Individuals from under- Ceremony at INSAR 2021 Virtual Annual Meeting. represented racial and ethnic groups; Individuals from low income, low- middle income, and upper-middle income countries; Early Career researchers Shulamite Green, Ph.D. from low-income countries; Individuals with disabilities.. University of California, Los Angeles Semel Institute for Neuroscience and Human Behavior Bahareh Afsharnejad Curtin University Mary Agyapong King’s College London Testing the effect of a novel intervention on the biological mechanisms Marija Čolić University of Hawaii at Manoa underlying sensory over-responsivity in children with autism. Aaron Dallman Towson University Amber Davis University of California Davis Dissertation Awards Sarah DeMarchena University of Missouri Dissertation Awards are granted annually for the best dissertation in autism Marie Johnson Yale University accepted by the university in 2020 (i.e., successfully defended). These awards Connie Yang Western University offer a stipend of $1,500 each. Dissertation awardees will present their dissertation research as a 5-minute presentation during the Awards Ceremony Professionals from Low Income Countries Awards at the INSAR 2021 Annual Meeting. Subcategory of Diversity Awards providing a registration discount equal to 2021 Awardees the Member Early Bird registration rate for the recipient’s registration type. Stela Petkova University of California Davis Xingzheng Cao Jinging Medical College Sofie Vettori KU Leuven John-Joe Dawson-Squibb University of Cape Town Murat Eyuboglu Eskisehir Osmangazi Univ. Med.School Young Investigator Awards Monica Juneja Maulana Azad Medical College Young Investigator Awards are granted annually for the best empirical Olumuyiwa Kehinde University of Zululand research papers published or in press in the years 2020 by an investigator who Fathima Kodakkadan Anglia Ruskin University has been awarded their Ph.D. or M.D. in the past seven years. These awards Qiangmo Liu Tsinghua University offer a stipend of $1,500. Lavangi Naithani Jamia Millia Islamia Nisha Narvekar King’s College London 2021 Awardees Minkateko Ndlovu University of Cape Town Micheal Sandbank University of Texas at Austin Jannatara Shefa Bangabandhu Sheikh Mujib Med. Univ. Lin Sun Indiana University Project AIM: Autism Intervention Meta-Analysis for Studies of Young Children. Suma Suswaram University of Kansas Psychological Bulletin. 2020, Vol. 146, No. 1, 1–29. http://dx.doi.org/10.1037/ bul0000215

F. Kyle Satterstrom Harvard University Large-Scale Exome Sequencing Study Implicates Both Developmental and Functional Changes in the Neurobiology of Autism. Cell 180, 1–17 February 6, 2020 https://doi.org/10.1016/j.cell.2019.12.036 Autistic Researcher Awards Autistic Researcher Awards were created to help support autistic researchers attend and present their research at the INSAR Annual Meeting. The awards will provide a registration discount equal to the Member Early Bird registration rate for the recipient’s registration type. Monique Botha University of Stirling David Mason King’s College London Li Tan Anglia Ruskin University Marjorie Désormeaux-Moreau Université de Sherbrooke

18 INSAR 2021 AWARDEES

Student Awards Student/Trainee Awards are granted to undergraduate students, graduate students, postdoctoral fellows, medical students, and residents actively engaged in autism research. Student/Trainee must be presenting author on their submitted abstract to be eligible. These awards will provide a registration discount equal to the Student Member Early Bird registration rate. Yeojin Ahn University of Miami Rachel McDonald Montclair State University Derek Andrews UC Davis MIND Institute Erin McKenney Rowan University Stacy Arbuckle University of Oregon Walker McKinney University of Kansas Lorna Barry University of Limerick Alana McVey The University of British Columbia Emily Berich-Anastasio Johns Hopkins Bloomberg School of Public Health Elliot Millington University of Glasgow Jennifer Bertollo Virginia Tech Victoria Milner King’s College London Conner Black University of South Carolina Jacquelyn Moffitt University of Miami Olivia Boorom Vanderbilt University Medical Center Adriana Moses Santa Clara University Troy Boucher Simon Fraser University Julia Nauman Michigan State University Alice Bravo University of Washington Jessie Northrup University of Pittsburgh Alexis Brewe University of Alabama Broc Pagni Arizona State University Chloe Brittenham CUNY Graduate Center Kaitlynn Penner University of California, Santa Barbara Alexa Budavari Johns Hopkins Bloomberg School of Public Health Lauren Pisani Yale University Qing Cai University College London Charlotte Pretzsch King’s College London Nanami Carlson Western University Nicole Richard University of Toronto Bosi Chen San Diego State University Katherine Riley Seattle Children’s Research Institute/Seattle University Yu-Hsin Chen Pennsylvania State University Charlotte Rimmer McGill University Torrey Cohenour University of California, Los Angeles Yonat Rum Tel Aviv University Meredith Cola La Salle University Nicholas Russell Brigham Young University Elise Cummings Yale University Muskan Sait Western University Hadas Dahary McGill University Salam Salloum-Asfar Qatar Biomedical Research Institute , HBKU, QF Nada Dalloul University of California, Davis Zoe Sargent University of Virginia Christina Dardani University of Bristol Sarune Savickaite University of Glasgow Konnor Davis University of California Davis Rik Schalbroeck Maastricht University Elizabeth DeLucia Virginia Polytechnic Institute and State University Hillary Schiltz Marquette University Lauren Duvall University of Alabama Rachel Schuck University of California, Santa Barbara Kimberly Ellison Louisiana State University Jessica Schwartzman Vanderbilt University Medical Center Reina Factor UCLA Semel Institute Gabriela Sherrod University of Alabama at Birmingham Regina Fasano University of Miami Kari Sherwood University of Michigan Nicholas Fears University of North Texas Health Science Center Sapir Soker-Elimaliah City University of New York Emily Ferguson University of California Santa Barbara Leila Solouki University of California, Los Angeles Robin Finlayson University of Washington Wei Song Temple University Caroline Finn Yale University Medical School - Child Study Center Isabella Stallworthy University of Minnesota Maïte Franco University of Luxembourg Cassandra Stevens Yale University Jessica Goldblum University of North Carolina at Chapel Hill Mallory Stevens University of Missouri Julia Hagon Western University Gavin Stewart King’s College London Jacqueline Hampton Washington University in St. Louis Kayden Stockwell University of Virginia Kara Hannah University of Western Ontario Man Tamang The University of Queensland Kimberley Henderson University of Western Ontario Carolien Torenvliet Universiteit van Amsterdam Gabrielle Heselton Athabasca Univeristy Lauren Trafford University of Alberta Dorothy Hoang University of California, Davis Nisha Vashi York University Erin Hunt University Of South Carolina Elina Veytsman University of California, Riverside Alaa Ibrahim McGill University Ellen Wilkinson Rutgers University Alex Job Said The George Washington University Samantha Tze Sum Wong McGill University Amandeep Jutla Columbia University Tiffany Worley University of South Carolina Yesol Kim Purdue University Rachel Wulff University of California, Davis Juliette Lerner University of California, Los Angeles Minhang Xie Seattle Children’s Research Institute Talia Liu Vanderbilt University Medical Center

19 ACKNOWLEDGMENTS

The International Society for Autism Research (INSAR) is the professional organization that oversees the Annual Meeting. INSAR is responsible for appointing all committees that govern the organization and approving the content and format of the Annual Meeting.

INSAR Board of Directors (2019 – 2021) President Secretary Community Advisory Peter Mundy, PhD Petrus de Vries MBChB, FRCPsych, PhD Committee Chair The MIND Institute & Univ. of Cape Town (ex-officio) John Elder Robison School of Education Past-President Univ. of California, Davis College of William and Mary Simon Baron-Cohen, FBA President-Elect Univ. of Cambridge Communications Committee Chair Connie Kasari, PhD Past-Treasurer Center for Autism Research & Diana L. Robins, Phd (ex-officio) Treatment, Semel Institute Alison T. Singer Drexel Univ. Univ. of California, Los Angeles Autism Science Foundation Annual Meeting Exec. Scientific Vice-President Editor-in-Chief Program Committee Chair Cheryl Dissanayake PhD, MAP Autism Research Journal Olga Tennison Autism Research Centre (ex-officio) (ex-officio) La Trobe Univ. Joseph Buxbaum, PhD David G. Amaral, PhD Icahn School of Medicine at Mount Sinai Treasurer The MIND Institute Seaver Autism Center Marjorie Solomon, PhD, MBA Univ. of California, Davis The MIND Institute (President-Elect joined the Board in 2020) Univ. of California, Davis Medical Center

INSAR Committees Autistic Researchers Committee Finance Committee Co-Chair: Patrick Dwyer, Univ. of California, Davis Chair: Marjorie Solomon, Univ. of California, Davis Co-Chair: T.C. Waisman, Adapt Coaching & Training Co-Chair: Deborah Hilibrand, Hilibrand Foundation Awards Committee Membership Committee Chair: Stephan Sanders, Univ. of California San Francisco Chair: Susan Y. Bookheimer, Univ. of California, Los Angeles Communications Committee Nominations & Elections Committee Chair: Alison T. Singer, Autism Science Foundation Chair: Kasia Chawarska, Yale School of Medicine Co-Chair: Michele Villalobos, Univ. of Utah Scientific Standards Committee Community Advisory Committee Chair: David Amaral, The MIND Institute, Univ. of California, Davis Chair: John Elder Robison, College of William & Mary Special Interest Group (SIG) Committee Cultural Diversity Committee Co-Chair: Laura Anthony, Univ. of Colorado, Denver Co-Chair: Marshalyn Yeargin-Allsopp, Centers for Co-Chair: Mayada Elsabbagh, McGill Univ. Disease Control and Prevention Student & Trainee Committee Co-Chair: Shoba S. Meera, National Institute of Mental Chair: Alana McVey, The Univ. of British Columbia Health and Neurosciences Co-Chair: Jiedi Lei, King’s College London Co-Chair: Sandra Vanegas, Univ. of Texas at Austin INSAR 2021 Meeting Committee Co-Chair: Gulnoza Yakubova, Univ. of Maryland, College Park Chair: Sarah J. Spence, Boston Children’s Hospital Early Career Committee INSAR 2021 Scientific Program Committee Co-Chair: Kimberly Carpenter, Duke Univ. Chair: Evdokia Anagnostou, Univ. of Toronto Co-Chair: Subhashini Jayanath, Univ. of Malaya Medical Centre Co-Chair: Mustafa Sahin, Boston Children’s Hospital Fellows Committee 2019-2021 Exec Sc. Program Committee Chair: Cheryl Dissanayake, La Trobe Univ. Chair: Joseph Buxbaum, PhD Co-Chair: Petrus de Vries, Univ. of Cape Town

INSAR Staff INSAR Meeting Planning – Conference Direct Jennifer Gentry Stephanie Lehenbauer Joe Dymek Communications Assistant Administrative Director Jennifer Marshall Emily Mathis Susan Francis Associate Administrative Director Financial Manager INSAR Abstracts – The Conference Exchange (Confex) Jessica Klekowski Susan Beaston-Techiera Association Administrator

20 ACKNOWLEDGEMENTS

Meeting Committee Abstract Reviewers Ashley Harrison Vijaya Raman Meeting Chair: Nazim Abdel Aati Michal Harty Gordon Ramsay Sarah Spence, MD, PhD Haitham Amal Robert Hendren Jena Randolph Jennifer Bain Nicole Hendrix Susan Rivera Executive Scientific Program Moon Young Savana Bak Yann Herault Herbert Roeyers Committee Muideen Bakare Orit Hetzroni Eric Rubenstein Chair: Amanda Bakian Laura Hewitson Rachel Saffo Joseph Buxbaum, PhD Nico Bast Shiyong Huang Sivapriya Santhanam Members: Matthew Belmonte Susan Hyman Celine Saulnier Evdokia Anagnostou Natalie Berger Ana-Maria Iosif Diana Schendel Catalina Betancur Leandra Berry Subhashini Jayanath Lauren Schmitt Jan Buitelaar Terrence Bethea Allison Jobin A. J. Schwichtenberg Edwin Cook David Beversdorf Tiffany Jones Koyeli Sengupta Daniel Geschwind Anjana Bhat Stephen M. Kanne Rebecca Shaffer Rosa Hoekstra Jan Blacher Brandon Keehn Stephen J. Sheinkopf Alex Kolevzon Melissa Black Elizabeth Kelley Frederick Shic Jason Lerch Valerie J. Bolivar Tal Kenet Wendy Shih Gaia Novarino Sven Bolte Dan Kennedy Stephanie Shire Margaret Pericak-Vance Catherine Bradley Cheryl Klaiman Cory Shulman Avi Reichenberg Jessica Bradshaw Laura Klinger Michael Siller Mustafa Sahin Audrey Brumback Judah Koller Jessica Simacek Audrey Thurm Jacob Burack Sara Kover David Simmons Ricardo Canal-Bedia Jennifer Kremkow Wing So Scientific Program Alice Carter Pradeep Raj Krishnappa Babu Mikle South Committee Michelle Chandley Clara Lajonchere Sarah Spence Chair: Ya-Chih Chang Gary Yu Hin Lam Jennifer Stapel-Wax Evdokia Anagnostou, MD Tony Charman Miriam Lense Katherine Stavropoulos Co-Chair April Boin Choi Matthew Lerner Jessica Steinbrenner Mustafa Sahin, MD, PhD Marija Čolić Longchuan Li Samanmali Sumanasena Xiao-Qing Liu Lin Sun Members: Francesco Craig Jennifer Bain Sarah Curtiss Eric London Helen Tager-Flusberg Matthew Belmonte Andrew Dakopolos Paul Luelmo Zohreh Talebizadeh David Beversdorf Aaron Dallman Ruth Ann Luna Lauren Thompson Anjana Bhat Meghan Davidson Kristen Lyall Audrey Thurm Sven Bolte Ashley de Marchena Ian Male Cong Tran Audrey Brumback Pushpal Desarkar Leslie Markowitz Rebekah Travis Tony Charman Marjorie Désormeaux-Moreau Melissa Maye Peng-Chou Tsai Tsai Ilan Dinstein Gabriel Dichter Christina McDonnell Andy Choi Yeung Tse Christine Ecker Emanuel DiCicco-Bloom Elizabeth McGhee Hassrick Tychele Turner Susan Faja Aisha Dickerson Camilla McMahon Jennifer Twachtman-Bassett Deborah Fein Ilan Dinstein Shoba Meera Alena Valderrama Robin Goin-Kochel Peter Doehring Sunil Mehta Daniel Valdez Matthew Goodwin Sarah Dufek Rahul Mittal Marilyn Van Dyke Jonathan Green Christine Ecker Eric Moody Sandra Vanegas Susan Hyman Inge-Marie Eigsti Lindee Morgan Roma Vasa Stephen Kanne Crystal Engineer Jennifer Moriuchi Michele Villalobos Matthew Lerner Adrien Eshraghi Michael Morrier Stephen Walker Eric London Annette Estes Joanna Mussey Gregory Wallace Ann Neumeyer Tawakalt Fagbayi Natalie Nagpal Chongying Wang Liz Pellicano Susan Faja Letitia Naigles Katherine Warnell Jennifer Marie Phillips Casara Ferretti Cecilia Nava Zachary Warren Diana Schendel Inna Fishman A. Rebecca Neal-Beevers Cynthia Waugh Koyeli Sengupta Judy Flax Ann Neumeyer Sara Jane Webb Fred Shic Christine Freitag Wei Niu Ya Wen Jill Silverman Naoufel Gaddour Ilse Noens Stormi White Stephen Smith Devon Gangi Christine Nordahl Andrea Wieckowski Jason Stein Elena Ghionis Kerri Nowell Sarah Wigham Tychele Turner Kristen Gillespie-Lynch Sally Ozonoff Diane Williams Zach Warren Jessica Girault Gahan Pandina Jason Wolff Cheryl Glazebrook Lucia Peixoto Gulnoza Yakubova Robin Goin-Kochel Elizabeth Pellicano Hsiu-Wen Yang Sylvie Goldman Jaime Pereira Marshalyn Yeargin-Allsopp Matthew Goodwin Jennifer Phillips Luodi Yu Georgianna Gould Katherine Pickard Matthew Zajic Sheffali Gulati Eve-Marie Quintin Lonnie Zwaigenbaum Jill Harris Shyam Rajagopalan

21 INSAR INSTITUTE 2021 SAVE THE DATE FOR THE 2021 INSAR INSTITUTE! (formerly INSAR Summer Institute) JUNE 17 – JULY 22

Autism and Intersectionality

This year, our theme is Autism & Intersectionality. The 2021 six-week webinar series will focus on understanding autism research and autistic people’s experiences across multiple identities and groups (i.e., race, gender, sexual orientation, neurodiversity, culture, poverty).

Each presentation will consider autism research and autistic experiences from an intersectional perspective. Presentations will be followed by Q&A with the expert presenter(s).

Seminars are designed for students, post-doctoral fellows, early-career investigators, families, service providers and people with autism and their families. Anyone is welcome to attend.

www.autism-insar.org/Institute

22 GENERAL INFORMATION

INSAR 2021 - Shifting to Virtual Language The INSAR Board decided in February 2021 that the INSAR 2021 Annual Meeting The official language of the Annual Meeting is English. Translation services will not would be a fully virtual event with extended dates (Monday, May 3 – Friday, May 7). be available for any reason. Captions will be available with on-demand recordings in Unfortunately, we were not able to hold an in-person event in Boston, MA, USA due the virtual platform. to travel and event restrictions with the current COVID-19 pandemic. Program Changes INSAR 2021 Virtual offers attendees an opportunity for access to more content INSAR cannot assume liability for any changes in the program due to external or than they have had at our past in-person events. Instead of choosing one unforeseen circumstances. concurrent oral or panel session to attend at the in-person event, registrants will have access to on-demand session recordings for 30 days following the meeting to Abstracts view all panel or oral sessions. Abstracts from the Annual Meeting are available on the INSAR website. An archive Reduced registration costs are available for students and researchers from low- of past meeting abstracts is also available online. and middle- income countries (LMIC). Reduced registrations and the elimination Recording Policy of travel costs will hopefully make INSAR 2021 the most global and economically Participants may not record or transmit any sessions, presentations, panels, egalitarian conference ever. videos, Q&A, breakout sessions, discussions, or any other content that is shared We are excited to see the expanded global reach this virtual opportunity offers to during the Annual Meeting. Participants may not take screen shots of any sessions, both presenters and attendees as we celebrate the 20th Anniversary of the INSAR chat room activity, or any other presentations and/or materials shared during the Annual Meeting virtually! Annual Meeting.

Code of Conduct

INSAR 2021 Virtual Annual Meeting

INSAR represents a safe and welcoming community for all participants at all events, including attendees, speakers, exhibitors, staff members, volunteers, and any other associated parties. Everyone who attends or is associated with the virtual Annual Meeting, and all related events, must agree to abide by the following code of conduct. This code of conduct extends to all INSAR-sponsored events related to the Annual Meeting, such as the Virtual 5K. If you participate in any INSAR virtual event, your presence and participation is agreement that you will abide by this code of conduct.

1. Zero Tolerance Policy for Harassment and Discrimination INSAR does not accept any form of discrimination or harassment by any participant or staff at the Annual Meeting or any related events. Unacceptable behavior is met with immediate removal from the meeting sessions without warning or refund, and INSAR reserves the right to take any other necessary and appropriate action. INSAR reserves the right to ban participants from future virtual and in-person events. Unacceptable behaviors include: - Harassment or intimidation in any form - Discrimination or abuse based on (but not limited to) gender, sexual orientation, disability, race, religion, national origin, physical appearance - Sending, posting, or sharing nudity, sexual images, or other inappropriate links or materials - Stalking, “doxing”, or threatening to stalk or “dox”, any participant or staff member/service provider If you are being harassed, threatened, or discriminated against, please contact Jennifer Gentry (jgentry@autism- insar.org) so that INSAR can take the appropriate action.

2. Participation During Sessions During sessions, all participants must adhere to virtual meeting etiquette appropriate of a professional meeting, including but not limited to: - Participants must comply with instructions from the session moderator and INSAR staff. - Participants may not post unrelated materials in chat, such as solicitation for services, job offers, product announcements, or other promotional materials. - Participants should keep themselves muted during a speaker’s presentation, during questions being asked by other participants, and in general unless asking a question when Q&A is opened. - Any disruptive posting or verbal discussion will result in the offender being removed from the session without warning or refund. INSAR reserves the right to take any action necessary to ensure an environment in which all participants can benefit from the presentation. By agreeing to this code of conduct, you understand that, should any actions result in being removed from a session, you will not be issued a refund, and can be banned from future INSAR events. International Society for Autism Research (INSAR) 400 Admiral Blvd, Kansas City, MO, USA P: +1 816.595.4852 E: [email protected] www.autism-insar.org

23 GENERAL INFORMATION

Virtual Event Platform Access the Virtual Platform: https://insar.confex.com/insar/2021/meetingapp.cgi

Navigating the Platform

To start, please take a moment to set up your attendee profile. When you set up recordings. This was made possible by your Keynote, Oral, and Panel presenters your profile you will be given the opportunity to ‹Connect› with other attendees. submitting a pre-recording prior to the meeting and then editing an auto-generated This is voluntary and no personal information will be shared without your consent. transcript of that recording. We appreciate the efforts on their part to make this important offering happen! Next, take a look at the left-hand navigation menu. Here you can search or browse events scheduled for this meeting using the ‹Schedule› tab and create your own This year’s In-Conjunction events include the Student and Trainee Committee’s schedule of events, which you can find under the ‹My Schedule› tab. ‹My Schedule› Pre-Conference Workshop, Networkshop, and Student Social events; the annual is simply a planning tool, to create your personal schedule. It is not a way to register Autism Research Author Workshop; the new Cultural Diversity Career Advancement for sessions. Program (C-CAP) Event; and the Special Interest Groups (SIGs). Many of these events required pre-registration and had limited capacity. If you registered for All Oral, Panel, and Keynote sessions are available to every attendee. Additionally, one of these events, you will see the ‹Join Now› button appear for the session 30 ePosters are available On-Demand starting May 3 at 1:00 pm ET, with Q&A available minutes prior to the event start time. through May 7 with the presenting authors. Plan time to visit the 2021 Exhibitor booths where you can schedule appointments To find a session, either check the Schedule link on the navigation list or use the for one-on-one discussions, view informational videos, and download materials. Topic Areas or Search sections for concurrent Panel and Oral sessions. Use the They have great information to share with you and we thank them for taking part in ePosters link to access over 1,000 Poster presentations. Click on the Session title our first Virtual Exhibit Hall. to access details of the session including a list of individual presentations. Click on presentation titles to access abstracts. Abstracts are embargoed until Monday, Compete with your fellow colleagues in the 2021 Attendee Games and get more May 3 at 1:00 pm ET. All sessions will start at their scheduled time. On-demand out of the INSAR 2021 Virtual Meeting by making sure you don’t miss a thing. recordings will be posted for viewing on the session pages and accessible to Participants will earn points towards prizes including Complimentary Registration registrants for the 30 days following the meeting until June 7th, 2021. to the INSAR 2022 Annual Meeting and Digital Gift Cards. Prizes will be awarded to the top 10 point holders at the end of the Meeting. Winners will be notified following Closed Captioning is available for the majority of on-demand recordings. You have the meeting. an option to toggle closed captioning «on» or «off» while viewing the on-demand

24 GENERAL INFORMATION

Joining Live Sessions (May 3 - May 7) On-Demand Access (May 3 – June 7)

All sessions will be held in Zoom. The majority in Zoom Webinar and some sessions All meeting content (E-Posters and session recordings) will be available to meeting in Zoom Meeting. It is recommended to download the most current version of Zoom registrants for on-demand access until June 7 via the virtual platform. Speakers so you will have access to the latest features offered when using Zoom both as an submitted pre-recorded videos for Keynote, Panel and Oral presentations and edited attendee and as a presenter. transcripts to ensure accurate Closed Captioning (CC) for their talks.

Meeting Registrants Access: A «Join Now» button will display on the Schedule page The recordings posted of each full session that includes live Q&A have auto- for all sessions that are available for you to attend. The Join Now link will appear generated, unedited captioning. View the individual talk recordings posted to watch approximately 10 minutes prior to the session start time. For sessions that had with speaker edited Closed Captioning. Closed captioning can be toggled on and limited slots and required pre-registration, the «Join Now» button will only appear off for recordings unless the speaker submitted a pre-recording file with it already to those registrants confirmed in that session. All pre-registration sessions are at included. capacity and closed.

Presenter Access Varies by Session Type. Details were provided in the Zoom Training Sessions offered to all Presenters and sent via email. ALL PRESENTERS are required to join 30 minutes prior to the scheduled session start time. More details on the Presenter Information page.

INSAR Membership: Currently, the membership benefits entail the following: MEMBERSHIP • Free abstract submission for the upcoming INSAR Annual Meeting • Reduced registration fee for the current year’s INSAR Annual Meeting JOIN • Eligibility to Lead a Special Interest Group (SIG) • Eligibility to serve as an Abstract Reviewer (Full members are eligible) • Eligibility to apply for INSAR Awards (travel and other) • Online subscription to Autism Research journal • Ability to vote (Student and Full members are eligible) • Ability to nominate for elected office in INSAR (Student and Full members are eligible) WWW.AUTISM-INSAR.ORG • Eligibility to participate in elected office in INSAR (Full members) • Eligibility to participate on INSAR Committees INSAR membership is open to individuals engaged in academic • Free submission of job postings on the INSAR Website (postings can be viewed by all visitors) or research activities (Full Members), graduate students and • Access to Members Only content post-doctoral researchers (Student Members), and others (Affiliate Members) vested in the study of autism. In order to qualify for membership benefits, fees must be paid annually and an initial application must be submitted to INSAR. *Reduced membership and registration rates are provided to those Visit the INSAR website at www.autism-insar.org today to complete a membership application individuals living and working in Low, Low-Middle, Upper Middle- Income countries (LMIC) as listed on the World Bank List of Economies.

25 2021 EXHIBITORS

Autism BrainNet Office of Autism Research Coordination Lilliam Acosta-Sanchez, Outreach Manager Lilliam Acosta-Sanchez, Outreach Manager Email: [email protected] Email: [email protected] Website: www.autismbrainnet.org and Website: iacc.hhs.gov Website: www.takesbrains.org The Interagency Autism Coordinating Committee (IACC) is a U.S. federal advisory Autism BrainNet is a collaborative network for the acquisition and distribution of committee that coordinates efforts, provides advice and informs the public on issues postmortem brain tissue to facilitate autism research and enhance our understanding of related to ASD research and services. The Office of Autism Research Coordination the underlying neurobiological causes of autism and related neurodevelopmental disorders. (OARC) coordinates and manages the IACC and related cross-agency ASD activities. Autism BrainNet is supported by the Simons Foundation Autism Research Initiative (SFARI).

Simons Foundation Autism Autism in Adulthood - Mary Ann Liebert, Inc. Research Initiative (SFARI) 140 Huguenot Street Anastasia Greenebaum New Rochelle , NY 10801, USA Communications Director Phone: 9147402100 160 Fifth Avenue, 7th Floor Sales Email: [email protected] New York, NY 10010 Phone: (646) 654-0066 Autism in Adulthood is the home for research and scholarship on the most pressing Email: [email protected] issues affecting adults on the autism spectrum, from emerging adulthood to later life. Website: www.sfari.org Using original research, in-depth analysis, and inter-professional dialogue, Autism in Adulthood provides new insights and evidence to promote practice, systems, and policy SFARI’s mission is to improve the understanding, diagnosis, and treatment of autism change. This innovative journal integrates the contributions of autistic adults - as spectrum disorders by funding innovative research of the highest quality and Editorial Board members, authors, peer-reviewers, and readers - into the peer-reviewed relevance. Since its launch in 2006, SFARI has supported over 550 investigators literature. studying autism-related research in the U.S. and abroad. Research projects include studies at the genetic, molecular, cellular, circuit and behavioral levels, in addition to clinical and translational studies.

Autism Speaks Thomas Frazier II, PhD SPARK Chief Science Officer Beverly Robertson 1 East 33rd St. Manager, Participant Engagement and Outreach New York, NY 02109 Simons Foundation Autism Research Initiative Email: info@autismspeaks. org Phone: (646) 362-0080 Website: www.autismspeaks.org Email: [email protected] Autism Speaks is dedicated to promoting solutions, across the spectrum and throughout SPARK’s mission is to speed up research and advance the understanding of autism to help the life span, for the needs of individuals with autism and their families. We do this improve lives. With a cohort of thousands, the research community will be able to draw on through advocacy and support; increasing understanding and acceptance of people with these data for their own research studies. Visit our booth for more details. autism; and advancing research into causes and better interventions for autism spectrum disorder and related conditions. To learn more about Autism Speaks, please visit AutismSpeaks.org. Tobii Pro Contact https://www.tobiipro.com/contact/sales for more information. Behavior Imaging Ron Oberleitner Tobii Pro helps business and science professionals gain valuable insights into human 106 N 6th St Suite 200-222 behavior. Our high-quality eye tracking solutions capture human behavior in a natural Boise, ID 83702 way, ultimately affording users access to valuable, objective data about real responses Email: [email protected] to stimuli. Phone: (208) 629-8778 x 3 Transforming the way clinicians research and evaluate autism remotely via BI’s award- Wiley Research winning online health platform, Our apps clinically guide caregivers to share video’d Melissa Asaro behavior data from home or school, and our HIPAA-conforming platform facilitates clinician Editor, Reasearch Publishing analysis. Ask about our AI-enhanced telehealth platforms to do autism diagnostic (NODA) Phone: (201) 748.8792 and behavior assessments. Email: [email protected] Website: www.wiley.com Brain Electrophysiology Lab Company (BEL) Wiley drives the world forward with research and education. Our scientific, technical, 1776 Millrace Drive medical, and scholarly journals and our digital learning, certification, and student-lifecycle Suite 304 services and solutions help students, researchers, universities, and corporations to Eugene, OR 97403 USA achieve their goals in an ever-changing world. For more than 200 years, we have delivered +1.541.525.9799 consistent performance to all of our stakeholders. [email protected]

BEL (Brain Electrophysiology Laboratory Company) is a neuroscience technology company dedicated to advancing the study and understanding of the human brain and to bringing new neuroscience tools into the hands of researchers.

26 SAVE THE DATE

AUSTININSAR TEXAS 2022 MAY 11-14 JW MARRIOTT AUSTIN TEXAS Abstract submission for the 2022 meeting is scheduled to open in September 2021. Watch our website for details. www.autism-insar.org International Society for Autism Research

27 AUTISM RESEARCH Submit your article January, 2018 | Volume 11 | Number 1 to Autism Research

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28 STRATEGIC INITIATIVES

INSAR Mission Statement To improve the lives of people affected by autism SCHEDULE ­­ AT by promoting the highest quality research. A GLANCE

BUILDING IDENTITY NEXT GENERATION Promote INSAR as the premier society for Foster opportunities for leadership and autism researchers. career development for a diverse next generation of autism researchers.

DIVERSE AND GLOBAL Represent and serve a diverse and global PARTNERSHIPS community. Foster understanding, communication, and collaboration between autism researchers and people affected by autism. INTERDISCIPLINARY AND TRANSLATIONAL Cultivate interdisciplinary and translational RESEARCH TO PRACTICE research, public-private partnerships, and Disseminate scientific knowledge to inform relationships with industry. research priorities, policy, practice, and public understanding.

SETTING THE BAR Increase the quality, diversity, and relevance of research promoted through annual meetings, journal, educational, and other year-round activities.

www.autism-insar.org

29 • INSAR 2021 VIRTUAL ANNUAL MEETING • Monday May 3, 2021

Events Event 010 - Press Conference Event 602 - Networkshop 12:00 PM - 1:00 PM 4:00 PM - 5:30 PM The Press Conference will be livestreamed on Facebook Live. Access through For this year’s virtual Annual Meeting, the Student Trainee Committee (STC) is the virtual meeting platform or visit the INSAR Facebook page. Recording will be excited to offer a new virtual event to help students and trainees master network- posted online following the session. ing: The Networkshop. This novel event will provide students and trainees with the unique opportunity to learn about networking from leading experts in a safe envi- ronment. The event will feature an interactive didactic session with an internation- Events ally recognized expert in networking, mentorship, and coaching - Isaac Serwanga. Event 601 - Student & Trainee Workshop The event will also include a panel with world-leading autism scientists who will share information and practical tips for networking at conferences in a moderated 12:00 PM - 3:00 PM discussion featuring questions from the audience. Autism Scientist joining the dis- cussion: David Mandell, PhD, Geri Dawson, PhD and Adriana Di Martino, MD. The topic for this year’s Student and Trainee Preconference Workshop is, “Increasing Access & Representation.” Student and trainee attendees will hear from a diverse panel of faculty on the facilitators and barriers to their own success Special Interest Groups (SIGs) in a variety of career paths. Following the panel presentations, attendees will have SIG 501 - Special Interest Group: Autism and Schizophrenia: the opportunity to join smaller informal group discussions with expert faculty facil- Understanding the Overlap itators. 10:00 AM - 11:30 AM Panelists: Brian Boyd, Juniper Gardens Children’s Project, University of Kansas, Kansas SIG Leader: Jennifer Foss-Feig, PhD City, KS SIG Co-Leader: Amandeep Jutla, MD Eva Loth, Department of Forensic and Neurodevelopmental Sciences, Institute of Individuals with autism are more likely to develop schizophrenia than the general Psychiatry, Psychology and Neuroscience, King’s College London, London, United population, yet the relationship between autism and schizophrenia is under-stud- Kingdom ied, with little known about how to identify who is at risk. This special interest Steven Kapp, Department of Psychology, University of Portsmouth, Portsmouth, group session aims to connect researchers interested in the important relationship United Kingdom between these disorders. It will feature data blitz presentations that highlight key dimensions of the autism/schizophrenia overlap, small group discussions that Gahan Pandina, Janssen Research & Development, Titusville, NJ provide an opportunity for networking, and a large group discussion of future col- Paul Wang, Simons Foundation / CRA, New York, NY laborative opportunities.

Special Interest Groups (SIGs) SIG 502 - Special Interest Group: Building on the Strengths of Autistic Scholars by Addressing Systemic Barriers to Autistic Success in Academia 10:00 AM - 11:30 AM

SIG Leader: Dena L. Gassner, MSW SIG Co-Leader: Patrick Dwyer SIG Small Group Discussion Facilitator: Edlyn Pena This SIG, led by autistic scholars and relatives of autistic people, seeks to identify student strengths and systemic challenges experienced by autistic researchers/ mentors. The employment barriers faced by autistic people more generally also impact autistic academics. This SIG will examine experiences of autistic academ- ics and stakeholders to develop policy recommendations to make institutions of higher education more supportive of autistic scholars, thus increasing autistic rep- resentation across academia, reducing stigma, and improving autism research.

30 • INSAR 2021 VIRTUAL ANNUAL MEETING • Tuesday May 4, 2021

Keynote Address Oral Session Event 100 - Welcome from Organizers and INSAR President Adult Outcome: Medical, Cognitive, Behavioral, Social, Address Adaptive, Vocational 9:00 AM - 10:00 AM Oral 301 - Social, Sexual and Neuropsychiatric Health in Autistic Adults 11:15 AM - 12:10 PM

11:15 301.001 Healthy Relationships for Autistic People: Intervention Keynote Address Development E. F. Rothman1 and L. Graham Holmes2,3, (1)Community Event 101 - Keynote - Petrus J. de Vries MBChB, FRCPsych, Health Sciences, Boston University School of Public Health, Boston, PhD MA, (2)Boston University School of Public Health, Boston, MA, (3)Hunter What Kind of Research Should We Do and Where Should College, City University of New York, New York City, NY We Do It? 11:27 301.002 The Sexual Preferences and Sexual Health of Autistic Adults 10:00 AM - 11:00 AM E. Weir, C. Allison and S. Baron-Cohen, Autism Research Centre, Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom Speaker: P. J. de Vries, Centre for Autism Research in Africa, Division of Child & Adolescent Psychiatry, University of Cape Town, Cape Town, 11:39 301.003 Functional Impacts of Co-Occurring ADHD Symptoms in 1 2 3 South Africa Autism across Adulthood S. C. Duane , B. E. Yerys , G. McQuaid , N. R. Lee4 and G. L. Wallace1, (1)The George Washington University, In 2001 the International Society for Autism Research (INSAR) Washington, DC, (2)Center for Autism Research, Children’s Hospital was founded and held its first international conference. The 20th of Philadelphia, Philadelphia, PA, (3)G, Washington, DC, (4)Drexel University, Philadelphia, PA anniversary of INSAR is a good time to reflect on the kind of research we should be doing in the autism and neurodevelopmental community, 11:51 301.004 Are Parkinsonism Features in Autism during Middle and and to consider where we should be focusing our research efforts over Older Adulthood Linked with Poor Outcomes? G. L. Wallace1 and G. the next 20 years. In this keynote, we will discuss two related research McQuaid2, (1)The George Washington University, Washington, DC, (2)G, journeys. The first is the story of Tuberous Sclerosis Complex (TSC)- Washington, DC Associated Neuropsychiatric Disorders (TAND) to illustrate how close partnership with the TSC community shaped our research questions and research strategies. The second is the story of autism in Africa Oral Session to illustrate how the realization that 95% of people with autism live in Animal Models low- and middle-income countries (LMIC) led to a paradigm shift in our Oral 302 - Modeling Autism Mutations from Fish to Human research. Cells 11:15 AM - 12:10 PM

11:15 302.001 Altered Brain-Wide Auditory Networks in a Zebrafish Models of Autism R. Poulsen, L. Constantin, G. Vanwalleghem and E. Scott, Queensland Brain Institute, University of Queensland, Brisbane, QLD, Australia

11:27 302.002 Germline Nuclear-Predominant Pten Murine Model Exhibits Impaired Social and Perseverative Behavior, Microglial Activation, and Increased Oxytocinergic Activity N. B. Sarn1,2, S. T. Thacker3, H. Lee4 and C. Eng5,6,7,8, (1)Department of Genetics and Genome Sciences, Case Western University, Cleveland, OH, (2)Genomic Medicine Institute, Cleveland Clinic Foundation, Cleveland, OH, (3)Genomic Medicine Institute, Lerner Research Institute of Cleveland Clinic, Cleveland, OH, (4)Genomic Medicine Institute, Lerner Research Institute, Cleveland, OH, (5)Genomic Medicine, Cleveland Clinic, Cleveland, OH, (6)Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, (7)Genomic Medicine, Cleveland Clinic Lerner Research Institute, Cleveland, OH, (8)Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH

31 • INSAR 2021 VIRTUAL ANNUAL MEETING • Tuesday May 4, 2021

11:39 302.003 Behavioral and Cellular Characterization of a New Mouse 11:39 303.003 Functional Connectivity Differences in Autism Spectrum Model for DDX3X Syndrome M. Garcia-Forn1,2,3,4, A. Boitnott1,2,3,4, D. C. Disorder Associated with SSRI Medication J. Bartolotti1,2 and M. Ung1,2,3,4, K. Niblo1,2,3,4, D. Mendonca1,2,3,4, M. Flores1,2,3,4, S. Maxwell1,2,3,4, W. Mosconi1,3, (1)Kansas Center for Autism Research and Training Y. Park1,2,3,4, J. Ellegood5, D. Grice1,2, J. P. Lerch5,6,7, R. M. Rasin8, J. D. (K-CART), University of Kansas, Lawrence, KS, (2)Life Span Institute, Buxbaum1,2,3,4,9, E. Drapeau1,2 and S. De Rubeis1,2,3,4, (1)Department of University of Kansas, Lawrence, KS, (3)Clinical Child Psychology Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, (2) Program, Schiefelbusch Institute for Life Span Studies, University of Seaver Autism Center for Research and Treatment, Icahn School of Kansas, Lawrence, KS Medicine at Mount Sinai, New York, NY, (3)Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, (4)The Mindich 11:51 303.004 Clinical and Biological Characterization of a New, Child Health and Development Institute, Icahn School of Medicine at Biologically-Defined, Subgroup of Patients with ASD: ASD Phenotype 1 2 3 1 Mount Sinai, New York, NY, (5)Mouse Imaging Centre, Hospital for Sick 1 (ASD-Phen1) S. Baudouin , M. Bosio , L. Boccuto , J. M. Hyvelin , 2 2 4 4 3 Children, Toronto, ON, Canada, (6)Department of Medical Biophysics, L. Perez-Cano , E. Guney , A. Tierney , R. Pauly , S. A. Skinner , J. 1 1 5 5 University of Toronto, Toronto, ON, Canada, (7)Wellcome Centre for Cachat , A. Souza , D. Charvin and L. Durham , (1)Drug Development Integrative Neuroimaging, University of Oxford, Oxford, United Kingdom, Unit (DDU), STALICLA SA, Geneva, Switzerland, (2)Discovery and Data (8)Department of Neuroscience and Cell Biology, Rutgers University, Science (DDS) unit, STALICLA SL, Barcelona, Spain, (3)Greenwood RWJ Medical School, Piscataway, NJ, (9)Department of Neuroscience, Genetic Center, Greenwood, SC, (4)Greenwood Genetic Center, Icahn School of Medicine at Mount Sinai, New York, NY Greenword, SC, (5)STALICLA SA, Geneva, Switzerland

11:51 302.004 Modeling Brain Overgrowth in Autism Using Human Pluripotent Stem Cells S. Chetty1, J. F. Hallmayer2, R. O’Hara3, C. Oral Session 4 4 5 4 W. Nordahl , M. Solomon , S. M. Rivera and D. G. Amaral , (1) Other - Multiple Topic Areas Psychiatry and Behavioral Sciences, Institute for Stem Cell Biology and Regenerative Medicine, Stanford University, Stanford, CA, (2) Oral 304 - Behavioral Treatment Trials Psychiatry & Behavioral Sciences, Stanford University, Stanford, CA, 11:15 AM - 12:10 PM (3)Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, (4)Department of Psychiatry and Behavioral Sciences, The Medical 11:15 304.001 Facing Your Fears in Schools: Implementing CBT for Anxiety Investigation of Neurodevelopmental Disorders (MIND) Institute, UC in Students with ASD in Urban Schools – Results from a Randomized Davis School of Medicine, University of California Davis, Sacramento, Trial. J. Reaven1, K. Pickard2, R. E. Boles3, A. Meyer1, C. Middleton3, CA, (5)Department of Psychology, University of California, Davis, Davis, L. Hayutin3, N. Reyes1, E. T. Engstrom4, T. Tanda5, A. C. Stahmer6 CA and A. Blakeley-Smith1, (1)JFK Partners, University of Colorado Anschutz Medical Campus, Aurora, CO, (2)Emory University School of Medicine, Atlanta, GA, (3)University of Colorado Anschutz Medical Oral Session Campus, Aurora, CO, (4)UC Davis MIND Institute, Sacramento, CA, (5) Interventions - Pharmacologic Developmental Pediatrics, Children’s Hospital Colorado, Aurora, CO, (6) UC Davis MIND Institute, University of California, Davis, Sacramento, CA Oral 303 - Pharmacological Treatment Studies 11:15 AM - 12:10 PM 11:27 304.002 Social Rhythmic Entrainment to Child-Directed Singing in ASD and TD Toddlers S. Chawla1, L. A. Edwards1, T. Liu2, Y. Wang2, W. Jones1 and M. D. Lense2, (1)Marcus Autism Center, Children’s Healthcare of Atlanta and Emory University School of Medicine, Atlanta, 11:15 303.001 Oxytocin Increases Amygdala Response to Emotional GA, (2)Vanderbilt University Medical Center, Nashville, TN Faces Among Autistic Women T. L. Procyshyn1, M. V. Lombardo2, B. 11:39 304.003 Supporting Caregivers Post Participation in Caregiver- Auyeung3, M. C. Lai4, S. Crockford5, J. B. Deakin6, S. Soubramanian7, Mediated Jasper Intervention: Needs and Assistance during Follow A. Sule8, S. Baron-Cohen1 and R. A. Bethlehem1, (1)Autism Research up S. L. Arbuckle1, S. Y. Shire2 and L. Baker Worthman3, (1)Special Centre, Department of Psychiatry, University of Cambridge, Cambridge, Education, University of Oregon, Eugene, OR, (2)University of Oregon, United Kingdom, (2)Center for Neuroscience and Cognitive Systems, Eugene, OR, (3)Department of Health and Community Services, St. Laboratory for Autism and Neurodevelopmental Disorders, Istituto John’s, Newfoundland and Labrador, Canada Italiano di Tecnologia, Rovereto, Italy, (3)University of Edinburgh, Edinburgh, United Kingdom, (4)Autism Research Centre, Department 11:51 304.004 Parents’ Application of Mediated Learning Principles As of Psychiatry, University of Cambridge, Cambridge, ON, United Predictors of Toddler Preverbal Social Communication Outcomes H. Kingdom, (5)University of Cambridge, Cambridge, United Kingdom, (6) Schertz1 and X. Liu2, (1)Indiana University, Bloomington, IN, (2)Indiana Cambridgeshire and Peterborough NHS Foundation Trust, Cambridge, University - Bloomington, Bloomington, IN United Kingdom, (7)Liaison Psychiatry, South West London St.George’s Mental Health NHS Trust, Carshalton, United Kingdom, (8)Department of Psychiatry, University of Cambridge, Cambridge, United Kingdom

11:27 303.002 Social and Non-Social Effects of Oxytocin: Enhancement of Approach Motivation Towards All Emotionally-Evocative Stimuli J. Prinsen1,2, A. Taillieu1, N. Daniels1,3, J. R. Soriano1 and K. Alaerts1,3, (1) Rehabilitation Sciences, KU Leuven, Leuven, Belgium, (2)Leuven Autism Research Consortium (LAuRes), KU Leuven, Leuven, Belgium, (3) Leuven Autism Research Consortium (LAuRes), Leuven, Belgium

32 • INSAR 2021 VIRTUAL ANNUAL MEETING • Tuesday May 4, 2021

Oral Session 11:27 306.002 Neural Mechanisms of Emotion Regulation in Children with 1 2 Other - Multiple Topic Areas ASD As Treatment Targets for Anxiety D. G. Sukhodolsky , C. Kalvin , R. Jordan3, S. Rowley3, K. Ibrahim1 and W. L. Tseng4, (1)Yale Child Oral 305 - ‘Getting it Right’ for Autistic Children, Youth and Study Center, Yale University School of Medicine, New Haven, CT, (2) Adults: Diagnostic, Transition & Mental Health Support Child Study Center, Yale University, New Haven, CT, (3)Yale Child Study Challenges Center, New Haven, CT, (4)Child Study Center, Yale School of Medicine, 11:15 AM - 12:10 PM New Haven, CT 11:39 306.003 Early Quantitative and Later Qualitative Neural Differences 11:15 305.001 When Are Clinicians Sure? Identifying Socio-Demographic during Face Processing in Autistic Individuals from Childhood to Predictors of Diagnostic Certainty to Inform Diagnosis Among Adulthood R. Haartsen1, L. Mason2, P. Garces3, A. Gui1, T. Charman4, Underserved Populations C. G. McDonnell, E. A. DeLucia, T. M. M. H. Johnson2, J. Tillmann5, J. K. Buitelaar6, E. Loth7, D. Murphy7, Andrzejewski, O. Semones and M. Fok, Department of Psychology, E. J. Jones2 and L. G. EU-AIMS8, (1)Centre for Brain and Cognitive Virginia Polytechnic Institute and State University, Blacksburg, VA Development, Birkbeck University of London, London, United Kingdom, (2)Centre for Brain and Cognitive Development, Birkbeck, University of 11:27 305.002 Building Better Bridges: Outcomes of a Community- London, London, United Kingdom, (3)Neuroscience, Ophthalmology, Partnered School Transition Intervention for Students with Autism H. and Rare Diseases (NORD) Roche Pharma Research and Early J. Nuske1, T. Smith2, L. Levato2, B. Bronstein1, A. R. Fitzgerald3, C. Development. Roche Innovation Center Basel, Hoffmann-La Roche, Garcia4, S. F. Vejnoska3, S. Hochheimer2, F. A. Castellon4, J. Chiappe5, Basel, Switzerland, (4)Department of Psychology, Institute of Psychiatry, N. Sparapani3, J. Li3, A. D. Nunnally3, W. I. Shih4, A. C. Stahmer3, S. Psychology and Neuroscience, King’s College London, London, United Iadarola2, D. S. Mandell1, E. McGhee Hassrick6, S. Kataoka4 and C. Kingdom, (5)Institute of Psychiatry, Psychology and Neuroscience, King’s Kasari4, (1)Penn Center for Mental Health, University of Pennsylvania, College London, London, United Kingdom, (6)Department of Cognitive Philadelphia, PA, (2)University of Rochester Medical Center, Rochester, Neuroscience, Donders Institute for Brain, Cognition and Behaviour, NY, (3)UC Davis MIND Institute, University of California, Davis, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, Sacramento, CA, (4)University of California, Los Angeles, Los Angeles, (7)Department of Forensic and Neurodevelopmental Sciences, Institute CA, (5)California State University, Dominguez Hills, Carson, CA, (6)A..J. of Psychiatry, Psychology and Neuroscience, King’s College London, Drexel Autism Institute, Drexel University, Philadelphia, PA London, United Kingdom, (8)EU-AIMS Organization, London, United 11:39 305.003 Why Are Autistic People More Likely to Experience Kingdom Suicidal Thoughts? Applying the Integrated Motivational-Volitional 11:51 306.004 Action Monitoring Deficits in Toddlers and Preschoolers Model in Autistic Adults. J. Graham1, J. Rodgers2 and S. A. Cassidy3, with Autism Spectrum Disorder M. A. Krol1,2, R. Debnath3, J. Leano1 (1)Newcastle University, Newcastle, United Kingdom, (2)Population and H. Tager-Flusberg4, (1)Psychological and Brain Sciences, Boston Health Sciences Institute, Newcastle University, Newcastle upon Tyne, University, Boston, MA, (2)Donders Institute, Radboudumc, Nijmegen, United Kingdom, (3)School of Psychology, University of Nottingham, Netherlands, (3)Leibniz Institute for Neurobiology, Magdeburg, Germany, Nottingham, United Kingdom (4)Department of Psychological and Brain Sciences, Boston University, 11:51 305.004 “Listen, I’ve Been Thriving” Vs. “This Is the Worst I’ve Ever Boston, MA Felt!”: An Exploratory Study of Autistic Experiences with In-Person and Online Social Interaction during the COVID-19 Pandemic R. E. Stanley, Marquette University, Milwaukee, WI

Oral Session Other - Multiple Topic Areas Oral 306 - fMRI and EEG Task-Induced Responses in Autism 11:15 AM - 12:10 PM

11:15 306.001 Changes in Amygdala Activity across the PEERS® Intervention: The Role of Fear of Negative Evaluation A. J. McVey1, J. D. Herrington2, A. Barrington3, A. Porcelli4, H. K. Schiltz5, A. D. Haendel6, B. Dolan7, A. Arias8, M. Carlson9, W. Krueger10, B. Yund11 and A. V. Van Hecke5, (1)University of British Columbia, Vancouver, BC, Canada, (2) Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, (3)Biomedical Engineering, Marquette University, Milwaukee, WI, (4) Unknown Affiliation, Milwaukee, WI, (5)Psychology, Marquette University, Milwaukee, WI, (6)Speech-Language Pathology, Concordia University Wisconsin, Mequon, WI, (7)Medical College of Wisconsin, Milwaukee, WI, (8)University of California,, Milwaukee, WI, (9)Education, Marquette University, Milwaukee, WI, (10)Speech Pathology and Audiology, Marquette University, Milwaukee, WI, (11)Psychology, University of Wisconsin Milwaukee, Milwaukee, WI

33 • INSAR 2021 VIRTUAL ANNUAL MEETING • Tuesday May 4, 2021

Oral Session 11:39 307.003 Dopaminergic Functioning in Autism Spectrum Disorder: 1,2 3 Other - Multiple Topic Areas An [18F]-Fdopa PET/CT Study R. Schalbroeck , F. H. P. van Velden , L. F. de Geus-Oei3,4, M. Yaqub5, A. Schrantee6, T. van Amelsvoort1, J. Oral 307 - Functional and Anatomical Neuroimaging Markers Booij6 and J. P. Selten1,2, (1)School for Mental Health and Neuroscience, of Autism I Maastricht University, Maastricht, Netherlands, (2)Psychosis Research 11:15 AM - 12:10 PM Group, Rivierduinen Institute for Mental Healthcare, Leiden, Netherlands, (3)Section of Nuclear Medicine, Department of Radiology, Leiden 11:15 307.001 An Integrated Analysis of Autism Associated Inter-Individual University Medical Center, Leiden, Netherlands, (4)Biomedical Imaging Variations of Gray and White Matter Morphology T. Mei1, A. Llera1, Group, University of Twente, Enschede, Netherlands, (5)Department of N. Forde2, D. Floris1, S. Durston3, C. Moessnang4, T. Banaschewski5, Radiology and Nuclear Medicine, Amsterdam University Medical Centers, R. Holt6, S. Baron-Cohen6, A. Rausch1, E. Loth7, F. dell’Acqua7, T. location VU Medical Center, Amsterdam, Netherlands, (6)Department Charman8, D. Murphy7, C. Ecker9, C. Beckmann1, J. K. Buitelaar1 and of Radiology and Nuclear Medicine, Amsterdam University Medical L. G. EU-AIMS10, (1)Department of Cognitive Neuroscience, Donders Centers, location Academic Medical Center, Amsterdam, Netherlands Institute for Brain, Cognition and Behaviour, Radboud University 11:51 307.004 Increased Glutamate + Glutamine Correlates with Autism Nijmegen Medical Centre, Nijmegen, Netherlands, (2)Department of Severity and Tactile Sensitivity in Children with Autism Spectrum Cognitive Neuroscience, Donders Institute for Brain, Cognition and Disorders J. L. He1, G. Oeltzschner2, M. Mikkelsen3, A. Deronda4, D. Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, ON, Crocetti5, S. H. Mostofsky6, R. A. Edden2 and N. A. Puts2, (1)Russell H. Netherlands, (3)Department of Psychiatry, Brain Center Rudolf Magnus, Morgan Department of Radiology and Radiological Science, The Johns University Medical Center Utrecht, Utrecht, Netherlands, (4)Department Hopkins University School of Medicine, The Johns Hopkins University of Psychiatry and Psychotherapy, Central Institute of Mental Health, School of Medicine, Baltimore, MD, (2)Russell H. Morgan Department University of Heidelberg, Mannheim, Germany, (5)Department of Child of Radiology and Radiological Science, The Johns Hopkins University and Adolescent Psychiatry, Central Institute of Mental Health, University School of Medicine, Baltimore, MD, (3)F.M. Kirby Research Center for of Heidelberg, Mannheim, Germany, (6)Autism Research Centre, Functional Brain Imaging, Kennedy Krieger Institute, Kennedy Krieger Department of Psychiatry, University of Cambridge, Cambridge, United Institute, Baltimore, MD, (4)Kennedy Krieger, Baltimore, MD, (5)Center Kingdom, (7)Department of Forensic and Neurodevelopmental Sciences, for Neurodevelopmental and Imaging Research, Kennedy Krieger Institute of Psychiatry, Psychology and Neuroscience, King’s College Institute, Baltimore, MD, (6)Center for Autism and Related Disorder, London, London, United Kingdom, (8)Department of Psychology, Institute Kennedy Krieger Institute, Baltimore, MD of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom, (9)Department of Child and Adolescent Psychiatry, University Hospital, Goethe University, Frankfurt am Main, Frankfurt, Germany, (10)EU-AIMS Organization, London, United Oral Session Kingdom Early Development (< 48 months) Oral 308 - Assessment & Social Development 11:27 307.002 Testing Candidate Cerebellar Presymptomatic Biomarkers for Autism Spectrum Disorder Z. Hawks1, A. Todorov2, T. Nishino2, M. 12:15 PM - 1:10 PM Talovic2, N. Marrus2, M. B. Nebel3, S. Davis2, S. Marek2, B. Seitzman4, A. Eggebrecht2, J. T. Elison5, S. R. Dager6, M. W. Mosconi7, L. Tychsen2, 12:15 308.001 Screening for ASD in Toddlers Born Premature: A. Snyder2, K. Botteron2, A. M. Estes8, A. C. Evans9, G. Gerig10, H. C. Psychometric Properties of the M-CHAT-R/F K. D. Kelly1, T. Hamner1, Hazlett11, R. C. McKinstry12, J. Pandey13, R. T. Schultz13, M. Styner14, J. G. Perez Liz1, S. E. Nanovic1, K. Feehan2, B. Garvin2, R. Turchi2, D. J. Wolff5, L. Zwaigenbaum15, J. Piven16 and J. R. Pruett17, (1)Department A. Fein3 and D. L. Robins1, (1)A.J. Drexel Autism Institute, Drexel of Psychological & Brain Sciences, Washington University, St. Louis, University, Philadelphia, PA, (2)St. Christopher’s Hospital for Children, MO, (2)Washington University School of Medicine, St. Louis, MO, (3) Philadelphia, PA, (3)Psychological Sciences, University of Connecticut, Center for Neurodevelopmental and Imaging Research, Kennedy Krieger Storrs, CT Institute, Baltimore, MD, (4)Washington University in St. Louis, St. Louis, MO, (5)University of Minnesota, Minneapolis, MN, (6)Radiology, 12:27 308.002 Testing the Accuracy and Clinical Value of Novel Tools for Tele-Assessment of ASD in Young Children L. Corona1, A. S. Weitlauf2, University of Washington, Seattle, WA, (7)Clinical Child Psychology 3 1 2 4 3 Program, Schiefelbusch Institute for Life Span Studies, University of J. F. Hine , A. F. Berman , A. Miceli , A. Nicholson , C. Stone , N. A. Broderick3, S. Francis5, P. Juárez6, A. Vehorn3, L. Wagner3 and Z. Kansas, Lawrence, KS, (8)Speech and Hearing Sciences, University 3 of Washington, Seattle, WA, (9)Montreal Neurological Institute, McGill Warren , (1)Vanderbilt University Medical Center - Treatment and University, Montreal, QC, Canada, (10)New York University, New York, Research Institute for Autism Spectrum Disorder, Nashville, TN, (2) NY, (11)*co-senior author, University of North Carolina, Chapel Hill, NC, Vanderbilt Kennedy Center, Vanderbilt University Medical Center, (12)Mallinckrodt Institute of Radiology, Washington University School Nashville, TN, (3)Vanderbilt University Medical Center, Nashville, TN, of Medicine, St. Louis, MO, (13)Center for Autism Research, Children’s (4)Vanderbilt University, Pleasant View, TN, (5)Vanderbilt University Hospital of Philadelphia, Philadelphia, PA, (14)Psychiatry and Computer Medical Center - Treatment and Research Institute for Autism Spectrum Science, University of North Carolina, Chapel Hill, NC, (15)University Disorder, Nashville, NY, (6)Vanderbilt University Medical Center- of Alberta, Edmonton, AB, Canada, (16)*Co-senior author, University of Treatment and Research Institute for Autism Spectrum Disorder, North Carolina, Chapel Hill, NC, (17)*Co-senior author, **For the IBIS Nashville, TN Network, Washington University School of Medicine, St. Louis, MO

34 • INSAR 2021 VIRTUAL ANNUAL MEETING • Tuesday May 4, 2021

12:39 308.003 Infants with Later ASD Have Less Night Sleep, and This 12:27 309.002 Optimal Interpregnancy Interval in Autism Spectrum Relates to Emerging Developmental Differences in Social Attention J. Disorder: A Multi-National Retrospective Cohort Study of a Modifiable Begum Ali1, L. Gosse2, G. Pasco3, T. Charman4, M. H. Johnson1 and Risk Factor D. Schendel1,2, G. Pereira3, M. Gissler4, S. Hansen5, A. E. J. Jones1, (1)Centre for Brain and Cognitive Development, Birkbeck, Kodesh6, H. Leonard7, S. Levine8, V. Mitter9, E. Parner10, A. K. Regan11, University of London, London, United Kingdom, (2)Centre for Brain and A. Reichenberg12, S. Sandin13, A. Suominen14 and R. Francis15, (1) Cognitive Development, Birkbeck University of London, London, United Aarhus University, Aarhus, Denmark, (2)AJ Drexel Autism Institute, Kingdom, (3)Institute of Psychiatry, Psychology and Neuroscience, Drexel University, Philadelphia, PA, (3)School of Public Health, Curtin King’s College London, London, United Kingdom, (4)Department of University, Perth, WA, Australia, (4)National Institute for Health and Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s Welfare, Helsinki, Finland, (5)Aarhus University, Aarhus C, Denmark, College London, London, United Kingdom (6)Department of Community Mental Health, University of Haifa, Haifa, Israel, (7)Disability, Telethon Kids Institute, West Perth, Western 12:51 308.004 Quantifying Latent Social Motivation and Its Developmental Australia, Australia, (8)University of Haifa, Haifa, Israel, (9)Centre Associations with Joint Attention and Language in Infants at High and for Fertility and Health (CeFH), Norwegian Institute of Public Health, 1 Low Risk for Autism Spectrum Disorder (ASD) I. C. Stallworthy , N. Oslo, Norway, (10)University of Aarhus, DK-8000 Århus C, Denmark, 2 3 2 4 2 5 Marrus , D. Berry , S. Davis , J. J. Wolff , K. Botteron , S. R. Dager , A. (11)School of Nursing and Health Professions, University of San 6 7 8 9 10 M. Estes , H. C. Hazlett , L. Zwaigenbaum , R. T. Schultz , J. Piven , Francisco, San Francisco, CA, (12)Seaver Autism Center, Department 4 11 J. T. Elison and J. R. Pruett , (1)Institute of Child Development, of Psychiatry, Icahn School of Medicine at Mount Sinai Hospital, New University of Minnesota, Minneapolis, MN, (2)Washington University York, NY, (13)Department of Psychiatry, Icahn School of Medicine at School of Medicine, St. Louis, MO, (3)Institute of Child Development, Mount Sinai, New York, NY, (14)University of Turku, Turku, Finland, (15) University of Minnesota, Twin Cities, Minneapolis, MN, (4)University of Telethon Insitute for Child Health Research, Subiaco, Australia Minnesota, Minneapolis, MN, (5)Radiology, University of Washington, Seattle, WA, (6)Speech and Hearing Sciences, University of Washington, 12:39 309.003 Establishing Developmental Milestone Norms in 20,000 Seattle, WA, (7)*co-senior author, University of North Carolina, Chapel Individuals with Autism Spectrum Disorder: Associations with Skill Hill, NC, (8)University of Alberta, Edmonton, AB, Canada, (9)Center for Regression and Early Diagnosis S. S. Kuo1,2, C. van der Merwe3, Autism Research, Children’s Hospital of Philadelphia, Philadelphia, PA, C. E. Carey3, S. Bishop4 and E. B. Robinson5, (1)Stanley Center for (10)*Co-senior author, University of North Carolina, Chapel Hill, NC, Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, (11)*Co-senior author, **For the IBIS Network, Washington University MA, (2)Analytic and Translational Genetics Unit, Massachusetts General School of Medicine, St. Louis, MO Hospital, Boston, MA, (3)Broad Institute of MIT and Harvard, Cambridge, MA, (4)University of California San Francisco, San Francisco, CA, (5) Department of Epidemiology, Harvard School of Public Health, Boston, Oral Session MA Epidemiology/Population Studies 12:51 309.004 Predictors of Autism Diagnosis Age in a Community Sample Oral 309 - Early Determinants of Autism Risk of Australian Adults Y. Huang1,2, S. Arnold1,2, K. R. Foley3,4 and J. N. 12:15 PM - 1:10 PM Trollor1,2, (1)Department of Developmental Disability Neuropsychiatry, UNSW, Sydney, NSW, Australia, (2)Cooperative Research Centre 12:15 309.001 Prenatal Exposure to Air Pollution and Children’s Autism for Living with Autism (Autism CRC), Brisbane, QLD, Australia, (3) Spectrum Disorder: Identifying Sensitive Windows and Sex Differences Department of Developmental Disability Neuropsychiatry, The University M. M. Rahman1, Y. H. Shu2, T. Chow2, F. W. Lurmann3, M. P. Martinez2, of New South Wales, UNSW Sydney, NSW, Australia, (4)Southern Cross S. P. Eckel1, J. C. Chen1, Z. Chen1, J. Schwartz4,5, R. McConnell1 and University, Bilinga, QLD, Australia A. H. Xiang2, (1)Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, (2) Department of Research & Evaluation, Kaiser Permanente Southern California, Pasadena, CA, (3)Sonoma Technology, Inc., Petaluma, CA, (4)Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, (5)Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA

35 • INSAR 2021 VIRTUAL ANNUAL MEETING • Tuesday May 4, 2021

Oral Session Oral Session Epigenetics Family Issues and Stakeholder Experiences Oral 310 - An Update on Autism Genetics and Gene- Oral 311 - Qualitative Understandings of Autistic Individuals, Environment Interactions Their Families and Communities 12:15 PM - 1:10 PM 12:15 PM - 1:10 PM

12:15 310.001 New Insights into the Genomic Architecture Underlying 12:15 311.001 Sibling and Service Provider Perspectives on Sibling Autism Spectrum Disorder from a Comprehensive Analysis of over Involvement in the Lives of Adults on the Autism Spectrum E. K. 20,000 Whole-Genome Sequences B. Trost1, B. Thiruvahindrapuram1, Schmidt1, M. Gordillo2, M. Getz3, G. I. Orsmond1 and K. Long2, (1) M. Zarrei1, E. J. Higginbotham1, J. Howe1, W. Engchuan1, D. Roshandel1, Department of Occupational Therapy, Boston University, Boston, MA, A. Chan1, M. Reuter1, L. Loureiro1, L. D’Abate1, J. Whitney1, R. V. Patel1, (2)Boston University, Boston, MA, (3)Division of Gastroenterology, T. Nalpathamkalam1, G. Pellecchia1, J. Wei1, O. Hamdan1, Z. Wang1, Hepatology, and Nutrition, Boston Children’s Hospital, Boston, MA S. Lamoureux1, B. Kellam1, M. Bookman2, J. Fuerth3, J. Noppornpitak3, H. Ward3, P. Magee3, M. Fiume3, V. Seifer4, M. Quirbach4, R. K. Yuen1, 12:27 311.002 Exploring Leisure Time Use and Impact on Health and 1 J. Sebat5, L. J. Strug1, A. D. Paterson6, N. Hoang1, O. Rennie1, D. G. Well-Being Among Transition-Age Autistic Youth S. C. Folta , L. G. 2 3 4 2 5 Amaral7, M. S. Lewis8, M. Elsabbagh9, B. Fernandez10, I. M. Smith11, L. Bandini , A. Must , J. Pelletier , K. Ryan and C. Curtin , (1)Tufts Zwaigenbaum12, E. Anagnostou13, J. Vorstman1, N. Sondheimer1, T. W. University, Boston, MA, (2)Eunice Kennedy Shriver Center, University Frazier14, D. Glazer2, D. Hartley4 and S. W. Scherer1, (1)The Hospital of Massachusetts Medical School, Worcester, MA, (3)Tufts University for Sick Children, Toronto, ON, Canada, (2)Verily Life Sciences, San School of Medicine, Boston, MA, (4)Boston University, Boston, MA, (5) Francisco, CA, (3)DNAstack, Toronto, ON, Canada, (4)Autism Speaks, University of Massachusetts Medical School, Waltham, MA New York, NY, (5)University of California - San Diego, La Jolla, CA, 12:39 311.003 Me, My Environment and My Quality of Life: Understanding (6)University of Toronto, Toronto, ON, Canada, (7)Department of Autistic Quality of Life Using Photography R. L. Kuzminski1, M. Psychiatry and Behavioral Sciences, The Medical Investigation of Falkmer2, S. Phillips3, W. Lawson4, S. Bolte5, S. J. Girdler6 and B. T. Neurodevelopmental Disorders (MIND) Institute, UC Davis School of Milbourn6, (1)School of Occupational Therapy, Social Work and Speech Medicine, University of California Davis, Sacramento, CA, (8)Medical Pathology, Cooperative Research Centre for Living with Autism, Long Genetics, University of British Columbia, Vancouver, BC, Canada, (9) Pocket, QLD, Australia, (2)Curtin University, Bentley, Australia, (3) Neurology and Neurosurgery, McGill University, Montreal, QC, Canada, Curtin University, Perth, Australia, (4)Cooperative Research Centre for (10)Memorial University of Newfoundland and Eastern Health, St. John’s, Living with Autism (Autism CRC), Brisbane, QLD, Australia, (5)Center of NF, Canada, (11)Dalhousie University / IWK Health Centre, Halifax, NS, Neurodevelopmental Disorders (KIND), Centre for Psychiatry Research; CANADA, (12)University of Alberta, Edmonton, AB, Canada, (13)Autism Department of Women’s and Children’s Health, Karolinska Institutet, Research Center, Bloorview Research Institute, Holland Bloorview Kids & Stockholm Health Care Services, Region Stockholm, Stockholm, Rehabilitation Hospital, Toronto, ON, Canada, (14)Psychology, John Sweden, (6)School of Occupational Therapy, Social Work and Speech Carrol University, Cleveland, OH Pathology, Curtin University, Perth, WA, Australia 12:27 310.002 Development and Implementation of a Framework for an 12:51 311.004 A Qualitative Study of Police Confidence in Their Work with Evidence-Based Gene List Relevant to Autism Spectrum Disorder Autistic Individuals A. M. Love1 and K. Railey2, (1)Aspect Research O. Rennie1, C. Schaaf2, N. Hoang1, J. Howe1, S. W. Scherer1 and J. Centre for Autism Practice, Autism Spectrum Australia, Melbourne, VIC, Vorstman1, (1)The Hospital for Sick Children, Toronto, ON, Canada, (2) Australia, (2)School of Medicine, Emory University, Atlanta, GA Baylor College of Medicine, Houston, TX

12:39 310.003 Genetic Risk on the Association of Maternal Smoking and Drinking in Pregnancy with Autism Spectrum Disorder J. Daniels1, K. S. Benke2, E. M. Howerton3, H. Farzadegan3, H. E. Volk1, M. D. Fallin4 and C. Ladd-Acosta1, (1)Wendy Klag Center for Autism and Developmental Disabilities, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, (2)Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, (3)Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, (4)Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD

12:51 310.004 Diversity in Gender Identity and Its Link to Neurocognitive Polygenic Propensity Scores in the SPARK Autism Cohort T. R. Thomas1, A. Song2, J. F. Strang2 and J. Michaelson3, (1)University of Iowa, Iowa City, IA, (2)Center for Autism Spectrum Disorders, Children’s National Hospital, Washington, DC, (3)Division of Computational and Molecular Psychiatry, Iowa City, IA

36 • INSAR 2021 VIRTUAL ANNUAL MEETING • Tuesday May 4, 2021

Oral Session Oral Session Other - Multiple Topic Areas Other - Multiple Topic Areas Oral 312 - Measure Development Oral 313 - Trajectories in Autism - Impacts and Prediction 12:15 PM - 1:10 PM 12:15 PM - 1:10 PM

12:15 312.001 Computational Behavioral Phenotyping of Autism Spectrum 12:15 313.001 Predictors of Regression and Its Impact on Subsequent Disorder Using Scalable Computer Vision Tools J. M. Di Martino1, Communication Development in Children with Autism A. Pickles1, N. J. Z. Chang1, S. Perochon1, P. R. Krishnappa Babu1, R. E. Aiello2, K. L. Wright2, R. Bedford3, M. Steiman4, E. Duku5, P. Mirenda6, T. Bennett7, S. Carpenter2, S. N. Compton3, N. O. Davis4, S. Espinosa1, J. Flowers2, Georgiades8, I. M. Smith9, C. M. Kerns6, W. J. Ungar10, T. Vaillancourt11, A. Harris5, J. Howard2, S. H. Kollins4, E. M. Perrin6, M. Spanos2, G. C. Waddell12, A. Zaidman-Zait13, L. Zwaigenbaum14, P. Szatmari15 and Sapiro1 and G. Dawson2, (1)Department of Electrical and Computer M. Elsabbagh16, (1)King’s College London, Institute of Psychiatry, Engineering, Duke University, Durham, NC, (2)Department of Psychology and Neuroscience, London, United Kingdom, (2)Biostatistics Psychiatry and Behavioral Sciences, Duke Center for Autism and Brain & Health Informatics, Kings College London, London, United Kingdom, Development, Durham, NC, (3)Psychiatry and Behavioral Sciences, (3)Kings College London, London, United Kingdom, (4)Azrieli Center Child/Family Mental Health and Developmental Neuroscience, Duke for Autism Research, Montreal Neurological Institute-Hospital, Montreal, University Medical Center, Durham, NC, (4)Department of Psychiatry QC, Canada, (5)Offord Centre for Child Studies, McMaster University, and Behavioral Sciences, Duke ADHD Program, Duke University Medical Hamilton, ON, Canada, (6)University of British Columbia, Vancouver, Center, Durham, NC, (5)Boston University, Durham, NC, (6)Department BC, Canada, (7)Offord Centre for Child Studies, McMaster University, of Pediatrics, Duke University School of Medicine, Durham, NC Hamilton, ON, CANADA, (8)McMaster Autism Research Team, McMaster University, Hamilton, ON, Canada, (9)Dalhousie University 12:27 312.002 Initial Psychometrics of an Early Childhood Social Motivation / IWK Health Centre, Halifax, NS, CANADA, (10)The Hospital for Sick 1 Questionnaire and Differentiation of Children with ASD S. Davis , D. Children Research Institute, Toronto, ON, Canada, (11)University of 2 2 2 2 1 Abrams , P. Mei , G. Dent , A. Rocca and N. Marrus , (1)Washington Ottawa, Ottawa, ON, Canada, (12)Simon Fraser University, Vancouver, University School of Medicine, St. Louis, MO, (2)Washington University BC, Canada, (13)Tel-Aviv University, Tel-Aviv, Israel, (14)University of in St. Louis, St. Louis, MO Alberta, Edmonton, AB, Canada, (15)The Hospital for Sick Children, Toronto, ON, Canada, (16)Neurology and Neurosurgery, McGill 12:39 312.003 Development and Standardization of the Brief Observation University, Montreal, QC, Canada of Symptoms of Autism (BOSA) in Response to COVID-19 D. Dow1, 2 2 3 2 A. Holbrook , C. K. Toolan , S. H. Kim and C. Lord , (1)UCLA Semel 12:27 313.002 Comparison of Trajectories of Emotional and Behavioural Institute for Neuroscience & Human Behavior, Los Angeles, CA, (2) Problems from Age 2-10 Years in an Autistic and a Typically Developing University of California, Los Angeles, Los Angeles, CA, (3)Psychiatry, Cohort N. J. Wright1, V. Courchesne2,3, R. Bedford4, A. Pickles5, T. Center for Autism and the Developing Brain, White Plains, NY Bennett6, E. Duku7, S. Georgiades8, C. M. Kerns9, P. Mirenda9, I. M. Smith10, J. Scorah11, P. Szatmari12, W. J. Ungar13, T. Vaillancourt14, A. 12:51 312.004 Structural Validation of the Autism-Spectrum Quotient Zaidman-Zait15, L. Zwaigenbaum16 and M. Elsabbagh17, (1)Biostatistics & Short Form (AQ-Short) in Children with an Autism Spectrum Disorder: Health Informatics, Kings College London, London, United Kingdom, (2) A Comparison between China and the Netherlands F. Liu1, A. M. Department of Neurology and Neurosurgery, McGill University, Montréal, Scheeren2, R. A. Hoekstra3, R. Grove4, C. Wang5 and S. Begeer2, (1) QC, Canada, (3)Autism Research Group, CIUSSS du Nord-de-l ’Île-de- Horstenberg, Vrije University Amsterdam, Amsterdam, Netherlands, Montréal, Montréal, QC, Canada, (4)Kings College London, London, (2)Vrije Universiteit, Amsterdam, Netherlands, (3)Department of United Kingdom, (5)King’s College London, Institute of Psychiatry, Psychology, King’s College London, London, United Kingdom, (4) Psychology and Neuroscience, London, United Kingdom, (6)Offord University of Technology Sydney, Sydney, NSW, Australia, (5)NanKai Centre for Child Studies, McMaster University, Hamilton, ON, CANADA, University, TianJin, China (7)Offord Centre for Child Studies, McMaster University, Hamilton, ON, Canada, (8)McMaster Autism Research Team, McMaster University, Hamilton, ON, Canada, (9)University of British Columbia, Vancouver, BC, Canada, (10)Dalhousie University / IWK Health Centre, Halifax, NS, CANADA, (11)McGill University, Montreal, QC, Canada, (12)The Hospital for Sick Children, Toronto, ON, Canada, (13)The Hospital for Sick Children Research Institute, Toronto, ON, Canada, (14)University of Ottawa, Ottawa, ON, Canada, (15)Tel-Aviv University, Tel-Aviv, Israel, (16)University of Alberta, Edmonton, AB, Canada, (17)Neurology and Neurosurgery, McGill University, Montreal, QC, Canada

37 • INSAR 2021 VIRTUAL ANNUAL MEETING • Tuesday May 4, 2021

12:39 313.003 Distinct IQ Trajectories in Youth with ASD: A Latent Class Panel Session 1 2 3 4 Growth Analysis A. C. Cho , A. M. Iosif , N. Dalloul , D. G. Amaral , Adult Outcome: Medical, Cognitive, Behavioral, Social, Adaptive, C. W. Nordahl4, E. Ferrer5 and M. Solomon4, (1)Human Development & Psychology, University of California, Los Angeles, Los Angeles, Vocational CA, (2)Public Health Sciences, University of California Davis, Davis, Panel 201 - Barriers and Facilitators of Child, Teacher and CA, (3)Psychiatry and Behavioral Sciences, UC Davis MIND Institute, System-Level Intervention Outcomes Sacramento, CA, (4)Department of Psychiatry and Behavioral Sciences, 1:45 PM - 3:45 PM The Medical Investigation of Neurodevelopmental Disorders (MIND) Institute, UC Davis School of Medicine, University of California Davis, Sacramento, CA, (5)UC Davis, Davis, CA Panel Chair: R. Landa, Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, MD 12:51 313.004 Influence of Siblings on Adaptive Behavior Trajectories in 1 2 1 Autism Spectrum Disorder N. E. Rosen , J. B. McCauley and C. Lord , Discussant: B. A. Boyd, Juniper Gardens Children’s Project, University of (1)University of California, Los Angeles, Los Angeles, CA, (2)Saint Kansas, Kansas City, KS Mary’s College of California, Moraga, CA Community-based providers are the primary early intervention source for children with autism spectrum disorder (ASD). However, multi-level barriers threaten effec- Oral Session tive intervention delivery and children’s outcomes. This panel’s goal is to examine Service Delivery/Systems of Care such barriers and multi-level risk and protective factors related to high fidelity EBP implementation and child treatment response. Results of four studies involving Oral 314 - Measuring and Maximizing Access to Services community providers’ implementation of evidence-based intervention practices will 12:15 PM - 1:10 PM be presented. Panelist 1 will focus at the child level, examining impact of pheno- typic features on treatment response of preschoolers with ASD in a school-based 12:15 314.001 Service Experiences of Autistic People and Family Carers in randomized controlled trial. Panelist 2 will focus at the teacher level, examining factors that support and constrain resiliency in teachers of preschoolers with ASD, Europe: Access-EU Study J. Man1, R. Holt1, T. Parsons2, A. N. Ruigrok3, 1 4 5 1 and how these factors relate to fidelity of Naturalistic Developmental Behavioral C. Allison , A. Baranger , J. Cusack and S. Baron-Cohen , (1)Autism Intervention (NDBI) implementation. Panelist 3 will focus at the consultant level, Research Centre, Department of Psychiatry, University of Cambridge, examining how the qualities of consultants who support parent-teacher dyads in Cambridge, United Kingdom, (2)Autism Research Centre, University of use of best practices affect children’s IEP goal attainment. Panelist 4 will focus at Cambridge, Cambridge, United Kingdom, (3)University of Cambridge, the system level, examining relationships between climate, training, and fidelity Cambridge, United Kingdom, (4)Autism Europe, Brussels, Belgium, (5) outcomes. The Discussant will consider the implication of results for the design of Autistica, London, United Kingdom of Great Britain and Northern Ireland intervention ingredients, professional development approaches, and organizational systems to promote resiliency at all levels to optimize child outcomes. 12:27 314.002 Changes in Equitable Access to Autism Services in Utah after Transitioning to Telehealth during the COVID-19 Pandemic: 1:45 201.001 Risk and Protective Factors Related to Teachers’ High 1 2 Identifying Socio-Demographic Gaps M. E. Villalobos1, P. Carbone2 Fidelity Intervention Implementation R. Landa and A. M. Englestad , and A. L. Stuart3, (1)Pediatrics, University of Utah, Park City, UT, (2) (1)Center for Autism and Related Disorders, Kennedy Krieger Institute, University of Utah, Salt Lake City, UT, (3)General Pediatrics, University Baltimore, MD, (2)School of Education, Harvard University, Cambridge, of Utah, Salt Lake City, UT MA

12:39 314.003 Autistic Adults’ Experiences with Palliative Care and 2:05 201.002 Which Children Are Responding and Why? a Novel Method End-of-Life Services J. Lowe1, B. Rumbold2 and C. Dissanayake3, (1) to Understand Subtypes of Treatment Responders and Non-Responders 1 2 Public Health Palliative Care Unit and Olga Tennison Autism Research A. Wallisch and B. A. Boyd , (1)University of Kansas, Kansas City, KS, Centre, La Trobe University, Melbourne, VIC, Australia, (2)Public Health (2)Juniper Gardens Children’s Project, University of Kansas, Kansas Palliative Care Unit, La Trobe University, Melbourne, VIC, Australia, (3) City, KS Olga Tennison Autism Research Centre, La Trobe University, Melbourne, 2:25 201.003 School-Based Consultant Predictors of IEP Outcomes and VIC, Australia Implementation Fidelity with Compass L. A. Ruble1, L. N. Ogle1 and 2 12:51 314.004 Identifying Components of Autism Friendly Healthcare: A J. H. McGrew , (1)Special Education, Ball State University, Muncie, Modified Delphi Study B. O’Hagan1, S. King1, A. Friedman1, L. Bartolotti1, IN, (2)Psychology, Indiana University - Purdue University Indianapolis, O. Abubakare2, S. broder-Fingert2 and M. Augustyn1, (1)Developmental Indianapolis, IN and Behavioral Pediatrics, Boston Medical Center, Boston, MA, (2) 2:45 201.004 A Mixed Methods Evaluation of Implementation Climate Boston Medical Center, Boston, MA and Leadership within Education Programs for Students with ASD J. Suhrheinrich1, M. Melgarejo1, A. S. Nahmias2, P. Schetter3 and A. C. Stahmer4, (1)San Diego State University, San Diego, CA, (2)Psychiatry and Behavioral Sciences, University of California at Davis MIND Institute, Sacramento, CA, (3)UC Davis, Sacramento, CA, (4)Psychiatry and Behavioral Sciences, UC Davis MIND Institute, Sacramento, CA

38 • INSAR 2021 VIRTUAL ANNUAL MEETING • Tuesday May 4, 2021

Panel Session Panel Session Cognition: Attention, Learning, Memory Diagnostic, Behavioral, Sensory and Intellectual Screening and Panel 202 - Tracking Outside the Box: Moving Beyond Traditional Assessment Areas of Interest in ASD Eye Tracking Research Panel 203 - Autism in Children with Hearing or Visual Impairment: 1:45 PM - 3:45 PM Early Risk Signs, Atypical Profiles and Modified Diagnostic Assessment Approaches Panel Chair: E. Tenenbaum, Duke Center for Autism and Brain 1:45 PM - 3:45 PM Development, Durham, NC Panel Chair: N. J. Dale, Neurodisability Service, Great Ormond Street Discussant: F. Shic, Center for Child Health, Behavior and Development, Hospital NHS Foundation Trust, London, United Kingdom, Clinical Seattle Children’s Research Institute, Seattle, WA Neurosciences, UCL Great Ormond Street Institute of Child Health, Over the last two decades, eye tracking has become one of the most widely used London, United Kingdom tools for behavioral research in autism. Many important discoveries have been forged in this paradigm by selecting areas of interest (AOIs) within a scene and Discussant: C. Shulman, The School of Social Work, The Hebrew calculating the proportion of time an individual focuses their attention on that area. University of Jerusalem, Jerusalem, Israel While this approach has been fruitful, it has also glossed over and left unstudied vast amounts of potentially rich data regarding attention allocation in autism. In Children with severe hearing or visual impairment are at additional risk of social this panel, we will discuss four ways to move beyond traditional AOIs to deepen communicative difficulties and autism spectrum disorder; meta-analysis shows our understanding of the importance of eye movements and attention in autism a thirty one times higher risk in children with visual impairment compared to the research. Our first speaker will address aspects of eye tracking that are rarely typically sighted population. For clinical preventative and interventionist reasons explored intentionally in research but provide their own windows into phenotypic and for greater scientific understanding of the early risks and atypical profiles and heterogeneity in ASD. The second speaker focuses on the importance of time- potential aetiologies, robust validated measures are required for assessing and course data in eye tracking. Our third speaker introduces a novel method for diagnosing autism spectrum disorder in the context of hearing or visual impair- constructing AOIs for use with photographs, videos, and in wearable eye-tracking ment. This has raised high clinical and scientific challenges as existing validated research. Our final speaker turns to virtual reality and semantic models to push the instruments are dependent on functional auditory or visual abilities. To address boundaries of what eye tracking can tell us about how individuals with and without this important clinical and scientific need, three paediatric centres, who have autism attend to complex information in real-world environments. been leading in clinical experience and research in this area, bring together new research methodologies, insights and modified diagnostic assessment approaches 1:45 202.001 Relating Eye-Tracking Data Quality, Data Quantity, and to underpin the clinical practice and scientific research of the future with these 1 2 3 Phenotypic Heterogeneity in ASD A. Naples , A. R. Levin , G. Dawson , populations. The topics covered are comparison of social communicative skills R. A. Bernier4, S. Jeste5, C. A. Nelson6, K. Chawarska1, C. Sugar5, of young children with vision impairments and those with typical sight and autism M. Murias7, H. Seow8, S. J. Webb4, S. Faja9, D. Senturk10, J. Dziura8, spectrum disorder, modified assessment methods for diagnosing autism in children J. McPartland1 and F. Shic11, (1)Child Study Center, Yale University with hearing impairment and vision impairment and early social communicative School of Medicine, New Haven, CT, (2)Neurology, Boston Children’s risks predicting diagnostic profiles of autism in children with vision impairment. Hospital, Boston, MA, (3)Department of Psychiatry and Behavioral 1:45 203.001 A Comparison of Social Skills of Children with Vision Sciences, Duke Center for Autism and Brain Development, Durham, Impairments and Those with Autism Spectrum Disorders Z. Nir, The NC, (4)Psychiatry and Behavioral Sciences, University of Washington, School of Social Work, The Hebrew University of Jerusalem, Jerusalem, Seattle, WA, (5)University of California, Los Angeles, Los Angeles, Israel CA, (6)Developmental Medicine, Boston Children’s Hospital, Boston, MA, (7)Duke Center for Autism and Brain Development, Department of 2:05 203.002 Modified Assessment Methods for Diagnosing Autism Psychiatry and Behavioral Sciences, Duke University, Durham, NC, (8) Spectrum Disorder in Children with Severe Hearing Impairment B. Yale University, New Haven, CT, (9)Boston Children’s Hospital, Boston, Wright, Child Oriented Mental health Intervention Centre, University of MA, (10)UCLA, Los Angeles, CA, (11)Center for Child Health, Behavior York, York, United Kingdom and Development, Seattle Children’s Research Institute, Seattle, WA 2:25 203.003 Modified Assessment Methods for Diagnosing Autism 2:05 202.002 Distance from Typical Scan Path When Viewing Complex Spectrum Disorder in Young Children with Severe Visual Impairment Stimuli in Children with Autism Spectrum Disorder and Its Association N. J. Dale, Neurodisability Service, Great Ormond Street Hospital NHS 1 2 3 1 with Behavior E. Tenenbaum , S. Major , K. L. Carpenter , J. Howard , Foundation Trust, London, United Kingdom M. Murias2 and G. Dawson3, (1)Duke Center for Autism and Brain Development, Durham, NC, (2)Duke Center for Autism and Brain 2:45 203.004 Early Social Communicative Risks Predicting Diagnostic Development, Department of Psychiatry and Behavioral Sciences, Duke Thresholds of Autism in Children with Congenital Visual Impairment E. University, Durham, NC, (3)Department of Psychiatry and Behavioral Sakkalou, UCL Great Ormond Street Institute of Child Health, London, Sciences, Duke Center for Autism and Brain Development, Durham, NC United Kingdom

2:25 202.003 Automated and Flexible Area-of-Interest Construction for Eye-Tracking Research: With Applications to Autism Research R. S. Hessels and I. Hooge, Utrecht University, Utrecht, Netherlands

2:45 202.004 Measuring Naturalistic Attention in Complex, Real-World Environments in Autism A. J. Haskins1, T. L. Botch1, B. D. Garcia1, J. L. McLaren2 and C. Robertson3, (1)Dartmouth College, Hanover, NH, (2) Geisel School of Medicine, Dartmouth, Lebanon, NH, (3)Psychological and Brain Sciences, Dartmouth College, Hanover, NH 39 • INSAR 2021 VIRTUAL ANNUAL MEETING • Tuesday May 4, 2021

Panel Session 2:05 205.002 Cross-Disorder Dosage Sensitivity Mapping in the Human 1 2 1 Epidemiology/Population Studies Genome R. L. Collins , H. Brand and M. E. Talkowski , (1)Division of Medical Sciences, Harvard Medical School, Boston, MA, (2)Program in Panel 204 - Insights into Autism from Longitudinal Studies Medical and Population Genetics, Broad Institute of MIT and Harvard, Spanning Infancy to Adulthood Cambridge, MA 1:45 PM - 3:45 PM 2:25 205.003 Genetics and ASD Heterogeneity E. B. Robinson1, C. E. Carey2, S. S. Kuo3, J. Taylor4, C. van der Merwe2 and D. Weiner5, (1) Panel Chair: J. B. Girault, Carolina Institute for Developmental Disabili- Program in Medical and Population Genetics, Broad Institute of MIT and ties, University of North Carolina, Chapel Hill, NC Harvard, Cambridge, MA, (2)Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA, (3)Stanley Center for Discussant: A. Halladay, Autism Science Foundation, New York, NY Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, (4)Psychiatry, Brigham and Women’s Hospital, Boston, MA, (5) Longitudinal studies have revealed that changes over time in symptomology, Harvard Medical School, Boston, MA behavior, and neurobiology represent a fundamental aspect of autism spectrum disorder (ASD). In this panel, we discuss findings from four longitudinal studies 2:45 205.004 Large-Scale Gene Discovery in Autism and Comparison spanning infancy through adulthood that highlight the dynamic nature of ASD and to Schizophrenia and Developmental Delay F. K. Satterstrom1,2,3,4, J. emphasize the importance of longitudinal research in clarifying our understanding Fu3,4, H. Brand3,4, S. Dong5, S. De Rubeis6,7, X. Zhao3,4, R. L. Collins3,4,8, of etiology and the natural history of ASD. Presenters discuss key early predictors C. E. Carey1,2,3,4, C. van der Merwe1,2,4, C. Stevens2,4, C. Cusick2,4, of later outcomes, transition points in trajectories, and the individual, family, and D. E. Dickel9, L. A. Pennacchio9, L. Klei10, A. D. Borglum11,12,13, E. B. contextual factors that contribute to intra- and inter-individual variability in ASD. Robinson1,2,3,4,14, D. J. Cutler15, J. D. Buxbaum6,7,16,17, M. J. Daly1,2,3,4,18, 19 10 5 2,3,8,20 1:45 204.001 The Infant Brain Imaging Study: Exploring the Role of Family K. Roeder , B. Devlin , S. J. Sanders and M. E. Talkowski , (1) Traits J. B. Girault, Carolina Institute for Developmental Disabilities, Analytic and Translational Genetics Unit, Massachusetts General University of North Carolina, Chapel Hill, NC Hospital, Boston, MA, (2)Stanley Center for Psychiatric Research, Broad Institute of MIT and Harvard, Cambridge, MA, (3)Center for 2:05 204.002 The Canadian Pathways Study P. Szatmari, The Hospital Genomic Medicine, Massachusetts General Hospital, Boston, MA, (4) for Sick Children, Toronto, ON, Canada Program in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, (5)Department of Psychiatry, Weill 2:25 204.003 The Early Diagnosis Longitudinal Study C. Lord, University Institute for Neuroscience, UCSF School of Medicine, San Francisco, of California, Los Angeles, Los Angeles, CA CA, (6)The Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, New York, NY, (7)Department of 2:45 204.004 The Special Needs and Autism Project Cohort E. Simonoff, Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, King’s College London, Institute of Psychiatry, Psychology and (8)Division of Medical Sciences, Harvard Medical School, Boston, MA, Neuroscience, London, United Kingdom (9)Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Lab, Berkeley, CA, (10)Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, (11)iSEQ, Panel Session Center for Integrative Sequencing, Aarhus University, Aarhus, Denmark, Molecular Genetics (12)The Lundbeck Foundation Initiative for Integrative Psychiatric Panel 205 - ASD Genetics: New Data and New Insights Research, iPSYCH, Aarhus, Denmark, (13)Department of Biomedicine- 1:45 PM - 3:45 PM Human Genetics, Aarhus University, Aarhus, Denmark, (14)Department of Epidemiology, Harvard School of Public Health, Boston, MA, (15) Department of Human Genetics, Emory University School of Medicine, Panel Chair: E. B. Robinson, Program in Medical and Population Genet- Atlanta, GA, (16)Department of Neuroscience, Icahn School of Medicine ics, Broad Institute of MIT and Harvard, Cambridge, MA at Mount Sinai, New York, NY, (17)Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, (18)Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Panel Co-Chair: J. D. Buxbaum, Department of Psychiatry, Icahn School Finland, (19)Department of Statistics and Data Science, Carnegie Mellon of Medicine at Mount Sinai, New York, NY University, Pittsburgh, PA, (20)Department of Neurology, Massachusetts General Hospital, Boston, MA ASD genetics data sets have grown substantially over the last year, further clar- ifying the disorder’s genetic architecture. In this session, panelists will describe recent work of the Autism Sequencing Consortium, introducing new ASD-associ- ated genes and comparing ASD’s genetic basis to that of schizophrenia and intel- lectual disability. Panelists will also introduce new work characterizing ASD risk subsequent to structural and noncoding variation. Lastly, the panel will consider the heterogeneity of ASD through the lenses of both phenotypic and genetic data. 1:45 205.001 Identification and Characterization of Noncoding De Novo Variants in Autism T. N. Turner, Department of Genetics, Washington University in St. Louis, St. Louis, MO

40 • INSAR 2021 VIRTUAL ANNUAL MEETING • Tuesday May 4, 2021

Panel Session Recent evidence suggests that autism-associated motor deficits may be grossly Novel Therapeutic Approaches (gene, protein or RNA targeted underestimated; yet, motor traits specific to autism remain elusive. A key factor contributing to these disparate findings is the lack of rigorous methods for assess- therapies) ing subtle differences in the vast array of motor behaviors that emerge during typ- Panel 206 - Gene-Based Therapies in Development for Rett ical and atypical development. Symposium speakers will present tools to improve Syndrome measurement feasibility and accuracy for early motor behaviors and to test hypoth- eses regarding the role motor skills play in the development of social behaviors 1:45 PM - 3:45 PM central to autism. Speaker #1 will present quantitative, body sensor-based mea- sures of early infant leg movement that are more sensitive to clinical risk for autism than standard motor batteries. Speaker #2 will discuss efforts to develop robust Panel Chair: R. Carpenter, Rett Syndrome Research Trust, Trumble, CT computer vision-based methods to measure infant facial movement and to quantify infant-caregiver synchrony. Speaker #3 will provide an overview of studies validat- Discussant: D. Pichard, International Rett Syndrome Foundation, ing a mobile app using computer vision analysis to assess a range of early motor Cincinnati, OH differences in toddlers with and without autism. Speaker #4 will discuss efforts to expand our understanding of the interplay of early motor and social behaviors to Rett Syndrome (RTT) is a developmental disorder characterized by loss of spoken African pediatric populations. language and hand use, and distinctive stereotypic hand movements. Typical 1:45 207.001 Quantitative Characterization of Early Motor Differences RTT is almost exclusively caused by de novo loss of function mutations in the 1 2 3 1 X-linked gene,MECP2. Mouse models deficient in Mecp2 protein have a range of in Autism R. B. Wilson , B. A. Smith , T. Safari , D. Elashoff and S. 1 phenotypes that mimic the human syndrome. Mice with induced Rett Syndrome do Vangala , (1)UCLA Medical Center, Los Angeles, CA, (2)Children’s not have evidence of neuronal death, suggesting thatRett syndrome is a neurode- Hospital Los Angeles, Los Angeles, CA, (3)Semel Institute for velopmental condition as opposed to a neurodegenerative condition. Furthermore, Neuroscience and Human Behavior, Los Angeles, CA genetic reactivation of silenced Mecp2 in conditional knockout mice produces a robust and enduring reversal of phenotypes. The inherent reversibility of the 2:05 207.002 Computational Analysis of Interactional Synchrony: A Novel mouse phenotypes makes restoration of MeCP2 protein an obvious therapeutic Measure of Autism Risk C. J. Zampella, E. Sariyanidi, L. S. Cubit, M. strategy for treatment of RTT. This session will provide an update on the molec- Drye, M. Fecher, L. K. Steinbeck, L. A. Wang, K. Bartley, B. Tunc, R. T. ular pathophysiology of RTT and significant progress with four genetically based Schultz and W. Guthrie, Center for Autism Research, Children’s Hospital therapeutic approaches – gene replacement, DNA editing, RNA editing and RNA of Philadelphia, Philadelphia, PA transsplicing. The therapeutic presentations will review the scientific foundation for each approach, current status of development as well as advantages and disad- 2:25 207.003 Computational Approaches to the Assessment of Early vantages compared to the alternative therapeutic approaches. Motor Behavior in Autism G. Dawson1, K. L. Carpenter1, Z. Chang2, J. M. Di Martino2, S. Espinosa2, S. Perochon2, P. R. Krishnappa Babu2 and 1:45 206.001 Scientific Rationale for Restoring MeCP2 Protein As a G. Sapiro2, (1)Department of Psychiatry and Behavioral Sciences, Duke Treatment for Rett Syndrome M. J. Lyst, University of Edinburgh, Center for Autism and Brain Development, Durham, NC, (2)Department Eniburgh, United Kingdom of Electrical and Computer Engineering, Duke University, Durham, NC 2:00 206.002 An Innovative Regulated Gene Replacement Therapy 2:45 207.004 Towards a Scalable Multidimensional Approach to Approach for Rett Syndrome S. Prasad, Taysha Gene Therapies, San Identifying Early Markers of Autism Among Toddlers in Sub-Saharan Francisco, CA Africa E. Bonney1, C. Abbo2, M. E. Villalobos3 and J. T. Elison4, (1) 2:15 206.003 Development of RNA Editing As a Therapeutic Approach Institute of Child Development, University of Minnesota, Minneapolis, for Rett Syndrome J. Sinnamon, M. Jacobson and G. Mandel, Oregon MN, (2)Psychiatry, Makerere University, Kampala, Uganda, (3) Health & Science University, Portland, OR Pediatrics, University of Utah, Park City, UT, (4)University of Minnesota, Minneapolis, MN 2:30 206.004 RNA Transsplicing Therapeutic Development for Rett Syndrome S. R. Cobb, Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom Keynote Address and INSAR Awards Ceremony Lifetime Achievement Awardee 4:00 PM - 6:00 PM Panel Session Sensory, Motor, and Repetitive Behaviors and Interests Panel 207 - Bodies, Faces, and Limbs: Measuring Movement in the Context of Autism 4:00 Awards Ceremony 1:45 PM - 3:45 PM 5:00 Advocate Awardee Address John Robison Panel Chair: M. B. Nebel, Center for Neurodevelopmental and Imaging Research, Kennedy Krieger Institute, Baltimore, MD 5:10 Lifetime Achievement Awardee Address Discussant: S. H. Mostofsky, Center for Autism and Related Disorder, Helen Tager-Flusberg Kennedy Krieger Institute, Baltimore, MD

41 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

Keynote Address 11:15 208.001 Transcriptomic Investigation of Intersections between Sex- Event 103 - Keynote - Tony Charman, PhD Differential and ASD Neurobiology in Pre- and Postnatal Human Cortex D. M. Werling1, L. T. Kissel2, S. Pochareddy3, N. Sestan4, K. Roeder5, Two Steps Forward, One Step Back: Lessons from Developmental B. Devlin6 and S. J. Sanders7, (1)Laboratory of Genetics, University of Studies of Early Autism Wisconsin-Madison, Madison, WI, (2)Neuroscience Training Program, 10:00 AM - 11:00 AM University of Wisconsin-Madison, Madison, WI, (3)Yale University, New Haven, CT, (4)Yale School of Medicine, New Haven, CT, (5)Department of Statistics and Data Science, Carnegie Mellon University, Pittsburgh, Speaker: T. Charman, Department of Psychology, Institute of Psychiatry, PA, (6)Department of Psychiatry, University of Pittsburgh School of Psychology and Neuroscience, King’s College London, London, United Medicine, Pittsburgh, PA, (7)Department of Psychiatry, Weill Institute for Kingdom Neuroscience, UCSF School of Medicine, San Francisco, CA

The past few decades has seen great progress in early autism research. 11:35 208.002 Ube3a Duplication Results in Sex-Divergent Effects on the 1 2 2 Thirty years ago the notion that autism could be prospectively identified Connectome and Transcriptome C. Montani , M. Pagani , A. Galbusera , 3 4 4 5 2 in infancy, that early intervention could begin at the age of two or even L. Balasco , G. Provenzano , Y. Bozzi , M. V. Lombardo and A. Gozzi , (1)Istituto Italiano di Tecnologia, Rovereto, Italy, (2)Istituto Italiano di before, and that we would be uncovering evidence on internal and Tecnologia, Functional Neuroimaging Lab, Centre for Neuroscience and external influences on outcomes from such an early age was restricted Cognitive Systems, Rovereto, Italy, (3)University of Trento, Rovereto, to a handful of optimists (and visionaries). I will review our work, and that Italy, (4)University of Trento, Trento, Italy, (5)Center for Neuroscience of other groups, on population screening, early diagnosis and outcomes, and Cognitive Systems, Laboratory for Autism and Neurodevelopmental studies of infants with a family history of autism, and early intervention Disorders, Istituto Italiano di Tecnologia, Rovereto, Italy trials. Whilst progress has been made, there are also salutary lessons to 11:55 208.003 Sex Differences in Amygdala Development in Autism from be learnt about whether we have been using the right methods or even Early to Middle Childhood C. W. Nordahl1, J. K. Lee2, D. S. Andrews2, asking the right questions. B. Heath2, M. Solomon2, A. M. Iosif3 and S. Ozonoff4, (1)University of California at Davis School of Medicine, Sacramento, CA, (2)Department of Psychiatry and Behavioral Sciences, The Medical Investigation of Panel Session Neurodevelopmental Disorders (MIND) Institute, UC Davis School of Behavioral Neuroscience Medicine, University of California Davis, Sacramento, CA, (3)Public Panel 208 - The Multi-Level Neurosciences of Sex, Gender and Health Sciences, University of California Davis, Davis, CA, (4)Psychiatry Autism and Behavioral Sciences, University of California at Davis, MIND Institute, Sacramento, CA 11:15 AM - 1:15 PM 12:15 208.004 Will Neuroimaging Research Unveil the Mechanistic Roles of Sex and Gender in Autism? Sex/Gender-Based Heterogeneity, “Female- Panel Chair & Discussant: M. C. Lai, The Margaret and Wallace Protection”, and Compensation in the Human Autistic Brains M. C. Lai, McCain Centre for Child, Youth and Family Mental Health, Centre The Margaret and Wallace McCain Centre for Child, Youth and Family for Addiction and Mental Health, Toronto, ON, Canada; Azrieli Adult Mental Health, Centre for Addiction and Mental Health, Toronto, ON, Neurodevelopmental Centre, Centre for Addiction and Mental Health, Canada; Azrieli Adult Neurodevelopmental Centre, Centre for Addiction Toronto, ON, Canada; Department of Psychiatry, University of Toronto, and Mental Health, Toronto, ON, Canada; Department of Psychiatry, Toronto, ON, Canada; The Hospital for Sick Children, Toronto, ON, University of Toronto, Toronto, ON, Canada; The Hospital for Sick Canada Children, Toronto, ON, Canada

Mechanisms associated with sex and gender play multiple roles influencing the biological mechanisms associated with the emergence of autism, the developmen- tal trajectories and coping experiences of autistic individuals, and the diagnosis and clinical care for people on the autism spectrum across sexes and gender. New discovery and improved understanding of these multiple roles of sex and gender in autism is promising in guiding new research to better understand the etiology and neurobiology of autism, and clinical innovation of sex- and gender-informed support for autistic people. This panel will present overviews and cutting-edge new findings on the rapidly emerging research field of sex and gender impacts on autism, across the levels of genomics, neurobiology across species, neuroimaging, and behavior.

42 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

Panel Session Panel Session Biomarkers (molecular, phenotypic, neurophysiological, etc) Diagnostic, Behavioral, Sensory and Intellectual Screening Panel 209 - EEG Biomarkers in Neurodevelopmental Disorders: and Assessment From Mechanisms and Methods to Clinical Trial Readiness Panel 210 - Innovations in the Use of Telehealth for 11:15 AM - 1:15 PM Evaluating and Treating Autism Spectrum Disorder 11:15 AM - 1:15 PM Panel Chair: S. Jeste, University of California, Los Angeles, Los Angeles, CA Panel Chair: C. Albright, Nationwide Children’s Hospital, Westerville, OH

As early interventions and etiologically-specific therapies are developed in NDDs, Discussant: J. F. Hine, Vanderbilt University Medical Center, Nashville, we must be prepared for the design and implementation of successful clinical tri- TN als. Quantitative, developmentally sensitive, and mechanistically informed biomark- ers are critical for early detection, patient stratification, selection for therapeutics Create and validating comprehensive telehealth service models to assess and and establishment of drug target engagement. Electroencephalography (EEG) is a treat Autism Spectrum Disorder (ASD) would aid in overcoming disparities in functional brain imaging method that assays, with exquisite temporal and develop- access to services caused by factors such as poor access to transportation mental sensitivity, neural circuit function and dysfunction in NDDs and holds prom- and long distances from major healthcare systems, as well as make healthcare ise as a robust method for biomarker discovery in NDDs. However, there exist systems more agile in times of crisis, such as the current pandemic. This panel methodological challenges in EEG studies that require robust standardization of presents work being done to establish multiple ways telehealth could be used for methods, well powered sample sizes, replication, and cross disorder and species service delivery of initial ASD screening, toddler evaluation, child and adolescent comparisons. In this panel, we share experiences by experts in EEG methodology evaluation, and intervention. These presentations establish the utility of telehealth across these areas of early detection (Dr. Abigail Dickinson), the process of EEG models across these domains, as well as highlight lessons learned while creating biomarker approval through the FDA (Dr. Sara Webb), EEG as a translational and establishing these services. Strengths across these models include the oppor- biomarker across genetic syndromes (Dr. Charles Nelson) and EEG studies in tunity to highlight and benefit from strong partnerships with parents, as well as the Angelman syndrome that will inform upcoming trials (Drs. Mike Sidorov and Rob ability to provide flexible and responsive models of care for all families. Limitations Komorowski). Dr. Shafali Jeste (discussant) will share perspectives on next steps highlighted include technology needs and environmental and intrapersonal factors needed to ensure that these EEG biomarkers can be applied in clinically accessi- of families and children to consider when assessing fit for telehealth practice. This ble and reliable ways to improve care of children with NDDs. panel will also discuss the opportunities that telehealth options provide for extend- ing care to families who would otherwise have difficulty accessing specialized 11:15 209.001 EEG Biomarkers of Early ASD Detection in Infancy: Signal Autism services, creating greater healthcare equity. Processing Considerations and Consortium Building A. H. Dickinson, University of California, Los Angeles, Los Angeles, CA 11:15 210.001 Utilising a Mobile Application for the Early Detection of Autism in Infants and Toddlers: Asdetect J. Barbaro, N. Sadka, E. 11:35 209.002 A Framework for EEG Biomarker Development: The Autism Beattie and C. Dissanayake, Olga Tennison Autism Research Centre, La 1 2 Biomarkers Consortium for Clinical Trials S. J. Webb , J. McPartland Trobe University, Melbourne, VIC, Australia and C. Sugar3, (1)Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, (2)Child Study Center, Yale University School 11:35 210.002 Initial Implementation of the Veda Telehealth Assessment of Medicine, New Haven, CT, (3)University of California, Los Angeles, Model of Autism Spectrum Disorder across Childhood E. Kryszak1, Los Angeles, CA C. Albright2, K. G. Stephenson3, S. Harris4, M. Norris5, C. Burns6, A. Kalomiris7, A. Newmeyer8, T. Hollingsworth9, J. A. Mulick10 and 11:55 209.003 Using Biomarkers to Characterize Neurobiological Deficits in E. Butter11, (1)Nationwide Chidlren’s Hospital, Westerville, OH, (2) Neurodevelopmental Disorders: A Case Study in TSC, Rett Syndrome, Nationwide Children’s Hospital, Westerville, OH, (3)Brigham Young 16P, and Fragile X Syndrome C. A. Nelson, Developmental Medicine, University, Provo, UT, (4)Department of Pediatrics Division of Boston Children’s Hospital, Boston, MA Psychology, Michigan Medicine, Ann Arbor, MI, (5)Child Development Center, Nationwide Children’s Hospital, Westerville, OH, (6)UNC Chapel 12:15 209.004 Quantifying EEG Oscillations in Angelman Syndromes: Hill, Chapel Hill, NC, (7)Cincinnati Children’s Hospital Medical Center, Implications for Drug Development M. S. Sidorov, Center for Cincinnati, OH, (8)Nationwide Childrens Hospital/Ohio State University, Neuroscience Research, Children’s National Hospital, Washington, DC Columbus, OH, (9)Nationwide Childrens Hospital, Columbus, OH, (10) 12:35 209.005 Quantifying EEG Oscillations in Angelman Syndromes: Ohio State Universty, Columbus, OH, (11)Nationwide Children’s Hospital, Implications for Drug Development - Part II R. Komorowski, Biogen, Columbus, OH West Roxbury, MA 11:55 210.003 Feasibility of Community-Based Autism Telehealth Parent Coaching during COVID-19 C. Nadler1,2, D. Olsen1,2, M. Campbell1,2, T. Perez Crawford1,2, L. Hansen1, C. Pittard1, A. Gibson1, M. Gibson1 and M. Dreyer Gillette1,2, (1)Children’s Mercy Kansas City, Kansas City, MO, (2) University of Missouri Kansas City School of Medicine, Kansas City, MO

43 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

12:15 210.004 Caregiver-Mediated Evaluations Via Telemedicine: A 11:55 211.003 Mapping the Time Course of Emotion Dysregulation Response to COVID-19 for Young Children at Risk for Autism L. and Challenging Behaviors in Psychiatrically Hospitalized Youth Wagner1, J. F. Hine1, L. Corona2, A. S. Weitlauf3, K. L. Marsh4, A. F. with Autism Spectrum Disorder J. B. Northrup1, M. S. Goodwin2, Q. Berman2, A. Nicholson5, C. Stone1, N. A. Broderick1, S. Francis6 and Chen3, C. Peura4, M. Siegel5,6 and C. A. Mazefsky1, (1)Department of Z. Warren1, (1)Vanderbilt University Medical Center, Nashville, TN, (2) Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, Vanderbilt University Medical Center - Treatment and Research Institute (2)Northeastern University, Boston, MA, (3)University of Pittsburgh, for Autism Spectrum Disorder, Nashville, TN, (3)Vanderbilt Kennedy Pittsburgh, PA, (4)Spring Harbor Hospital, Westbrook, ME, (5)Maine Center, Vanderbilt University Medical Center, Nashville, TN, (4)Unumb Medical Center - Tufts School of Medicine, Westbrook, ME, (6)Maine Center of Neurodevelopment, Columbia, SC, (5)Vanderbilt University, Medical Center - Tufts School of Medicine - Spring Harbor Hospital, Pleasant View, TN, (6)Vanderbilt University Medical Center - Treatment Westbrook, ME and Research Institute for Autism Spectrum Disorder, Nashville, NY 12:15 211.004 The Impact of Emotion Regulation Strategies on Mental Health in Adults with Autism A. M. Brewe1, I. Smith2 and S. W. White1, Panel Session (1)Psychology, The University of Alabama, Tuscaloosa, AL, (2)Virginia Tech, Blacksburg, VA Emotion Panel 211 - Self-Regulation and Associated Clinical Features in Autism across the Lifespan Panel Session 11:15 AM - 1:15 PM Immunology Panel 212 - Microbiota and Immune Signaling in Panel Chair: D. Swain, Virginia Polytechnic Institute and State University, Neurodevelopmental Disorders Blacksburg, VA 11:15 AM - 1:15 PM

Discussant: S. H. Kim, Psychiatry, Center for Autism and the Developing Brain, White Plains, NY Panel Chair: J. A. Foster, Department of Psychiatry & Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada Self-regulation (SR) encompasses emotional, behavioral, and cognitive processes. Impairment in SR, especially as it relates to emotion dysregulation, has been well Discussant: T. Gur, Ohio State University, Columbus, OH documented in individuals with ASD, which may emerge as early as one year of age. Less is known regarding the underlying mechanisms of SR development as Trillions of microbes cover the surfaces of our bodies and inhabit our gastrointesti- well as outcomes associated with impairments in SR. This session directly targets nal tract. In the past decade, research efforts examining the role of the microbiome possible determinants of SR (Presentation 1 and 2), co-occurring behavioral fea- in mental health have moved to the forefront of neuroscience and psychiatry. Our tures (Presentation 3), and clinical outcomes related to SR (Presentation 3 and increasing knowledge on pathways and involved mediators along the gut-brain 4) across the developmental span from early childhood to adulthood. Specifically, axis has revolutionized our understanding of brain-body interaction. Intestinal the first presentation examines the caregiver role as it relates to behavioral reg- bacteria act along the gut-brain axis in part by modifying the immune response. On ulation in toddlers with ASD. The second presentation explores the relationship the other side, bacteria produce neuroactive mediators and can modulate neuronal between ASD characteristics and SR in a diverse sample of school-children. function, plasticity and behavior. Understanding the influence of microbiota-brain The third presentation describes the co-occurrence of emotion dysregulation and axis on brain function and behaviour is at the forefront of neuroscience research other challenging behaviors (self-injurious behavior or aggression) in an in-patient and microbiota-brain is essential to normal and healthy brain development. This setting. The fourth presentation examines the predictive role of emotion regulation session will highlight recent work in animal models examining the importance the response patterns on co-occurring psychopathology and life satisfaction for indi- brain’s innate immune cell in neurodevelopmental disorders and will explore recent viduals with ASD during emerging-adulthood. Finally, the discussant will highlight work examining the potential of microbiota-targeted therapies in autism. themes and future directions regarding SR studies in ASD. 11:15 212.001 The Role of Bidirectional Communication between Gut 11:15 211.001 Exploring the Effects of Treatment and Caregiver Requests Bacteria and T Cells in Neurodevelopment J. A. Foster, Department of on Behavioral Self-Regulation in Toddlers with Autism A. D. Nunnally1, Psychiatry & Behavioural Neurosciences, McMaster University, Hamilton, A. Gulsrud2 and C. Kasari3, (1)UC Davis MIND Institute, University ON, Canada of California, Davis, Sacramento, CA, (2)UCLA Semel Institute for Neuroscience & Human Behavior, Los Angeles, CA, (3)University of 11:30 212.002 Microglial P2Y12R in Sex-Biased ASD-like Behavioral California, Los Angeles, Los Angeles, CA Phenotypes U. Eyo, Neuroscience, University of Virginia, Charlottesville, VA 11:35 211.002 Examining Predictors of Emotion Dysregulation in Children with ASD and Co-Occurring Psychopathology D. Swain1, N. Cristallo2, 11:45 212.003 Gut-Derived Metabolites in Autism Spectrum Disorder and H. F. Branyan3, C. Lord4 and S. H. Kim2, (1)Virginia Polytechnic Institute Mouse Models of Behavior S. K. Mazmanian, Division of Biology & and State University, Blacksburg, VA, (2)Psychiatry, Center for Autism Biological Engineering, California Institute of Technology, Pasadena, CA and the Developing Brain, White Plains, NY, (3)Center for Autism and 12:00 212.004 Microbiota Transfer Therapy for Autism: Microbiome and the Developing Brain, White Plains, NY, (4)University of California, Los Metabolites Changes R. Krajmalnik-Brown and J. Adams, Arizona State Angeles, Los Angeles, CA University, Tempe, AZ

12:15 212.005 Microbiota Transfer Therapy for Autism: GI and ASD Outcomes J. Adams and R. Krajmalnik-Brown, Arizona State University, Tempe, AZ

44 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

Panel Session Panel Session Interventions - Non-pharmacologic - School-Age, Service Delivery/Systems of Care Adolescent, Adult Panel 214 - Using Novel Implementation Tools for Evidence- Panel 213 - Promoting Pre-Employment Skills in Autistic Based Practice Delivery (UNITED) for Under Resourced Transition Age Youth Settings 11:15 AM - 1:15 PM 11:15 AM - 1:15 PM

Panel Chair: K. Sherwood, School of Social Work, University of Michigan, Panel Chair: J. Locke, Speech & Hearing Sciences, University of Ann Arbor, MI, Department of Psychology, University of Michigan, Ann Washington, Seattle, WA Arbor, MI Discussant: D. S. Mandell, Penn Center for Mental Health, University of Discussant: D. Juliano-Bult, National Institute of Mental Health, Pennsylvania, Philadelphia, PA Bethesda, MD There is a growing number of evidence-based practices for children with autism, Vocational experiences are associated with quality of life in adulthood. Despite but few are successfully implemented in under resourced communities and with the growing population of adolescents and adults with autism spectrum disorder, families from traditionally disenfranchised groups. Conducting research in com- only 32% of autistic young adults obtain a job the first two years after high school. munity-based settings creates opportunities to build capacity in existing service Transition-age autistic individuals experience difficulties in both obtaining and sus- systems to ensure evidence-based practices are readily accessible, relatively taining employment. Few research studies have examined skills and interventions low-cost, and sustainable. In order to have a lasting impact, autism research must focused on promoting skills essential for employment. This panel will focus on focus on broadening access, expanding reach, and facilitating widespread avail- topics related to pre-employment skills and interventions in autistic transition-age ability of services in the community. Utilizing implementation strategies defined youth, including executive function, social cognition, job interview skills, implemen- as “methods or techniques used to enhance the adoption, implementation, and tation of interventions in schools, and longitudinal employment outcomes. sustainment of a clinical program or practice” is critical to support organizations and providers use evidence-based practices. We will present data from four stud- 11:15 213.001 Transition Age Youth (TAY) Success RCT Feasibility Study ies that use novel implementation strategies to facilitate evidence-based practice Targeting Executive Functioning and Social Cognitive Skills to Improve delivery and enhance access to care in under resourced community settings. The Outcomes M. Baker-Ericzen1, A. Tran2, K. Scarvie1, B. Kraemer3, L. four studies engage different implementation strategies (e.g., multi-system training, Brookman-Frazee4 and C. Sax5, (1)Rady Children’s Hospital San Diego, parent navigation, remote training, use of advisory boards and stakeholder work- San Diego, CA, (2)Child and Adolescent Services Research, Rady groups) to: 1) promote earlier access to specialized intervention for toddlers with Children’s Hospital, San Diego, CA, (3)Special Education, San Diego autism; 2) support parents of newly diagnosed children with autism; 3) increase State University, San Diego, CA, (4)Psychiatry, UC San Diego, La Jolla, the use of JASPER in community settings; and 4) adapt a disruptive behavior CA, (5)College of Education, San Diego State University, San Diego, CA intervention for school-aged children with autism. 11:15 214.001 A Multi-System Approach to Improving Access to Early 11:35 213.002 Virtual Interview Training for Autistic Transition Age Youth: A 1 Detection and Intervention for Toddlers in Underserved Communities W. Randomized Controlled Feasibility and Effectiveness Trial M. J. Smith , 1 2 1,2 1 3 4 5 L. Stone and L. V. Ibanez , (1)Psychology, University of Washington, K. Sherwood , B. Ross , J. D. Smith , L. E. Smith DaWalt , L. Bishop , Seattle, WA, (2)UW READi Lab, Seattle, WA L. Humm6, J. Elkins6 and C. Steacy6, (1)School of Social Work, University of Michigan, Ann Arbor, MI, (2)Department of Psychology, University of 11:35 214.002 Remote Supports for Practitioners and Parents: Community Michigan, Ann Arbor, MI, (3)University of Utah, Provo, UT, (4)University Jasper Implementation S. Y. Shire1, L. Baker Worthman2 and C. Kasari3, of Wisconsin-Madison Waisman Center, Madison, WI, (5)University of (1)University of Oregon, Eugene, OR, (2)Department of Health and Wisconsin - Madison, Madison, WI, (6)SIMmersion, LLC, Columbia, MD Community Services, St. John’s, Newfoundland and Labrador, Canada, (3)University of California, Los Angeles, Los Angeles, CA 11:55 213.003 Mixed-Methods Implementation Evaluation of School- Based Virtual Interview Training for Transition Age Autistic Youth K. 11:55 214.003 Mind the Gap, a Caregiver-Engagement Focused Sherwood1,2, M. J. Smith1, J. Johnson1, M. Harrington1, B. Ross1, S. Intervention for Traditionally Underserved Families with a New Autism Blajeski1, L. E. Smith DaWalt3, L. Bishop4 and J. D. Smith5, (1)School Diagnosis S. Iadarola1, M. Pellecchia2, A. C. Stahmer3, A. Gulsrud4, H. of Social Work, University of Michigan, Ann Arbor, MI, (2)Department S. Lee5, W. I. Shih5 and C. Kasari5, (1)University of Rochester Medical of Psychology, University of Michigan, Ann Arbor, MI, (3)University of Center, Rochester, NY, (2)University of Pennsylvania, Philadelphia, PA, Wisconsin-Madison Waisman Center, Madison, WI, (4)University of (3)UC Davis MIND Institute, University of California, Davis, Sacramento, Wisconsin - Madison, Madison, WI, (5)University of Utah, Provo, UT CA, (4)UCLA Semel Institute for Neuroscience & Human Behavior, Los Angeles, CA, (5)University of California, Los Angeles, Los Angeles, CA 12:15 213.004 Longitudinal Employment Outcomes for Young Adults with Autism: Follow up to a High School-Based RCT K. Hume1, B. 12:15 214.004 Using Advisory Boards and Stakeholder Workgroups to Tomaszewski1, S. L. Odom2, J. R. Steinbrenner1, L. J. Hall3, L. E. Smith Adapt the Rubi Program for Use in Educational Settings J. Locke1 and DaWalt4 and B. Kraemer3, (1)Frank Porter Graham Child Development K. Bearss2, (1)Speech & Hearing Sciences, University of Washington, Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, (2) Seattle, WA, (2)Psychiatry and Behavioral Sciences, University of Frank Porter Graham Child Development Institute, University of North Washington, Seattle, WA Carolina at Chapel Hill, San Diego, CA, (3)Special Education, San Diego State University, San Diego, CA, (4)University of Wisconsin-Madison Waisman Center, Madison, WI

45 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

Keynote Address Panel Session Event 104 - Keynote - Lucina Q. Uddin, PhD Adult Outcome: Medical, Cognitive, Behavioral, Social, Network Neuroscience of Autism Adaptive, Vocational 1:45 PM - 2:45 PM Panel 215 - Towards Cross- and Multimodal Biomarker Discovery in Autism – Updates from the AIMS2TRIALS Speaker: L. Uddin, University of Miami, Coral Gables, FL Project 3:00 PM - 5:00 PM Recent advances in network neuroscience have paved the way for discoveries into the neurobiology of autism. Network neuroscience has Panel Chair and Discussant: J. K. Buitelaar, Department of Cognitive introduced tools and conceptual frameworks that permit exploration Neuroscience, Donders Institute for Brain, Cognition and Behaviour, of dynamic aspects of brain function in vivo. Over the past decade, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands “under-connectivity” theories of autism have given way to more nuanced characterizations of the neural basis of the disorder. I will review our Autism spectrum disorder (ASD) is among the most common neurodevelopmental recent functional neuroimaging studies investigating functional brain conditions. Nonetheless, effective medical treatments for the core symptoms are connectivity in autism through a developmental lens. I will further still lacking. This is largely due to the great clinical and biological heterogeneity illustrate how analysis of brain dynamics can contribute to understanding across the autism spectrum, which hinders our ability to detect significant effica- flexible behaviors in autism. The talk will conclude with a discussion cy signals. Consequently, over recent years, research efforts have increasingly focused on the identification and validation of biomarkers that allow the strati- of some of our recent work parsing heterogeneity and comorbidity in fication of patient populations according to biological subtypes. As the largest neurodevelopmental disorders using individual connectome mapping. multicenter, multidisciplinary autism project worldwide, the AIMS2TRIALS con- sortium provides an unprecedented opportunity to answer questions related to biomarkers. Specifically, the AIMS2TRIALS Longitudinal European Autism Project Events (LEAP) aims to improve our understanding of disease mechanisms to identify and Event 603 - Autism Research Author Workshop validate stratification markers and targets for surrogate endpoints, and to guide the development of personalized precision medicine approaches in ASD. Here, 3:00 PM - 5:00 PM we present an update on our most recent research efforts within LEAP across different imaging and neurocognitive modalities (EEG, eye-tracking, structural, task and resting-state fMRI), and introduce novel, innovative imaging methods (connec- This workshop will cover everything you need to know on how to publish your tome-wide mega-analysis, normative modeling, task potency, linked independent next paper, including an overview of best practices for writing and submitting your component analysis, canonical correlation analysis). Combined, our findings paper, and maximizing the impact of your research. Session supported by Wiley, highlight neurodevelopmental differences at different levels linked to outcome and publisher of our society journal, Autism Research. represent potentially suited treatment targets. 3:24 Journal Associate Editor - Subject Areas: Treatment and Clinical Trials 3:00 215.001 The N170 Face-Sensitive Brain Response: Toward E. Anagnostou, Autism Research Center, Bloorview Research Institute, a Stratification Biomarker for ASD E. J. Jones1, L. Mason1, C. Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada Moessnang2, C. H. Chatham3, L. Ham4, J. Tillmann5, G. Dumas6, C. 7 8 9 10 11 3:12 Journal Senior Associate Editor P. Mundy, University of California at L. Ellis , C. Leblond , F. Cliquet , T. Bourgeron , T. Charman , J. K. 12 13 14 13 15 Davis, Sacramento, CA Buitelaar , E. Loth , M. Johnson , D. Murphy and L. G. EU-AIMS , (1)Centre for Brain and Cognitive Development, Birkbeck, University 4:00 Journal Associate Editor - Subject Areas: Animal, Cellular and of London, London, United Kingdom, (2)Department of Psychiatry Computational Model Systems J. Veenstra-VanderWeele, Psychiatry, and Psychotherapy, Central Institute of Mental Health, University of New York State Psychiatric Institute / Columbia University, New York, NY Heidelberg, Mannheim, Germany, (3)Neuroscience and Rare Diseases (NRD), Roche Pharma Research and Early Development, Roche 3:36 Journal Associate Editor - Subject Areas: Epidemiology M. D. Fallin, Innovation Center, New York, CA, (4)Roche, Basel, Swaziland, (5) Wendy Klag Center for Autism and Developmental Disabilities, Johns Institute of Psychiatry, Psychology and Neuroscience, King’s College Hopkins Bloomberg School of Public Health, Baltimore, MD London, London, United Kingdom, (6)Human Genetics and Cognitive Functions Unit, Institut Pasteur, Paris, France, (7)Forensic and 3:48 Journal Associate Editor - Subject Areas: Omics G. Konopka, The Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and University of Texas Southwestern Medical Center, Dallas, TX Neuroscience, King’s College London, London, United Kingdom, (8) 3:00 Journal Editor-in-Chief D. G. Amaral, Department of Psychiatry and Institut PASTEUR, Paris, France, (9)Institut Pasteur, Paris, France, (10) Behavioral Sciences, The Medical Investigation of Neurodevelopmental Human Genetics and Cognitive Functions, Institut Pasteur, Paris, France, Disorders (MIND) Institute, UC Davis School of Medicine, University of (11)Department of Psychology, Institute of Psychiatry, Psychology and California Davis, Sacramento, CA Neuroscience, King’s College London, London, United Kingdom, (12) Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, (13)Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom, (14) Department of Psychology, University of Cambridge, Cambridge, United Kingdom, (15)EU-AIMS Organization, London, United Kingdom

46 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

3:20 215.002 Social Attention in Complex Dynamic Scenes Relates to 4:00 215.004 Cross-Modal Analyses Define Atypical Connectivity Symptom Severity in Children, Adolescents and Adults with ASD L. Biomarkers in Autism D. Floris1, I. Ilioska2, T. Mei3, G. Bussu4, T. Mason1, E. J. Jones1, J. Tillmann2, H. L. Hayward3, T. Charman4, E. Looden1, T. Banaschewski5, C. Moessnang6, T. Charman7, J. Tillmann8, Loth5, J. K. Buitelaar6, D. Murphy5 and L. G. EU-AIMS7, (1)Centre for S. Baron-Cohen9, S. Durston10, F. dell’Acqua11, E. Loth11, D. Murphy11, J. Brain and Cognitive Development, Birkbeck, University of London, K. Buitelaar3, C. Beckmann12 and L. G. EU-AIMS13, (1)Donders Centre London, United Kingdom, (2)Institute of Psychiatry, Psychology and for Cognitive Neuroimaging, Nijmegen, Netherlands, (2)Department Neuroscience, King’s College London, London, United Kingdom, (3) of Cognitive Neuroscience, Donders Institute for Brain, Cognition Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, and Behaviour, Nijmegen, Netherlands, (3)Department of Cognitive Psychology and Neuroscience, King’s College London, London, Neuroscience, Donders Institute for Brain, Cognition and Behaviour, United Kingdom, (4)Department of Psychology, Institute of Psychiatry, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, Psychology and Neuroscience, King’s College London, London, (4)Donders Institute for Brain, Cognition and Behaviour, Radboudumc, United Kingdom, (5)Department of Forensic and Neurodevelopmental Nijmegen, Netherlands, (5)Department of Child and Adolescent Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s Psychiatry, Central Institute of Mental Health, University of Heidelberg, College London, London, United Kingdom, (6)Department of Cognitive Mannheim, Germany, (6)Department of Psychiatry and Psychotherapy, Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Central Institute of Mental Health, University of Heidelberg, Mannheim, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, Germany, (7)Department of Psychology, Institute of Psychiatry, (7)EU-AIMS Organization, London, United Kingdom Psychology and Neuroscience, King’s College London, London, United Kingdom, (8)Institute of Psychiatry, Psychology and Neuroscience, King’s 3:40 215.003 Neuroanatomical and Genetic Substrates of Change in College London, London, United Kingdom, (9)Autism Research Centre, 1 Adaptive Behaviour in Autism Spectrum Disorder C. M. Pretzsch , Department of Psychiatry, University of Cambridge, Cambridge, United 2 3 4 2 2 T. Schäfer , M. V. Lombardo , V. Warrier , C. Mann , A. Bletsch , Kingdom, (10)Department of Psychiatry, Brain Center Rudolf Magnus, 5 6 7 8 9 C. H. Chatham , D. Floris , J. Tillmann , A. Yousaf , E. J. Jones , T. University Medical Center Utrecht, Utrecht, Netherlands, (11)Department 10 11 12 13 14 Charman , S. Ambrosino , T. Bourgeron , G. Dumas , E. Loth , J. K. of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, 15 16 17 18 19 Buitelaar , F. Cliquet , C. Leblond , S. Baron-Cohen , C. Beckmann , Psychology and Neuroscience, King’s College London, London, United 20 21 22 14 T. Banaschewski , S. Durston , C. M. Freitag , D. Murphy , C. Kingdom, (12)Centre for Functional MRI of the Brain (FMRIB), University 23 24 Ecker and L. G. EU-AIMS , (1)IoPPN King’s College London, London, of Oxford, Oxford, United Kingdom, (13)EU-AIMS Organization, London, United Kingdom, (2)Department of Child and Adolescent Psychiatry, United Kingdom Psychosomatics and Psychotherapy, Goethe-University Frankfurt am Main, Frankfurt, Germany, (3)Center for Neuroscience and Cognitive Systems, Laboratory for Autism and Neurodevelopmental Disorders, Panel Session Istituto Italiano di Tecnologia, Rovereto, Italy, (4)University of Cambridge, Cambridge, United Kingdom, (5)Neuroscience and Rare Diseases Interventions - Non-pharmacologic - Infant, Toddler, and (NRD), Roche Pharma Research and Early Development, Roche Preschool Innovation Center, New York, CA, (6)Donders Centre for Cognitive Panel 216 - The State of Autism Intervention Research for Neuroimaging, Nijmegen, Netherlands, (7)Institute of Psychiatry, Young Children Psychology and Neuroscience, King’s College London, London, United Kingdom, (8)Goethe University Frankfurt, Frankfurt, Germany, (9)Centre 3:00 PM - 5:00 PM for Brain and Cognitive Development, Birkbeck, University of London, London, United Kingdom, (10)Department of Psychology, Institute of Panel Chair: M. Sandbank, The University of Texas at Austin, Austin, TX Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom, (11)University Medical Center, Utrecht, This panel highlights findings from several recent (published and in-progress) sys- Netherlands, (12)Human Genetics and Cognitive Functions, Institut tematic reviews and meta-analyses of nonpharmacological intervention research Pasteur, Paris, France, (13)Human Genetics and Cognitive Functions involving autistic children. The first presenter will summarize new findings about Unit, Institut Pasteur, Paris, France, (14)Department of Forensic and the effectiveness of common intervention approaches (i.e., behavioral, develop- Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and mental, naturalistic developmental behavioral interventions [NDBIs]) for supporting Neuroscience, King’s College London, London, United Kingdom, (15) development in this population, taken from a comprehensive meta-analysis known Department of Cognitive Neuroscience, Donders Institute for Brain, as Project AIM (Autism Intervention Meta-analysis; Sandbank et al., 2020), as well Cognition and Behaviour, Radboud University Nijmegen Medical Centre, as the extent to which intervention effectiveness varies by different intervention Nijmegen, Netherlands, (16)Institut Pasteur, Paris, France, (17)Institut parameters, such as implementer and intensity. The second presenter will high- PASTEUR, Paris, France, (18)Autism Research Centre, Department of light findings from secondary analyses of this data examining participant charac- teristics that may differentially influence intervention effectiveness for supporting Psychiatry, University of Cambridge, Cambridge, United Kingdom, (19) development in important domains (i.e., play, language, adaptive behavior, etc.). Centre for Functional MRI of the Brain (FMRIB), University of Oxford, The third presenter will review findings regarding the quality of studies supporting Oxford, United Kingdom, (20)Department of Child and Adolescent different intervention approaches, and report new findings in trends in quality indi- Psychiatry, Central Institute of Mental Health, University of Heidelberg, cators over time in this literature. The final presenter will discuss ethical issues that Mannheim, Germany, (21)Department of Psychiatry, Brain Center Rudolf continue to pervade autism early childhood intervention research, namely the prev- Magnus, University Medical Center Utrecht, Utrecht, Netherlands, (22) alence of undisclosed conflicts of interest (COIs), in both group and single-case Autism Research and Intervention Center of Excellence Frankfurt, design studies. Each presenter will highlight questions that remain unanswered, Department of Child and Adolescent Psychiatry, Psychosomatics and options for improving the quality and utility of future research. and Psychotherapy, University Hospital Frankfurt, Goethe University, Frankfurt, Germany, (23)Department of Child and Adolescent Psychiatry, University Hospital, Goethe University, Frankfurt am Main, Frankfurt, Germany, (24)EU-AIMS Organization, London, United Kingdom

47 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

3:00 216.001 The Influence of Intensity and Implementer on Intervention 3:20 217.002 Brain Response to Gabab Receptor Modulation with Effectiveness M. Sandbank1, S. Crowley2, K. Bottema-Beutel2 and T. G. Arbaclofen in Adults with and without ASD G. M. McAlonan1, Q. Huang2, Woynaroski3, (1)The University of Texas at Austin, Austin, TX, (2)Lynch A. C. Pereira3, S. Leaman2, H. E. Velthuis3, N. M. Wong4, C. L. Ellis5, School of Education, Boston College, Chestnut Hill, MA, (3)Department M. Dimitrov6, M. F. Ponteduro2, D. Batalle7, J. Ahmad5, D. Murphy8 and of Hearing and Speech Sciences, Vanderbilt University Medical Center, E. Daly8, (1)NIHR-Biomedical Research Centre for Mental Health at the Nashville, TN Institute of Psychiatry, Psychology and Neuroscience, South London and Maudsley Foundation NHS Trust, London, United Kingdom, (2)King’s 3:20 216.002 Participant Characteristics That Influence the Effectiveness College London, London, United Kingdom, (3)Department of Forensic 1 2 3 of Intervention T. G. Woynaroski , M. Sandbank , K. Bottema-Beutel and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology 3 and S. Crowley , (1)Department of Hearing and Speech Sciences, and Neuroscience, King’s College London, London, United Kingdom, Vanderbilt University Medical Center, Nashville, TN, (2)The University (4)Biomedical Research Centre for Mental Health at the Institute of of Texas at Austin, Austin, TX, (3)Lynch School of Education, Boston Psychiatry, Psychology and Neuroscience and South London and College, Chestnut Hill, MA Maudsley NHS Foundation Trust, London, United Kingdom, (5)Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology 3:40 216.003 The Quality of Studies in Autism Early Childhood and Neuroscience, King’s College London, London, United Kingdom, Intervention Research S. Crowley1, M. Sandbank2, K. Bottema-Beutel1 (6)Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, and T. G. Woynaroski3, (1)Lynch School of Education, Boston College, Psychology and Neuroscience, King’s College London, London, Chestnut Hill, MA, (2)The University of Texas at Austin, Austin, TX, (3) United Kingdom, (7)Department of Forensic and Neurodevelopmental Department of Hearing and Speech Sciences, Vanderbilt University Sciences, and the Sackler Institute for Translational Neurodevelopment, Medical Center, Nashville, TN Institute of Psychiatry, Psychology and Neuroscience, King’s College 4:00 216.004 Ethical Concerns in Autism Research: Pervasive London, London, United Kingdom, (8)Department of Forensic and Undisclosed Conflicts of Interest K. Bottema-Beutel and S. Crowley, Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Lynch School of Education, Boston College, Chestnut Hill, MA Neuroscience, King’s College London, London, United Kingdom 3:40 217.003 Tactile Perception As a Potential Target for Gabaergic Intervention in Neurodevelopmental Disorders N. A. Puts1, J. L. He1, G. Panel Session Oeltzschner2, E. Wodka3, R. A. Edden2 and S. H. Mostofsky3, (1)Institute Interventions - Pharmacologic of Psychiatry, Psychology and Neuroscience, London, United Kingdom, Panel 217 - Mechanistic Biomarkers of E:I Dynamics and (2)Russell H. Morgan Department of Radiology and Radiological Nextgen Clinical Trials with Arbaclofen Science, The Johns Hopkins University School of Medicine, Baltimore, MD, (3)Center for Autism and Related Disorder, Kennedy Krieger 3:00 PM - 5:00 PM Institute, Baltimore, MD

Panel Chair: P. Wang, Simons Foundation / CRA, New York, NY

Arbaclofen is a GABA-B receptor agonist and is hypothesized to have beneficial effects in ASD by moderating excitatory:inhibitory dynamics. It shows rescue effects in multiple animal models of ASD, from the cellular to the behavioral level, but a first generation of clinical trials failed on their primary endpoints. These trials were limited by their failure to include biomarker measures of drug action, and by their broad inclusion criteria. In fact, post-hoc analyses of the trial data suggested that the drug might be beneficial in a subset of individuals. In this symposium, we will present the results of new, clinical biomarker studies that explore the effects of arbaclofen on sensory phenomena that are known to be mediated by the dynamic interplay of excitatory and inhibitory neurotransmission. These investigations use psychophysical, electrophysiologic, and neuroimaging experimental approaches. In addition, we will describe two new clinical trials of arbaclofen that incorporate refinements in trial design, to better address placebo effects and to account for the restricted range of sensitivity of standard outcome measures. Together, these mechanistic biomarkers and refinements in “NextGen” clinical trial design have potential to identify a subset of individuals with ASD for whom arbaclofen may be beneficial. 3:00 217.001 GABA-B Gating of Perceptual Awareness during Binocular Rivalry C. Robertson1, J. Mentch2, A. Spiegel3 and C. Ricciardi4, (1) Psychological and Brain Sciences, Dartmouth College, Hanover, NH, (2)Massachusetts Institute of Technology, Cambridge, MA, (3)Johns Hopkins University, Baltimore, MD, (4)MIT, Cambridge, MA

48 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

4:00 217.004 Clinical Trial Design for Evaluating Arbaclofen in Children Panel Session 1 1 2 and Adolescents with ASD C. Arango , M. Parellada , M. Palmer , Medical and Psychiatric Comorbidity V. Parlatini3, A. San Jose Caceres4, R. Delorme5, E. J. Jones6, J. R. Parr7, E. Anagnostou8, D. Murphy9, E. Loth9, P. Wang10, T. Charman11, Panel 218 - The Interpretation and Impacts of Traumatic Life A. Strydom3, S. Antoun12, A. Blazquez Hinojosa13, T. Bourgeron14, M. Events for ASD Adults Burdeus15, C. H. Chatham16, R. Calvo Escalona13, T. Del Bianco17, S. 3:00 PM - 5:00 PM Hydros18, E. Huijsman19, F. Kaguelidou12, A. Kaushik18, M. L. Lazaro20, M. Lindemann21, L. Mason6, M. Megalogeni3, F. Mgaieth2, A. Moscoso12, D. Nobbs21, M. Punukollu22, P. Shah18, P. Singappuli18, A. C. Stanfield23, Panel Chair: F. Rumball, Adult ASD Assessment Service and M. Slot19, E. Urbiola1, K. Walton-Bowen24, I. Winter-van Rossum19, A. Transforming Care Team, Oxleas NHS foundation trust, Kent, United Ulloa25, J. Castro-Fornieles20, M. Carnicer1 and L. Sipos-Galvez1, (1) Kingdom Hospital General Universitario Gregorio Marañón, Madrid, Spain, (2)King’s College London, Institute of Psychiatry, Psychology and Discussant: F. Happé, Social, Genetic and Developmental Psychiatry Neuroscience, London, United Kingdom, (3)King’s College London, Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s London, United Kingdom, (4)Forensic and Neurodevelopmental College London, London, United Kingdom Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom, (5)Excellence centre for Individuals with ASD are known to be at increased risk of experiencing adverse Autism and Neurodevelopmental disorders, Paris, France, (6)Centre life events, such as peer victimisation. It has been posited that core features of for Brain and Cognitive Development, Birkbeck, University of London, ASD may confer a heightened risk of exposure to traumatic life events and the London, United Kingdom, (7)Population Health Sciences Institute, development mental health difficulties post-trauma. However, such definitions of Newcastle University, Newcastle upon Tyne, United Kingdom, (8)Autism ‘trauma’ are limited to the neurotypical experience of life-threatening events. An Research Center, Bloorview Research Institute, Holland Bloorview Kids emerging body of research suggests that a range of life events may be interpreted Rehabilitation Hospital, Toronto, ON, Canada, (9)Department of Forensic as traumatic, and increase risk of mental health difficulties such as posttraumatic stress disorder (PTSD), depression and anxiety disorders. The aim of this session and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology is to explore the nature of trauma and its impact on adults with ASD and those and Neuroscience, King’s College London, London, United Kingdom, with high ASD traits, elucidating individual interpretations of what constitutes a (10)Simons Foundation, New York, NY, (11)Department of Psychology, traumatic life event, risk and resilience mechanisms associated with post-trauma Institute of Psychiatry, Psychology and Neuroscience, King’s College mental health outcomes, and the types of coping strategies and interventions that London, London, United Kingdom, (12)Institut Pasteur, Paris, France, may help or hinder recovery for trauma-exposed ASD adults. Talks will focus on a (13)Hospital Clinic, Barcelona, Spain, (14)Human Genetics and Cognitive range of stressful and traumatic experiences, from traditional to atypical traumas, Functions, Institut Pasteur, Paris, France, (15)Instituto de Investigación as well as elucidating the impact of the COVID-19 pandemic on adults with ASD. Sanitaria Gregorio Marañón, Madrid, Spain, (16)Neuroscience and Rare Diseases (NRD), Roche Pharma Research and Early Development, 3:00 218.001 Risk Mechanisms for Posttraumatic Stress Disorder in Autism Spectrum Disorder Adults: Exploring the Ehlers and Clark Roche Innovation Center, New York, CA, (17)Centre for Brain and 1 2 3 Cognitive Development, Birkbeck University of London, London, United Model of PTSD F. Rumball , N. Grey and F. Happé , (1)Adult ASD Kingdom, (18)NIHR Maudsley Biomedical Research Centre, London, Assessment Service and Transforming Care Team, Oxleas NHS United Kingdom, (19)University Medical Center Utrecht, Utrecht, foundation trust, Kent, United Kingdom, (2)Sussex Partnership NHS Netherlands, (20)CIBERSAM, Barcelona, Spain, (21)Roche Pharma Trust, Sussex, United Kingdom, (3)Social, Genetic and Developmental Research and Early Development. Roche Innovation Center Basel, Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, Hoffmann-La Roche, Basel, Switzerland, (22)University of Glasgow, King’s College London, London, United Kingdom Glasgow, United Kingdom, (23)Division of Psychiatry, University 3:20 218.002 Traumatic Life Experiences and Post-Traumatic Stress of Edinburgh, Edinburgh, United Kingdom, (24)Clinical Research Symptoms in Older Adults with High Autistic Traits G. R. Stewart1, Associates, LLC, New York, NY, (25)2Instituto de Investigación Sanitaria R. A. Charlton2 and F. Happé1, (1)Social, Genetic and Developmental Gregorio Marañón, Madrid, Spain Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom, (2)Psychology, Goldsmiths University of London, London, United Kingdom

3:40 218.003 Impact of the COVID-19 Pandemic on Mental Health in Autistic and Non-Autistic Adults J. Maljaars1,2,3, D. Spain4, K. Evers1,2,3, F. Rumball5, F. Happé6 and I. Noens1,2, (1)Leuven Autism Research (LAuRes), KU Leuven, Leuven, Belgium, (2)Parenting and Special Education Research Unit, KU Leuven, Leuven, Belgium, (3)Child Psychiatry, UPC Z.org KU Leuven, Leuven, Belgium, (4)King’s College London, Institute of Psychiatry,, London, UNITED KINGDOM, (5) Adult ASD Assessment Service and Transforming Care Team, Oxleas NHS foundation trust, Kent, United Kingdom, (6)Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom

49 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

4:00 218.004 A Qualitative Exploration of Traumatic Life Experiences Panel Session 1 2 Leading to PTSD Symptoms in ASD Adults A. Kumar , F. Rumball and Other - Multiple Topic Areas F. Happé3, (1)South London and Maudsley NHS foundation trust; King’s College London, London, United Kingdom, (2)Adult ASD Assessment Panel 220 - Mechanism in Autism Intervention – Identifying Service and Transforming Care Team, Oxleas NHS foundation trust, Active Ingredients and Developing Innovative Practice Kent, United Kingdom, (3)Social, Genetic and Developmental Psychiatry 3:00 PM - 5:00 PM Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom Panel Chair: J. Green, University of Manchester, Manchester, United Kingdom of Great Britain and Northern Ireland Panel Session Discussant: C. Kasari, University of California, Los Angeles, Los Angeles, Neuroimaging CA Panel 219 - Etiologies of Atypical Prenatal Development in Autism Spectrum Disorder and Implications for Early The autism intervention field is characterised by many studies of bespoke inter- Treatment ventions with often seemingly overlapping procedures, tested individually on often quite small samples. How can we bring together the positive elements from all 3:00 PM - 5:00 PM this work to progress rigorously validated common interventions that can be used flexibly in different contexts? There are many putative candidates for ‘active ingre- dients’ of therapy in autism, but demonstrating their validity and specificity requires Panel Chair: Y. Ben-Ari, Neurochlore, Marseille, France a mechanistic approach. There have been unfortunately few robust mechanism studies to date in autism intervention science. This symposium will aim to inspire Autism Spectrum Disorders (ASD) are “born” in utero by environmental and genet- more use of mechanism designs by showing how they can contribute to refining ic pathogenic events. The link between initial pathogenic insults and the clinical intervention process, contribute to progress by identifying common active ele- manifestations years later is complex as it takes place in a particularly dynamic ments across apparently different intervention models, and eventually developing process with all ionic currents and molecular processes engaged in profound mod- effective modular elements for flexible use in different settings. Leaders in clinical ifications. Indeed, initial pathogenic insults impacts brain development and growth, science and trial methodology will discuss approaches to intervention for core alters developmental sequences leading to misplaced/misconnected neuronal autism symptoms and co-occurring mental health conditions across the age range; circuits and miswired connectivity that both perturb the operation of behaviorally the potential but also challenges for identifying active ingredients and the pros and relevant oscillations and prevent the interactions needed to develop social interac- cons of implementing modular intervention. tions in the first postnatal years. These changes are therefore the direct cause of the disorder and a possible target of treatments using agents that selectively block 3:00 220.001 Challenges and Solutions for Assessing Treatment-Effect these alterations. A multidisciplinary approach devoted to determine these chang- Mechanisms for Modular Interventions R. Emsley, Department of es during pregnancy, birth and early post-natal life is therefore mandatory. Phys- Biostatistics & Health Informatics, Kings College, London, United iological, molecular, genetic and immunological features have to be determined Kingdom as initial insults impact all of these parameters. Therefore, to understand and treat ASD and other neurodevelopmental disorders, a dynamic and distinctive look on 3:25 220.002 A Mechanistic Approach to Early Social Communication development is needed. This panel will bring a fresh and novel developmental Intervention in Autism – Findings and Possibilities J. Green, University of view on the origin, impact and treatment of ASD. Manchester, Manchester, United Kingdom of Great Britain and Northern 3:00 219.001 ASD Living Biology: The “When, What and How” of ASD Ireland Prenatal Beginnings E. Courchesne, University of California San Diego, 3:50 220.003 Developing a Modular Intervention for School-Aged Children San Diego, CA Addressing Autism-Related Challenges and Mental Health Needs J. J. 3:20 219.002 Harnessing the Power of Advanced Fetal MRI to Wood, Human Development & Psychology, University of California, Los Understanding the Prenatal Origins of ASD C. Limperopoulos, Angeles, Los Angeles, CA Radiology, Neurology, Pediatrics, Children’s National Health System, Washington, DC

3:40 219.003 Maternal Autoantibodies As a Pathway to ASD J. Van de Water, MIND Institute, University of California, Davis, Davis, CA

4:00 219.004 Early Prognosis of ASD through Machine Learning Analysis of Pregnancy and Birth Data Y. Ben-Ari, Neurochlore, Marseille, France

50 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

Panel Session Oral Session Service Delivery/Systems of Care Adult Outcome: Medical, Cognitive, Behavioral, Social, Panel 221 - Bridging the Gap: Mitigating Barriers to Autism Adaptive, Vocational Service Access in Rural Populations Oral 315 - Contributing Factors and Pathways to Autistic 3:00 PM - 5:00 PM Adult Mental, Behavioral and Social Outcomes 5:15 PM - 6:10 PM Panel Chair: H. E. Morton, Binghamton University, Binghamton, NY, Geisinger, Lewisburg, PA 5:15 315.001 Predicting Uncertain Multi-Dimensional Adulthood Outcomes from Childhood and Adolescent Data in People Referred to Autism 1 2 2 1 Discussant: Z. Warren, Vanderbilt University Medical Center, Nashville, Services G. Forbes , C. Lord , R. Elias and A. Pickles , (1)King’s TN College London, Institute of Psychiatry, Psychology and Neuroscience, London, United Kingdom, (2)University of California, Los Angeles, Los Families in rural communities experience barriers to accessing diagnostic eval- Angeles, CA uations and evidence-based interventions for Autism Spectrum Disorder (ASD). 5:27 315.002 Sources of Sexuality and Relationship Education for Adults These include high service cost, lack of autism-specific service providers, and a far 1,2 1 1 geographic travel distance to access services. This panel presents findings from a in the United States E. T. Crehan , J. Rocha and S. R. Dufresne , (1) variety of novel delivery methods that seek to increase access to autism services Eliot-Pearson Department of Child Study & Human Development, Tufts in rural areas. The first paper identifies predictors of parent follow-through with a University, Medford, MA, (2)Department of Psychiatry, AARTS Center, pediatrician referral for neurodevelopmental assessment at a rural hospital clinic Rush University Medical Center, Chicago, IL and examines the impact of a virtual intake appointment to increase retention. The second paper presents a novel training program for early intervention providers 5:39 315.003 Is Camouflaging Autistic Traits Associated with Defeat, in rural locations to increase recognition of ASD symptoms and facilitate teledi- Entrapment and Suicidal Thoughts? Expanding the Integrated agnostic evaluation. The third paper describes use of a mobile autism clinic and Motivational Volitional Model of Suicide. S. A. Cassidy1,2,3, E. telehealth modalities for ASD assessment and parent psychoeducation in a rural McLaughlin1, R. McGranaghan1, M. K. Pelton4, S. Baron-Cohen2, R. community. The fourth paper reports on implementation of a consultation inter- O’Connor5 and J. Rodgers3, (1)School of Psychology, University of vention to increase use of evidence-based practices for ASD in rural schools. Dr. Nottingham, Nottingham, United Kingdom, (2)Autism Research Centre, Zachary Warren (discussant) will draw on his expertise adapting and implementing Department of Psychiatry, University of Cambridge, Cambridge, United evidence-based autism services in a rural community to make recommendations Kingdom, (3)Population Health Sciences Institute, Newcastle University, for application of novel delivery methods to reduce barriers to care and directions Newcastle upon Tyne, United Kingdom, (4)Coventry University, for future research. Coventry, United Kingdom, (5)University of Glasgow, Glasgow, United 3:00 221.001 Barriers to Engagement with the Neurodevelopmental Kingdom Diagnostic Assessment: Predictors of Retention in a Rural Hospital Clinic 5:51 315.004 The Role of Social Competence and Quality Interactions H. E. Morton1,2, L. Walsh2, D. Welsh2, M. Mitchel2, H. R. Fisher2, C. M. on Autism Stigma M. Sait1, N. E. Scheerer2, R. A. Stevenson3, T. Q. Taylor2 and S. M. Myers2, (1)Binghamton University, Binghamton, NY, (2) Boucher4 and G. Iarocci4, (1)1151 Richmond St, Western University, Geisinger, Lewisburg, PA London, ON, Canada, (2)Psychology, Western University, London, ON, 3:20 221.002 Engaging Part C Services Providers As Facilitators of Early Canada, (3)Brain and Mind Institute, University of Western Ontario, Identification and Evidence-Based Intervention Services for Children London, ON, Canada, (4)Psychology, Simon Fraser University, Burnaby, with ASD in Rural and Under Resourced Communities A. Stainbrook1, BC, Canada M. Fleck2, K. Simcoe1, L. Corona3, L. Wagner4, A. S. Weitlauf5, J. F. Hine4,6, P. Juárez1 and Z. Warren4, (1)Vanderbilt University Medical Center- Treatment and Research Institute for Autism Spectrum Disorder, Oral Session Nashville, TN, (2)Vanderbilt University Medical Center- Treatment and Animal Models Research Institute for Autism Spectrum Disorder, Jackson, TN, (3) Oral 316 - Perturbing Genetic and Environmental Autism Risk Vanderbilt University Medical Center - Treatment and Research Institute for Autism Spectrum Disorder, Nashville, TN, (4)Vanderbilt University Factors in Mouse Models Medical Center, Nashville, TN, (5)Vanderbilt Kennedy Center, Vanderbilt 5:15 PM - 6:10 PM University Medical Center, Nashville, TN, (6)Dept of Pediatrics, Vanderbilt University Medical Center- Treatment and Research Institute 5:15 316.002 Generating a New ASD/ID Mouse Model By Deleting for Autism Spectrum Disorder, Nashville, TN Epigenetic Factor ASH1L in Developing Brains J. He1, Y. Gao2, N. Duque-Wilckens2, M. B. Aljazi2, G. I. Mias2 and A. J. Robison2, (1) 3:40 221.003 Novel Methods of Delivering Autism Assessment and Biochemistry and Molecular Biology, Michigan State University, East Psychoeducation in Rural Southwest Virginia: A Pilot Study J. R. Lansing, MI, (2)Michigan State University, East Lansing, MI Bertollo1,2 and A. Scarpa1,2, (1)Virginia Polytechnic Institute and State University, Blacksburg, VA, (2)Virginia Tech Autism Clinic & Center for Autism Research, Blacksburg, VA

4:00 221.004 Compass: Considerations for Implementing an Evidence- Based Consultation Intervention in Rural Schools L. N. Ogle1, L. A. Ruble1 and J. H. McGrew2, (1)Special Education, Ball State University, Muncie, IN, (2)Psychology, Indiana University - Purdue University Indianapolis, Indianapolis, IN

51 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

5:27 316.003 Influence of Maternal Genetics on Fetal Neurodevelopment Oral Session in a Murine Model for PTEN-Associated Autism Spectrum Disorder R. Medical and Psychiatric Comorbidity Jaini1,2, M. R. Wolf1, Q. Yu1, T. W. Frazier3 and C. Eng1,4,5, (1)Genomic Medicine, Cleveland Clinic Lerner Research Institute, Cleveland, OH, Oral 318 - Exploring the Origins of Poor Mental Health in (2)Comprehensive Cancer Center, Case Western Reserve University Autism School of Medicine, Cleveland, OH, (3)Psychology, John Carrol 5:15 PM - 6:10 PM University, Cleveland, OH, (4)Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, (5)Department of Genetics 5:15 318.001 Behavioral and Neural Mechanisms of Trauma and Genome Sciences, Case Western Reserve University, Cleveland, Symptomatology in Youth with Autism Spectrum Disorder E. T. Wood, OH J. Melbourne, S. A. Green, S. Y. Bookheimer and M. Dapretto, Dept of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA Oral Session Interventions - Non-pharmacologic - School-Age, Adolescent, 5:27 318.002 Clinical Characteristics of Autistic Youth in the SPARK Cohort with a Co-Occurring Schizophrenia Diagnosis A. Jutla1 and Adult J. Veenstra-VanderWeele2, (1)1051 Riverside Drive, New York State Oral 317 - Behavioral Treatments for ASD Psychiatric Institute / Columbia University, New York, NY, (2)Psychiatry, 5:15 PM - 6:10 PM New York State Psychiatric Institute / Columbia University, New York, NY 5:39 318.003 The Development of the Personalised Anxiety Interview 5:15 317.001 Effects of Short-Term Low-Intensity Early Start Denver Schedule - Autism (PAIS-A) and What the Tool Can Tell Us about the Model on Young Children with Autism Spectrum Disorder in Different 1 2 3 1 2 3 4 Anxiety Profiles of Autistic Adults S. Brice , P. Welsh , M. Freeston , J. Cognitive Ability Levels T. L. Lin , C. H. Chiang , S. Y. Ho , H. C. Wu 1,2 1,2 1 1 3 R. Parr , B. Ingham , A. LeCouteur and J. Rodgers , (1)Population and C. C. Wong , (1)Research Center for Education and Mind Sciences, Health Sciences Institute, Newcastle University, Newcastle upon Tyne, National Tsing Hua University, Hsinchu City, Taiwan, (2)Department of United Kingdom, (2)Cumbria, Northumberland, Tyne and Wear NHS Psychology, National Chengchi University, Taipei City, Taiwan, (3)Child Foundation Trust, Newcastle upon Tyne, United Kingdom, (3)School Developmental Assessment & Intervention Center, Zhongxing Branch of of Psychology, Newcastle University, Newcastle upon Tyne, United Taipei City Hospital, Taipei City, Taiwan, (4)Department of Rehabilitation, Kingdom Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City, Taiwan

5:27 317.002 Caregiver Ndbi Strategy Use and Language Input Supports Oral Session Structurally-Specific Lexical Diversity in Minimally-Verbal Children with Other - Multiple Topic Areas Autism E. Clark-Whitney, C. B. Klein, A. Lemelman, J. Winter and S. Oral 319 - Functional and Anatomical Neuroimaging Markers H. Kim, Psychiatry, Center for Autism and the Developing Brain, White Plains, NY of Autism II 5:15 PM - 6:10 PM 5:39 317.003 National Clearinghouse on Autism Evidence & Practice: Examining the Participation of Individuals with ASD across Racial and 5:15 319.001 Cortico-Cerebellar Functional Connectivity in 9-Month-Old 1 Ethnic Groups in High Quality Intervention Studies N. S. McIntyre , J. R. Infants at High and Low Familial Risk for Autism Predicts Later Socio- 2 3 2 4 Steinbrenner , L. F. Rentschler , K. Hume and S. L. Odom , (1)School Communicative Developmental Trajectories N. J. Okada1, J. Liu2, T. of Communication Sciences and Disorders, University of Central Florida, Tsang2, K. K. Cummings3, J. Jung1, G. Patterson4, S. A. Green1, S. Y. Orlando, FL, (2)Frank Porter Graham Child Development Institute, Bookheimer1, S. Jeste2 and M. Dapretto1, (1)Dept of Psychiatry and University of North Carolina at Chapel Hill, Chapel Hill, NC, (3)School of Biobehavioral Sciences, University of California, Los Angeles, Los Education, University of North Carolina - Chapel Hill, Chapel Hill, NC, (4) Angeles, CA, (2)University of California, Los Angeles, Los Angeles, CA, Frank Porter Graham Child Development Institute, University of North (3)Semel Institute of Neuroscience and Human Behavior, University Carolina at Chapel Hill, San Diego, CA of California, Los Angeles, Los Angeles, CA, (4)University of Denver, Denver, CO 5:51 317.004 Critical Time Points When Accessing Diagnosis and Early Treatment Among Children with ASD: A Comparison between 5:27 319.002 Resting Frontostriatal and Frontoparietal Functional 1 Immigrant Children and Children of US-Born Parents Y. Xu , L. A. Connectivity and Inhibitory Control Ability in Autism Spectrum Disorder 2 3 4 5 Bilaver , K. Acharya , R. L. Dodds and S. Magaña , (1)Disability and S. E. Kelly1, J. Bartolotti2, K. E. Unruh2 and M. W. Mosconi3, (1)Clinical Human Development, University of Illinois at Chicago, Chicago, IL, (2) Child Psychology Program, Schiefelbusch Institute for Life Span Studies, Pediatrics, Northwestern University, Chicago, IL, (3)University of Illinois Kansas Center for Autism Research and Training (KCART), University at Chicago, Chicago, IL, (4)Special Education & Counseling, California of Kansas, Lawrence, KS, (2)Kansas Center for Autism Research and State University Los Angeles, Los Angeles, CA, (5)Steve Hicks School of Training (K-CART), University of Kansas, Lawrence, KS, (3)Clinical Social Work, University of Texas at Austin, Austin, TX Child Psychology Program, Schiefelbusch Institute for Life Span Studies, University of Kansas, Lawrence, KS

52 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

5:39 319.003 Do Shapes Have Feelings? Examining Social Attribution 5:27 320.002 Sex Differences in Looking Trends in Autistic Individuals: A in Children with Autism Spectrum Disorder and Attention Deficit Report from the EU-AIMS LEAP Cohort Using Dynamic Videos T. Del Hyperactivity Disorder Using fMRI M. M. Vandewouw1,2,3,4, K. Safar4, Bianco1, L. Mason2, M. C. Lai3,4,5, J. Tillmann6, E. Loth7, R. Haartsen1, J. S. Mossad5, J. Lu4, J. P. Lerch1,6,7, E. Anagnostou2,8,9 and M. J. K. Buitelaar8, D. Murphy7, T. Charman9, M. Johnson10, E. J. Jones2 and L. Taylor10,11,12,13, (1)Program in Neuroscience & Mental Health, The Hospital G. EU-AIMS11, (1)Centre for Brain and Cognitive Development, Birkbeck for Sick Children, Toronto, ON, Canada, (2)Autism Research Center, University of London, London, United Kingdom, (2)Centre for Brain Bloorview Research Institute, Holland Bloorview Kids Rehabilitation and Cognitive Development, Birkbeck, University of London, London, Hospital, Toronto, ON, Canada, (3)Institute of Biomedical Engineering, United Kingdom, (3)Autism Research Centre, Department of Psychiatry, University of Toronto, Toronto, ON, Canada, (4)Diagnostic Imaging, University of Cambridge, Cambridge, ON, United Kingdom, (4)The Hospital for Sick Children, Toronto, ON, Canada, (5)Psychology, Margaret and Wallace McCain Centre for Child, Youth and Family Mental Hospital for Sick Children, Toronto, ON, Canada, (6)Wellcome Centre Health, Centre for Addiction and Mental Health, Toronto, ON, Canada, for Integrative Neuroimaging (WIN), University of Oxford, Oxford, ON, (5)Department of Psychiatry, National Taiwan University Hospital United Kingdom, (7)Department of Medical Biophysics, University of and College of Medicine, Taipei, Taiwan, (6)Institute of Psychiatry, Toronto, Toronto, ON, Canada, (8)Institute of Medical Science, University Psychology and Neuroscience, King’s College London, London, of Toronto, Toronto, ON, Canada, (9)Program in Neuroscience & Mental United Kingdom, (7)Department of Forensic and Neurodevelopmental Health, The Hospital for Sick Children Research Institute, Toronto, ON, Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s Canada, (10)Program in Neuroscience & Mental Health, The Hospital College London, London, United Kingdom, (8)Department of Cognitive for Sick Childre, Toronto, ON, Canada, (11)Department of Psychology, Neuroscience, Donders Institute for Brain, Cognition and Behaviour, University of Toronto, Toronto, ON, Canada, (12)Diagnostic Imaging, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, The Hospital for Sick Children, Toronto, ON, Canada, (13)Department of (9)Department of Psychology, Institute of Psychiatry, Psychology and Medical Imaging, University of Toronto, Toronto, ON, Canada Neuroscience, King’s College London, London, United Kingdom, (10) Department of Psychology, University of Cambridge, Cambridge, United 5:51 319.004 Genetic and Environmental Influences on Brain Structure Kingdom, (11)EU-AIMS Organization, London, United Kingdom in Twins with Autism J. P. Hegarty1, J. C. Monterrey1, L. C. Lazzeroni2, S. C. Cleveland1, J. M. Phillips1, J. F. Hallmayer1 and A. Y. Hardan1, (1) 5:39 320.003 Differential Impact of Autism on Eating Problems in Females Psychiatry & Behavioral Sciences, Stanford University, Stanford, CA, (2) and Males – a Co-Twin Control Study K. Lundin1, J. Neufeld2, J. Biomedical Data Science, Stanford University, Stanford, CA Isaksson1 and S. Bolte3, (1)Karolinska Institutet, Stockholm, Sweden, (2) Center of Neurodevelopmental Disorders (KIND), Centre for Psychiatry Research; Department of Women’s and Children’s Health, Karolinska Oral Session Institutet, & Stockholm Health Care Services, Region Stockholm, Other - Multiple Topic Areas Srockholm, Sweden, (3)Center of Neurodevelopmental Disorders (KIND), Centre for Psychiatry Research; Department of Women’s and Children’s Oral 320 - Sex Differences in Autistic Behavior Phenotypes Health, Karolinska Institutet, & Stockholm Health Care Services, Region 5:15 PM - 6:10 PM Stockholm, Stockholm, Sweden

5:51 320.004 Friend Matters: Autistic Girls Talk More about Friends during 5:15 320.001 Investigating Early Sex Differences in Language in Infants at 1,2 1 1 1 Diagnostic Interviews M. L. Cola , L. D. Yankowitz , K. G. Tena , S. Increased Familial Risk of Autism Spectrum Disorders J. M. Hampton , 1 3 1 1 4 2 3 4 5 Plate , L. Bateman , A. S. Russell , C. J. Zampella , L. S. Cubit , J. T. St. John , C. A. Burrows , R. Grzadzinski , J. Parish-Morris , L. 1 1 1 MacIntyre6, S. Torres-Gomez7, J. T. Elison8, K. Botteron9, S. R. Dager10, Pandey , R. T. Schultz and J. Parish-Morris , (1)Center for Autism A. M. Estes11, H. C. Hazlett12, R. T. Schultz5, L. Zwaigenbaum13, J. Research, Children’s Hospital of Philadelphia, Philadelphia, PA, (2)PsyD Piven14, J. N. Constantino9, N. Marrus9 and .. The IBIS Network15, (1) Doctoral Program, LaSalle University, Philadelphia, PA, (3)The Center Washington University School of Medicine in St. Louis, St. Louis, MO, for Autism Research/CHOP, Philadelphia, PA, (4)Clinical and Social (2)University of Washington, Seattle, WA, (3)Pediatrics, University of Sciences in Psychology, University of Rochester, Rochester, NY Minnesota, Minneapolis, MN, (4)University of North Carolina Chapel Hill, Chapel Hill, NC, (5)Center for Autism Research, Children’s Hospital of Philadelphia, Philadelphia, PA, (6)McGill Centre for Integrative Neuroscience, Montreal Neurological Institute, McGill University, Montreal, QC, Canada, (7)McGill Centre for Integrative Neuroscience, Montreal Neurological Institute, Montreal, QC, Canada, (8)University of Minnesota, Minneapolis, MN, (9)Washington University School of Medicine, St. Louis, MO, (10)Radiology, University of Washington, Seattle, WA, (11)Speech and Hearing Sciences, University of Washington, Seattle, WA, (12)*co-senior author, University of North Carolina, Chapel Hill, NC, (13)University of Alberta, Edmonton, AB, Canada, (14)*Co-senior author, University of North Carolina, Chapel Hill, NC, (15)University of North Carolina, Chapel Hill, NC

53 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

Oral Session Oral Session Sensory, Motor, and Repetitive Behaviors and Interests Cognition: Attention, Learning, Memory Oral 321 - Developmental Patterns and Subgroups Oral 322 - Behavior, Gaze, and Biomarkers 5:15 PM - 6:10 PM 6:15 PM - 7:10 PM

5:15 321.001 Comprehensive Assessment of Visual Perceptual Skills 6:15 322.001 Altered Locus Coeruleus Activity during Reaction Time in Autism Spectrum Disorder A. DiCriscio, J. Smith and V. Troiani, Performance in Autism N. Bast1, S. Boxhoorn2, L. Polzer3, B. Helfer4, Geisinger Autism & Developmental Medicine Institute, Lewisburg, PA H. Super5, C. Klein6 and C. M. Freitag7, (1)Department of Child and Adolescent Psychiatry and Psychotherapy, University Hospital Frankfurt, 5:27 321.002 Measurement of Subcategories of Restricted and Repetitive Frankfurt, Germany, (2)Department of Child and Adolescent Psychiatry, Behaviors across Age and Intellectual Functioning in a Large ASD Goethe University Frankfurt, Frankfurt, Germany, (3)Goethe University 1 2 3 4 Sample J. Tillmann , S. Ueckert , H. Baumann , F. Bolognani , T. Frankfurt / Department of Child and Adolescent Psychiatry, Frankfurt, 5 6 7 8 9 Charman , C. H. Chatham , X. Chen , D. V. Crawley , D. W. Evans , Germany, (4)Imperial College London, London, United Kingdom, (5) 10 11 12 13 14 T. W. Frazier , A. Y. Hardan , E. Hollander , M. Kjellson , E. Loth , Catalan Institution for Research and Advanced Studies, Barcelona, 15 1 16 17 18 D. S. Murray , L. Murtagh , M. Uljarevic , P. Wang and J. F. Hipp , Spain, (6)Department of Child and Adolescent Psychiatry, University (1)Neuroscience and Rare Diseases (NRD), Roche Pharma Research of Freiburg, Freiburg, Germany, (7)Autism Research and Intervention and Early Development, Roche Innovation Center, Basel, Switzerland, Center of Excellence Frankfurt, Department of Child and Adolescent (2)University of Uppsala, Uppsala, Sweden, (3)F. Hoffmann-La Roche Psychiatry, Psychosomatics and Psychotherapy, University Hospital Ltd, Basel, Switzerland, (4)Axial Therapeutics, Inc., Basel, Switzerland, Frankfurt, Goethe University, Frankfurt, Germany (5)Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom, (6) 6:27 322.002 Attention Allocation during Visual Exploration Tasks in Neuroscience and Rare Diseases (NRD), Roche Pharma Research School-Age Children with ASD: Autism Biomarkers Consortium for and Early Development, Roche Innovation Center, New York, CA, (7) Clinical Trials M. Xie1, A. Naples2, G. Hellemann3, D. Senturk3, C. Sugar4, Roche Pharma Research and Early Development, Roche Innovation S. J. Webb5, G. Dawson6, S. Jeste4, C. A. Nelson7, R. A. Bernier5, N. Center, Basel, Switzerland, (8)Forensic and Neurodevelopmental M. Kleinhans8, J. McPartland2 and F. Shic1, (1)Center for Child Health, Sciences, Institute of Psychiatry, Psychology and Neuroscience, Behavior and Development, Seattle Children’s Research Institute, King’s College London, London, United Kingdom, (9)Department of Seattle, WA, (2)Child Study Center, Yale University School of Medicine, Psychology, Bucknell University, Lewisburg, PA, (10)Psychology, John New Haven, CT, (3)UCLA, Los Angeles, CA, (4)University of California, Carrol University, Cleveland, OH, (11)Psychiatry & Behavioral Sciences, Los Angeles, Los Angeles, CA, (5)Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, (12)Albert Einstein College of University of Washington, Seattle, WA, (6)Department of Psychiatry and Medicine, Psychiatric Research Institute at Montefiore-Einstein, Bronx, Behavioral Sciences, Duke Center for Autism and Brain Development, NY, (13)University of Uppsala, Uppsala, Switzerland, (14)Department Durham, NC, (7)Developmental Medicine, Boston Children’s Hospital, of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Boston, MA, (8)University of Washington, Seattle, WA Psychology and Neuroscience, King’s College London, London, United Kingdom, (15)Autism Speaks, Boston, MA, (16)Department of Psychiatry 6:39 322.003 Increased Attention to the Mouth at 12 Months Predicts and Behavioral Sciences, School of Medicine, Stanford University, Language Outcomes in Infants at Low-Risk but Not Elevated-Risk for 1 1 2 1 Stanford, CA, (17)Simons Foundation, New York, NY, (18)Neuroscience ASD H. Feiner , E. Diamond , C. Banarjee , D. M. Goncalves Fortes , 1 1 1 3 1 and Rare Diseases (NRD), Pharma Research & Early Development, M. Butler , R. Foster , A. Boxberger , F. Shic , E. Brennan-Wydra , 1 1 1 1 Roche Innovation Center Basel, F. Hoffmann-La Roche AG, Basel, A. Vernetti , S. Macari , D. Lewkowicz and K. Chawarska , (1)Child Switzerland Study Center, Yale University School of Medicine, New Haven, CT, (2)University of Miami, Coral Gables, FL, (3)Center for Child Health, 5:39 321.003 Sensory Features and Associations in the Autism and Behavior and Development, Seattle Children’s Research Institute, Developmental Disabilities Monitoring Network, 2006–2014 A. V. Kirby1, Seattle, WA D. A. Bilder2, J. Davis3, L. Wiggins4, M. M. Hughes4, J. A. Hall-Lande5, L. C. Lee6, C. Kingsbury7, W. M. McMahon2 and A. V. Bakian2, (1)University 6:51 322.004 Episodic Memory Dysfunction in ASD – Is It Real? M. A. 1 1 2 3 of Utah College of Health, Salt Lake City, UT, (2)Psychiatry, University Alkan , A. Easton , D. M. Riby and T. V. Smulders , (1)Psychology, of Utah, Salt Lake City, UT, (3)Educational Psychology, University of Durham University, Durham, United Kingdom, (2)Department of Utah, Salt Lake City, UT, (4)Centers for Disease Control and Prevention, Psychology, Durham University, Durham, United Kingdom, (3)Bioscience Atlanta, GA, (5)UCEDD, University of MN, Minneapolis, MN, (6) Institute, Newcastle University, Newcastle upon Tyne, United Kingdom Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, (7)Children with Special Health Care Needs, Utah Department of Health, Salt Lake City, UT

5:51 321.004 Developmental Trajectories of Sensory Patterns from Infancy to School Age in Children with ASD and Non-ASD Conditions Y. J. Chen1, J. Sideris1, L. R. Watson2, E. Crais2 and G. T. Baranek1, (1)Chan Division of Occupational Science and Occupational Therapy, University of Southern California, Los Angeles, CA, (2)Department of Allied Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC

54 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

Oral Session 6:39 324.003 Sex Differences in Trajectories of Language Development 1 Education in Autism Spectrum Disorder and Typical Development D. Parmaksiz , S. Koirala2, S. Yuan3, E. Kushner4, S. Shultz5, A. Klin5, C. Klaiman5, W. Oral 323 - Factors in Effective Education Jones6 and L. A. Edwards5, (1)Marcus Autism Center, Atlanta, GA, (2) 6:15 PM - 7:10 PM Department of Pediatrics, Emory University School of Medicine, Marcus Autism Center, Atlanta, GA, (3)Emory University School of Medicine, 6:15 323.001 Supporting Paraprofessionals Use of Ebps with Autistic Marcus Autism Center, Atlanta, GA, (4)Emory University, Marcus Autism Elementary School Children S. L. Odom1, A. Sam2 and J. R. Center, Atlanta, GA, (5)Marcus Autism Center, Children’s Healthcare Steinbrenner3, (1)Frank Porter Graham Child Development Institute, of Atlanta and Emory University School of Medicine, Atlanta, GA, (6) University of North Carolina at Chapel Hill, San Diego, CA, (2)Frank Pediatrics, Emory University, Atlanta, GA Porter Graham Child Development Institute, Carrboro, NC, (3)Frank Porter Graham Child Development Institute, University of North Carolina 6:51 324.004 Sex-Differences in Pain Behaviors and Related Health in 1 at Chapel Hill, Chapel Hill, NC Autistic Children and Adults in the SPARK Cohort M. D. Failla , J. I. Feldman2, C. J. Cascio3 and T. G. Woynaroski2, (1)College of Nursing, 6:27 323.002 General Education Teachers Use of Evidence-Based The Ohio State University, Columbus, OH, (2)Department of Hearing Practices: The Role of Training, Knowledge and Barriers to EBP Use. L. and Speech Sciences, Vanderbilt University Medical Center, Nashville, Barry1, J. Holloway2, S. Gallagher3 and J. McMAHON1, (1)University of TN, (3)Department of Psychiatry and Behavioral Science, Vanderbilt Limerick, Limerick, Ireland, (2)Psychology, National University of Ireland University Medical Center, Nashville, TN Galway, Galway, Ireland, (3)Department of Psychology, University of Limerick, Limerick, Ireland Oral Session 6:39 323.003 Moving Beyond Individual Factors: Environmental Support and Barriers to the Social Participation of Autistic Adolescents in Epigenetics Inclusive Education Y. L. Chen and K. P. Koenig, Occupational Therapy, Oral 325 - Beyond the Genes...Protein-Protein Interactions New York University, New York, NY and Complex Epigenetics of Autism 6:51 323.004 Characteristics Associated with Receipt of Reproductive 6:15 PM - 7:10 PM Health Education Among Students with Autism E. K. Schmidt and G. I. Orsmond, Department of Occupational Therapy, Boston University, 6:15 325.001 Integrative Genomic and Epigenomic Analysis of Autism Boston, MA Spectrum Disorder A. Starnawska1,2,3, C. Søholm Hansen2, D. Demontis1,2,3, J. Grove1,2,3, T. Als1,2,3, O. Mors2,3,4, A. D. Bøglum2 and N. H. Staunstrup1,2,3,4, (1)Center for Genomics and Personalized Medicine, Oral Session CGPM, and Center for Integrative Sequencing, iSEQ, Aarhus, Denmark, (2)The Lundbeck Foundation Initiative for Integrative Psychiatric Epidemiology/Population Studies Research, iPSYCH, Aarhus, Denmark, (3)Aarhus University, Aarhus, Oral 324 - Effects of Sex and Environment on Autism Denmark, (4)Psychosis Research Unit, Aarhus University Hospital, Phenotypes and Trajectories Aarhus, Denmark 6:15 PM - 7:10 PM 6:27 325.002 Protein-Protein Interaction in Autism Spectrum Disorder Z. Z. C. Naing, University of California, San Francisco, San Francisco, CA 6:15 324.001 The Relationship between Greenspace, Greyspace and Positive Developmental Screening in Children with Autism, Children with 6:39 325.003 Identification of DNA Methylation Changes in Child Blood Special Health Care Needs (CSHCN), and Typical Children B. Barger1, Associated with Prenatal Exposure to Infection in the Context of L. Larson2, J. Torquati3, E. Moody4 and S. Rosenberg5, (1)Georgia State Autism Spectrum Disorder E. M. Howerton1,2, M. Brucato1,2, Y. Qian3, University, Atlanta, GA, (2)[email protected], NC State, Raleigh, J. Daniels2, A. Y. Song2, H. Farzadegan1, K. S. Benke2,4, H. E. Volk2,4, NC, (3)U of Nebraska, Lincoln, NE, (4)Wyoming Institute for Disabilities, L. A. Croen3, M. D. Fallin2,4 and C. Ladd-Acosta1,2, (1)Epidemiology, University of Wyoming, Laramie, WY, (5)University of Colorado Anschutz Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, (2) Medical Campus, Aurora, CO Wendy Klag Center for Autism and Developmental Disabilities, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, (3)Division 6:27 324.002 Caregiver and Neighborhood Factors Associated with of Research, Kaiser Permanente, Oakland, CA, (4)Mental Health, Johns Treatment Outcomes for School-Aged Children with ASD and Hopkins Bloomberg School of Public Health, Baltimore, MD Co-Occurring Mental Health Needs in a Community Effectiveness Trial of AIM HI. B. Caplan1,2, T. Lind2,3, K. Martinez4,5, G. May6, C. Gomez Alvarado7, C. Chlebowski1,2 and L. Brookman-Frazee1,2,8,9, (1)Psychiatry, UC San Diego, La Jolla, CA, (2)Child and Adolescent Services Research Center, San Diego, CA, (3)Child and Family Studies, San Diego State University, San Diego, CA, (4)Child and Adolescent Services Research Center (CASRC), San Diego, CA, (5)Clinical Psychology, San Diego State University / University of California, San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA, (6)Psychology, University of Nebraska-Lincoln, Lincoln, NE, (7)Psychology, UCLA, Los Angeles, CA, (8)UC San Diego Dissemination and Implementation Science Center, La Jolla, CA, (9)Autism Discovery Institute, Rady Children’s Hospital-San Diego, San Diego, CA

55 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

6:51 325.004 Exploratory Study of Impact of Maternal Medication on Oral Session 1,2,3 4 Neonatal Epigenomes A. Starnawska , E. Hannon , H. Thisted Other - Multiple Topic Areas Horsdal2,3,5, M. Janecka2,6, J. Grove1,2,3, O. Mors2,3,7, A. D. Borglum1,2,8, J. Bybjerg-Grauholm9,10, N. H. Staunstrup1,2,3,7, J. D. Buxbaum11, A. Oral 327 - Understanding Behavioral and Biological Reichenberg6, E. Agerbo2,3,12, J. Mill4 and D. Schendel2,3, (1)Center for Heterogeneity in Autism Genomics and Personalized Medicine, CGPM, and Center for Integrative 6:15 PM - 7:10 PM Sequencing, iSEQ, Aarhus, Denmark, (2)The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, 6:15 327.001 Clinically-Relevant ASD Subgroups Based on Neural and Denmark, (3)Aarhus University, Aarhus, Denmark, (4)University of Exeter Behavioral Characteristics Revealed through Similarity Network Fusion Medical School, University of Exeter, Exeter, United Kingdom, (5)Big Y. Xiao1, M. V. Lombardo2, L. Eyler3, T. H. Wen1, D. Goel1, K. Pierce1 Data Centre for Environment and Health, Aarhus University, Aarhus, and E. Courchesne1, (1)Autism Center of Excellence, Department of Denmark, (6)Seaver Autism Center, Department of Psychiatry, Icahn Neurosciences, University of California, San Diego, La Jolla, CA, (2) School of Medicine at Mount Sinai Hospital, New York, NY, (7)Psychosis Center for Neuroscience and Cognitive Systems, Laboratory for Autism Research Unit, Aarhus University Hospital, Aarhus, Denmark, (8)iSEQ, and Neurodevelopmental Disorders, Istituto Italiano di Tecnologia, Center for Integrative Sequencing, Aarhus University, Aarhus, Denmark, Rovereto, Italy, (3)Department of Psychiatry, Univeristy of California, San (9)The Lundbeck Foundation Initiative for Integrative Psychiatric Diego, La Jolla, CA Research, iPSYCH,, Aarhus, Denmark, (10)Center for Neonatal Screening, Department for Congenital Disorders, Statens Serum Institut, 6:27 327.002 Predictors of Adaptive Functioning in a Heterogenous Autism Copenhagen, Denmark, (11)Department of Psychiatry, Icahn School Spectrum Disorder Cohort: A Conditional Random Forest Analysis G. T. of Medicine at Mount Sinai, New York, NY, (12)Centre for Integrated Han1, D. Morriss Sipsock2, D. Barker3, G. Righi3, E. Morrow4 and S. J. Register-Based Research, CIRRAU, Aarhus University, Aarhus, Sheinkopf5, (1)Child Study Center, Yale University School of Medicine, Denmark New Haven, CT, (2)Maine Behavioral Healthcare, Portland, ME, (3) Department of Psychiatry and Human Behavior, The Warren Alpert Medical School of Brown University, Providence, RI, (4)Brown University, Oral Session Providence, RI, (5)Brown Center for the Study of Children at Risk, International and Cross-Cultural Perspectives Women & Infants Hospital, Providence, RI Oral 326 - Impacts on Families and Individuals 6:39 327.003 Clinical and Biochemical Predictors of Severity and 6:15 PM - 7:10 PM Response to Applied Behavioral Analysis in Children with Autism Spectrum Disorder: An Outpatient Registry-Based Prospective Study S. Gulati1, S. Sharma2, P. K. Panda3, S. Badal4, J. Gupta5, R. Sihna5, G. 6:15 326.001 An Intersectional Analysis of the Experiences of Parents 6 6 2 6 7 Raising Children with Autism and Other Developmental Disorders Kamila , S. Singh , S. Khan , A. Meena and C. Narayan , (1)Centre of in Ethiopia B. T. Tekola1, M. Kinfe2, F. Girma2, C. Hanlon3 and R. Excellence and Advanced Research for Childhood Neurodevelopmental A. Hoekstra1, (1)Department of Psychology, King’s College London, Disorders, Child Neurology Division, Department of Pediatrics, All India London, United Kingdom, (2)Department of Psychiatry, School of Institute of Medical Sciences, New Delhi, India, (2)Child Neurology Medicine, College of Health Sciences, Addis Ababa University, Addis Division, Department of Pediatrics, All India Institute of Medical Sciences, Ababa, Ethiopia, (3)Addis Ababa University and King’s College London, New Delhi, New Delhi, India, (3)Child Neurology Division, Department of Addis Ababa, Ethiopia Pediatrics, All India Institute of Medical Sciences, Rishikesh, India, (4) Pediatrics, AFMC, Pune, India, (5)Child Neurology Division, department 6:27 326.002 Depression Among Latinx Mothers of Children with ASD: Did of pediatrics, All India Institute of Medical Sciences, New Delhi, New a Culturally Tailored Parent Psychoeducation Intervention Show Positive Delhi, India, (6)All India Institute of Medical Sciences, New Delhi, New Effects on Maternal Depressive Symptoms? W. Zeng1, S. Magaña1, K. Delhi, India, (7)Ansari Nagar, All India Institute of Medical Sciences, New Lopez2 and W. A. Machalicek3, (1)Steve Hicks School of Social Work, Delhi, New Delhi, India University of Texas at Austin, Austin, TX, (2)Arizona State University, Phoenix, AZ, (3)University of Oregon, Springfield, OR 6:51 327.004 Depi: A Platform Designed to Enable Precision Medicine in Neurodevelopmental Disorders L. Perez-Cano1, E. Guney1, F. Sirci1, D. 6:39 326.003 Impact of Covid-19 on the Experiences of Parents and Charvin2 and L. Durham2, (1)Discovery and Data Science (DDS) unit, Family Carers of Autistic Children and Young People in the UK G. STALICLA SL, Barcelona, Spain, (2)STALICLA SA, Geneva, Switzerland Pavlopoulou1,2, R. Wood3 and C. Papadopoulos4, (1)Department of Psychology and Human Development, Institute of Education, UCL, London, United Kingdom, (2)Anna Freud Centre/UCL Brain Sciences, london, United Kingdom, (3)School of Education and Communities, University of East London, London, United Kingdom, (4)University of Bedfordshire, london, United Kingdom

6:51 326.004 Understanding Barriers to Good Mental Health for Autistic People during the COVID-19 Pandemic I. Dale1, H. Judge2 and D. May3, (1)The National Autistic Society, Sheffield, United Kingdom, (2)National Autistic Society, London, United Kingdom, (3)National Autistic Society, London, United Kingdom of Great Britain and Northern Ireland

56 • INSAR 2021 VIRTUAL ANNUAL MEETING • Wednesday May 5, 2021

Oral Session Service Delivery/Systems of Care Oral 328 - Access to Primary and Preventive Care 6:15 PM - 7:10 PM

6:15 328.001 National Inpatient Hospitalizations in Autistic Youth in the U.S. J. Rast1, A. Roux1, S. J. Fernandes1, V. D’Silva2 and L. Shea3, (1) A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA, (2) Children’s Crisis Intervention Services, Robert Wood Johnson Barnabas Health Monmouth Medical Center, Long Branch, NJ, (3)A.J. Drexel Autism Institute, Philadelphia, PA

6:27 328.002 Specialized Primary Care Center for Autistic Adults Is Linked with Increased Receipt of Preventive Care Services B. N. Hand1, D. Gilmore2, D. Coury3, A. Darragh4, S. Moffatt-Bruce5, C. Hanks6 and J. Garvin7, (1)Health and Rehabilitation Sciences, The Ohio State University, Columbus, OH, (2)The Ohio State University, Columbus, OH, (3)Nationwide Children’s Hospital, Columbus, OH, (4)Division of Occupational Therapy, The Ohio State University, Columbus, OH, (5) Department of Surgery, The Ohio State University, Columbus, OH, (6) The Ohio State Unviersity Wexner Medical Center, Hilliard, OH, (7)Health Information and Management Systems, The Ohio State University, Columbus, OH

6:39 328.003 Feasibility of a Telediagnostic Model for ASD Evaluation in Clinically-Referred Young Children E. Fox and J. Gerdts, University of Washington, Seattle, WA

6:51 328.004 Physician Voices on the Impact of Echo Autism in a LMIC Setting- a Qualitative Study of a Telementoring Model to Build Physician Capacity in Diagnoses and Management of Pediatric ASD K. Sengupta1, L. Lobo2, V. Krishnamurthy2 and K. Sohl3, (1)Ummeed Child Development Center, Mumbai, Maharashtra, INDIA, (2)Ummeed Child Development Center, Mumbai, Maharashtra, India, (3)Department of Child Health, University of Missouri, School of Medicine, Columbia, MO

57 • INSAR 2021 VIRTUAL ANNUAL MEETING • Thursday May 6, 2021

Events 9:40 222.003 Underage Alcohol Use in Youth on the Autism Spectrum E. 1 2,3 Event 604 - Student Social and Booth (Australia/Asia) F. Rothman and L. Graham Holmes , (1)Community Health Sciences, Boston University School of Public Health, Boston, MA, (2)Boston 4:00 AM - 5:00 AM University School of Public Health, Boston, MA, (3)Hunter College, City University of New York, New York City, NY This year, the Student Social and STC Booth have combined (virtual) forces! Join 10:00 222.004 Where Is Cannabis Legally Available to Autistic Youth and us online for peer networking and to learn more about the STC at one of three Adults in the U.S., and Why Do Autistic Youth Report Using Cannabis? times, intended to be accessible to students and trainees globally. The Student 1,2 3 Social offers a great opportunity for students and trainees to network with one L. Graham Holmes and E. F. Rothman , (1)Boston University School another in small groups. One breakout room within each Social will comprise our of Public Health, Boston, MA, (2)Hunter College, City University of virtual Booth where students and trainees can learn more about INSAR events New York, New York City, NY, (3)Community Health Sciences, Boston and resources relevant to them. These events will be facilitated by STC committee University School of Public Health, Boston, MA members, so it’s also a chance for students and trainees to meet the STC mem- bers and learn more about our committee! Panel Session Cellular Models/Stem Cells Panel Session Panel 223 - Harnessing the Potential of Induced Pluripotent Adult Outcome: Medical, Cognitive, Behavioral, Social, Stem Cells to Model Autism Spectrum Disorders Adaptive, Vocational 9:00 AM - 11:00 AM Panel 222 - Substance Use Among Adolescents and Adults on the Spectrum 9:00 AM - 11:00 AM Panel Chair: N. Nadif Kasri, Human Genetics, Radboudumc, Nijmegen, Netherlands

Panel Chair: L. Graham Holmes, Boston University School of Public Discussant: J. D. Buxbaum, Department of Psychiatry, Icahn School of Health, Boston, MA, Hunter College, City University of New York, New Medicine at Mount Sinai, New York, NY York City, NY Genetic analyses of large cohorts of individuals with autism spectrum disorders Substance use disorder prevention is an important component of adolescent and (ASD) have enabled the identification of numerous de novo and inherited rare adult health. Considering that an estimated 707,000-1,116,000 autistic youth will DNA variants linked to ASD. Despite this considerable progress in elucidating the turn 18 years old by the year 2030, there is a tremendous deficit of information genetic architecture of ASD, a major gap exists between the genetic findings and about substance use by autistic people. This panel presents the findings of four deciphering the cellular and molecular pathobiology of ASD. Capitalizing on new separate studies addressing questions about autistic adolescent and adult sub- developments in induced pluripotent stem cell technology (iPSCs) we can finally stance use. Collectively, these studies analyzed data from hundreds of autistic study the cells of interest outside of the patient, capturing features of the human youth and adults using interview, survey, and secondary data analysis methods. condition in vitro, thereby allowing the pathobiology to be studied in the context of Presentation 1 (n=390) presents a novel analysis of nationally representative the human genome. Over the past years, significant progress has been made to data on U.S. school-based substance use disorder prevention education for U.S. differentiate iPSCs into robust 2D and 3D neuronal models that recapitulate the students with autism, showing they are less likely to receive this service than main features of human brain development. Much effort has been put in to the youth without disabilities. Presentation 2 uses a large-scale cross-sectional study establishment of relevant phenotypic assays for mechanistic understanding and (n=733) to identify psychiatric conditions associated with substance use disorders drug screening. These include brain-on-a-chip technologies to link genetic deficits in autistic individuals compared to clinical controls. Presentation 3 explores the observed in patients to neuronal network measurements. Finally, developments in thoughts and opinions of autistic young people (n=40) about their experiences with genome engineering and genomic technologies can be leveraged in large screen- alcohol. Finally, Presentation 4 presents an analysis of U.S. states in which autism ing assays to identify points of convergence between ASD genes. This panel will is a qualifying condition, and the results of a qualitative interview study of n=40 discuss recent advances and opportunities in this exciting field of research. autistic youth about their cannabis use. 9:00 223.001 High-Throughput Single-Cell Functional Elucidation of 9:00 222.001 School-Based Substance Use Education: Inclusion of Youth Neurodevelopmental Disease-Associated Genes Reveals Convergent on the Autism Spectrum in a Representative U.S. Sample J. Rast1, L. Mechanisms Altering Neuronal Differentiation M. A. Lalli1, D. Avey2, J. Graham Holmes2,3, A. Roux1 and E. F. Rothman4, (1)A.J. Drexel Autism Dougherty3, J. Milbrandt4 and R. Mitra4, (1)Icahn School of Medicine at Institute, Drexel University, Philadelphia, PA, (2)Boston University School Mount Sinai, New York, NY, (2)Washington University in St Louis, St of Public Health, Boston, MA, (3)Hunter College, City University of Louis, MO, (3)Genetics, Washington University School of Medicine, St. New York, New York City, NY, (4)Community Health Sciences, Boston Louis, MO, (4)Genetics, Washington University in St. Louis, St. Louis, University School of Public Health, Boston, MA MO

9:20 222.002 Substance Use Disorder in Autistic Adults: A Cross- 9:20 223.002 Neurons-on-a-Chip to Model ASD N. Nadif Kasri, Human Sectional Study of a National Mental Health Database K. L. Unwin1, J. Genetics, Radboudumc, Nijmegen, Netherlands Underwood2 and J. Hall2, (1)Olga Tennison Autism Research Centre, La Trobe University, Melbourne, VIC, Australia, (2)Neurosciences & Mental 9:40 223.003 In Vivo Perturb-Seq Reveals Neuronal and Glial Health Research Institute, Cardiff University, Cardiff, United Kingdom Abnormalities Associated with Autism Risk Genes X. Jin, Society of Fellows, Harvard University, Cambridge, MA

10:00 223.004 Brain Organoids and Next-Generation Assembloid Models to Study Human Development and Disease S. Pasca, Department of Psychiatry and Behavioral Sciences,, Stanford University,, Stanford, CA

58 • INSAR 2021 VIRTUAL ANNUAL MEETING • Thursday May 6, 2021

Panel Session Panel Session Communication and Language International and Cross-Cultural Perspectives Panel 224 - Vocal Development in Infants and Children with Panel 225 - Cultural Perspectives on Families’ Experience of ASD and at Risk for ASD Autism and Autism Services 9:00 AM - 11:00 AM 9:00 AM - 11:00 AM

Panel Chair: D. K. Oller, School of Communication Sciences and Panel Chair: A. Perry, Psychology, York University, Toronto, ON, Canada Disorders, University of Memphis, Memphis, TN Discussant: J. Nyoni, Education, Lusaka, Zambia Discussant: D. S. Messinger, University of Miami, Coral Gables, FL Although there is a considerable body of research on families of children with We focus on both the vocalizations of infants and children at risk for ASD and autism, it is based primarily (though not exclusively) on middle-class, white, Amer- on parental responses to those vocalizations. The goals are 1) to help designate ican or European samples and has tended to focus on negative aspects (such anomalies in very early vocal development associated with risk or diagnosis of as parenting stress) and service system inadequacies. Although more recent ASD, 2) to characterize features of vocal development held in common early in life research includes examination of positive aspects as well as challenges families between infants at risk and not at risk for ASD, and 3) to address parental vocal face, the perspectives of families from other countries and of immigrant families responsivity patterns that may be special to the infant or child with or at risk for are conspicuously absent. This set of studies focuses on the experience of fam- ASD and that may inform future approaches to intervention. The work involves ilies of children with autism who are either living in other countries (Zambia and both laboratory and home recordings, many of them all-day recordings, automated Taiwan) or who are immigrants to Canada (one study of a heterogeneous group of multitaper harmonic analysis to determine fundamental frequencies, functional immigrants, the other of South Asians specifically). Using quantitative and/or qual- data analysis with dynamic time warping to evaluate developmental trajectories, itative methods, we explore the perspectives of parents from other countries and evo-devo inspired human coding of vocalizations in a multidimensional audio-video cultures, including their understanding of the diagnosis, their experience of stress software environment, and comparisons across infants and children both at risk and coping, positive and negative family impacts, how culture influences these and not at risk for ASD along with additional infants and children with an ASD experiences, and their perspectives on autism supports and services. The results diagnosis. Infants were also racially and ethnically diverse. The speakers repre- have important implications for future research and clinical practice with diverse sent four nationalities as well as Asian, middle Eastern, and European ancestries. families. We hope this panel will also challenge some assumptions, change some There are four universities represented, and speakers range from tenured to just attitudes towards families from different backgrounds, and promote greater diversi- completing the Ph.D. ty awareness generally. 9:00 224.001 Developmental Cascades Linking Infant-Directed Speech, 9:00 225.001 Exploring Diagnosis and Treatment from the Perspective Infant Vocal Behavior and Social Contingency in Typical Development of Zambian Mothers B. Zapparoli1 and A. Perry2, (1)Clinical and ASD G. Ramsay1, M. Edwards2, J. Bailey3 and S. Ghai4, (1) Neuropsychology, Boston Children’s Hospital, Boston, MA, (2) Department of Pediatrics, Emory University, Atlanta, GA, (2)Emory Psychology, York University, Toronto, ON, Canada University, Atlanta, GA, (3)University of Miami, Miami, FL, (4)Marcus 9:20 225.002 Exploring Knowledge, Attitudes, and Practices of Autism Autism Center, Children’s Healthcare of Atlanta, and Emory University Treatment in Taiwan H. S. Ho1, A. Perry2 and H. T. Wang3, (1)York School of Medicine, Atlanta, GA University, Markham, ON, Canada, (2)Psychology, York University, 9:20 224.002 Social and Endogenous Motivations of Canonical Babbling Toronto, ON, Canada, (3)National Taiwan Normal University, Taipei, Development in Infants at Low and High Risk for Autism H. L. Long1, Taiwan G. Ramsay2,3, D. Bowman4,5, M. Burkhardt-Reed1 and D. K. Oller1,5,6, 9:40 225.003 Experience of Canadian Immigrant Families of Children with (1)School of Communication Sciences and Disorders, University of Autism T. Kuan1, O. Weiss2 and A. Perry3, (1)York University, Toronto, Memphis, Memphis, TN, (2)Department of Pediatrics, Emory University, ON, Canada, (2)Children & Youth Division, Surrey Place, Toronto, ON, Atlanta, GA, (3)Marcus Autism Center, Atlanta, GA, (4)Department Canada, (3)Psychology, York University, Toronto, ON, Canada of Mathematics, University of Memphis, Memphis, TN, (5)Institute for Intelligent Systems, Memphis, TN, (6)Konrad Lorenz Institute for 10:00 225.004 Experiences of South Asian Immigrant and Canadian-Born Evolution and Cognition Research, Klosterneuburg, Austria Mothers N. Luthra1 and A. Perry2, (1)McMaster Children’s Hospital, Hamilton, ON, Canada, (2)Psychology, York University, Toronto, ON, 9:40 224.003 Phonatory Control in Typically Developing Infants and Canada Infants at Risk for Autism H. Yoo1, G. Ramsay2 and D. K. Oller3, (1) Communicative Disorders, The University of Alabama, Tuscaloosa,, AL, (2)Marcus Autism Center, Children’s Healthcare of Atlanta, and Emory University School of Medicine, Atlanta, GA, (3)School of Communication Sciences and Disorders, University of Memphis, Memphis, TN

10:00 224.004 Maternal Input Differences within Infant-Directed Speech and Volubility in Preschool Children with ASD L. K. Farran1 and D. K. Oller2, (1)Communication Sciences and Disorders, University of West Georgia, Carrollton, GA, (2)School of Communication Sciences and Disorders, University of Memphis, Memphis, TN

59 • INSAR 2021 VIRTUAL ANNUAL MEETING • Thursday May 6, 2021

Panel Session 9:00 226.001 Designs and Methods to Identifying Neurocognitive Other - Multiple Topic Areas Sugroups across Six Dimensions from Preschoolers to Adults E. Loth1, A. Goodwin1, M. J. Brammer2, A. N. de Rothschild1, J. Koziel1, A. Panel 226 - New Approaches to Parsing Heterogeneity in Pilkington1, R. Leech3, H. Roeyers4, T. Falck-Ytter5, R. Delorme6, E. Autism and Understanding Cross-Disorder Similarities Demurie4, M. A. Krol7, P. F. da Costa8, B. Oakley9, T. Bourgeron10, 9:00 AM - 11:00 AM M. Mues11, A. Lefebvre12, A. Maruani13, J. Cooke9, T. Charman14, G. Pasco15, A. Fritz16, L. Girke17, M. Potter18, P. E. Springer19, H. J. Odendaal20, D. Murphy1 and J. K. Buitelaar21, (1)Department of Panel Chair: E. Loth, Department of Forensic and Neurodevelopmental Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s Psychology and Neuroscience, King’s College London, London, United College London, London, United Kingdom and Kingdom, (2)Centre for Neuroimaging, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom, (3) Discussant: E. Anagnostou, Autism Research Center, Bloorview Imperial College London, London, United Kingdom, (4)Department of Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Experimental-Clinical and Health Psychology, Ghent University, Ghent, Toronto, ON, Canada Belgium, (5)Karolinska Institutet & Uppsala University, Uppsala, Sweden, (6)Excellence centre for Autism and Neurodevelopmental disorders, The past decade has shown that no single clinical, neurobiological or genetic fea- Paris, France, (7)Psychological and Brain Sciences, Boston University, ture is universal or specific to autism. Instead, considerable heterogeneity within Boston, MA, (8)Centre for Neuroimaging Sciences, King’s College the autism spectrum paired with frequent overlaps between neurodevelopmental London, London, United Kingdom, (9)Forensic and Neurodevelopmental conditions have crystallised as key barriers to our ability to map genotype-pheno- Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s type links and to develop targeted support and treatments for particular individuals. College London, London, United Kingdom, (10)Human Genetics and Hence, new designs and methodologies beyond traditional case-control compari- Cognitive Functions, Institut Pasteur, Paris, France, (11)Experimental, sons are required to identify markers and mechanisms of subgroups with shared Clinical and Health Psychology, Ghent University, Gent, Belgium, (12) characteristics within and/ or across established diagnostic boundaries. This sym- AP-HP, Robert-Debré Hospital, Child and adolescent Psychiatry unit, posium brings together clinical and preclinical scientists from several international Paris, France, (13)hopital robert debre, paris, FRANCE, (14)Department autism consortia to discuss new cohort designs, translatable tests and analytical approaches. Eva Loth will present the design and methods of the AIMS-2-TRIALS/ of Psychology, Institute of Psychiatry, Psychology and Neuroscience, CANDY Preschool Imaging Study that compares children with autism, ADHD, ID King’s College London, London, United Kingdom, (15)Institute of and epilepsy across six dimensions. Minshi Peng will show similarities and differ- Psychiatry, Psychology and Neuroscience, King’s College London, ences in gene expression patterns between autism and ID. Adriana di Martino will London, United Kingdom, (16)Forensic and Neurodevelopmental present work aimed to identify common and distinct functional patterns between Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s autism and ADHD in a deeply phenotyped neuroimaging sample. Azadeh Kushki College London, London, United Kingdom, (17)Karolinska Institutet, will present a data-driven, diagnosis-agnostic approach to discover subgroups Stockholm, Sweden, (18)Stellenbosch University, Cape Town, South across autism, ADHD and OCD. Evdokia Anagnostou will synthesise approaches Africa, (19)Department of Paediatrics and Child Health, Stellenbosch and discuss their strengths and challenges. University, Cape Town, South Africa, (20)Department of Obstetrics and Gynaecology, Stellenbosch University, Cape Town, South Africa, (21) Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands

9:20 226.002 Heterogeneity within Autism Viewed through Its Mutational and Gene Expression Patterns and Those of Developmental Disability M. Peng1, B. Wamsley2 and K. Roeder3, (1)Carnegie Mellon University, Pittsburgh, PA, (2)University of California, Los Angeles, Los Angeles, CA, (3)Department of Statistics and Data Science, Carnegie Mellon University, Pittsburgh, PA

9:40 226.003 A Data-Driven, Diagnosis-Agnostic Approach to Discover Subgroups across Autism, ADHD and OCD M. M. Vandewouw1, E. Anagnostou2, J. P. Lerch3, M. J. Taylor4, J. Crosbie5 and A. Kushki6, (1)Program in Neuroscience & Mental Health, The Hospital for Sick Children, Toronto, ON, Canada, (2)Autism Research Center, Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada, (3)Wellcome Centre for Integrative Neuroimaging (WIN), University of Oxford, Oxford, ON, United Kingdom, (4)The Hospital for Sick Children, Toronto, ON, Canada, (5)Psychology, The Hospital for Sick Children, Toronto, ON, Canada, (6)Bloorview Research Institute, Toronto, ON, Canada

60 • INSAR 2021 VIRTUAL ANNUAL MEETING • Thursday May 6, 2021

10:00 226.004 Transdiagnostic Functional Mapping of Autism and ADHD 10:00 227.004 Age-Associations, Neural Correlates, and Familiality of P. Segura1, A. Di Martino2, J. Stroud1, S. Bishop3, S. H. Kim4, C. Lord5, Atypical Sensorimotor Behaviors in ASD M. W. Mosconi1, K. E. Unruh2, F. X. Castellanos6, M. P. Milham2, J. Filho2, A. K. Simhal1, J. Cloud7 W. S. McKinney2, R. J. Lepping3, E. K. Bojanek4, S. E. Kelly5, L. Martin6 and S. Colcombe7, (1)Autism Center, Child Mind Institute, New York, and J. A. Sweeney7, (1)Clinical Child Psychology Program, Schiefelbusch NY, (2)Child Mind Institute, New York, NY, (3)University of California Institute for Life Span Studies, University of Kansas, Lawrence, KS, (2) San Francisco, San Francisco, CA, (4)Psychiatry, Center for Autism Kansas Center for Autism Research and Training (K-CART), University and the Developing Brain, White Plains, NY, (5)University of California, of Kansas, Lawrence, KS, (3)Hoglund Brain Imaging Center, University Los Angeles, Los Angeles, CA, (6)Department of Child and Adolescent of Kansas, Kansas City, KS, (4)Clinical Child Psychology Program, Psychiatry, NYU Langone Health, New York, NY, (7)Nathan Klein Schiefelbusch Institute for Life Span Studies, Kansas Center for Autism Institute, New York, NY Research and Training (KCART), University of Kansas, Lawrence, KS, (5)Kansas Center for Autism Research and Training (KCART), University of Kansas, Lawrence, KS, (6)Hoglund Brain Imaging Center, Panel Session University of Kansas Medical Center, Kansas City, KS, (7)Psychiatry and Sensory, Motor, and Repetitive Behaviors and Interests Behavioral Neuroscience, University of Cincinnati College of Medicine, Cincinnati, OH Panel 227 - Conceptualizing Motor Impairments within the Broader Framework of Autism Spectrum Disorder (ASD): Their Value in Early Diagnosis and the Diagnostic Process. Panel Session 9:00 AM - 11:00 AM Service Delivery/Systems of Care Panel 228 - Decentralizing ASD Knowledge, Resources, Panel Chair: A. Bhat, Department of Physical Therapy, University of and Services Away from ASD Specialists into Diverse Delaware, Newark, DE Communities 9:00 AM - 11:00 AM Discussant: R. Landa, Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, MD Panel Chair: S. I. Habayeb, Children’s National Hospital, Washington, DC Motor delays are one of the earliest identifiable markers in at-risk infants who eventually develop Autism Spectrum Disorder (ASD, Landa & Garrett-Mayer, Discussant: S. Dababnah, University of Maryland, Baltimore, Baltimore, 2006) and increase in magnitude across development (Lloyd, Macdonald & Lord, MD 2013). Motor impairments in children with ASD are closely linked to their social communication impairments as well as comorbidities in communication, cognition, ASD awareness has increased, internationally and in historically disenfranchised and function (Licari et al., 2019). A better understanding of motor impairments can communities, at a faster rate than has the growth of the specialized ASD work- provide greater insight into the neural substrates underlying motor performance as force (Zhang and Cummings, 2019). In turn, there is a paucity of ASD specialists well as the neuropathology of ASD. However, motor impairments are currently not providing evidence-based resources to those who require them. Further, many part of the diagnostic criteria or specifiers for ASD within the DSM-V. This diverse traditional ASD clinics report lengthy wait times delaying children with/suspected panel of clinician scientists will present data on motor delays and impairments to have ASD from receiving necessary services (Gordin-Lipkin, Foster, and Pea- across the entire developmental spectrum from at-risk infants to children to adults cock, 2016). This panel will describe the benefit of decentralizing the receipt of affected by ASD. They will make a case for the pervasive nature of motor impair- ASD resources from specialized ASD professionals to community stakeholders ments in individuals affected by ASD; their association with core characteristics of in order to increase equitable access of these tools and supports. This panel will ASD, and their impact on level of impairment and adaptive functioning. We hope to highlight projects that have successfully engaged diverse community stakeholders, make a case for why and how motor impairments are intimately linked to the neu- including early childcare providers and parents, to disseminate evidence-based ropathology of ASD and why they should be considered within the defining criteria ASD knowledge, resources, screening protocols, and treatments to children and or specifiers for ASD. families. Projects will share examples from different timepoints along a family’s diagnostic journey, beginning with monitoring for atypical development through 9:00 227.001 Prevalence of Motor Impairment in Children on the Autism receiving therapy once a diagnosis has been made. Presentations will emphasize Spectrum and Early Motor Prognostic Markers in Infancy M. K. Licari1, 2 1 1 how stakeholder engagement in resource dissemination can decrease health J. Reynolds , G. A. Alvares and A. O. Whitehouse , (1)Telethon Kids disparities among ethnic and racial minority youth and improve access to needed Institute, University of Western Australia, Perth, WA, Australia, (2) services in historically underserved communities in the US and internationally. Telethon Kids Institute, Nedlands, WA, Australia 9:00 228.001 Bridging the Gap: Increasing Access to ASD Knowledge 9:20 227.002 Quantitative Measures of Average and Peak Acceleration and Resources through Hospital-Community Partnerships Focused Differentiate Infants at High and Low Familial Risk for ASD and Are on Training and Supporting Early Childhood Education Community Related to Developmental Status. R. B. Wilson1, M. Tsang2, B. Smith3, Providers S. I. Habayeb1, A. Inge2, Y. Myrick1, A. Hastings1, O. Soutullo1, T. Safari1 and D. Elashoff1, (1)UCLA Medical Center, Los Angeles, R. Williams3 and L. Godoy1, (1)Children’s National Hospital, Washington, CA, (2)UCLA David Geffen School of Medicine, Los Angeles, CA, (3) DC, (2)Center for Autism Spectrum Disorder, Children’s National University of Southern California, Los Angeles, CA Hospital, Rockville, MD, (3)Child Health Advocacy Institute, Children’s National Hospital, Washington, DC 9:40 227.003 The Nature and Severity of Motor Impairment in a Large Sample of School-Age Children with Autism Spectrum Disorder (ASD): A SFARI-SPARK Dataset Analysis. A. Bhat, Department of Physical Therapy, University of Delaware, Newark, DE

61 • INSAR 2021 VIRTUAL ANNUAL MEETING • Thursday May 6, 2021

9:20 228.002 Addressing Health Disparities in Early Detection of ASD: Panel Session 1 Bilingual Screening in Part C Early Intervention A. S. Carter , R. C. Adult Outcome: Medical, Cognitive, Behavioral, Social, Sheldrick2, A. Eisenhower3, T. Mackie4, F. Martinez-Pedraza5, N. A. Hoch6 and S. M. Brunt7, (1)Department of Psychology, University of Adaptive, Vocational Massachusetts Boston, Boston, MA, (2)Boston University School of Panel 229 - Digitally Augmented Phenotyping of Autism Public Health, Boston, MA, (3)University of Massachusetts Boston, Spectrum Disorders Boston, MA, (4)Institute for Health, Health Care Policy and Aging 12:45 PM - 2:45 PM Research, School of Public Health, Rutgers Univer, New Brunswick, NJ, (5)Center for Children and Families, Florida International University, Miami, FL, (6)Clark University, Worcester, MA, (7)Psychology Panel Chair: C. M. Falter-Wagner, Department of Psychiatry and Department, University of Massachusetts Boston, Boston, MA Psychotherapy, LMU Hospital Munich, Munich, Germany

9:40 228.003 Evaluation of a Novel Remote Cascade Training Curriculum Discussant: K. Vogeley, Department of Psychiatry and Psychotherapy, of the Who/As Caregiver Skills Training Program (CST) in Response University Hospital Cologne, Cologne, Germany to the COVID-19 Pandemic A. Ibrahim1, H. R. Pickard2, A. Kiafar1, A. 3 4 5 6 7 3 Yusuf , P. Dixon , S. Dababnah , A. Shih , A. Pickles , M. Elsabbagh , Differential diagnostics of autism spectrum disorders (ASD) currently relies main- 8 9 S. Y. Shire and T. W. CST Team , (1)McGill University, Montreal, ly on (semi-standardised) behavioural observation. The diagnostic reliability of QC, Canada, (2)Social, Genetic and Developmental Psychiatry, clinical impression formation depends heavily on in-depth clinical experience and King’s College London, London, United Kingdom, (3)Neurology and represents a particular challenge for adult diagnostics. Methods of digital recording Neurosurgery, McGill University, Montreal, QC, Canada, (4)Wayne and analysis of behaviour promise high potential for more objective and economic State University, Ann Arbor, MI, (5)University of Maryland, Baltimore, ASD diagnostics based on the assessment of biological and behavioural mark- Baltimore, MD, (6)Autism Speaks, New York, NY, (7)King’s College ers. The approaches presented in this panel investigate the potential of digital London, Institute of Psychiatry, Psychology and Neuroscience, London, assessment methods and machine learning for digitally augmented phenotyping United Kingdom, (8)University of Oregon, Eugene, OR, (9)Department of ASD. The contributions to the panel will discuss high resolution parameters of of Mental Health and Substance Abuse, World Health Organization, temporal coordination between gaze, gesture, verbal output and facial expression. Geneva, Switzerland Assessment methods comprise coupled eye-tracking and computerised movement detection, video analysis, computer vision approaches, machine learning amongst 10:00 228.004 Revisiting a Parent Education Program for Latinx Families: others. A balance of controlled laboratory settings and ecologically valid interper- Are Positive Effects Maintained Overtime? S. Magaña1, W. Zeng1 and sonal interactions will be discussed. Such digital assessment methods could shape ASD diagnostics in the future by providing an objective, automatized phenotyping K. Lopez2, (1)Steve Hicks School of Social Work, University of Texas at aid augmenting clinical decision making, providing more efficient diagnostic proce- Austin, Austin, TX, (2)Arizona State University, Phoenix, AZ dures and adding to cross-institutional reliability of clinical decisions. 12:45 229.001 Temporal Patterns of Automatically Measured Nonverbal Keynote Address Communication in ASD C. Bloch, Department of Psychiatry and Event 105 - Keynote - Stormy Chamberlain, PhD Psychotherapy, LMU Hospital Munich, Munich, Germany Mechanisms of Repression and Therapeutic Approaches for 1:05 229.002 A Computer Vision Approach for Classifying Autistic Angelman Syndrome Behaviour during Dyadic Interactions A. L. Georgescu, King’s College 11:15 AM - 12:15 PM London, London, United Kingdom 1:25 229.003 Social Synchrony in Interpersonal Settings for Automatic Speaker: S. J. Chamberlain, Dept. of Genetics and Genome Sciences, Classification of Autism Spectrum Disorder J. Köhler, LMU Munich, Munich, Germany University of Connecticut Health Center, Farmington, CT

1:45 229.004 Automated Analysis of Social Interaction Behavior in Angelman syndrome is a neurodevelopmental disorder caused by the loss of Autism Spectrum Conditions (ASC) H. Drimalla, University of Bielefeld, function from the maternal allele of UBE3A, a gene encoding an E3 ubiquitin Bielefeld, Germany ligase. The paternal allele of UBE3A is silenced by UBE3A-ATS, a long non- coding RNA expressed exclusively in neurons. Activation of the silent paternal allele offers a promising therapeutic approach for Angelman syndrome. Using human induced pluripotent stem cell models of Angelman syndrome, we have carefully studied the cellular phenotypes in AS neurons, and uncovered details of the mechanisms regulating the expression of UBE3A-ATS and repression of paternal UBE3A. This detailed understanding has aided the development of antisense oligonucleotide (ASO) therapeutics to activate paternal UBE3A in human AS neurons and revealed the mechanisms underlying this therapeutic approach. Based on our understanding of these mechanisms, we are beginning to explore the next generation of therapeutic strategies to activate paternal UBE3A by delivering shRNAs using viral vectors. This improved therapeutic approach combines the targeted activation of paternal UBE3A with the one-and- done benefits of gene therapy. As multiple therapeutics for Angelman syndrome are currently in or nearing clinical trials, Angelman syndrome is poised to be an important proof-of principle for other neurodevelopmental disorders.

62 • INSAR 2021 VIRTUAL ANNUAL MEETING • Thursday May 6, 2021

Panel Session Panel Session Clinical Trial Endpoints Family Issues and Stakeholder Experiences Panel 230 - Digital Outcome Measures Panel 231 - The Impact of the COVID19 Pandemic on Autism 12:45 PM - 2:45 PM and Other Neurodevelopmental Conditions: Lessons Learned from Studies across the Lifespan Panel Co-Chairs: C. H. Chatham, Neuroscience and Rare Diseases 12:45 PM - 2:45 PM (NRD), Roche Pharma Research and Early Development, Roche Innovation Center, New York, CA and G. J. Pandina, Janssen Research Panel Chair: V. H. Bal, Graduate School of Applied and Professional & Development, Titusville, NJ Psychology, Rutgers University-New Brunswick, Piscataway, NJ

To better help individuals with autism lead healthy & happy lives, we must first find Discussant: A. Thurm, National Institute of Mental Health, Bethesda, MD more efficient ways to learn from them: with higher resolution, at a larger scale, and across a broader scope of behaviors than classical approaches have afforded The COVID-19 pandemic necessitated rapid, dramatic shifts in daily-life across so far. This paradigmatic shift will require innovation to be coordinated across the world. Those with neurodevelopmental conditions (NDC) are assumed to be traditional divides between basic and applied work, and to align emerging insights especially vulnerable to pandemic-related disruptions. Understanding their specific from autism screening with the analysis of scalable assessments deployed in the vulnerabilities is critical to effectively respond to immediate and longer-term needs. context of interventional trials. For robust insights to emerge, this shift will also Accordingly, this panel comprises large-scale studies of the impact of treatment require a careful marriage of new and old - incorporating new digital biosensors, service disruption, and specific adverse effects on a range of behavioral, psycho- machine learning approaches, and sensor/modality fusion with older and irreplace- logical and/or functional domains in children and adults with ASD and other NDC. able traditions of gathering meaningful feedback from qualitative interviews; of Study 1 highlights differences in service loss by age and NDC diagnosis, as well rigorous work at the intersection of psychometrics, psychophysics and physiology; as associations between service loss and increased symptoms and negative par- and of regulatory-grade trial design & inference. We will showcase the many fac- ent experiences in individuals with genetic conditions. Study 2 identifies subgroups ets of this shift, as it is already occurring today, by bringing together cutting-edge with differing patterns of risk and resilience among youth with ASD and other NDC academic insights with new industrial efforts and regulatory perspectives on this from multiple international sites. Study 3 demonstrates an association between evolving space. employment loss and increases in depressive symptoms in young adults with 12:45 230.001 A New Digital Biomarker Platform Tracking Core & ASD. Study 4 reports increasing negative impact on services and other domains Associated Symptoms in Two Clinical Trials D. Nobbs1 and C. H. of daily-life and explores predictors of psychological distress in adults with ASD. These studies provide unique parent and self-reported perspectives that lay critical Chatham2, (1)Roche Pharma Research and Early Development. Roche groundwork to inform service development and supports for individuals with NDC Innovation Center Basel, Hoffmann-La Roche, Basel, Switzerland, (2) and their families, both now and beyond the pandemic. Neuroscience and Rare Diseases (NRD), Roche Pharma Research and Early Development, Roche Innovation Center, New York, CA 12:45 231.001 Impact of COVID-19 Restrictions on Individuals with Intellectual and Developmental Disorders: The Caring through COVID 1:05 230.002 Scalable Computational Behavioral Phenotyping for the Survey C. Hyde1, C. DiStefano2 and S. Jeste3, (1)Semel Institute, Assessment of Attention and Gaze in Autism G. Sapiro1, Z. Chang1, UCLA Medical Center, Los Angeles, CA, (2)University of California Los J. M. Di Martino1 and G. Dawson2, (1)Department of Electrical and Angeles, Los Angeles, CA, (3)University of California, Los Angeles, Los Computer Engineering, Duke University, Durham, NC, (2)Department of Angeles, CA Psychiatry and Behavioral Sciences, Duke Center for Autism and Brain Development, Durham, NC 1:05 231.002 The Crisis-Afar International Network: Preliminary Results on the Impact of the COVID-19 Pandemic in Children with Autism and 1:25 230.003 Digital Signals and Approaches to Drug Development in Related Neurodevelopmental Conditions B. Vibert1, P. Segura1, L. ASD G. J. Pandina, Janssen Research & Development, Titusville, NJ Gallagher2, S. Georgiades3, P. Pervanidou4, A. Thurm5, L. Alexander6, E. Anagnostou7, Y. Aoki8, S. Aoki9, S. Bishop10, J. Boi11, C. Bravaccio12, 1:45 230.004 Regulatory Considerations on the Use of Digital Health M. P. Canevini13, A. Carta14, A. Costantino15, E. A. Cravo16, C. Davico17, Technologies to Aid Drug Development for Autism Spectrum Disorder V. J. Fujino8, C. Geyer18, T. Hirota19, M. Kawashima20, S. M. Kanne21, Mantua1, M. Davis1 and T. R. Farchione2, (1)FDA, Silver Spring, MD, (2) S. H. Kim22, Y. S. Kim23, H. H. Kim24, D. Korczak25, M. C. Lai26, B. L. Office of Neuroscience - Division of Psychiatry, FDA, Silver Spring, MD Leventhal24, Y. Makiyama20, L. Margari27, G. Masi28, L. Mazzone29, J. McGrath30, P. Morosini31, S. L. Nakajima32, A. Narzisi28, Y. Noda32, K. Nowell21, M. Polizzi33, J. Portolese34, M. P. Riccio33, M. Saito35, A. K. Simhal1, M. Siracusano36, S. Sotgiu14, J. Stroud1, F. Sumiya37, I. V. D. Schwartz38, M. Tarica11, Y. Tachibana39, T. N. Takahashi40, H. Tamon39, R. Tancredi28, L. Turacchi41, B. Vitiello42, A. Zuddas11, K. Merikangas43, M. P. Milham6 and A. Di Martino6, (1)Autism Center, Child Mind Institute, New York, NY, (2)Trinity College Dublin, Dublin, Ireland, (3)McMaster Autism Research Team, McMaster University, Hamilton, ON, Canada, (4)Unit of Developmental and Behavioral Pediatrics, First Department of Pediatrics, School of Medicine, Aghia Sophia Children’s Hospital, National and Kapodistrian University of Athens, Athens, Greece, (5) National Institute of Mental Health, Bethesda, MD, (6)Child Mind Institute, New York, NY, (7)Autism Research Center, Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada, (8)

63 • INSAR 2021 VIRTUAL ANNUAL MEETING • Thursday May 6, 2021

1:05 Medical Institute of Developmental Disabilities Research, Showa 1:45 231.004 Negative Impact and Predictors of Psychological Distress for University, Tokyo, Japan, (9)Department of Psychiatry, Zikei Hospital/ Autistic Adults across the Early Weeks of the Pandemic V. H. Bal1, E. Zikei Institute of Psychiatry, Okayama, Japan, (10)University of Wilkinson1, C. W. Lehman2, J. K. Law3, P. Feliciano4 and W. K. Chung5, California San Francisco, San Francisco, CA, (11)Child & Adolescent (1)Graduate School of Applied and Professional Psychology, Rutgers NeuroPsychiatry Unit, Dept of Biomedical Sciences, University of University-New Brunswick, Piscataway, NJ, (2)Simons Foundation, New Cagliari and “G.Brotzu” Hospital Trust, Cagliari,Italy, (12)Univ. “Federico York, NY, (3)Maryland Center for Developmental Disabilities, Kennedy II”, Naples, Italy, (13)Child Neuropsychiatry Unit- San Paolo Hospital- Krieger Institute, Baltimore, MD, (4)SFARI, Simons Foundation, New Department of Health Sciences, Università degli Studi-Milano, Milan, York, NY, (5)Department of Pediatrics, Columbia University, New York, Italy, (14)Unit of Child Neuropsychiatry, Department of Medical, NY Surgical and Experimental Sciences, University of Sassari, Sassari, Italy, (15)Child and Adolescent Neuropsychiatric Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy, (16) Panel Session Federal University of Paraná, Curitiba, Brazil, (17)Department of Medical and Psychiatric Comorbidity Public Health and Pediatric Sciences, Section of Child and Adolescent Neuropsychiatry, University of Turin, Turin, Italy, (18)Psychiary, Federal Panel 232 - Novel Findings to Inform Suicide Prevention for University of Paraná, Curitiba, Brazil, (19)University of California, San Autistic Individuals Francisco (UCSF), San Francisco, CA, (20)Institute of Neuropsychiatry, 12:45 PM - 2:45 PM Seiwa Hospital, Tokyo, Japan, (21)Thompson Center for Autism & Neurodevelopmental Disorders, Columbia, MO, (22)Psychiatry, Center for Autism and the Developing Brain, White Plains, NY, (23)Department Panel Chair: B. B. Maddox, University of North Carolina-Chapel Hill, of Psychiatry and Behavioral Sciences, University of California, San Chapel Hill, NC Francisco, San Francisco, CA, (24)Department of Psychiatry and Behavioral Sciences, University of California San Francisco, San Discussant: L. Morgan, American Association of Suicidology, Washington, Francisco, CA, (25)Department of Psychiatry, Hospital for Sick Children, DC Toronto, ON, Canada, (26)Autism Research Centre, Department of Psychiatry, University of Cambridge, Cambridge, ON, United Kingdom, The last decade has brought substantial progress in understanding the heightened (27)Child NeuroPsychiatry Unit, University of Bari “Aldo Moro”, Bari, risk of suicide in autistic people. Most research to date has focused on preva- Italy, (28)IRCCS Stella Maris Foundation, Pisa, Italy, (29)Systems lence, risk factors, assessment, and screening. While this work has addressed Medicine, Division of Child Psychiatry, University of Rome Tor Vergata, many important questions, there is a dearth of research on what happens after Rome, Italy, (30)Department of Psychiatry, Autism Genetics Group, an autistic person is determined to be at risk for suicide – how do we intervene appropriately and prevent suicide? The current panel focuses on this nascent School of Medicine, Trinity College, Dublin, Ireland, (31)Unità Operativa area of suicide and autism research. Sarah Cassidy will present data from the Neuropsichiatria Infantile ASST Lodi, Lodi, Italy, (32)Department of first psychological autopsy study to identify how many people who died by suicide Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan, had an autism diagnosis or high autistic traits. Mirabel Pelton will discuss how the (33)Department of Translational Medical Sciences, Section of Child Interpersonal Theory of Suicide can inform suicide prevention efforts for autistic and Adolescent Neuropsychiatry, University of Naples Federico II, individuals. Anne Huntjens will present on an ongoing trial of dialectical-behavioral Naples, Italy, (34)Clinical Hospital, Sao Paulo, Brazil, (35)Department therapy for reducing suicidal thoughts and behaviors in autistic adults. Brenna of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Maddox will share key stakeholder insights about tailoring the Safety Planning Hirosaki, Japan, (36)Biomedicine and Prevention, University of Rome Intervention for autistic adolescents and adults. Finally, Lisa Morgan, an autistic Tor Vergata, Rome, Italy, (37)PROTEA - Autism Spectrum Disorder adult and suicide loss survivor, will lead a discussion about the practical impli- Program, Department of Psychiatry, Universidade de São Paulo (USP), cations of these novel findings and future directions for reducing suicide risk in Sao Paulo, Brazil, (38)Medical Genetics Service/HCPA, Genetics autistic people of all ages. Department/UFRGS, Porto Alegre, Brazil, (39)Division of Infant and 12:45 232.001 Autism and Autistic Traits in Those Who Died By Suicide Toddler Mental Health, Department of Psychosocial Medicine, National in the UK S. A. Cassidy1, S. Au-Yeung1,2, A. Robertson3, H. Cogger- Centre for Child Health and Development, Tokyo, Japan, (40)Thompson Ward1, G. Richards4, C. Allison5, L. Bradley6,7, R. Kenny8, R. O’Connor3, Center for Autism & Neurodevelopmental Disorders, University of D. Mosse9, J. Rodgers10 and S. Baron-Cohen5, (1)School of Psychology, Missouri, Columbia, MO, (41)Child Neuropsychiatry Unit- San Paolo University of Nottingham, Nottingham, United Kingdom, (2)University of Hospital-Department of Health Sciences, Università degli Studi, Milan, Oxford, Oxford, United Kingdom, (3)University of Glasgow, Glasgow, Italy, (42)Department of Public Health and Pediatric Sciences, Section United Kingdom, (4)Newcastle University, Newcastle, United Kingdom, of Child and Adolescent Neuropsychiatry, University of Turin, Turin, MD, (5)Autism Research Centre, Department of Psychiatry, University Italy, (43)Genetic Epidemiology Research Branch, Intramural Research of Cambridge, Cambridge, United Kingdom, (6)Coventry University, Program, National Institute of Mental Health, Bethesda, MD Coventry, United Kingdom, (7)University of Bedfordshire, Luton, United Kingdom, (8)University of Cambridge, Cambridge, United Kingdom, (9) 1:25 231.003 Job Loss Predicts Worsening Depressive Symptoms Department of Anthropology and Sociology, SOAS University of London, for Young Adults with Autism: A COVID-19 Natural Experiment J. L. London, United Kingdom, (10)Population Health Sciences Institute, Taylor1, R. Adams2, F. Pezzimenti3, S. Zheng4 and S. Bishop5, (1) Newcastle University, Newcastle upon Tyne, United Kingdom Vanderbilt Kennedy Center, Nashville, TN, (2)Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, (3)Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN, (4) Psychiatry, University of California, San Francisco, San Francisco, CA, (5)University of California San Francisco, San Francisco, CA

64 • INSAR 2021 VIRTUAL ANNUAL MEETING • Thursday May 6, 2021

1:05 232.002 Suicide Prevention in Autistic Adults: What Can We Learn 1:25 233.003 Functional Convergence Across Genes Associated with from the Interpersonal Theory of Suicide? M. K. Pelton1, S. A. Cassidy2, Neuropsychiatric Disorders S. J. Sanders1 and J. Y. Y. An2, (1) A. Robertson3, H. Crawford4, S. Baron-Cohen5 and J. Rodgers6, (1) Department of Psychiatry, Weill Institute for Neuroscience, UCSF School Coventry University, Coventry, United Kingdom, (2)School of Psychology, of Medicine, San Francisco, CA, (2)School of Biosystem & Biomedical University of Nottingham, Nottingham, United Kingdom, (3)University Science, Korea University, Seoul, Korea, Republic of (South) of Glasgow, Glasgow, United Kingdom, (4)Faculty of Health and Life Sciences, Coventry University, Coventry, United Kingdom, (5)Autism 1:45 233.004 Parallel In Vivo Analysis of Large-Effect Autism Genes Research Centre, Department of Psychiatry, University of Cambridge, Implicates Neurogenesis and Estrogen in Risk and Resilience H. R. 1 1 1 1 1 1 Cambridge, United Kingdom, (6)Population Health Sciences Institute, Willsey , C. R. Exner , Y. Xu , A. Everitt , N. Sun , T. Nowakowski , R. 2 1 1 Newcastle University, Newcastle upon Tyne, United Kingdom M. Harland , A. J. Willsey and M. W. State , (1)University of California San Francisco, San Francisco, CA, (2)UC Berkeley, Berkeley, CA 1:25 232.003 The Effect of Dialectical Behavior Therapy in Autism Spectrum Patients with Suicidality and/or Self-Destructive Behavior: A Randomized Multi-Center Controlled Trial A. Huntjens1, W. van den Panel Session 2 3 4 5 6 Bosch , B. Sizoo , A. Kerkhof , M. Huibers and M. van der Gaag , (1)VU Novel Therapeutic Approaches (gene, protein or RNA targeted University, Amsterdam, Netherlands, (2)Scelta, Apeldoorn, Netherlands, (3)Dimence, Deventer, Netherlands, (4)CLINICAL PSYCHOLOGY, therapies) Amsterdam Public Mental Health Research Institute, Amsterdam, Panel 234 - Advances in Gene-Based Therapies in Netherlands, (5)Amsterdam Public Mental Health Research Institute, Neurodevelopmental Disorders Amsterdam, Netherlands, (6)Parnassia Psychiatric Institute, The Hague, 12:45 PM - 2:45 PM Netherlands

1:45 232.004 Tailoring an Evidence-Based Suicide Prevention Intervention Panel Chair: M. Sahin, Boston Children’s Hospital/Harvard Medical for Use with Autistic Adolescents and Adults B. B. Maddox1, S. R. Crabbe2, K. Myhre2, D. S. Mandell3 and S. Jager-Hyman2, (1) School, Boston, MA University of North Carolina-Chapel Hill, Chapel Hill, NC, (2)University of Pennsylvania, Philadelphia, PA, (3)Penn Center for Mental Health, Due to advances in genetics and genomics, we now realize that autism spectrum disorder (ASD) has a strong genetic basis. There is a list of over 100 validated University of Pennsylvania, Philadelphia, PA genes, variants in which are highly associated with autism. Meanwhile, gene based therapies have found their way into the central nervous system. Case in point is spinal muscular atrophy, for which three gene based treatments are now Panel Session FDA-approved. The combination of these advances have brought us to the door- Molecular Genetics step of an ear where gene-based therapies for various causes associated with ASD are being developed and tested. This panel is aimed to inform the INSAR Panel 233 - Large-scale Gene Discovery in Autism and community about the about the opportunities and challenges in developing gene- Converging Pathways of Autism Risk based therapies for autism-related disorders. We will highlight four talks focusing 12:45 PM - 2:45 PM on introducing genetic expression constructs into the brain and manipulating gene expression using anti-sense oligonucleotides. 12:45 234.001 Gene Therapy for Tuberous Sclerosis in Mouse Models X. Panel Chair: J. D. Buxbaum, Department of Psychiatry, Icahn School of Breakefield, Massachusetts General Hospital, Boston, MA Medicine at Mount Sinai, New York, NY 1:05 234.002 CRISPR Activation to Rescue SCN2A Haploinsufficiency Large-scale genetic and genomic studies have identified structural variants and in Autism Spectrum Disorder S. Tamura1, P. W. Spratt2, A. Nelson2, gene mutations that confer very high risk for ASD. These studies have implicated S. J. Sanders3, K. J. Bender4 and N. Ahituv5, (1)Bioengineering tens of recurrent structural variants and hundreds of genes in autism risk. This and Therapeutic Sciences, UCSF, San Francisco, CA, (2)UCSF, etiological heterogeneity is daunting, and is has overturned hopes for a single, San Francisco, CA, (3)Department of Psychiatry, Weill Institute for primary, molecular and/or cellular pathway for autism risk, hence precision medi- Neuroscience, UCSF School of Medicine, San Francisco, CA, (4) cine approaches will be critical for novel interventions. This panel will summarize Department of Neurology, UCSF, San Francicso, CA, (5)USCF, San the recent focus on whether the genetic and genomic discoveries converge into a Franciso, CA smaller number of pathways, which would greatly facilitate precision treatments. Knowing recurrent pathways to autism will also permit intervention in those that do 1:25 234.003 Targeted Augmentation of Nuclear Gene Output (TANGO) not have a defined genetic mutation. The speakers will share results on the func- Technology for Protein Upregulation I. Aznarez, Stoke Therapeutics, tional follow up of multiple genetic/genomic discoveries using molecular, cellular Bedford, MA and animal model approaches. 12:45 233.001 Neuroanatomical Convergence in Autism Related Mouse 1:45 234.004 From Impossible to Possible: A Personal Journey from Models J. Ellegood1, Y. Yee1 and J. P. Lerch1,2, (1)Mouse Imaging Diagnosis through Drug Development for Angelman Syndrome. A. Centre, Hospital for Sick Children, Toronto, ON, Canada, (2)Wellcome Berent, GeneTx Biotherapeutics, New York, NY; Foundation for Centre for Integrative Neuroimaging (WIN), University of Oxford, Oxford, Angelman Syndrome Therapeutics, New York, NY United Kingdom

1:05 233.002 Using 3D Models of Brain Development to Study Convergence in ASD A. Gordon, UCLA, Los Angeles, CA

65 • INSAR 2021 VIRTUAL ANNUAL MEETING • Thursday May 6, 2021

Panel Session Special Interest Groups (SIGs) Social Cognition and Social Behavior SIG 503 - Special Interest Group: Autism and Related Panel 235 - Global Insights on Understanding and Reducing Disorders in the Context of Humanitarian Emergencies Autism Stigma 3:00 PM - 4:30 PM 12:45 PM - 2:45 PM SIG Leader: Ramzi Nasir, MD, MPH Panel Chair: E. Cage, Department of Psychology, University of Stirling, SIG Co-Leader: Alaa Ibrahim Stirling, United Kingdom The Autism and Related Disorders (ARD) in the Context of Humanitarian Emer- Discussant: J. den Houting, Macquarie University, Sydney, Australia gencies SIG (2019 and 2020) served as a platform of communication and col- laboration between autism researchers and key stakeholders in the humanitarian setting. Building on this network, in this year’s SIG, we aim to address knowledge Stigma involves the discrediting of an identity or a negative perception of differ- gaps and bring forward solutions in the area of intervention focusing on technical, entness. Research shows that autism is a stigmatised identity, with non-autistic methodological and ethical aspects in the humanitarian setting. people holding both explicit and implicit negative biases against autistic people. Furthermore, stigma can be a life-limiting experience for autistic people: Exposure to stigmatising events and attitudes has been shown to relate to worse mental health outcomes and higher psychological distress for autistic people both in Special Interest Groups (SIGs) cross-sectional and longitudinal studies. Therefore, understanding stigma is an SIG 504 - Special Interest Group: Autism Research with the important endeavour within research, in order to reduce and prevent stigma. This Postmortem Brain panel brings together cutting-edge and novel research exploring autism stigma from the perspectives of non-autistic and autistic researchers, using a range of 3:00 PM - 4:30 PM methods, in different settings, from multiple geographic regions. For example, the panel brings together research on stigma in educational settings in Scotland, the efficacy of a stigma-reducing intervention in non-autistic college students in the SIG Leader: David Amaral, PhD United States, qualitative experiences of stigma and community connectedness SIG Co-Leader: Brie Wamsley, PhD from a worldwide autistic sample, and a comparative cross-cultural study of stigma between the United States and South Korea. Insights from this panel will highlight Postmortem brain research in disorders such as Alzheimer’s and Parkinson’s dis- means for reducing stigma and improving autism acceptance globally. ease has provided the clearest evidence about causes and potential treatments. This SIG aims to foster postmortem brain research of Autism Spectrum Disorder. It 12:45 235.001 “It’s Being a Part of a Grand Tradition, a Grand will bring together geneticists, neuroanatomists, neuropathologists, immunologists Counter-Culture”: A Qualitative Investigation of Autistic Community and others to energize a renaissance in postmortem research in autism. It will also Connectedness, Stigma, and Identity M. Botha1, B. Dibb2 and D. M. be an introduction to this area of research for trainees and mature scientists alike. Frost3, (1)Psychology, University of Stirling, Stirling, United Kingdom, (2) School of Psychology, University of Surrey, Guildford, United Kingdom, (3)Thomas Coram Research Unit, University College London, London, Special Interest Groups (SIGs) United Kingdom SIG 505 - Special Interest Group: Improving Health Outcomes 1:05 235.002 Investigating the Implicit and Explicit Attitudes of Primary Across the Lifespan: Harnessing Data from Individuals on the School Educators in Scotland Towards Autism E. Cage and T. Doyle, Autism Spectrum, Families, Clinicians, and Care Systems Department of Psychology, University of Stirling, Stirling, United Kingdom 3:00 PM - 4:30 PM 1:25 235.003 Effects of Autism Acceptance Training on Explicit and Implicit Biases Towards Autism D. R. Jones, K. M. DeBrabander and N. SIG Leader: Beth Malow, MD J. Sasson, University of Texas at Dallas, Richardson, TX SIG Co-Leader: Jennifer Ames, PhD 1:45 235.004 A Cross-Cultural Comparison of Stigma Toward Autism in 1 2 3 This SIG will continue to explore health conditions and healthcare needs in autistic the US and South Korea S. Y. Kim , J. E. Cheon , K. Gillespie-Lynch individuals across the lifespan. Our ability to leverage larger health datasets and 2 and Y. H. Kim , (1)Duksung Women’s University, Seoul, Korea, Republic patient-reported outcomes across multiple healthcare systems is expanding rap- of (South), (2)Yonsei University, Seoul, Korea, Republic of (South), (3) idly. These data provide a deeper, longitudinal understanding of health problems Department of Psychology, College of Staten Island; CUNY Graduate and care disparities in autism, tie health conditions to other aspects of quality of Center, Brooklyn, NY life and lay important groundwork for interventions to improve health and wellbe- ing.

66 • INSAR 2021 VIRTUAL ANNUAL MEETING • Thursday May 6, 2021

Special Interest Groups (SIGs) SIG 506 - Special Interest Group: Transition Age Youth with Autism: Are We Meeting the Needs of an Understudied Population? 3:00 PM - 4:30 PM

SIG Leaders: Helen Genova, PhD and Connie Sung, PhD SIG Co-Leaders: Kari Sherwood, MS, MEd, MSW and Aditi Arora, Ph.D While most research in autism is focused on younger children, transition age youth are a vulnerable, understudied and underserved subpopulation, highlighting the need for increased awareness and investigation of much needed services. We hope that this SIG will increase collaborations of scientists, clinicians and com- munity members, which will lead to innovative research, increased services and practical guidelines for supporting transition age youth with autism.

Events Event 605 - Student Social and Booth (North America) 5:00 PM - 6:00 PM

This year, the Student Social and STC Booth have combined (virtual) forces! Join us online for peer networking and to learn more about the STC at one of three times, intended to be accessible to students and trainees globally. The Student Social offers a great opportunity for students and trainees to network with one another in small groups. One breakout room within each Social will comprise our virtual Booth where students and trainees can learn more about INSAR events and resources relevant to them. These events will be facilitated by STC committee members, so it’s also a chance for students and trainees to meet the STC mem- bers and learn more about our committee!

67 • INSAR 2021 VIRTUAL ANNUAL MEETING • Friday May 7, 2021

Events Events Event 606 - Student Social and Booth (Europe/Africa) Event 607 - Cultural Diversity Career Advancement Program 9:00 AM - 10:00 AM (C-CAP) Launch Event 12:00 PM - 4:30 PM This year, the Student Social and STC Booth have combined (virtual) forces! Join us online for peer networking and to learn more about the STC at one of three The C-CAP Launch Event will include a Keynote Address with Q&A, a Panel times, intended to be accessible to students and trainees globally. The Student presentation with a Q&A session, as well as breakout sessions for networking and Social offers a great opportunity for students and trainees to network with one topical discussions. About C-CAP: The Cultural Diversity Career Advancement another in small groups. One breakout room within each Social will comprise our Program (C-CAP) is a new initiative for the Cultural Diversity Committee. C-CAP virtual Booth where students and trainees can learn more about INSAR events aims to facilitate the career development of individuals primarily from LMIC and and resources relevant to them. These events will be facilitated by STC committee historically underrepresented groups from the US and other HIC who are inter- members, so it’s also a chance for students and trainees to meet the STC mem- ested in a career involving ASD research by providing mentoring and training. bers and learn more about our committee! Researchers at any stage of their career (early, mid, late) who believe they can benefit from the program may participate.

Events C-CAP Keynote: Vikram Patel, London School Of Hygiene and Tropical Event 110 - INSAR Annual Business Meeting Medicine, London, United Kingdom 10:00 AM - 11:30 AM C-CAP Panelists:

INSAR members are invited to the society’s annual business meeting to hear an Gauri Divan, Child Development Group, Sangath, New Delhi, India update on INSAR year-round activities. We will also recognize newly inducted INSAR Fellows, incoming and outgoing board members and organizers of this Petrus J. de Vries, Centre for Autism Research in Africa, Division of Child year’s meeting. & Adolescent Psychiatry, University of Cape Town, Cape Town, South Africa

Alexia Rattazzi, PANAACEA, Buenos Aires, Argentina

Waganesh A. Zeleke, Counseling, Psychology and Special Education, Duquesne University, Pittsburgh, PA

68 • INSAR 2021 VIRTUAL ANNUAL MEETING • EPOSTERS ON-DEMAND ACCESS WITH ONLINE Q&A

SESSION TOPIC AREA PAGE

Poster 401 Adult Outcome: Medical, Cognitive, Behavioral, Social, Adaptive, Vocational...... 70 Poster 402 Affective Neuroscience...... 76 Poster 403 Animal Models...... 76 Poster 404 Behavioral Genetics...... 77 Poster 405 Behavioral Neuroscience...... 78 Poster 406 Biomarkers (molecular, phenotypic, neurophysiological, etc)...... 78 Poster 407 Cellular Models/Stem Cells...... 80 Poster 408 Clinical Genetics...... 80 Poster 409 Clinical Trial Design...... 80 Poster 410 Clinical Trial Endpoints...... 81 Poster 411 Cognition: Attention, Learning, Memory...... 82 Poster 412 Cognitive Neuroscience...... 83 Poster 413 Communication and Language...... 84 Poster 414 Diagnostic, Behavioral, Sensory and Intellectual Screening and Assessment...... 88 Poster 415 Early Development (< 48 months)...... 94 Poster 416 Early Phase Drug Discovery...... 97 Poster 417 Education...... 97 Poster 418 Emotion...... 99 Poster 419 Epidemiology/Population Studies...... 101 Poster 420 Epigenetics...... 104 Poster 421 Ethics...... 104 Poster 422 Family Issues and Stakeholder Experiences...... 104 Poster 423 Gastrointestinal (GI)...... 109 Poster 424 Immunology...... 110 Poster 425 International and Cross-Cultural Perspectives...... 110 Poster 426 Interventions - Non-pharmacologic - Infant, Toddler, and Preschool...... 113 Poster 427 Interventions - Non-pharmacologic - School-Age, Adolescent, Adult...... 116 Poster 428 Interventions - Pharmacologic...... 120 Poster 429 Medical and Psychiatric Comorbidity...... 120 Poster 430 Molecular Genetics...... 123 Poster 431 Molecular Neuroscience...... 123 Poster 433 Neurochemistry...... 124 Poster 434 Neuroimaging...... 124 Poster 435 Neurophysiology/Electrophysiology...... 127 Poster 436 Neuropsychology...... 128 Poster 437 Pediatrics...... 128 Poster 438 Postmortem Studies...... 129 Poster 439 Rare Genetic Disorders...... 129 Poster 440 Sensory Physiology...... 131 Poster 441 Sensory, Motor, and Repetitive Behaviors and Interests...... 131 Poster 442 Service Delivery/Systems of Care...... 135 Poster 443 Social Cognition and Social Behavior...... 138 Poster 444 Social Neuroscience...... 142 Poster 446 Technological Approaches...... 142 Poster 447 Technology Demonstration / Devices...... 144

70 • INSAR 2021 VIRTUAL ANNUAL MEETING • EPOSTERS ON-DEMAND ACCESS WITH ONLINE Q&A

Poster Session 401.012 Assessing Theory of Mind in Young Adults Who Have Lost the ASD Diagnosis Using the Social Attribution and Reading the Mind in Poster 401 - Adult Outcome: Medical, Cognitive, the Eyes Tests E. Taverna1, R. P. Thomas2, L. R. Naigles2, M. J. West2, Behavioral, Social, Adaptive, Vocational A. Mohan2, M. F. Dieckhaus2, J. Crutcher3, M. J. Stabile2, D. A. Fein2 and I. M. Eigsti2, (1)Department of Psychological Sciences, University 401.001 “Realizing the Problem Wasn’t Necessarily Me”: An of Connecticut, Storrs, CT, (2)Psychological Sciences, University of Exploration of the Meaning of Childhood Adversity and Resilience in Connecticut, Storrs, CT, (3)NIMH, Bethesda, MD the Lives of Autistic Adults G. A. Heselton1, G. R. Rempel1 and D. B. Nicholas2, (1)Athabasca University, Edmonton, AB, Canada, (2) 401.013 Associations between Social Communication Difficulties, University of Calgary, Edmonton, AB, Canada Genetic Risk of Autism and Adult BMI in a Population-Based Cohort A. Ly1, J. Heron2, E. Stergiakouli3 and D. Rai2, (1)Population Health 401.002 A Comparison of Gender Differences in Self-Reported Sciences, Bristol Medical School, MRC Integrative Epidemiology Unit, Camouflaging of Autistic Traits between Diagnosed Autistic, Autistic Bristol, United Kingdom, (2)Population Health Sciences, Bristol Medical High-Trait and Non-Autistic Young Adults. V. L. Milner, E. Colvert and F. School, Centre for Academic Mental Health, Bristol, United Kingdom, (3) Happé, Social, Genetic and Developmental Psychiatry Centre, Institute MRC Integrative Epidemiology Unit, Bristol Medical School, University of of Psychiatry, Psychology and Neuroscience, King’s College London, Bristol, Bristol, United Kingdom London, United Kingdom 401.015 Autistic-Led Post-Diagnostic Peer Support for Adults: A 401.003 A Meta-Analysis and Critical Review of Metacognitive Qualitative Examination of Community Priorities. C. J. Crompton1, Accuracy in Autism Spectrum Disorder K. Carpenter and D. M. Williams, S. Hallett2, A. C. Stanfield1 and S. Fletcher-Watson3, (1)Division of University of Kent, Canterbury, United Kingdom Psychiatry, University of Edinburgh, Edinburgh, United Kingdom, (2) Autistic Mutual Aid Society Edinburgh, Edinburgh, United Kingdom, 401.004 A Novel Measure of Adaptive Functioning in Young Adults (3)Salvesen Mindroom Research Centre, University of Edinburgh, with ASD R. A. Wulff1, M. K. Krug1, A. M. Iosif2, P. D. Harvey3 and M. Edinburgh, United Kingdom Solomon4, (1)Department of Psychiatry & Behavioral Sciences, UC Davis MIND Institute, Sacramento, CA, (2)Public Health Sciences, 401.016 Being an Autistic Parent : Benefits and Challenges M. University of California Davis, Davis, CA, (3)University of Miami, Miami, Désormeaux-Moreau1, V. Rochon2, S. Powell2, M. H. Poulin3, C. L. FL, (4)Department of Psychiatry and Behavioral Sciences, The Medical Normand4, E. Hérault5 and M. Couture6, (1)École de réadaptation, Investigation of Neurodevelopmental Disorders (MIND) Institute, UC Université de Sherbrooke, Sherbrooke, QC, Canada, (2)Université de Davis School of Medicine, University of California Davis, Sacramento, Sherbrooke, Sherbrooke, QC, Canada, (3)Psychoeducation, UQAT, CA Rouyn-Noranda, QC, Canada, (4)Psychoéducation et psychologie, Université du Québec en Outaouais, Gatineau, QC, Canada, (5)FMSS, 401.006 Adults with Autism Spectrum Disorder Show Steeper Age 3001, 12e av. Nord, Université de Sherbrooke, Sherbrooke, QC, Canada, Relationships with Decreasing Amygdala Size: Sex Differences and (6)Rehabilitation, Universite de Sherbrooke, Sherbrooke, QC, Canada Associations with Autism Symptoms B. A. Pagni1, N. Guerithault1, M. Walsh1, J. R. Cook1 and B. B. Braden2, (1)Arizona State University, 401.017 Biology Interrupted: How Autistic Adults Develop Anxiety Tempe, AZ, (2)College of Health Solutions, Arizona State University, through an Intolerance of Uncertainty Framework K. M. Normansell- Tempe, AZ Mossa1, J. Rodgers2, M. Freeston3, N. C. Russell4 and M. South5, (1) Clinical Psychology, Brigham Young University, Provo, UT, (2)Population 401.007 Ageing on the Autism Spectrum: Mental Health and Quality Health Sciences Institute, Newcastle University, Newcastle upon Tyne, of Life across the Adult Lifespan A. Roestorf1, P. Howlin2 and D. M. United Kingdom, (3)School of Psychology, Newcastle University, Bowler1, (1)Autism Research Group, Department of Psychology, City, Newcastle upon Tyne, United Kingdom, (4)Psychology, Brigham Young University of London, London, United Kingdom, (2)King’s College University, Provo, UT, (5)Psychology & Neuroscience, Brigham Young London, London, United Kingdom University, Provo, UT

401.008 Aging and Autism: A Qualitative Exploration of Quality of 401.018 COVID-19 Effects on the Transition Support Networks of Life in Older Age. D. L. Francis1, G. R. Stewart2, R. A. Charlton3 and F. Autistic Young Adults and Their Parents E. McGhee Hassrick1, M. Happé2, (1)King’s College London, London, United Kingdom, (2)Social, Potros2, J. Ventimiglia3, S. Murphy4 and E. Marta2, (1)A..J. Drexel Autism Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Institute, Drexel University, Philadelphia, PA, (2)Drexel University, Psychology and Neuroscience, King’s College London, London, United Philadelphia, PA, (3)AJ Drexel Autism Institute, Drexel University, Kingdom, (3)Psychology, Goldsmiths University of London, London, Philadelphia, PA, (4)A.J. Drexel Autism Institute, Drexel University, United Kingdom Philadelphia, PA

401.009 Alexithmyia, Autistic Traits, and Depression Predicts 401.019 Camouflaging in Autistic Adults: A Qualitative Study Poorer Quality of Life D. Mason and F. Happé, Social, Genetic and Exploring Camouflaging Onset, Continuity, Change over Time and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology Psychosocial Influences B. Loo1, T. Teo1, D. J. Leong2 and I. Magiati1, and Neuroscience, King’s College London, London, United Kingdom (1)Dept. of Psychology, National University of Singapore, Singapore, Singapore, (2)Disabled People’s Association, Singapore, Singapore 401.011 An Exploration of Caregiver-Reported Strengths and Challenges of Adults with Autism and/or Intellectual Disability E. 401.021 Combining Statistical Approaches to Capture Age-Related Wilkinson1, L. T. V. Vo2, S. Wilson3, Z. London1 and V. H. Bal1, (1) Cognitive Differences in Autistic Adults C. Torenvliet, A. P. Groenman, Graduate School of Applied and Professional Psychology, Rutgers T. A. Radhoe, J. Agelink van Rentergem and H. M. Geurts, University of University-New Brunswick, Piscataway, NJ, (2)Western New England Amsterdam, Amsterdam, Netherlands University, Springfield, MA, (3)Genetics, Rutgers University, Piscataway, NJ

71 • INSAR 2021 VIRTUAL ANNUAL MEETING • EPOSTERS ON-DEMAND ACCESS WITH ONLINE Q&A

401.022 Community Participation in Autistic Young Adults B. 401.029 Development of the Suicide Ideation Attributes Scale- Tomaszewski1,2, L. J. Hall3, J. R. Steinbrenner1, L. E. Smith DaWalt4, Modified (SIDAS-M) in Autistic Adults D. Hedley1, P. Batterham2, E. K. Hume1 and S. L. Odom5, (1)Frank Porter Graham Child Development Gallagher3, K. Denney4, S. M. Hayward5, M. Uljarevic6, S. M. Bury4, A. Institute, University of North Carolina at Chapel Hill, Chapel Hill, NC, Clapperton7, J. Robinson6,8, J. N. Trollor9 and M. A. Stokes10, (1)Olga (2)TEACCH Autism Program, Psychiatry, University of North Carolina, Tennison Autism Research Centre, La Trobe University, Melbourne, Chapel Hill, NC, (3)Special Education, San Diego State University, VIC, Australia, (2)Centre for Mental Health Research, Research School San Diego, CA, (4)University of Wisconsin-Madison Waisman Center, of Population Health, The Australian National University, Canberra, Madison, WI, (5)Frank Porter Graham Child Development Institute, ACT, Australia, (3)Aspect Research Centre for Autism Practice, Autism University of North Carolina at Chapel Hill, San Diego, CA Spectrum Australia, Sydney, NSW, Australia, (4)Olga Tennison Autism Research Centre, School of Psychology and Public Health, La Trobe 401.023 Comparing Fitness Levels of College Students with and University, Melbourne, VIC, Australia, (5)School of Health and Social 1 2 3 without Autism Spectrum Disorder T. Todd , N. Miodrag , J. Jensen , Development, Deakin University, Burwood, VIC, Australia, (6)School 3 4 3 N. Nnoli , J. Bricker and B. Endinjok , (1)Kinesiology, California State of Psychological Sciences, University of Melbourne, Melbourne, VIC, University, Northridge, CA, (2)Child and Adolescent Development, Australia, (7)School of Population and Global Health, University of California State University Northridge, Northridge, CA, (3)Kinesiology, Melbourne, Melbourne, VIC, Australia, (8)Centre for Youth Mental Health, California State University Northridge, Northridge, CA, (4)California State Orygen, Melbourne, VIC, Australia, (9)Department of Developmental University Northridge, Northridge, CA Disability Neuropsychiatry, UNSW, Sydney, NSW, Australia, (10)Deakin University, Burwood, VIC, Australia 401.024 Comparison of Age of Diagnosis and Sex Differences in Parent Report of Autism Characteristics C. Shulman, The School of 401.030 Diagnosis of Autism in Girls: Evidence from India P. Malhi1 Social Work, The Hebrew University of Jerusalem, Jerusalem, Israel and P. Singhi2, (1)Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Chandigarth,, India, (2)Depatment of 401.025 Comparison of Gender Cognition, Gender Dysphoric Pediatrics, Post Graduate Institute of Medical Education and research, Feelings, Mentalising, and ASD Traits Among Neurotypical Cisgender, Chandigarh, India Neurotypical Transgender, and Autistic Cisgender Individuals. A. Kallitsounaki and D. M. Williams, University of Kent, Canterbury, United 401.031 Diagnostic Timing and Gender Diversity: Impacts on Kingdom Camouflaging Behaviors in Autism G. McQuaid1, N. R. Lee2 and G. L. Wallace3, (1)George Mason University, Fairfax, VA, (2)Department 401.026 Coping Strategies and Service Needs of Autistic Adults of Psychology, Drexel University, Philadelphia, PA, (3)The George in the SPARK Cohort during the COVID-19 Pandemic N. Nagpal1, S. Washington University, Washington, DC Xiao2, K. Diehl2, A. Daniels2, J. K. Law3, C. W. Lehman2, P. Feliciano4, 5 6 S. Consortium and W. K. Chung , (1)160 5th Ave, 7th FL, Simons 401.032 Earlier MMN Peak in Unaffected Siblings of Taiwanese Foundation, New York, NY, (2)Simons Foundation, New York, NY, Adults with Autism Spectrum Disorder Y. L. Chien1, M. H. Hsieh2 and S. (3)Maryland Center for Developmental Disabilities, Kennedy Krieger S. F. Gau3, (1)National Taiwan University, Taipai, Taiwan, (2)Department Institute, Baltimore, MD, (4)SFARI, Simons Foundation, New York, NY, of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan, (3) (5)SPARKForAutism.org, New York, NY, (6)Department of Pediatrics, Department of Psychiatry, National Taiwan University Hospital & College Columbia University, New York, NY of Medicine, Taipei, Taiwan

401.027 Decreased GABA Concentration in Supplementary Motor 401.033 Effects of Elevated Autistic Traits on the Aging Cerebellum Area Disrupts Hand-Foot Coordination Movements in Individuals A. Job Said1, B. B. Braden2, B. Woodruff3, R. J. Caselli4 and G. L. 1,2 3 with Autism Spectrum Disorder Y. Umesawa , K. Matsushima , R. Wallace1, (1)The George Washington University, Washington, DC, (2) 1 2 1 Fukatsu , Y. Terao and M. Ide , (1)Department of Rehabilitation for College of Health Solutions, Arizona State University, Tempe, AZ, (3) Brain Functions, Research Institute of National Rehabilitation Center for Mayo Clinic Arizona, Scottsdale, AZ, (4)Mayo Clinic Arizona, Phoenix, Persons with Disabilities, Tokorozawa, Saitama, Japan, (2)Department AZ of Medical Physiology, Faculty of Medicine, Kyorin University, Mitaka, Tokyo, Japan, (3)Faculty of Medicine, Kansai Medical University, 401.034 Employment Related Changes Following COVID-19: A Hirakata, Osaka, Japan Longitudinal Examination of Mental Health and Work-Related Need Satisfaction of Autistic Employees Y. Goldfarb1, E. Gal2 and O. Golan3, 401.028 Defining Autistic Burnout Using Grounded Delphi Method: (1)Department of Occupational Therapy, University of Haifa, Haifa, Autistic Burnout through the Eyes of Experts By Lived Experience J. Israel, (2)Occupational Therapy, University of Haifa, Haifa, Israel, (3) 1,2 1 1 3 1 Higgins , J. Weise , J. N. Trollor , E. Pellicano and S. Arnold , (1) Department of Psychology, Bar-Ilan University, Ramat-Gan, Israel Department of Developmental Disability Neuropsychiatry, UNSW, Sydney, NSW, Australia, (2)Cooperative Research Centre for Living with 401.035 Evaluating Employment Outcomes & Perceptions in Autism (Autism CRC), Brisbane, QLD, Australia, (3)Macquarie School of Adolescents and Young Adults with ASD N. A. Dalloul1, A. Davis2, A. Education, Macquarie University, Sydney, NSW, Australia C. Cho3, R. A. Wulff4 and M. Solomon5, (1)UC Davis Psychiatry and Behavioral Sciences, Sacramento, CA, (2)UC Davis MIND Institute, Sacramento, CA, (3)Human Development & Psychology, University of California, Los Angeles, Los Angeles, CA, (4)Department of Psychiatry & Behavioral Sciences, UC Davis MIND Institute, Sacramento, CA, (5)Department of Psychiatry and Behavioral Sciences, The Medical Investigation of Neurodevelopmental Disorders (MIND) Institute, UC Davis School of Medicine, University of California Davis, Sacramento, CA

72 • INSAR 2021 VIRTUAL ANNUAL MEETING • EPOSTERS ON-DEMAND ACCESS WITH ONLINE Q&A

401.036 Every Cloud Has a Silver Lining: Three Case Studies of 401.045 Health-Related Outcomes, Service Use, and Healthcare Community Participation Change in Adults with ASD Following the Transition Among Adolescents: Preliminary Follow-up of Adolescents Onset of the COVID-19 Pandemic J. Nagle1, A. Pearl2, M. Salzer3 and Identified with and without Autism during Early Childhood in the United D. Alexander1, (1)Psychiatry, Penn State College of Medicine, Hershey, States, 2018–2020 P. S. Powell1, L. Wiggins2, J. Daniels3, G. S. Dichter4, PA, (2)Department of Psychiatry/Division of Autism Services, Penn C. Bradley5, R. Pretzel6, J. Kloetzer6, M. D. Fallin7, S. E. Levy8, K. State Hershey/Penn State College of Medicine, Hershey, PA, (3)Temple Pazol1, A. Scott1, B. Robinson1, A. Sims9 and E. P. Kasten10, (1)Division University, Philadelphia, PA of Human Development and Disability, Centers for Disease Control and Prevention, National Center on Birth Defects and Developmental 401.038 Executive Functioning and Adjustment to College in Disabilities, Atlanta, GA, (2)Centers for Disease Control and Prevention, 1 2 Students with and without Autistic Traits D. Davidson , A. Winning , Atlanta, GA, (3)University of North Carolina at Chapel Hill, Chapel Hill, 3 2 E. Hilvert and D. Morales , (1)Psychology, Loyola University Chicago, NC, (4)Psychiatry, University of North Carolina, Chapel Hill, NC, (5) Chicago, IL, (2)Loyola University Chicago, Chicago, IL, (3)Loyola Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, University, Chicago, IL NC, (6)University of North Carolina - Chapel Hill, Chapel Hill, NC, (7) Bloomberg School of Public Health, Johns Hopkins University, Baltimore, 401.039 Experiences of Social Isolation and Loneliness in Middle- MD, (8)Division of Developmental and Behavioral Pediatrics, Center Aged and Older Autistic Adults G. R. Stewart1, E. Luedecke2, R. for Autism Research, Children’s Hospital of Philadelphia; Perelman A. Charlton3 and F. Happé1, (1)Social, Genetic and Developmental School of Medicine at the University of Pennsylvania, Philadelphia, Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, PA, (9)Michigan State University, East Lansing, MI, (10)Clinical and King’s College London, London, United Kingdom, (2)King’s College Translational Sciences Institute, Michigan State University, East Lansing, London, London, United Kingdom, (3)Psychology, Goldsmiths University MI of London, London, United Kingdom 401.046 Heterogeneity in Adults with Autism Spectrum Conditions 401.040 Exploring Problematic Internet Use and Gaming in (ASC): Subgroup Identification and Validation T. A. Radhoe, J. Agelink Young Adults with Autism Spectrum Disorder C. L. Normand1, M. H. van Rentergem, C. Torenvliet, A. P. Groenman and H. M. Geurts, Fisher2, S. M. Fecteau3, E. Roy4, K. Tremblay5 and M. H. Poulin6, (1) University of Amsterdam, Amsterdam, Netherlands Psychoéducation et psychologie, Université du Québec en Outaouais, Gatineau, QC, Canada, (2)Counseling, Educational Psychology, and 401.047 Identity after an Autism Diagnosis: Gender, Self-Esteem Special Education, Michigan State University, East Lansing, MI, (3) and Wellbeing K. Corden1, R. Brewer1 and E. Cage2, (1)Department Psychoéducation et psychologie, Université du Québec en Outaouais, of Psychology, Royal Holloway, University of London, Egham, United St-Jérôme, QC, Canada, (4)Psychoeducation and Psychology, Kingdom, (2)Department of Psychology, University of Stirling, Stirling, Université du Québec en Outaouais, Gatineau, QC, Canada, (5) United Kingdom Développement humain et social, UQAT, Rouyn-Noranda, QC, Canada, (6)Psychoeducation, UQAT, Rouyn-Noranda, QC, Canada 401.048 Impact of COVID-19 on Community Mobility and Participation for Individuals with Autism Spectrum Disorders B. Pfeiffer1, 401.041 Exploring the Experiences of Social Interaction and E. Brusilovskiy2, M. Salzer2 and A. Pomponio2, (1)Rehabilitation 1,2 Communication in Autistic Adults: A Qualitative Approach E. Deane , Sciences, Temple University, Philadelphia, PA, (2)Temple University, 1,2 1,2 1,2 1,2,3 1,2 D. Smith , G. Wiltshire , E. Yates , W. Lawson and M. H. Black , Philadelphia, PA (1)School of Occupational Therapy, Social Work and Speech Pathology, Curtin University, Perth, WA, Australia, (2)Curtin Autism Research 401.049 Impact of Life Events on the Mental Health of Adults with Group, Curtin University, Perth, WA, Australia, (3)Cooperative Research ASD M. Hollocks1, G. Baird2, C. Lord3, A. Pickles4, T. Charman5 and E. Centre for Living with Autism (Autism CRC), Brisbane, QLD, Australia Simonoff4, (1)King’s College London, London, United Kingdom, (2)Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom, (3) 401.042 Factor Structure and Construct Validity of the Transition University of California, Los Angeles, Los Angeles, CA, (4)King’s College 1 2 Readiness and Employability Evaluation K. Bowman , B. Tomaszewski , London, Institute of Psychiatry, Psychology and Neuroscience, London, 1 1 1 C. B. Klein , S. M. Matherly and L. G. Klinger , (1)TEACCH Autism United Kingdom, (5)Department of Psychology, Institute of Psychiatry, Program; Psychiatry, University of North Carolina, Chapel Hill, NC, (2) Psychology and Neuroscience, King’s College London, London, United TEACCH Autism Program, Psychiatry, University of North Carolina, Kingdom Chapel Hill, NC 401.050 Improving Online Employment Training for Transition Aged Youth with ASD/IDD R. L. Dodds1, L. Fisler1 and H. J. Kuo2, (1)Special Education & Counseling, California State University Los Angeles, Los 401.044 Financial Wellbeing of Autistic Adults in Australia R. Y. 1 2 2 1 2,3 Angeles, CA, (2)Department of Counseling, Educational Psychology and Cai , K. P. Haas , E. Gallagher , A. M. Love and V. Gibbs , (1)Aspect Special Education, Michigan State University, East Lansing, MI Research Centre for Autism Practice, Autism Spectrum Australia, Melbourne, VIC, Australia, (2)Aspect Research Centre for Autism Practice, Autism Spectrum Australia, Sydney, NSW, Australia, (3)Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia 401.052 Interventions for Toe Walking in Individuals with Autism Spectrum Disorders: A Systematic Review G. Valagussa1,2, S. Baruffini2, V. Panzeri2, D. Piscitelli2,3, E. Grossi1, C. Cornaggia2 and C. Perin2, (1) Autism Research Unit, Villa Santa Maria Foundation, Tavernerio, Italy, (2)Program in Physical Therapy, University of Milano-Bicocca, School of Medicine and Surgery, Monza, Italy, (3)School of Physical and Occupational Therapy, McGill University, Montreal, QC, Canada

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401.053 Labor and Delivery Experiences of Autistic Women: 401.062 Online Peer Support for Autistic Medical Doctors M. A Qualitative Research Study L. F. Lewis, A. M. Cestrone, H. R. Doherty1, A. Fossi2, C. Brown3, M. Johnson4, L. Carravallah5, K. Scheibner, E. R. Beaudoin and H. L. Schirling, College of Nursing & Rabenstein6 and W. Ross2,7, (1)Anaesthesia, Our Lady’s Hospital, Health Sciences, University of Vermont, Burlington, VT Navan, Ireland, (2)Jefferson Center for Autism & Neurodiversity, Philadelphia, PA, (3)University Hospital Southampton NHS Foundation 401.054 Levels of Autism Spectrum Traits Are Inversely Correlated Trust., Southampton, United Kingdom, (4)Goyt Valley Medical Practice, with Psychological Resilience Factors during the COVID-19 Pandemic High Peak, United Kingdom, (5)Department of Padiatrics and Human 1,2,3 1,3 1,3 1,3 S. C. Taylor , Z. L. Smernoff , B. N. Gehringer , H. C. Dow , A. Development, Michigan State University, East Lansing, MI, (6)East 1,3 1,3 1,3 1,3 1 Langer , E. Rawot , S. Steeman , O. Eshraghi , L. Almasy , D. J. Sussex healthcare Trust, East Sussex, United Kingdom, (7)Autism 1 1 3,4 1,3 Rader , M. Bucan , R. Barzilay and E. S. Brodkin , (1)Department of Inclusion Resources, Wynnewood, PA Genetics, University of Pennsylvania, Philadelphia, PA, (2)Neuroscience Graduate Group, University of Pennsylvania, Philadelphia, PA, (3) 401.063 Parenting on the Spectrum: A Systematic Scoping Review Department of Psychiatry, University of Pennsylvania, Philadelphia, of Parenting Experiences and the Mental Health of Parents with ASD PA, (4)Department of Child and Adolescent Psychiatry and Behavioral or Autistic Traits M. R. A. Putri1, K. Williams1,2 and G. R. Cox1,3, (1) Science, Children’s Hospital of Philadelphia, Philadelphia, PA Department of Paediatrics, Monash University, Melbourne, VIC, Australia, (2)Monash Children’s Hospital, Clayton, VIC, Australia, (3) 401.055 Longitudinal Investigation of the Impact of Minority Stress Neurodevelopment and Disability, Royal Children’s Hospital, Melbourne, and Autistic Community Connectedness on Mental Health in the Autistic VIC, Australia Communit M. Botha1, B. Dibb2, P. Rusconi3 and D. M. Frost4, (1) Psychology, University of Stirling, Stirling, United Kingdom, (2)University 401.064 Peas in a Pod: Oral History Reflections on Autistic Identity of Surrey, Guildford, United Kingdom, (3)School of Psychology, in Family and Community By Late-Diagnosed Adults R. Lilley1, W. University of Surrey, Guildford, United Kingdom, (4)Thomas Coram Lawson1,2, G. Hall1,2, J. Mahony1,2, S. Arnold2,3, J. N. Trollor2,3, M. Yudell4 Research Unit, University College London, London, United Kingdom and E. Pellicano1,2, (1)Macquarie School of Education, Macquarie University, Sydney, NSW, Australia, (2)Cooperative Research Centre 401.057 Maternal Autism: Parental Reflective Functioning, Family for Living with Autism (Autism CRC), Brisbane, QLD, Australia, (3) Adjustment and Children’s Outcomes F. N. Acar, K. Slowinska and S. Department of Developmental Disability Neuropsychiatry, UNSW, Anns, University of Sussex, Brighton, United Kingdom Sydney, NSW, Australia, (4)Dornsife School of Public Health, Drexel University, Philadelphia, PA 401.058 Medication Frequency and Health Services Utilization in 1 2 3 Latin-American Adults with Autism D. Lecusay , A. Torres , D. Valdez , 401.065 Perceived Negative Impact in Caregivers of Individuals with 4 5 6 4 7 A. Rattazzi , A. Rosoli , G. Garrido , S. H. Cukier , C. S. Paula , R. A. Autism Spectrum Disorders: A Longitudinal Study from Late Childhood 8 2 Garcia and C. Nava , (1)Psychology Department, University of Texas to Early Adulthood K. Christopher, R. Elias and C. Lord, University of Rio Grande Valley, Edinburg, TX, (2)Psychological Science, University California, Los Angeles, Los Angeles, CA of Texas Rio Grande Valley, Edinburg, TX, (3)Universidad de Buenos Aires- FLACSO, Buenos Aires, Argentina, (4)PANAACEA, Buenos 401.066 Performance on the Transition Readiness and Employability Aires, Argentina, (5)Projects, Organizacion Estados Iberoamericanos, Evaluation (TREE) in Transition-Age Youth with and without Autism Santo Domingo, Dominican Republic, (6)Universidad de la República, Spectrum Disorder C. B. Klein1, K. Bowman1, S. M. Matherly1, B. Montevideo, Uruguay, (7)Developmental Disorder Program, Universidade Tomaszewski2 and L. G. Klinger1, (1)TEACCH Autism Program; Presbiteriana Mackenzie, São Paulo, Brazil, (8)Clínica Las Condes, Psychiatry, University of North Carolina, Chapel Hill, NC, (2)TEACCH Santiago, Chile., Santiago, CHILE Autism Program, Psychiatry, University of North Carolina, Chapel Hill, NC 401.059 Mental Health Crisis Assessment Among Adults with Autism Spectrum Disorder in an Outpatient Neuropsychiatry Clinic E. A. Berich- 401.067 Physical Health and Quality of Life Differ By Biological Anastasio1,2, A. Ready3, A. Maclay3, R. Wisner-Carlson1, R. Schloesser1 Sex and Age of Autism Diagnosis in an Adult SPARK Sample. J. and L. Kalb4,5, (1)Point-of-Care Research & Innovation, Sheppard Pratt, K. Richards1, S. E. Transue1 and K. O. Gotham2, (1)Department of Towson, MD, (2)Mental Health, Johns Hopkins Bloomberg School Psychology, Rowan University, Glassboro, NJ, (2)Psychiatry and of Public Health, Baltimore, MD, (3)Data Management, Analysis and Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN Reporting, Sheppard Pratt, Towson, MD, (4)Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, MD, (5) 401.068 Positive ASD-Traits: The Self-Perceptions of Adults with 1 2 Department of Mental Health, Johns Hopkins University, Baltimore, MD ASD M. Dean and N. Mueller , (1)Education, California State University, Channel Islands, Camarillo, CA, (2)Education, California State University 401.060 Moving (as an) Autistic Person- Preliminary Findings D. Channel Islands, Camarillo, CA Mason, V. L. Milner and F. Happé, Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, 401.069 Post-High School Daily Living Skills in Autism Spectrum 1 2 1 King’s College London, London, United Kingdom Disorder E. B. Clarke , J. B. McCauley and C. Lord , (1)University of California, Los Angeles, Los Angeles, CA, (2)Saint Mary’s College of 401.061 Objective and Subjective Psychosocial Outcomes in Adults California, Moraga, CA with Autism Spectrum Disorder: A 6-Year Longitudinal Study A. M. Scheeren1, M. Buil1, P. Howlin2, M. Bartels1 and S. Begeer1, (1)Vrije 401.070 Postsecondary Education Achievement and Employment 1 Universiteit, Amsterdam, Netherlands, (2)King’s College London, London, Success in Adults with Self-Reported Autism Diagnosis S. Y. Park , M. 2 1 United Kingdom South and E. Smith , (1)Clinical Psychology, Brigham Young University, Provo, UT, (2)Psychology & Neuroscience, Brigham Young University, Provo, UT

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401.072 Predictors of Perceived Stress Among Independent Adults 401.083 Self-Reported Mood-Changing Life Experiences in Adults with Autism during the COVID-19 Pandemic S. Xiao1, N. Nagpal1, A. with Autism: What Makes Them Happy and Unhappy? C. Parenteau1, Daniels1, J. K. Law2, C. W. Lehman1, P. Feliciano3, S. Consortium4 and S. Zheng2, L. A. Lampinen2, S. S. Ghods3, F. Pezzimenti4, R. Adams5, J. W. K. Chung5, (1)Simons Foundation, New York, NY, (2)Maryland Center L. Taylor6 and S. Bishop3, (1)University of California, San Francisco, San for Developmental Disabilities, Kennedy Krieger Institute, Baltimore, MD, Francisco, CA, (2)Psychiatry, University of California, San Francisco, (3)SFARI, Simons Foundation, New York, NY, (4)SPARKForAutism.org, San Francisco, CA, (3)University of California San Francisco, San New York, NY, (5)Department of Pediatrics, Columbia University, New Francisco, CA, (4)Psychiatry and Behavioral Sciences, Vanderbilt York, NY University Medical Center, Nashville, TN, (5)Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, (6)Vanderbilt Kennedy Center, 401.073 Preliminary Evidence of Dynamic Control Differences Nashville, TN in Curve Negotiation in Drivers with and without Autism Spectrum Disorder G. M. Sherrod1, R. K. Kana2, B. McManus1, H. M. Bednarz1, 401.084 Self-Reported Real-World Executive Function Skills and A. M. Svancara1, P. M. Pawar1 and D. Stavrinos1, (1)Department of Associations with Anxiety and Depression in Autistic Adults S. A. Stahl1, Psychology, University of Alabama at Birmingham, Birmingham, AL, (2) L. R. Guy2, E. M. Lamarche1, B. Tomaszewski3 and B. B. Maddox1, Department of Psychology, University of Alabama, Tuscaloosa, AL (1)Psychiatry, UNC TEACCH Autism Program, Chapel Hill, NC, (2) Psychiatry, UNC TEACCH Autism Program, Greensboro, NC, (3)Frank 401.075 Quality of Life and Associated Factors in Adolescents and Porter Graham Child Development Institute, University of North Carolina Young Adults with Autism Spectrum Disorder: Evaluation of Self-Reports at Chapel Hill, Chapel Hill, NC and Parent Proxy-Reports in a Danish Clinical Cohort Followed for 8-18 Years. S. H. Avlund1,2, L. Clausen3,4, D. Schendel5, P. H. Thomsen6 and 401.086 Sibling Relationships in Families of Children with and without M. Joergensen7,8, (1)Department of Child and Adolescent Psychiatry, Autism: Specificity and Commonality According to the Siblings’ and the Research Unit., Aarhus University Hospital, Psychiatry., Aarhus N, Mothers’ Perspectives Y. Rum1, D. A. Zachor2, Y. Armony1, E. Daniel3 Denmark, (2)Child and Adolescent Psychiatry, Aalborg University and E. Dromi4, (1)Tel Aviv University, Tel Aviv, Israel, (2)The Autism Hospital, Aalborg, Denmark, (3)Department of Child and Adolescent Center/ALUT, Pediatrics, Tel Aviv University /Shamir (Assaf Harofeh) Psychiatry, Research Unit, Aarhus Unirversity Hospital, Psychiatry, Medical Center, Zerifin, Israel, (3)Constantiner School of Education, Tel- Aarhus N, Denmark, (4)Department of Clinical Medicine, Aarhus Aviv University, Tel Aviv, Israel, (4)Constantiner School of Education, Tel University, Faculty of Health, Aarhus N, Denmark, (5)Aarhus University, Aviv University, Tel Aviv, Israel Aarhus, Denmark, (6)Department of Child and Adolescent Psychiatry, Research Unit, Aarhus University Hospital, Psychiatry, Aarhus N, 401.087 Social Connection and Assurance, Anxiety, and Autism in Denmark, (7)Central Region Denmark, Special Area Autism, Hinnerup, Adulthood S. R. Dufresne, O. Ward and E. T. Crehan, Eliot-Pearson Denmark, (8)Aarhus Unirversity Hospital, Psychiatry, Aarhus N, Denmark Department of Child Study & Human Development, Tufts University, Medford, MA 401.077 Ready 2 Work: Development of a User-Informed Employment Website for Job Seekers with Autism J. Phan1, L. 401.088 Social Support and Psychological Distress in Autistic Adults 1,2 3 4 4 Whittingham1, C. Bishop1, N. Kenyeres2, R. Ensor1, B. Jichici1, W. in Quebec N. Jeanneret , V. Caron , M. Giroux , L. Guerrero , M. 5 6 3 2 Roberts3, B. Di Rezze4, N. E. Walker5, J. Seymour6 and P. Burnham Ouimet , B. Forgeot d’Arc , I. Soulieres and I. Courcy , (1)CIUSSS Riosa1, (1)Brock University, St. Catharines, ON, Canada, (2)HelpScout Nord-de-l’Île-de-Montréal, Montréal, QC, Canada, (2)Département de Canada, St. Catharines, ON, Canada, (3)isand, Toronto, ON, Canada, Sociologie, Université du Québec à Montréal, Montréal, QC, Canada, (4)School of Rehabilitation Science, McMaster University, Hamilton, ON, (3)Département de Psychologie, Université du Québec à Montréal, Canada, (5)Kerry’s Place Autism Services, Aurora,, ON, CANADA, (6) Montréal, QC, Canada, (4)Aut’Créatifs, Montréal, QC, Canada, (5) York ASD Partnership, Toronto, ON, Canada Neurodiversité, Montréal, QC, Canada, (6)Département de Psychiatrie, Université de Montréal, Montréal, QC, CANADA 401.078 Remembering to Remember: Contextual References As a Mechanism to Support Time-Based Prospective Memory in Autistic 401.089 Speech Rhythm Hierarchy: Towards Understanding of 1 Adults A. Roestorf1, D. M. Williams2 and C. Grainger1, (1)Psychology, Phonological Characteristics in Autism Spectrum Disorder T. Daikoku , 2 2 1,3 University of Stirling, Stirling, Scotland, United Kingdom, (2)University of S. Kumagaya , S. Ayaya and Y. Nagai , (1)International Research Kent, Canterbury, United Kingdom Center for Neurointelligence, The University of Tokyo, Tokyo, Japan, (2) Research Center for Advanced Science and Technology, The University 401.080 Seeing in the Mind’s Eye. a Study of Aphantasia in Relation of Tokyo, Tokyo, Japan, (3)Institute for AI and Beyond, The University of to Episodic Memory and Episodic Future Thinking in Autistic Adults A. Tokyo, Tokyo, Japan Roestorf1, D. M. Williams2 and C. Grainger1, (1)Psychology, University of Stirling, Stirling, Scotland, United Kingdom, (2)University of Kent, 401.090 Successful Employment Experiences of a Large Sample of 1 2 3 Canterbury, United Kingdom Adults with Autism B. Schwartzman , A. Sturm and D. Flanagan , (1) Vanderbilt University, Nashville, TN, (2)Psychology, Loyola Marymount 401.081 Self-Advocacy in Autistic and Non-Autistic College Students University, Los Angeles, CA, (3)Loyola Marymount University, Los S. P. Santhanam1, K. Wilson2, M. Paige2 and A. Craft2, (1)Dept. of Angeles, CA Speech, Language, Hearing Sciences, Metropolitan State University of Denver, Denver, CO, (2)Towson University, Towson, MD 401.091 Systematic Review of Evidence-Based Practices for Improving Daily Living Skills in Young Adults with Autism Spectrum 401.082 Self-Determination As a Mediator between Autism Traits and Disorders R. Schaaf1 and R. L. Dumont2, (1)Occupational Therapy, Quality of Life H. E. Andrews, D. Hedley and S. M. Bury, Olga Tennison Thomas Jefferson University, Philadelphia, PA, (2)Occupational Therapy, Autism Research Centre, School of Psychology and Public Health, La Thomas Jefferson University, Collegeville, PA Trobe University, Melbourne, VIC, Australia

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401.092 The Association of Sleep Quality and Loneliness with 401.102 Verbal, Social and Motor Skills in Minimally-Speaking Autistic Perceived Physical and Mental Health Status in Autistic Adults N. C. Children: Baseline Profiles and Intervention Effects on Observational Russell1, D. B. Kay1, D. Cimmino1, Z. Simmons2 and M. South3, (1) Assessments and Movement Kinematics E. J. Weisblatt1, A. Mckinney2, Psychology, Brigham Young University, Provo, UT, (2)Brigham Young K. Hotson3, Z. B. Ahmed3, C. M. Dias4, D. Ben Shalom5, J. Foster6, University, Provo, UT, (3)Psychology & Neuroscience, Brigham Young S. Villar7, S. Murphy8, A. Jatkar9, S. Langhorne10 and M. Belmonte11, University, Provo, UT (1)Department of Psychology, University of Cambridge, Cambridge, United Kingdom, (2)SMC Research Centre for Learning Difficulties, 401.093 The Cognitive Profile of Older Adults with High Autistic University of Edinburgh, Edinburgh, United Kingdom, (3)Division of 1 2 1 Traits. G. R. Stewart , R. A. Charlton and F. Happé , (1)Social, Genetic Psychology, Nottingham Trent University, Nottingham, United Kingdom, and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology (4)Peterborough Neurodevelopmental Service, Cambridgeshire and and Neuroscience, King’s College London, London, United Kingdom, (2) Peterborough NHS Foundation Trust, Peterborough, United Kingdom, Psychology, Goldsmiths University of London, London, United Kingdom (5)Department of Foreign Literatures and Linguistics, Ben-Gurion University, Beer Sheva, Israel, (6)Institute of Psychiatry, Psychology, and 401.094 The Effect of Aging on Prospective Memory in Autism Neuroscience, King’s College London, London, United Kingdom, (7)MRC Spectrum Condition A. P. Groenman1, C. Torenvliet1, T. A. Radhoe1, Biostatistics Unit, University of Cambridge, Cambridge, United Kingdom, J. Agelink van Rentergem1, A. M. Altgassen2 and H. M. Geurts1, (1) (8)Institute for Health Research, University of Bedfordshire, Luton, United University of Amsterdam, Amsterdam, Netherlands, (2)Johannes Kingdom, (9)Department of Psychology and Neuroscience, University Gutenberg-Universität Mainz, Mainz, Germany of North Carolina, Chapel Hill, NC, (10)Division of Neuroscience & 401.095 The Employers` Perspective: From Qualification to Experimental Psychology, University of Manchester, Manchester, United Sustainable Employment of Persons with ASD K. Reich, BBW Kingdom, (11)Com DEALL Trust, Bangalore, India Abensberg, Abensberg, Germany 401.103 What Is Autistic Burnout? a Thematic Analysis of Autistic 1 1 401.096 The Phenomenology of Gender Dysphoria in Autistic Adults Adults’ Online Forum and Twitter Posts J. Mantzalas , A. L. Richdale , 2 3 1 K. Cooper1, W. Mandy2, C. Butler1 and A. Russell3, (1)University of Bath, A. Adikari , J. Lowe and C. Dissanayake , (1)Olga Tennison Autism Bath, United Kingdom, (2)University College London, London, United Research Centre, La Trobe University, Melbourne, VIC, Australia, (2) Kingdom of Great Britain and Northern Ireland, (3)Psychology/Centre for Centre for Data Analytics and Cognition, La Trobe University, Melbourne, Applied Autism Research, University of Bath, Bath, United Kingdom VIC, Australia, (3)Public Health Palliative Care Unit and Olga Tennison Autism Research Centre, La Trobe University, Melbourne, VIC, Australia 401.097 The Relationship between Repetitive Behaviours and Sensory Processing in Autistic and Non-Autistic Adults and Impact on 401.104 Why Should I Disclose? Providing Clear Information for 1 2 3 Self-Efficacy G. Nwaordu and R. A. Charlton, Psychology, Goldsmiths Autistic Individuals to Consider A. M. Love , R. Y. Cai and V. Gibbs , (1) University of London, London, United Kingdom Aspect Research Centre for Autism Practice, Flemington, VIC, Australia, (2)Aspect Research Centre for Autism Practice, Autism Spectrum 401.098 Topics and Timing of Sexuality and Relationship Education Australia, Melbourne, VIC, Australia, (3)Aspect Research Centre for for Autistic and Neurotypical Adults in the United States X. Yang1, E. T. Autism Practice, Autism Spectrum Australia, Sydney, NSW, Australia Crehan2 and A. Donaghue1, (1)Child Study and Human Development, Tufts University, Medford, MA, (2)Eliot-Pearson Department of Child 401.106 ‘Autistic Burnout’: Exploring Experiences of Stress and 1 1 Study & Human Development, Tufts University, Medford, MA Burnout in Autistic and Non-Autistic Adults D. Ali , G. R. Stewart , W. Mandy2 and F. Happé1, (1)Social, Genetic and Developmental Psychiatry 401.099 Trajectories of Major Health Issues throughout Adulthood Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s in Autistic Individuals K. Byrne, K. Sterrett and C. Lord, University of College London, London, United Kingdom, (2)University College London, California, Los Angeles, Los Angeles, CA London, United Kingdom of Great Britain and Northern Ireland

401.100 Understanding How Young Adults with Autism Spectrum 401.107 “It’s Nice to Connect to People without the Pressure Disorder Are Coping with the COVID-19 Pandemic A. Cilluffo1, L. of in-Person Meetings”: Autistic Women’s Experiences during the Fryfogle1, M. Gallagher1, N. Nugent1, K. Wilson1 and A. R. Dallman2, COVID-19 Pandemic and Attending a Virtual Peer Support Group (1)Towson University, Towson, MD, (2)Occupational Therapy & A. Tint1, D. Share-Strom1,2, D. Zener2, B. Shemovski Thomas2, Y. Occupational Science, Towson University, Towson, MD Hamdani1,3, C. Kassee4,5, Y. Lunsky1 and M. C. Lai1,4,6,7,8,9, (1)Azrieli Adult Neurodevelopmental Centre, Centre for Addiction and Mental 401.101 Understanding the Relationship between Comorbid Health, Toronto, ON, Canada, (2)Dori Zener & Associates, Toronto, Psychopathology and Social Skills Gains for Young Adults with ON, Canada, (3)Department of Occupational Science and Occupational 1,2 ASD Following the UCLA PEERS® Intervention L. D. Solouki , C. Therapy, University of Toronto, Toronto, ON, Canada, (4)The Margaret 1 1 1 1 3 Moody , Y. S. Lograsso , J. E. Lerner , H. R. Goodman , E. Denluck and Wallace McCain Centre for Child, Youth and Family Mental Health, 1 and E. A. Laugeson , (1)UCLA Semel Institute for Neuroscience and Centre for Addiction and Mental Health, Toronto, ON, Canada, (5) Human Behavior, Los Angeles, CA, (2)Graduate School of Education Dalla Lana School of Public Health, University of Toronto, Toronto, and Psychology, Pepperdine University, Los Angeles, CA, (3)UCLA ON, Canada, (6)Autism Research Centre, Department of Psychiatry, Department of Psychiatry, PEERS lab: UCLA PEERS Clinic, Los University of Cambridge, Cambridge, United Kingdom, (7)Department of Angeles, CA Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan, (8)Department of Psychiatry, University of Toronto, Toronto, ON, Canada, (9)The Hospital for Sick Children, Toronto, ON, Canada

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401.108 “Just Invite Us”: Autistic Adults’ Recommendations for Poster Session Developing More Accessible Physical Activity Opportunities. A. M.

Colombo-Dougovito1, J. Blagrave2 and S. Healy3, (1)Kinesiology, Health Poster 403 - Animal Models Promotion, & Recreation, University of North Texas, Denton, TX, (2) Kinesiology, California State University, Chico, Chico, CA, (3)Behavioral 403.001 A Multifactorial Model for Autism Spectrum Disorder: Health and Nutrition, University of Deleware, Newark, DE Studying Gene-Environment Interactions between Genetic CNTNAP2 Deletion and Exposure to Maternal Immune Activation during Pregnancy F. L. Haddad1, C. DeOliveira1, M. Maroon1 and S. Schmid2, (1)University of Western Ontario, London, ON, Canada, (2)Anatomy and Cell Biology, Poster Session University of Western Ontario, London, ON, Canada Poster 402 - Affective Neuroscience 403.002 Altered Developmental Trajectory in Prenatal Valproate Rat Model of Autism Spectrum Disorder K. Anshu1, S. Srinath2 and L. T. 402.001 Brainstem Morphometric Differences in Children with Autism 1 Spectrum Disorder, Developmental Coordination Disorder and Those Rao , (1)Neurophysiology, NIMHANS, Bengaluru, India, (2)Child and Typically Developing P. Bosco1, L. A. Harrison2,3, A. Retico4, C. Butera2, Adolescent Psychiatry, NIMHANS, Bengaluru, India 5 5 2,3 6 S. Calderoni , F. Muratori , L. aziz-Zadeh and J. Delafield-Butt , (1) 403.003 Altered Maternal-Pup Behaviours in Developmental Vitamin IRCCS Stella Maris Foundation, Pisa, Italy, (2)USC Mrs. T.H. Chan D-Deficient Rats M. K. Tamang1, S. Alexander1,2, A. Ali1 and D. Eyles1,2, Division of Occupational Science and Occupational Therapy, University (1)Queensland Brain Institute, The University of Queensland, Brisbane, of Southern California, Los Angeles, CA, (3)Brain and Creativity Institute, QLD, Australia, (2)Queensland Centre for Mental Health Research, Dornsife College of Letters, Arts and Sciences, University of Southern Wacol, QLD, Australia California, Los Angeles, CA, (4)Istituto Nazionale di Fisica Nucleare, Pisa, Pisa, Italy, (5)Department of Clinical and Experimental Medicine, 403.004 Assessment of Autism-Relevant Behaviors in C57BKS/J University of Pisa, Pisa, Italy, (6)Laboratory for Innovation in Autism, Leptin Receptor Deficient (db/+)Mice G. G. Gould1, S. M. Greene1, Y. University of Strathclyde, Glasgow, United Kingdom R. Sanchez2, N. Pathapati1 and G. N. Davis1, (1)Cellular & Integrative Physiology, University of Texas Health Science Center at San Antonio, 402.002 Frontal Alpha Asymmetry As a Predictor of Emotion San Antonio, TX, (2)School of Nursing, University of Texas Health Regulation and Strategy Use in Toddlers with ASD and TD S. R. Science Center at San Antonio, San Antonio, TX Edmunds1,2, R. Iqbal1, A. Sagon1,3, V. E. Sanchez4 and S. Faja1, (1) Boston Children’s Hospital, Boston, MA, (2)Psychiatry, Harvard School of 403.005 Attention to the Eyes Is Related to Maturation of the Visual Medicine, Boston, MA, (3)Suffolk University, Boston, MA, (4)Division of Object Pathway in Infant Rhesus Macaques A. L. Ford1,2, A. Wang2, J. Developmental Medicine, Boston Children’s Hospital, Boston, MA Steele3, C. Payne4, S. Moss3, T. Jonesteller3, J. Wesson3, E. Feczko5, E. Earl6, L. Li7, M. Styner8, D. Fair9, W. Jones10, J. Bachevalier3, M. 402.003 Intervention Engagement and Social Motivation Predict Sanchez3 and Z. Kovacs Balint3, (1)Marcus Autism Center, Atlanta, 1 2 Increased Social Reward Response in ASD E. Baker , E. Veytsman , A. CT, (2)Emory University, Atlanta, GA, (3)Yerkes National Primate 2 3 2 M. Martin , T. Choy and K. K. Stavropoulos , (1)University of California Research Center, Emory University, Atlanta, GA, (4)Atlanta Speech Riverside, Riverside, CA, (2)Graduate School of Education, University of School, Atlanta, GA, (5)Pediatrics, University of Minnesota, Medical California Riverside, Riverside, CA, (3)University of California, Riverside, School, Minneapolis, MN, (6)Oregon Health & Science University, Riverside, CA Portland, OR, (7)Marcus Autism Center, Children’s Healthcare of Atlanta, 402.004 Oxytocin Modulates Visual Attention Depending on the Emory University, Atlanta, GA, (8)Psychiatry and Computer Science, Social Context: A MEG Study in Adolescents with ASD A. Korisky1, A. University of North Carolina, Chapel Hill, NC, (9)Masonic Institute for the Goldstein1,2 and I. Gordon1,2, (1)Gonda Brain Research Center, Bar-Ilan Developing Brain, Minneapolis, MN, (10)Pediatrics, Emory University, University, Ramat Gan, Israel, (2)Department of Psychology, Bar-Ilan Atlanta, GA University, Ramat Gan, Israel 403.006 Bench to Bedside and Back: A Longitudinal Translational Study of Motor Outcome Measures in Individuals and Preclinical Models 402.005 Predicting Electrophysiological Indices of Change in a 1 2 1 RCT of a Group-Based Social Skills Intervention for Youth with ASD E. of Angelman Syndrome S. P. Petkova , J. Duis and J. L. Silverman , Kang1 and M. D. Lerner2, (1)Department of Psychology, Montclair State (1)Department of Psychiatry and Behavioral Sciences, MIND Institute University, Montclair, NJ, (2)Department of Psychology, Stony Brook University of California Davis School of Medicine, Sacramento, CA, University, Stony Brook, NY (2)Pediatrics - Clinical Genetics and Metabolism, Children’s Hospital Colorado Anschutz, Aurora, CO 402.006 Vocal Emotion Recognition in Adolescents with and without ASD in Response to Child Versus Adult Voices S. Boateng1, T. C. Day1 403.007 C58/J Mice with Autistic-like Phenotype Display Dendritic and M. D. Lerner2, (1)Psychology, Stony Brook University, Stony Brook, Spines’ Abnormalities in the Prefrontal Cortex and Hippocampus I. NY, (2)Department of Psychology, Stony Brook University, Stony Brook, Barón-Mendoza, E. Maqueda-Martínez, M. De la Fuente-Granada, M. NY Martínez-Marcial and A. González-Arenas, Instituto de Investigaciones Biomédicas, UNAM, Mexico City, Mexico

403.008 Characterization of Behavior and Neurochemistry Following Social Stimulation in Oxytocin-Receptor-Mutants: Zebrafish Autism Model S. Shams1 and L. Westberg2, (1)Pharmacology, University of Gothenburg, Gothenburg, Sweden, (2)Department of Pharmacology, University of Gothenburg, Gothenburg, Sweden

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403.009 Characterization of KMT5B Haploinsufficiency in Mice Poster Session Recapitulates Neurodevelopmental Disorder Phenotypes H. F. Stessman1, R. Wickramasekara1, B. Robertson2, J. Hallgren1 and J. Poster 404 - Behavioral Genetics Hulen1, (1)Pharmacology & Neuroscience, Creighton University School of Medicine, Omaha, NE, (2)Creighton University School of Medicine, 404.001 A Preliminary Investigation into Childhood Autism and Omaha, NE Attention Deficit Hyperactivity Phenotypes in PAX6 Confirmed Aniridia N. Oluonye1,2, M. Moosajee3,4,5,6 and N. Dale7,8, (1)Neurodisability 403.011 Enriched Housing Alters the Trajectory of Pup Brain Early Service, Great Ormond Street Hospital for Children NHS Foundation Development Via Maternal Behaviour C. Ligneul1, R. Allemang-Grand2, Trust, London, United Kingdom, (2)Paediatrics, Moorfields Eye Hospital M. Kaller1, J. Ellegood3 and J. P. Lerch4, (1)WIN, University of Oxford, NHS Foundation Trust, London, United Kingdom, (3)The Francis Oxford, United Kingdom, (2)The Hospital for Sick Children, Toronto, ON, Crick Institute, London, United Kingdom, (4)Ophthalmology, Great Canada, (3)Mouse Imaging Centre, Hospital for Sick Children, Toronto, Ormond Street Hospital for Children, London, United Kingdom, (5) ON, Canada, (4)Wellcome Centre for Integrative Neuroimaging (WIN), Molecular Ophthalmology, UCL Institute of Ophthalmology, London, University of Oxford, Oxford, ON, United Kingdom United Kingdom, (6)Genetics, Moorfields Eye Hospital, London, United Kingdom, (7)Psychological Services / Neurodisability service, Great 403.012 GABA b Receptor Agonist R-Baclofen Reverses Altered Ormond Street Hospital for Children NHS Foundation Trust, London, Auditory Reactivity and Filtering in the Cntnap2 Knock-out Rat Model for United Kingdom, (8)UCL Great Ormond Street Hospital Institute of Child 1 1 2 Neurodevelopmental Disorders D. Moehrle , W. Wang , S. Whitehead Health, London, United Kingdom and S. Schmid3, (1)University of Western Ontario, London, ON, Canada, (2)Anatomy & Cell Biology, University of Western Ontario, London, ON, 404.002 Binocular Rivalry Dynamic Discriminates Autism Genetic Canada, (3)Anatomy and Cell Biology, University of Western Ontario, Subgroups Y. B. Choi1, J. Mentch1,2, C. Van Wicklin2 and C. Robertson1, London, ON, Canada (1)Psychological and Brain Sciences, Dartmouth College, Hanover, NH, (2)Massachusetts Institute of Technology, Cambridge, MA 403.013 Phenotyping Mouse Models of Angelman Syndrome Using Multidimensional Behavioral Clustering J. K. Tanas1, Y. Elgersma2,3 404.003 Developmental Milestone Attainment in Genetic Conditions and M. S. Sidorov4, (1)Children’s National Hospital, Washington, DC, from SFARI Registries J. Wickstrom1, S. Bishop2, C. Farmer1, L. (2)Department of Neuroscience, Erasmus Medical Center, Rotterdam, Green Snyder3, A. R. Mitz1, S. J. Sanders4 and A. Thurm1, (1)National Netherlands, (3)ENCORE Expertise Center for Neurodevelopmental Institute of Mental Health, Bethesda, MD, (2)University of California San Disorders, Erasmus Medical Center, Rotterdam, Netherlands, (4)Center Francisco, San Francisco, CA, (3)Simons Foundation, New York, NY, (4) for Neuroscience Research, Children’s National Hospital, Washington, Department of Psychiatry, Weill Institute for Neuroscience, UCSF School DC of Medicine, San Francisco, CA

403.014 Prenatal Exposure to Maternal Immune Activation Leads 404.004 Genetic Risk Profiling of Insomnia in Autism M. Niarchou1, to Altered Dendritic Morphology in Dorsolateral Prefrontal Cortex in a E. V. Singer1, B. A. Malow2 and L. Davis1, (1)Vanderbilt University Non-Human Primate Model K. L. Hanson1, R. K. Weir2, A. M. Iosif3, J. Medical Center, Nashville, TN, (2)Sleep Disorders Division, Department Van de Water4, C. S. Carter5, A. K. McAllister6, M. D. Bauman7 and C. M. of Neurology, Vanderbilt University Medical Center, Nashville, TN Schumann8, (1)Psychiatry, University of California Davis MIND Institute, Sacramento, CA, (2)Innovation & Enterprise Department, University 404.005 Polygenic Contributions to Face-Sensitive Cortical 1 2 College London, London, United Kingdom, (3)Public Health Sciences, Responses in Infants with a Family History of Autism A. Gui , C. Tye , 1 3 3 4 5 University of California Davis, Davis, CA, (4)MIND Institute, University R. Harrison , H. Patel , C. Curtis , G. Pasco , T. Charman , M. H. 6 6 7 4 of California, Davis, Davis, CA, (5)Department of Psychiatry and Johnson , E. J. Jones , E. Meaburn and &. The BASIS Team , (1) Behavioral Sciences, University of California Davis, Sacramento, CA, (6) Centre for Brain and Cognitive Development, Birkbeck University of Center for Neuroscience, University of California Davis, Davis, CA, (7) London, London, United Kingdom, (2)Department of Child & Adolescent UC Davis MIND Institute, Sacramento, CA, (8)MIND Institute, UC Davis, Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King’s Sacramento, CA College London, London, United Kingdom, (3)King’s College London, London, United Kingdom, (4)Institute of Psychiatry, Psychology and 403.015 Sex-Dependent Influence of Post-Weaning Environmental Neuroscience, King’s College London, London, United Kingdom, (5) Enrichment in Angelman Syndrome Model Mice A. D. Kloth, J. A. Department of Psychology, Institute of Psychiatry, Psychology and Cosgrove, L. K. Kelly and E. A. Kiffmeyer, Department of Biology, Neuroscience, King’s College London, London, United Kingdom, (6) Augustana University, Sioux Falls, SD Centre for Brain and Cognitive Development, Birkbeck, University of London, London, United Kingdom, (7)Psychological Sciences, Birkbeck 403.016 The Mitochondrial Transporter Aralar: A New Target College, London, United Kingdom for Treatment of Social Behavior Deficits A. K. Kanellopoulos1, V. Mariano1, T. Achsel1 and C. Bagni1,2, (1)Department of Fundamental 404.006 Relationships between Autism Risk Genes, Vascular Neurosciences, University of Lausanne, Lausanne, Switzerland, (2) Signaling, and Behavior in Autism Spectrum Disorder: A Pilot Study Biomedicine and Prevention, University of Rome Tor Vergata, Rome, G. Barnes1, X. Qiu2, K. Ojha1, R. Jagadapillai3, E. Gozal4 and S. Italy Zou5, (1)University of Louisville School of Medicine, Louisville, KY, (2) Jiangxi Provincial Children’s Hospital, Jiangxi, China, (3)Departments of Pediatrics, PRI, University of Louisville, Louisville, KY, (4)Pediatrics, PRI, University of Louisville, Louisville, KY, (5)Child Healthcare, Jiangxi Provincial Children’s Hospital, Jiangxi, China

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404.007 Serotonin Transporter Genotype Predicts Adaptive Behavior Outcomes in Children with Autism K. A. Shapiro1, E. DiMarino2, S. Goh2, Poster Session N. Hattangadi2, E. Hildebrandt2, B. Johnson3, M. Johnson1, M. C. Steele4, Poster 406 - Biomarkers (molecular, phenotypic, B. Wong5 and E. J. Marco4, (1)Cortica Healthcare, Westlake Village, CA, neurophysiological, etc) (2)Cortica Healthcare, San Diego, CA, (3)Cortica Healthcare, Carlsbad, CA, (4)Cortica Healthcare, San Rafael, CA, (5)Cortica Healthcare, 406.001 Adversarial Machine Learning for Confound Disentangled Glendale, CA Autism Biomarkers W. E. Carson1, D. Y. Isaev2, S. Major3, G. Sapiro4, 5 6 404.008 The Cumulative Load of Early Medical Adversities on G. Dawson and D. Carlson , (1)Department of Biomedical Engineering, the Causal Pathway for Autism - a Population-Based Twin Study T. Duke University, Durham, NC, (2)Duke Center for Autism and Brain Carlsson1, S. Bolte2 and M. Taylor3, (1)Department of Women’s & Development, Durham, NC, (3)Duke Center for Autism and Brain Children’s Health, Center for Neurodevelopment Disorders at Karolinska Development, Department of Psychiatry and Behavioral Sciences, Institutet (KIND), Stockholm, Sweden, (2)Center of Neurodevelopmental Duke University, Durham, NC, (4)Department of Electrical and Disorders (KIND), Centre for Psychiatry Research; Department of Computer Engineering, Duke University, Durham, NC, (5)Department of Women’s and Children’s Health, Karolinska Institutet, & Stockholm Psychiatry and Behavioral Sciences, Duke Center for Autism and Brain Health Care Services, Region Stockholm, Stockholm, Sweden, (3) Development, Durham, NC, (6)Department of Civil and Environmental Karolinska Institutet, Stockholm, Sweden Engineering, Duke University, Durham, NC 406.002 Assessing Gluatamate Concentration As a Predictor for Social Behavioral Changes in ASD Due to Memantine N. Nair1, C. Poster Session Riecken1, D. Q. Beversdorf2, B. J. Ferguson3, J. P. Hegarty4 and Poster 405 - Behavioral Neuroscience C. Cirstea1, (1)University of Missouri, Columbia, MO, (2)Department of Radiology, Neurology, and Psychological Sciences, University of Missouri, Columbia, Columbia, MO, (3)Health Psychology, Radiology, 405.001 Intrinsic Structural Connectivity of the Default Mode & Thompson Center for Autism & Neurodevelopmental Disorders, Network and Behavioral Correlates of Executive Function and Social University of Missouri, Columbia, MO, (4)Psychiatry & Behavioral Skills in Youth with ASD J. E. Blume1, C. N. Kahathuduwa1 and A. Sciences, Stanford University, Stanford, CA Mastergeorge2, (1)Department of Human Development and Family Studies, Texas Tech University, Lubbock, TX, (2)Texas Tech University, 406.003 Assessment of Motor Skills VIA a Tablet-Based GAME in Lubbock, TX Young Children with Autism Spectrum Disorder S. Perochon1,2, J. M. Di Martino1, R. E. Aiello3, K. L. Carpenter3, Z. Chang1, S. N. Compton4, 405.003 Restricted and Repetitive Behaviors and Social N. O. Davis5, S. Espinosa1, J. Flowers3, A. Harris6, J. Howard3, S. H. Communication: Their Relationship and Underlying Functional Kollins5, P. R. Krishnappa Babu1, E. M. Perrin7, M. Spanos3, G. Dawson3 Connectivity in Autistic Children G. J. Cardon1 and D. Rojas2, (1) and G. Sapiro1, (1)Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, (2)Colorado State University, Fort Duke University, Durham, NC, (2)Mathematics, Ecole Normale Collins, CO Supérieure Paris-Saclay, Gif-sur-Yvette, France, (3)Department of 405.004 Reward Processing in Young Children with Autism Spectrum Psychiatry and Behavioral Sciences, Duke Center for Autism and Brain Disorder: Evidence of Expectation Violation C. Harrop1, J. Wu2, K. A. Development, Durham, NC, (4)Psychiatry and Behavioral Sciences, Pelphrey3, P. E. Ventola4 and M. Crowley2, (1)Department of Allied Child/Family Mental Health and Developmental Neuroscience, Duke Health Sciences, University of North Carolina at Chapel Hill, Chapel University Medical Center, Durham, NC, (5)Department of Psychiatry Hill, NC, (2)Yale Child Study Center, New Haven, CT, (3)University of and Behavioral Sciences, Duke ADHD Program, Duke University Medical Virginia, Charlottesville, VA, (4)Yale Child Study Center, Yale University Center, Durham, NC, (6)Boston University, Durham, NC, (7)Department School of Medicine, New Haven, CT of Pediatrics, Duke University School of Medicine, Durham, NC

405.005 Visual Processing of the Signatures of Human Movement 406.004 Biophysical Responses to Pain As Biomarkers for Pain- 1 2 in Autism S. Ben-Ami1,2, Y. Meirovitch1,2, D. Israeli3,4 and T. Flash2, (1) Induced Stress in Autistic Individuals M. Elsayed and E. Torres , Massachusetts Institute of Technology, Cambridge, MA, (2)Faculty of (1)Rutgers University, New Brunswick, NJ, (2)Rutgers University, Computer Science and Applied Mathematics, Weizmann Institute of Piscataway, NJ Science, Rehovot, Israel, (3)Psychiatric array, Kaplan Medical Center, 406.005 Comparison of Blood 25 Hydroxy Vitamin D, Copper, Zinc Rehovot, Israel, (4)Faculty of Medicine, Hebrew University of Jerusalem, and Copper Zinc Ratio between Children with Autism Spectrum Disorder Jerusalem, Israel and Typically Developing Children: Analytical Cross-Sectional Study R. Dubey1, G. S. Toteja2, N. Gupta3, R. M. Pandey4, S. Sapra5, V. Jain5 and S. Gulati6, (1)Neurosciences, Medanta Superspeciality Hospital, Indore, India, (2)Ministry of Health and Family Welfare (GOI), Indian Council of Medical Research, New Delhi, India, (3)Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, India, (4)Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India, (5)Pediatrics, All India Institute of Medical Sciences, New Delhi, India, (6)Centre of Excellence and Advanced Research for Childhood Neurodevelopmental Disorders, Child Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India

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406.006 Comparison of Levels of Oxidative Biomarkers between 406.013 Examining Heterogeneity in Children on the Autism and Children with Autism Spectrum Disorder Aged 2-18 Years and Typically Broader Autism Spectrum through Latent Factors Underlying Social and Developing Children: A Case-Control Study C. Reddy1 and S. Gulati2, Cognitive Variability S. Yuan1, S. Koirala2, D. Parmaksiz3, E. Kushner4, (1)Pediatrics, AIIMS, New Delhi, India, (2)Centre of Excellence and A. Klin5, W. Jones5 and L. A. Edwards5, (1)Emory University School Advanced Research for Childhood Neurodevelopmental Disorders, of Medicine, Marcus Autism Center, Atlanta, GA, (2)Department of Child Neurology Division, Department of Pediatrics, All India Institute of Pediatrics, Emory University School of Medicine, Marcus Autism Center, Medical Sciences, New Delhi, India Atlanta, GA, (3)Marcus Autism Center, Atlanta, GA, (4)Emory University, Marcus Autism Center, Atlanta, GA, (5)Marcus Autism Center, Children’s 406.008 Development of a Plasma Metabotype-Based Biomarker Healthcare of Atlanta and Emory University School of Medicine, Atlanta, 1 Test Battery to Screen for Children at Risk of ASD A. M. Smith , M. GA Ludwig1, L. Feuling1, D. Ney2, E. Donley1, M. Natowicz3, D. G. Amaral4 and R. Burrier1, (1)Stemina Biomarker Discovery, Madison, WI, (2) 406.014 Examining Resting State Alpha Power and Social Motivation Nutritional Sciences, University of Wisconsin, Madison, WI, (3)Pathology Among Carriers of CHD8 Mutations and CHD8-Target Genes T. M. & Laboratory Medicine Institute, Cleveland Clinic, LL-3, Cleveland, OH, Rutter1, H. Rea2, E. E. Eichler3, R. A. Bernier4, S. J. Webb4, R. K. Earl4 (4)Department of Psychiatry and Behavioral Sciences, The Medical and C. M. Hudac5, (1)Seattle Pacific University, Seattle, WA, (2)Center Investigation of Neurodevelopmental Disorders (MIND) Institute, UC for Human Development and Disability, University of Washington, Davis School of Medicine, University of California Davis, Sacramento, Seattle, WA, (3)Department of Genome Sciences, University of CA Washington, Seattle, WA, (4)Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, (5)Psychiatry and Behavioral 406.009 Development of the Pupillary Light Reflex from 9 to 24 Sciences, University of Washington, Seattle, AL Months in Infants with Elevated Familial and Genetic Liability to Autism. L. Fish1, P. Nyström2, T. Gliga3, A. Gui3, J. Begum-Ali4, L. Mason5, 406.015 Extending the Clinical Utility of Eye-Tracking Assays of M. Johnson6, T. Charman7, R. Harrison3, E. Meaburn8, T. Falck-Ytter9 Social Visual Engagement to Minority Populations: A Pilot Study of and E. J. Jones5, (1)King’s College London, London, United Kingdom, Toddlers with ASD from African American and Non-English-Speaking (2)Uppsala University, Uppsala, Sweden, (3)Centre for Brain and Families A. I. Mendez1, M. Reid2, C. Klaiman3, A. Klin3 and W. Jones3, Cognitive Development, Birkbeck University of London, London, United (1)Marcus Autism Center, Children’s Healthcare of Atlanta and Emory Kingdom, (4)Centre for Brain and Cognitive Development, Birkbeck University Department of Psychology, Atlanta, GA, (2)Catholic University College, London, United Kingdom, (5)Centre for Brain and Cognitive of America, Washington, DC, (3)Marcus Autism Center, Children’s Development, Birkbeck, University of London, London, United Kingdom, Healthcare of Atlanta and Emory University School of Medicine, Atlanta, (6)Department of Psychology, University of Cambridge, Cambridge, GA United Kingdom, (7)Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United 406.016 Eye Tracking Entropy from Social and Nonsocial Stimuli Kingdom, (8)Psychological Sciences, Birkbeck College, London, United As an Attention Dispersion Measure for Autism Spectrum Disorder Kingdom, (9)Karolinska Institutet & Uppsala University, Uppsala, Sweden C. Carlos, A. Naples, J. M. Wolf, T. McAllister, E. Cummings, T. C. Parker and J. McPartland, Child Study Center, Yale University School of 406.010 Diagnostic, Developmental, and Health Effects on Medicine, New Haven, CT Parasympathetic Regulation and Reactivity in Youth with Autism Spectrum Disorder R. A. Muscatello1, A. Kim2, S. Vandekar2 and B. A. 406.017 Infants with a First-Degree Relative with Autism or ADHD 1 Corbett1, (1)Psychiatry and Behavioral Sciences, Vanderbilt University Show Altered Brain Activity during Live Social Experiences E. V. Throm , 1 1 1 2 3 Medical Center, Nashville, TN, (2)Department of Biostatistics, Vanderbilt J. Begum Ali , C. Taylor , L. Mason , T. Charman , M. Johnson , E. 1 1 University Medical Center, Nashville, TN J. Jones and .. the BASIS-STAARS Team , (1)Centre for Brain and Cognitive Development, Birkbeck, University of London, London, 406.011 EEG Biomarkers of Social Interaction in Fmr1 Null Mice United Kingdom, (2)Department of Psychology, Institute of Psychiatry, S. P. Uysal1, S. Gurnani2, L. Lalani3, A. Rotenberg4, M. Sahin5 and M. Psychology and Neuroscience, King’s College London, London, United E. Modi6, (1)Cleveland Clinic, Cleveland, OH, (2)Neurology, Boston Kingdom, (3)Department of Psychology, University of Cambridge, University Medical Center, Boston, MA, (3)Boston Children’s Hospital, Cambridge, United Kingdom Boston, MA, (4)Neurology, Harvard Medical School, Boston, MA, (5) Boston Children’s Hospital/Harvard Medical School, Boston, MA, (6) 406.018 Initial Evidence of Clinical Utility of Optimized FMRP 1,2 1 1,2 Neurology, Boston Children’s Hospital, Boston, MA Analysis in Fragile X Syndrome L. M. Schmitt , A. Boggs , C. Gross , E. Pedapati1,2, K. Dominick1,2 and C. A. Erickson1,2, (1)Cincinnati 406.012 EEG Theta Power and Behavioral Characteristics of Children’s Hospital Medical Center, Cincinnati, OH, (2)University of Children with Autism with and without Co-Occurring ADHD S. Major1, J. Cincinnati College of Medicine, Cincinnati, OH N. Grapel2, T. Calnan3, K. L. Carpenter4, M. Sabatos-DeVito5, L. Franz1, S. Compton4, M. Spanos4, C. Sullivan6, N. O. Davis7, R. E. Aiello4, J. 406.019 Longer Auditory Brainstem Response Latency before 6 Schechter7, S. H. Kollins7 and G. Dawson4, (1)Duke Center for Autism Months Does Not Predict Subsequent Language Impairment in Infants and Brain Development, Department of Psychiatry and Behavioral at-Risk for Neurodevelopmental Disorders: A Preliminary Investigation 1 2,3 2,3 2,3 2 2,3 1 1 Sciences, Duke University, Durham, NC, (2)Psychology, Duke Center for A. Yi , L. Yu , B. Lai , J. Zhang , N. Li , L. Ban , J. Xin and S. Li , Autism and Brain Development, Durham, NC, (3)Duke Center for Autism (1)Department of Children Rehabilitation, Foshan Chancheng Central and Brain Development, Durham, NC, (4)Department of Psychiatry and Hospital, Foshan, China, (2)School of Psychology, South China Normal Behavioral Sciences, Duke Center for Autism and Brain Development, University, Guangzhou, China, (3)Autism Research Center, South China Durham, NC, (5)Psychiatry and Behavioral Sciences, Duke Center Normal University, Guangzhou, China for Autism and Brain Development, Durham, NC, (6)Duke University, Durham, NC, (7)Department of Psychiatry and Behavioral Sciences, Duke ADHD Program, Duke University Medical Center, Durham, NC

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406.020 Relevance of the Plasma Oxytocin Concentration and Poster Session Neurodevelopmental Disorders in 5-Year-Old Children Considering Gender Y. Sakamoto1, M. Saito1, A. Osato2, A. Terui1, K. Yoshida1, T. Poster 407 - Cellular models/stem cells Mikami2 and K. Nakamura2, (1)Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan, (2)Research 407.001 Elucidating Molecular Mechanisms of Genetic Interaction 1 Center for Child Mental Development, Graduate School of Medicine, and Oligogenicity in Autism Spectrum Disorder A. L. Sertie , A. L. 1 2 1 2 3 Hirosaki University, Hirosaki, Japan Teles e Silva , T. Glaser , K. Griesi-Oliveira , J. Corrêa , G. Campos , H. Ulrich2, A. Balan4 and M. R. Passos-Bueno5, (1)Centro de Pesquisa 406.021 Serum Biomarkers Indicate Higher Estradiol Levels and Experimental, Hospital Israelita Albert Einstein, Sao Paulo, Brazil, (2) Maternal Insulin Resistance during Pregnancies of Offspring Who Department of Biochemistry, University of Sao Paulo, Sao Paulo, Brazil, Develop Autism W. Worsham1, A. V. Bakian2, S. Dalton3, M. S. Esplin4, (3)Centro de Estudos do Genoma Humano e Células Tronco, University P. Burghardt5, A. Fraser6 and D. A. Bilder2, (1)University of Utah, Salt of Sao Paulo, Sao Paulo, Brazil, (4)Department of Microbiology, Lake City, UT, (2)Psychiatry, University of Utah, Salt Lake City, UT, University of Sao Paulo, Sao Paulo, Brazil, (5)Centro de Pesquisas (3)Obstetrics and Gynecology, University of Utah, Salt Lake City, UT, Sobre o Genoma Humano e Células-Tronco, Instituto de Biociências, (4)Obstetrics and Gynecology, Intermountain Healthcare, Salt Lake Universidade de São Paulo, Sao Paulo, Brazil City, UT, (5)Wayne State University, Detroit, MI, (6)Huntsman Cancer Institute, University of Utah, Salt Lake City, UT 407.002 iPSC-Derived Innervated Gastrointestinal Organoids to Model the Enteric Nervous System in Autism Spectrum Disorder S. 406.022 The Neural Response to One’s Own Name in Infants with J. Walker1, D. Leavitt2 and D. Mack3, (1)Wake Forest Institute for Elevated Likelihood of Developing Autism Spectrum Disorder: An EEG- Regenerative Medicine, Winston Salem, NC, (2)Wake Forest University, Study T. Van Lierde1, J. R. Wiersema2, P. Warreyn3 and H. Roeyers3, Winston Salem, NC, (3)University of Washington, Seattle, WA (1)Ghent University, Gent, Belgium, (2)Department of Experimental Clinical and Health Psychology, Ghent University, Ghent, Belgium, (3) Department of Experimental-Clinical and Health Psychology, Ghent Poster Session University, Ghent, Belgium Poster 408 - Clinical Genetics 406.023 Towards a Personalized Social Intervention for Autistic Adolescents: Utilization of MRI Biomarkers As Predictors of PEERS® 408.002 Autism Spectrum Disorder Is Burdened By Severely 1 2 3 Treatment Responders. A. Arias , W. L. Tseng , B. Dolan , A. D. Pathogenic Variations within Core Domains of CHD8 and Its CHD7- 4 5 6 7 8 Haendel , A. J. McVey , H. K. Schiltz , M. Carlson , W. Krueger , B. Binding Motif A. SNM, DoS in Genetics and Genomics, University of 9 10 6 Yund , F. Mata-Greve and A. V. Van Hecke , (1)University of California, Mysore, Mysuru, India Santa Barbara, Santa Barbara, CA, (2)Child Study Center, Yale School of Medicine, New Haven, CT, (3)Medical College of Wisconsin, 408.003 Quantitative 3D Analysis of Craniofacial Dysmorphia in Milwaukee, WI, (4)Speech-Language Pathology, Concordia University DYRK1A Mutations C. M. Miles1, E. C. Kurtz-Nelson1, C. M. Hudac2, E. Wisconsin, Mequon, WI, (5)University of British Columbia, Vancouver, E. Eichler3,4, R. A. Bernier1 and R. K. Earl1, (1)Psychiatry and Behavioral BC, Canada, (6)Psychology, Marquette University, Milwaukee, WI, (7) Sciences, University of Washington, Seattle, WA, (2)Center for Youth Education, Marquette University, Milwaukee, WI, (8)Speech Pathology Development and Intervention, Department of Psychology, University and Audiology, Marquette University, Milwaukee, WI, (9)Psychology, of Alabama, Tuscaloosa, AL, (3)Department of Genome Sciences, University of Wisconsin Milwaukee, Milwaukee, WI, (10)Marquette University of Washington, Seattle, WA, (4)Howard Hughes Medical University, Shorewood, WI Institute, Seattle, WA

406.024 Validating an EEG-Based Biomarker of Socio- 408.004 Return of Individual Genetics Results in the Largest Communicative Impairments in ASD M. Moerkerke1, N. Daniels2, S. Recontactable Cohort of People with Autism J. R. Wright1, S. D. Van der Donck3, A. Bamps4, J. Steyaert1, K. Alaerts1 and B. Boets5, (1) Barns2, J. B. Hall1, S. Ganesan1, B. Han2, C. Diggins1, T. Greene1, Leuven Autism Research Consortium (LAuRes), Leuven, Belgium, (2) S. Consortium3, N. Volfovsky2, P. Feliciano1 and W. K. Chung4, (1) Rehabilitation Sciences, KU Leuven, Leuven, Belgium, (3)Center for SFARI, Simons Foundation, New York, NY, (2)Simons Foundation, New Developmental Psychiatry, KU Leuven, Leuven, Belgium, (4)UZ Leuven, York, NY, (3)SPARKForAutism.org, New York, NY, (4)Department of Leuven, Belgium, (5)Leuven Autism Research Consortium (LAuRes), KU Pediatrics, Columbia University, New York, NY Leuven, Leuven, Belgium

406.026 Visual Evoked Pupillary Response to Distinguish Children with ASD and Children with TD: The Effect of Stimulus Frequency on Poster Session Classification Results Q. Liu, X. He, B. Zhou, H. Wu, C. Zhang, Y. Qin, Poster 409 - Clinical trial design L. Shen and X. Gao, School of Medicine, Tsinghua University, Beijing, China 409.001 Autistic People’s Views on the Acceptability of Participating 1 1 1 1 in Randomised Controlled Trials L. Beasant , N. Mills , A. X. Realpe , S. 406.027 Voice Acoustics As a Biomarker for Autism M. Latinus , C. 2 3 4 1 1,2 1,3 1 1 Douglas , L. Kenny and D. Rai , (1)Bristol Medical School, University of David , S. Silleresi , J. Malvy , S. Ferre and F. Briend , (1)UMR 1253, Bristol, Bristol, United Kingdom, (2)Bristol, United Kingdom, (3)Centre for iBrain, Université de Tours, Inserm, Tours, France, (2)Department of Research in Autism and Education (CRAE), London, United Kingdom of Psychology, University of Milano-Bicocca, Milan, Italy, (3)CHRU Tours, Great Britain and Northern Ireland, (4)Population Health Sciences, Bristol Tours, France Medical School, Centre for Academic Mental Health, Bristol, United Kingdom

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409.002 Concomitant Medication Use in Children with ASD: Data 410.002 Feasibility and Acceptability of the Parent Mediated Group from the Autism Biomarkers Consortium for Clinical Trials (ABC-CT) Intervention Coping with Uncertainty in Everyday Situations (CUES) J. L. Shurtz1, C. DiStefano2, S. Jeste3, J. McPartland4, C. A. Nelson5, Rodgers1, M. Freeston2, D. Garland3, V. Grahame3, J. Goodwin4, A. G. Dawson6, N. M. Kleinhans7, S. Faja8, S. J. Webb9, F. Shic10, A. Kernohan4, M. Labus5, M. R. Osborne6, J. R. Parr1 and C. Wright7, (1) Naples4, K. Chawarska4, C. Sugar3, J. Dziura11 and M. Santhosh10, (1) Population Health Sciences Institute, Newcastle University, Newcastle Semel Institute for Neuroscience and Human Behavior, UCLA, Los upon Tyne, United Kingdom, (2)Newcastle University, Newcastle Upon Angeles, CA, (2)University of California Los Angeles, Los Angeles, Tyne, United Kingdom, (3)Cumbria, Northumberland, Tyne and Wear CA, (3)University of California, Los Angeles, Los Angeles, CA, (4)Child NHS Foundation Trust, Newcastle upon Tyne, United Kingdom, (4) Study Center, Yale University School of Medicine, New Haven, CT, Population Health Sciences Institute, Newcastle University, Newcastle (5)Developmental Medicine, Boston Children’s Hospital, Boston, MA, Upon Tyne, United Kingdom, (5)Research and Enterprise Services, (6)Department of Psychiatry and Behavioral Sciences, Duke Center Faculty of Medical Sciences, Newcastle University, Newcastle Upon for Autism and Brain Development, Durham, NC, (7)University of Tyne, United Kingdom, (6)South Tyneside’s Kids And Young Adults Washington, Seattle, WA, (8)Boston Children’s Hospital, Boston, MA, (9) Klub - Special needs support group (KAYAKS), South Shields, United Psychiatry and Behavioral Sciences, University of Washington, Seattle, Kingdom, (7)Child and Adolescent Mental Health Service, Northumbria WA, (10)Center for Child Health, Behavior and Development, Seattle Healthcare NHS Foundation Trust, North Shields, United Kingdom Children’s Research Institute, Seattle, WA, (11)Yale University, New Haven, CT 410.003 Person-Ability Scores As an Outcome Measure Alternative to Norm-Referenced Scores in ASD Clinical Trials: A Simulation Study 409.003 Feasibility of a Randomized Clinical Trial for Children C. Farmer1, A. J. Kaat2 and A. Thurm1, (1)National Institute of Mental with Autism Spectrum Disorder and Co-Occurring Attention-Deficit/ Health, Bethesda, MD, (2)Department of Medical Social Sciences, Hyperactivity Disorder: Addressing Enrollment and Retention Challenges Northwestern University, Chicago, IL M. Spanos1, T. Chandrasekhar2, L. Reinhart-Mercer3, G. Dawson1, S. H. Kollins4, S. Compton1, N. O. Davis4, M. Sabatos-DeVito5, L. Franz6, J. 410.004 Predictors of Treatment Response Using the Brief Howard3, R. E. Aiello1, L. Lee3, A. Teoh3 and L. Sikich1, (1)Department Observation of Social Communication Change (BOSCC). R. 1 2 2 3 3 of Psychiatry and Behavioral Sciences, Duke Center for Autism and Grzadzinski , K. Donovan , K. Truong , A. Holbrook , C. Lord and S. 4 Brain Development, Durham, NC, (2)Duke University Medical Center, H. Kim , (1)Carolina Institute for Developmental Disabilities, University Durham, NC, (3)Duke Center for Autism and Brain Development, of North Carolina, Chapel Hill, NC, (2)Gillings School of Global Public Durham, NC, (4)Department of Psychiatry and Behavioral Sciences, Health, University of North Carolina, Chapel Hill, NC, (3)University of Duke ADHD Program, Duke University Medical Center, Durham, NC, California, Los Angeles, Los Angeles, CA, (4)Psychiatry, Center for (5)Psychiatry and Behavioral Sciences, Duke Center for Autism and Autism and the Developing Brain, White Plains, NY Brain Development, Durham, NC, (6)Duke Center for Autism and Brain 410.005 Psychometric Properties of Restricted and Repetitive Development, Department of Psychiatry and Behavioral Sciences, Duke Behavior (RRB) Scales and Associations between Rrbs and University, Durham, NC Co-Occurring Symptoms and Behaviors J. Tillmann1, E. Eule1, P. 1 2 1 3 1 409.004 Multicentre, Randomized Controlled Trial of the Frankfurt Schoenenberger , D. Volz , T. Ciobanu , C. H. Chatham , C. Goeldner , 1 1 1 4 Early Intervention Program for Toddlers and Preschool Children with M. del Valle Rubido , D. Umbricht , L. Murtagh , F. Bolognani and J. 5 Autism Spectrum Disorder – a-Ffip Z. Kim, J. Kitzerow, K. Teufel F. Hipp , (1)Neuroscience and Rare Diseases (NRD), Roche Pharma and C. M. Freitag, Autism Research and Intervention Center of Research and Early Development, Roche Innovation Center, Basel, Excellence Frankfurt, Department of Child and Adolescent Psychiatry, Switzerland, (2)Department of Biometrics, F. Hoffmann-La Roche AG, Psychosomatics and Psychotherapy, University Hospital Frankfurt, Basel, Switzerland, (3)Neuroscience and Rare Diseases (NRD), Roche Goethe University, Frankfurt, Germany Pharma Research and Early Development, Roche Innovation Center, New York, CA, (4)Axial Therapeutics, Inc., Basel, Switzerland, (5) Neuroscience and Rare Diseases (NRD), Pharma Research & Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Poster Session AG, Basel, Switzerland Poster 410 - Clinical trial endpoints 410.006 Social Networks As a Mediator for Transition Success: Building Better Bridges RCT E. McGhee Hassrick1, S. Kabourek2, W. I. 410.001 Analysis of the Childhood Autism Rating Scale 2 (CARS-2) Shih3, H. J. Nuske4, J. Ventimiglia5, J. Chiappe6, E. Morgan7, L. Levato8, in Two Item Sets Aligned on DSM-5 Core Symptoms of ASD. Application A. D. Nunnally9, F. Jones10, S. Kataoka3, A. C. Stahmer9, D. S. Mandell4 to a Bumetanide Oral Liquid Formulation Clinical Trial V. Crutel1, E. and C. Kasari3, (1)A..J. Drexel Autism Institute, Drexel University, Lemonnier2, E. Lambert1, S. Kyaga1, D. M. Ravel3 and S. Serret4, (1) Philadelphia, PA, (2)NORC at the University of Chicago, Chicago, IL, (3) Servier, Suresnes, France, (2)centre expert autisme du limousin, CHU University of California, Los Angeles, Los Angeles, CA, (4)Penn Center de limoges, Limoges, France, (3)R&D, Neurochlore, Marseille, France, for Mental Health, University of Pennsylvania, Philadelphia, PA, (5)AJ (4)Child and Adolescent Psychiatry Department, CHU Children Hospital Drexel Autism Institute, Drexel University, Philadelphia, PA, (6)California of Nice, Nice, France State University, Dominguez Hills, Carson, CA, (7)MIND Institute, UC Davis, Sacramento, CA, (8)University of Rochester Medical Center, Rochester, NY, (9)UC Davis MIND Institute, University of California, Davis, Sacramento, CA, (10)Healthy African American Families, Los Angeles, CA

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410.007 The SIGN Trials: A Phase III Study of Bumetanide 0.5 Mg 411.007 Executive Function and Emotion Regulation As Predictors Oral Liquid Formulation for Treatment of Children and Adolescents of Academic and Social Outcomes in Kindergarteners with ASD A. P. with Autism Spectrum Disorder - Study Design and Patient Baseline Viggiano1, D. Swain2, H. R. Thomas3 and S. H. Kim4, (1)Weill Cornell Characteristics M. Ferrin1, C. Georgoula1, B. Pietraszczyk-Kędziora2, Medicine Center for Autism and the Developing Brain (CADB), White A. Hervás3, S. Marret4, G. Oliveira5, A. Rosier6, V. Crutel7, E. Besse7, Plains, NY, (2)Virginia Polytechnic Institute and State University, C. Albarran7, S. Kyaga7, D. M. Ravel8 and J. Fuentes9, (1)Re:Cognition Blacksburg, VA, (3)Psychological Sciences, University of Connecticut, Health, London, United Kingdom, (2)Gdanskie Centrum Zdrowia Sp z Storrs, CT, (4)Psychiatry, Center for Autism and the Developing Brain, o.o., Gdansk, Poland, (3)Instituto Global de Atención al Neurodesarrollo White Plains, NY (IGAIN), Barcelona, Spain, (4)Rouen University Hospital, Rouen, France, (5)Centro Hospitalar e Universitário de Coimbra - CHUC, Coimbra, 411.008 Inhibitory Difficulties in Autism Spectrum Condition: A Portugal, (6)Department of Neonatal Pediatrics, CHU de Rouen and Nuanced View on an Ongoing Debate C. Torenvliet, A. G. Lever, CHU Le Rouvray, Sotteville les Rouen, France, (7)Servier, Suresnes, A. P. Groenman, K. R. Ridderinkhof and H. M. Geurts, University of France, (8)R&D, Neurochlore, Marseille, France, (9)Policlinica Gipuzkoa, Amsterdam, Amsterdam, Netherlands San Sebastian, Spain 411.009 Investigating Executive Functioning in Preschool Children with Autism Spectrum Disorder O. Zacharov1, R. Huster2 and A. Kaale1,3, (1)Department of Special Needs Education, University of Oslo, Oslo, Poster Session Norway, (2)Department of Psychology, University of Oslo, Oslo, Norway, Poster 411 - Cognition: Attention, Learning, Memory (3)Norwegian Centre of Expertise for Neurodevelopmental Disorders and Hypersomnias, Oslo University Hospital, Oslo, Norway

411.001 A Model for Disruption and Heterogeneity of Attentional 411.010 Long-Term Melodic and Pitch Memory in Children with Processes in Autism: Role of Prefrontal Cortical and Thalamic Networks Autism Spectrum Disorder. S. T. S. Wong, S. Stanutz, S. Sivathasan, 1 2,3 A. Yazdanbakhsh and B. (. Zikopoulos , (1)Psychological & Brain E. Stubbert, J. Burack and E. M. Quintin, Educational & Counselling Sciences, Boston University, Boston, MA, (2)Health Sciences, Boston Psychology, McGill University, Montreal, QC, Canada University, Boston, MA, (3)Anatomy and Neurobiology, Boston University School of Medicine, Boston, MA 411.011 Measuring the Impact of Bilingualism on Inhibitory Control Abilities in Autistic Children. R. V. Davis1, L. Montgomery2, V. 411.002 Altered Internal Concentration in Autism Spectrum Disorder Chondrogianni2 and S. Fletcher-Watson3, (1)Department of Psychiatry, 1 2 3 4 5 5 A. Ahmad , S. Gulati , R. Sharma , S. Sharma , S. Kaur , P. Tayade University of Edinburgh, Edinburgh, United Kingdom, (2)University of 6 and B. Chakrabarty , (1)Department of Physiology, All India Institute of Edinburgh, Edinburgh, United Kingdom, (3)Salvesen Mindroom Research Medical Sciences, New Delhi, New Delhi, India, (2)Centre of Excellence Centre, University of Edinburgh, Edinburgh, United Kingdom and Advanced Research for Childhood Neurodevelopmental Disorders, Child Neurology Division, Department of Pediatrics, All India Institute of 411.012 Memory for Actions and Reality Monitoring in Adults with Medical Sciences, New Delhi, India, (3)Department of Physiology, All Autism Spectrum Disorder K. Yamamoto1 and K. Masumoto2, (1) India Institute of Medical Sciences, New Delhi, India, (4)Child Neurology Graduate School of Human and Environmental Studies, Kyoto University, Division, Department of Pediatrics, All India Institute of Medical Sciences, Kyoto, Japan, (2)Graduate School of Human Development and New Delhi, New Delhi, India, (5)Physiology, All India Institute of medical Environment, Kobe University, Kobe, Japan sciences, New Delhi, India, NEW DELHI, India, (6)Pediatrics, All India Institute of medical sciences, New Delhi, India, NEW DELHI, India 411.013 Mind the Gap: Does Executive Functioning Predict the Discrepancy between IQ and Adaptive Functioning in Children with 411.003 Assessing Event Knowledge in Relation to Autistic Traits ASD without ID? I. Hastedt, Y. Braverman, S. R. Edmunds and S. Faja, and Social Ability K. E. Hannah1,2, K. S. Brown3, M. Hall-Bruce2, R. A. Boston Children’s Hospital, Boston, MA Stevenson1,2 and K. McRae1,2, (1)Psychology, University of Western Ontario, London, ON, Canada, (2)Brain and Mind Institute, University 411.016 Rhythm Perception: A Preserved Musical Ability of Children of Western Ontario, London, ON, Canada, (3)Pharmaceutical Sciences with Autism Spectrum Disorder H. Dahary1, M. Kaedbey2, C. Rimmer1, and Chemical, Biological, and Environmental Engineering, Oregon State S. Sivathasan3 and E. M. Quintin3, (1)McGill University, Montreal, QC, University, Corvallis, OR Canada, (2)McGill Unversity, Montreal, QC, Canada, (3)Educational & Counselling Psychology, McGill University, Montreal, QC, Canada 411.004 Assessing the Impact of Sensory Processing on Academic Achievement and Attention J. C. Bullen1 and P. Mundy2, (1)University 411.017 Sensorimotor Flexibility in Autism Spectrum Disorders: The of California, Davis, Davis, CA, (2)University of California at Davis, Contextual Interference Effect Facilitates the Retention and Transfer of Sacramento, CA Newly Acquired Sensorimotor Skills N. C. Foster1, C. Ansuini1, N. Pretti1, F. Battaglia1,2, L. Nobili2,3, S. J. Hayes4 and C. Becchio1, (1)Cognition, 411.005 Atypical Exogenous and Endogenous Orienting in People Motion and Neuroscience, Istituto Italiano di Tecnologia, Genova, Italy, with ASD S. Li1, E. L. Burrows2 and K. A. Johnson1, (1)School of (2)IRCCS Istituto Giannina Gaslini, Ospedale Pediatrico, Genova, Psychological Sciences, University of Melbourne, Parkville, VIC, Italy, (3)Department of Neurosciences, Rehabilitation, Ophthalmology, Australia, (2)Florey Institute of Neuroscience and Mental Health, Genetics and Maternal and Children’s Science, University of Genoa, University of Melbourne, Parkville, VIC, Australia Genova, Italy, (4)Department of Psychology and Human Development, Institute of Education, University College London, London, United Kingdom

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411.018 The Relationship between Performance on a Musical 412.006 Creating Psychophysical Touch-Screen Paradigms to Working Memory Task and Parent Reports of Working Memory: A Test Sensory Processing in Young Children with and without Autism J. Comparison between Typically Developing Children and Children with Koziel1, A. Pilkington1, A. N. de Rothschild1, A. Goodwin1, J. L. He2, N. A. ASD. G. Philibert-Lignieres1, C. Rimmer1, T. Q. Boucher2, B. Tillmann3, Puts3 and E. Loth1, (1)Department of Forensic and Neurodevelopmental G. Iarocci2, A. Bertone1 and E. M. Quintin4, (1)McGill University, Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s Montreal, QC, Canada, (2)Psychology, Simon Fraser University, College London, London, United Kingdom, (2)Russell H. Morgan Burnaby, BC, Canada, (3)Université Claude-Bernard Lyon1, Lyon, Department of Radiology and Radiological Science, The Johns Hopkins France, (4)Educational & Counselling Psychology, McGill University, University School of Medicine, The Johns Hopkins University School of Montreal, QC, Canada Medicine, Baltimore, MD, (3)Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of 411.019 Visual Perception in Autism: Autistic Adults Are More Medicine, Baltimore, MD Accurate at Identifying Subtle Differences between Stimuli. N. Jassim1, S. Baron-Cohen1 and O. E. Parsons2, (1)Autism Research Centre, 412.007 Enhanced Pseudoword Reading in Autism Is Supported Department of Psychiatry, University of Cambridge, Cambridge, United By Differences in Ventral Visual Stream Activation S. R. Cahalan1, Kingdom, (2)University of Cambridge, Cambridge, United Kingdom W. Graves1, H. Levinson1, L. Coulanges2, M. Pincus1, V. H. Bal3, C. Sancimino4, D. Cruz5, D. Karim1 and M. Rosenberg-Lee1, (1)Department of Psychology, Rutgers University, Newark, NJ, (2)Psychology, Poster Session University of Pittsburgh, Pittsburgh, PA, (3)Graduate School of Applied and Professional Psychology, Rutgers University-New Brunswick, Poster 412 - Cognitive Neuroscience Piscataway, NJ, (4)UCSD School of Medicine, Autism Center of Excellence, La Jolla, CA, (5)Hackensack Meridian Health – Mountainside 412.001 Associative Learning Under Uncertainty in ASD: Intact Medical Center, Hackensack, NJ Learning of Cue-Outcome Contingencies but Slower Updating of Predictions after a Change in Contingency L. A. Sapey-Triomphe1,2 and 412.008 Hidden Literacy in Minimally Verbal ASD Revealed By Eye J. Wagemans1, (1)Laboratory of Experimental Psychology, Department Gaze: Reduced Pupil Dilation Hint at a Deficit in Recruiting Arousal of Brain and Cognition, Leuven Brain Institute, KU Leuven, Leuven, That Impact Voluntary Behavior Y. S. Bonneh1, K. Ellert2 and N. Belgium, (2)Leuven Autism Research (LAuRes), KU Leuven, Leuven, Shefer - Kaufmann3, (1)School of Optometry and Vision Science, Bar- Belgium Ilan University, Ramat Gan, Israel, (2)School of Optometry and Vision Science, Bar-Ilan University, Ramat-Gan, Israel, (3)Clalit institute for 412.002 Atypical Temporal Distraction in Processing Visual Temporal child development, Tel-Aviv, Israel Order in Individuals with Autism Spectrum Disorders. T. Atsumi1,2, M. Ide2 and Y. Terao1, (1)Department of Medical Physiology, Faculty 412.009 Increased Context Adjustment with Higher Sensory of Medicine, Kyorin University, Mitaka, Tokyo, Japan, (2)Department Sensitivities Indexed By Auditory Mismatch Negativity R. Randeniya1, of Rehabilitation for Brain Functions, Research Institute of National J. B. Mattingley1 and M. I. Garrido2, (1)Queensland Brain Institute, The Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama, University of Queensland, Brisbane, QLD, Australia, (2)Melbourne Japan School of Psychological Sciences, University of Melbourne, Melbourne, VIC, Australia 412.003 Autism Spectrum Disorder, Learning What to Ignore: Deficits in Psychological Priors over Attribute Informativeness W. W. Pettine and 412.010 Intersecting Intention Encoding and Readout in Autism J. D. Murray, Yale University, New Haven, CT C. Becchio1, N. Montobbio2, C. Ansuini1, F. Battaglia1,3, J. Podda1,4, A. Cavallo1,5, L. Nobili3,6 and S. Panzeri7, (1)Cognition, Motion and 412.004 Brain Imaging Investigation of the Hippocampal and Neuroscience, Istituto Italiano di Tecnologia, Genova, Italy, (2)Neural Amygdala Structural Changes in Autism throughout Development P. Computation, Italian Institute of Technology, Genova, Italy, (3)IRCCS T. Patenaude1, E. B. Barbeau2 and X. Chai3, (1)Integrated Program in Istituto Giannina Gaslini, Ospedale Pediatrico, Genova, Italy, (4)Scientific Neuroscience, McGill University, Montreal, QC, Canada, (2)Cognitive Research Area, Italian Multiple Sclerosis Foundation, Genova, Italy, Neuroscience Unit, Montreal Neurological Institute, McGill University, (5)Department of Psychology, University of Turin, TORINO, Italy, (6) Montreal, QC, Canada, (3)Neurology and Neurosurgery, McGill Department of Neurosciences, Rehabilitation, Ophthalmology, Genetics University, Montreal Neurological Institute, Montreal, QC, Canada and Maternal and Children’s Science, University of Genoa, Genova, Italy, (7)Neural Computation Laboratory, Istituto Italiano di Tecnologia, 412.005 Cortico-Striatal Functional Connectivity Predict Higher Rates Rovereto and Genova, Italy of Camouflaging and Better Cognitive Control in Females but Not Males with Autism Spectrum Disorder M. Walsh1, B. B. Braden2, C. J. Smith3 412.011 Investigating Timing Processes in Autistic Adults E. Gowen, and L. C. Baxter4, (1)Arizona State University, Tempe, AZ, (2)College L. Jones, E. Poliakoff and D. Poole, Division of Neuroscience and of Health Solutions, Arizona State University, Tempe, AZ, (3)Southwest Experimental Psychology, University of Manchester, Manchester, United Autism Research & Resource Center, Phoenix, AZ, (4)Radiology, Barrow Kingdom Neurological Institute, Phoenix, AZ 412.012 Longitudinal Functional Connectivity of Cognitive Brain Networks in Older Men with Autism M. Walsh1, B. A. Pagni1, N. Guerithault1, A. Nespodzany1, L. C. Baxter2, C. J. Smith3 and B. B. Braden4, (1)Arizona State University, Tempe, AZ, (2)Radiology, Barrow Neurological Institute, Phoenix, AZ, (3)Southwest Autism Research & Resource Center, Phoenix, AZ, (4)College of Health Solutions, Arizona State University, Tempe, AZ

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412.013 Measuring the Prediction of Observed Actions Using an 413.002 A Novel Method of Introducing Emotional Content in Occlusion Paradigm: Comparing Autistic and Non-Autistic Adults E. Synthesized Speech Via Facial Expression and Vocal Prosody L. J. Gowen1, E. Poliakoff1, H. Shepherd2 and W. Stadler3, (1)Division of Brady, iTherapy, LLC, Martinez, CA Neuroscience and Experimental Psychology, University of Manchester, Manchester, United Kingdom, (2)Division of Neuroscience and 413.003 A Systematic Literature Review of Autism Research on 1 2 Experimental Psychology, The University of Manchester, Manchester, Caregiver Talk K. Bottema-Beutel and S. Y. Kim , (1)Lynch School United Kingdom, (3)Department of Sport and Health Sciences, Technical of Education, Boston College, Chestnut Hill, MA, (2)Duksung Women’s University of Munich, Munich, Germany University, Seoul, Korea, Republic of (South)

412.014 Neural Measures of Social Attention As an Indicator of 413.004 Acoustic-Perceptual Analysis of Oral Narratives in 1 2 Communication and Social Development in Infants at-Risk for Autism Individuals with Autism M. V. Andrianopoulos and C. E. Gargan , (1) Spectrum Disorder J. Glauser1, C. L. Wilkinson2, A. B. Choi2, H. Tager- Department of Communication Disorders, University of Massachusetts, Flusberg3 and C. A. Nelson2, (1)Harvard College, Cambridge, MA, (2) Amherst, MA, (2)Communication Sciences and Disorders, Syracuse Developmental Medicine, Boston Children’s Hospital, Boston, MA, (3) University, Syracuse, NY Department of Psychological and Brain Sciences, Boston University, 413.005 Are Children with Autism More Likely to Retain Object Boston, MA Names When Learning from Colour Photographs or Black-and-White 412.015 Reduced Early Habituation to Repeated Sounds in Cartoons? C. K. Carter and C. Hartley, Lancaster University, Lancaster, Autism: An EEG Study J. Goris1,2, S. Braem1,2, M. Brass1,2,3 and United Kingdom J. R. Wiersema2,4, (1)Department of Experimental Psychology, 413.006 Assessing Vocabulary Differences in Infants with an Ghent University, Ghent, Belgium, (2)Research group EXPLORA, Elevated Likelihood of ASD Using the n-CDI Z. Belteki1, C. van den Ghent University, Ghent, Belgium, (3)Berlin School of Mind and Boomen1, E. Ward2, S. Hunnius3, J. K. Buitelaar4 and C. Junge5, (1) Brain, Department of Psychology, Humboldt-Universität zu Berlin, Utrecht University, Utrecht, Netherlands, (2)Donders Institute for Brain, Berlin, Germany, (4)Department of Experimental Clinical and Health Cognition and Behaviour, Nijmegen, Netherlands, (3)Baby and Child Psychology, Ghent University, Ghent, Belgium Research Center, Radboud University, Nijmegen, Netherlands, (4) 412.016 The Cerebellum’s Role in Prediction across Cognitive and Department of Cognitive Neuroscience, Donders Institute for Brain, Motor Domains in Autism L. C. Rice1, A. M. D’Mello1, C. Thomas2, S. Cognition and Behaviour, Radboud University Nijmegen Medical E. Martin3, B. C. Drury2, A. Lillian2, M. Melkumyan2, N. Loy2 and C. J. Centre, Nijmegen, Netherlands, (5)Department of Developmental and Stoodley4, (1)Behavior, Cognition, and Neuroscience Program, American Experimental Psychology, Utrecht University, Utrecht, Netherlands University, Washington, DC, (2)American University, Washington, DC, 413.007 Atypical Neural Representation of Phonological Working (3)Neuroscience Program, American University, Washington, DC, (4) Memory in Children with Autism A. M. O’Brien1,2, Z. Qi2,3, H. Tager- Psychology, American University, Washington, DC Flusberg4 and J. D. E. Gabrieli5, (1)260 Longwood Avenue, Harvard 412.017 The Similarity and Differences in Aberrant Task-Induced University, Boston, MA, (2)McGovern Institute, Massachusetts Institute Functional Connectivity Patterns Observed in ASD and ADHD: A Meta- of Technology, Cambridge, MA, (3)Department of Linguistics & Cognitive Analysis Approach A. Moses1 and L. Chen2, (1)Santa Clara University, Science, University of Delaware, Newark, MD, (4)Department of Santa Clara, CA, (2)500 El Camino Real, Santa Clara University, Santa Psychological and Brain Sciences, Boston University, Boston, MA, (5) Clara, CA Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA 412.018 Variability in Movement and Visual Attention during a Behaviorally Adaptive Eye-Tracking and EEG Paradigm with Children 413.008 Audiovisual Integration of Speech and Gesture in Autism with ASD E. Cummings1, A. Naples1, J. M. Wolf1, C. C. Cukar-Capizzi1, R. Hafner and A. Lambrechts, Psychology, City, University of London, G. T. Han2 and J. McPartland1, (1)Child Study Center, Yale University London, United Kingdom School of Medicine, New Haven, CT, (2)Vanderbilt University, Nashville, 413.009 Characterizing Language Atypicality in ASD and ADHD J. TN, TN K. Dolata1,2, S. Suarez2 and E. Fombonne3, (1)Department of Pediatrics, Oregon Health & Science University, Portland, OR, (2)Communication Sciences and Disorders, Pacific University, Forest Grove, OR, (3) Poster Session Department of Psychiatry, Oregon Health & Science University, Portland, Poster 413 - Communication and Language OR 413.010 Construct Validity of the Autism Classification System of 413.001 A Cross-Cultural Analysis of Narrative and Visual Attention Functioning: Social Communication (ACSF:SC) across Development 1 2 2 3 in Autism Spectrum Disorder J. Xing , K. Nayar , E. Landau , X. Kang , D. Parvinchi1, P. Rosenbaum2, E. Duku3, M. J. Cooley Hidecker4, 4 5 3 6 J. C. Lau , G. E. Martin , P. Wong and M. Losh , (1)Communication L. Zwaigenbaum5, C. Roncadin6, S. Georgiades7, S. J. Gentles2, H. Sciences and Disorder, Northwestern University, Evanston, IL, (2) Fang1 and B. Di Rezze1, (1)School of Rehabilitation Science, McMaster Feinberg School of Medicine, Department of Psychiatry and Behavioral University, Hamilton, ON, Canada, (2)CanChild Centre, McMaster Sciences, Northwestern University, Evanston, IL, (3)The Chinese University, Hamilton, ON, Canada, (3)Offord Centre for Child Studies, University of Hong Kong, Ma Liu Shui, Hong Kong, (4)Department McMaster University, Hamilton, ON, Canada, (4)Department of of Communication Sciences and Disorder, Northwestern University, Communication Sciences & Disorders, University of Kentucky, Lexington, Evanston, IL, (5)Communication Sciences and Disorders, St. John’s KY, (5)University of Alberta, Edmonton, AB, Canada, (6)Autism University, Staten Island, NY, (6)Communication Sciences and Spectrum Disorder Service, McMaster Children’s Hospital - Hamilton Disorders, Northwestern University, Evanston, IL Health Sciences, Hamilton, ON, Canada, (7)McMaster Autism Research Team, McMaster University, Hamilton, ON, Canada

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413.011 Development of Conversation Abilities in Chinese-Speaking 413.021 Facing Your Fears: Collaborating with Autistic Young Adults Preschoolers with Autism: The Contributing Role of Parents W. So1 and to Adapt an Evidence-Based Anxiety Intervention K. L. Baldwin1, B. X. Song2, (1)Educational Psychology, The Chinese University of Hong Freedman2 and J. Monahan3, (1)Spectrum Scholars, University of Kong, Hong Kong, Hong Kong, (2)Chinese University of Hong KOng, Delaware, Newark, DE, (2)Center for Disabilities Studies, University of Hong Kong, Hong Kong Delaware, Newark, DE, (3)University of Delaware, Newark, DE

413.012 Differences in Conversational Prosodic Entrainment between 413.022 Figurative Language Comprehension in Hong Kong Children Youth with and without ASD As a Function of Conversational Duration with Autism Spectrum Disorders: The Role of Theory of Mind and H. Lehnert-LeHouillier1 and S. Sandoval2, (1)Communication Disorders, Conventionality C. C. H. Cheung1, Y. Rong1, Y. Xiong2, M. T. Leung2 New Mexico State University, Las Cruces, NM, (2)Klipsch School of and T. P. Y. Tang2, (1)Research Centre for Language, Cognition, and Engineering, New Mexico State University, Las Cruces, NM Neuroscience, Department of Chinese and Bilingual Studies, The Hong Kong Polytechnic University, Hong Kong, Hong Kong, (2)Department of 413.013 Difficulties with Personal Pronouns for School-Aged Children Chinese and Bilingual Studies, The Hong Kong Polytechnic University, 1 2 with ASD and ADHD in a Virtual Reality Task C. Boo , N. S. McIntyre , Hong Kong, Hong Kong P. Mundy3 and L. R. Naigles1, (1)Psychological Sciences, University of Connecticut, Storrs, CT, (2)University of California at Davis, Davis, CA, 413.023 Frequency, Form, and Function: Question-Asking in (3)University of California at Davis, Sacramento, CA Young Children with Autism Spectrum Disorder C. Mitchell1, R. J. Luyster1 and L. R. Naigles2, (1)Communication Sciences and Disorders, 413.014 Distinctive Features of Pragmatic Expression in Adults Emerson College, Boston, MA, (2)Psychological Sciences, University of 1 1 2 3 3 with ASD C. Yang , D. Liu , A. R. Canfield , C. Hoffkins , J. Aldrich , Connecticut, Storrs, CT S. Farash3, L. Silverman3 and E. Prud’hommeaux1, (1)Boston College, Chestnut Hill, MA, (2)SUNY Upstate Medical University, Syracuse, NY, 413.024 Gesture Variability during Narrative Production in 5-7-Year- (3)University of Rochester Medical Center, Rochester, NY Olds: A Comparison of Children with ASD or TD K. Nguyen1, L. R. Naigles2 and M. Jyotishi3, (1)Department of Psychology, University 413.016 Do Preferred Interests Support Vocabulary Learning in of Connecticut, Storrs, CT, (2)Psychological Sciences, University of 1 2 Preschoolers with ASD? a Pilot Study T. Pelletier and S. Arunachalam , Connecticut, Storrs, CT, (3)Applied Survey Research, San Jose, CA (1)New York University, New York, NY, (2)Communicative Sciences and Disorders, New York University, New York, NY 413.025 Hierarchical Acoustic Structure during Parent-Child Interactions of Toddlers with Typical Development and Autism Spectrum 413.017 Does a Naturalistic Coding Measure of Social Disorder O. Boorom1, V. A. Munoz1, C. Alviar Guzman2, C. Kello2 and Communication Predict Pragmatic Ability As Measured By the CCC-2? M. D. Lense1, (1)Vanderbilt University Medical Center, Nashville, TN, (2) 1 2 3 3 C. G. La Valle , E. Johnston , E. Clark-Whitney , S. H. Kim and H. University of California Merced, Merced, CA Tager-Flusberg1, (1)Department of Psychological and Brain Sciences, Boston University, Boston, MA, (2)Boston University, Boston, MA, (3) 413.026 How Do Bulgarian- and English-Speaking Parents Refer Psychiatry, Center for Autism and the Developing Brain, White Plains, to Their Children with ASD? M. Barokova and H. Tager-Flusberg, NY Department of Psychological and Brain Sciences, Boston University, Boston, MA 413.018 Early Expressive Language in Young Children with Autism Spectrum Disorder: The Importance of the Context P. Pérez1, A. 413.027 Investigating IQ, Sex, Attention, and Anxiety As Nordahl-Hansen2 and A. Kaale1,3, (1)Department of Special Needs Determinants of Social Communication Difficulties: Data from the Pond Education, University of Oslo, Oslo, Norway, (2)Faculty of Education, Network J. Nguyen1, E. Anagnostou2, J. A. Brian1, E. Kelley3, M. Ayub3, Østfold University College, Halden, Norway, (3)Norwegian Centre of J. Crosbie4, R. Schachar5, S. Georgiades6, R. Nicolson7 and A. Kushki8, Expertise for Neurodevelopmental Disorders and Hypersomnias, Oslo (1)Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada, University Hospital, Oslo, Norway (2)Autism Research Center, Bloorview Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada, (3)Queen’s 413.019 Evaluating Atypical Language in Autism Using Automated University, Kingston, ON, Canada, (4)Psychology, The Hospital for Sick 1 1 2 Discourse Measures A. C. Salem , H. MacFarlane , J. R. Adams , G. O. Children, Toronto, ON, Canada, (5)Psychiatry, The Hospital for Sick 3 4 5 6 Lawley , J. K. Dolata , S. Bedrick and E. Fombonne , (1)Oregon Health Children, Toronto, ON, Canada, (6)McMaster Autism Research Team, & Science University, Portland, OR, (2)Computer Science, Oregon McMaster University, Hamilton, ON, Canada, (7)University of Western Health & Science University, Portland, OR, (3)Computer Science and Ontario, London, ON, Canada, (8)Bloorview Research Institute, Toronto, Electrical Engineering, Oregon Health & Science University, Portland, ON, Canada OR, (4)Department of Pediatrics, Oregon Health & Science University, Portland, OR, (5)Department of Medical Informatics and Clinical 413.028 Investigation on Examiner “Um” and “Uh” Usage in ADOS-2 Epidemiology, Oregon Health & Science University, Portland, OR, (6) Sessions G. O. Lawley1, S. Bedrick2, J. K. Dolata3 and E. Fombonne4, Department of Psychiatry, Oregon Health & Science University, Portland, (1)Computer Science and Electrical Engineering, Oregon Health & OR Science University, Portland, OR, (2)Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, 413.020 Examining the Impact of Electronic Toys on Social Portland, OR, (3)Department of Pediatrics, Oregon Health & Science Interactions between Young Children with Autism Spectrum Disorder University, Portland, OR, (4)Department of Psychiatry, Oregon Health & 1 2 and Their Parents M. Sturman and C. E. Venker , (1)CSD, Michigan Science University, Portland, OR State University, East lansing, MI, (2)University of Wisconsin-Madison, Madison, WI

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413.029 Language Profiles of Russian Primary-School-Aged 413.039 Often Encountered but Rarely Reported - Challenges Children with Autism Spectrum Disorder V. Arutiunian1, A. Lopukhina1, in Selecting Language(s) for Intervention in Bi/Multilingual Children A. Minnigulova1, A. Shlyakhova1, E. Davydova2, D. Pereverzeva2, with Autism Spectrum Disorder M. Srikar, R. Raju, N. Dadlani, P. A. Sorokin2,3, S. Tyushkevich2, U. Mamokhina2, K. Danilina2 and O. Vaidhyanathan, D. Swaminathan and S. S. Meera, National Institute of Dragoy1,4, (1)Center for Language and Brain, HSE University, Moscow, Mental Health and Neurosciences, Bangalore, India Russian Federation, (2)Federal Resource Center for ASD, Moscow State University of Psychology and Education, Moscow, Russian Federation, 413.040 Otitis Media and Language Delays in Autistic Youth T. (3)Haskins Laboratories, New Haven, CT, (4)Federal Center for Stroke McFayden and T. H. Ollendick, Virginia Polytechnic Institute and State and Neurotechnologies, Moscow, Russian Federation University, Blacksburg, VA

413.030 Language Regression As a Predictor of Outcomes in 413.041 Parent Nonverbal Initiations and Child Responses during Children with ASD through the Preschool Years K. E. Prescott1 and S. Free-Play Interactions between Young Children with Autism Spectrum 1 2,3 Ellis-Weismer2, (1)University of Wisconsin - Madison, Madison, WI, (2) Disorder (ASD) and Their Parents G. Mudhar and A. Kaale , (1)Special University of Wisconsin-Madison, Madison, WI Needs Education, University of Oslo, Oslo, Norway, (2)Department of Special Needs Education, University of Oslo, Oslo, Norway, (3) 413.031 Lexical and Morphosyntactic Complexity of Echolalic Norwegian Centre of Expertise for Neurodevelopmental Disorders and Utterances in Low and Minimally Verbal Individuals with ASD L. Butler1, Hypersomnias, Oslo University Hospital, Oslo, Norway S. Shen2, C. G. La Valle3, S. Schwartz4, K. V. Chenausky5 and H. Tager- Flusberg3, (1)Sargent College of Health and Rehabilitation Sciences, 413.042 Parent-Education Via Telehealth during the COVID-19 1 2 2 Boston University, Boston, MA, (2)Department of Speech, Language, Lockdown in Beijing, China E. Ijalba , W. Chen and J. Song , (1) and Hearing Sciences, Boston University, Boston, MA, (3)Department of Linguistics and Communication Disorders, Queens College, CUNY, Psychological and Brain Sciences, Boston University, Boston, MA, (4) Queens, NY, (2)Wucailu, Beijing, China Graduate Program for Neuroscience, Boston University, Boston, MA, (5) 413.043 Parental Concerns of Children with ASD By Age: A Neurology, Beth Israel Deaconess Medical Center, Boston, MA Qualitative Analysis E. F. Dillon1, P. Danika2, C. B. Holingue2, L. Kalb3, 2 2 413.032 Making Autistic Children’s Behavior Accountable: A R. Reetzke and R. Landa , (1)Psychiatry, RUSH University Medical Conversation Analytic Study of Classroom Interactions S. Crowley1 School, Chicago, IL, (2)Center for Autism and Related Disorders, and K. Bottema-Beutel2, (1)Boston College, Chestnut Hill, MA, (2)Lynch Kennedy Krieger Institute, Baltimore, MD, (3)Department of Mental School of Education, Boston College, Chestnut Hill, MA Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 413.033 Measurement of Pragmatic Language in ASD: Clinical Adaptations to the Pragmatic Rating Scale, School-Age (PRS-SA) L. 413.044 Parents’ Declarative Deictic Gesture Use Predicts Bush1, E. F. Dillon2, N. Calderon1, A. Hirshman1, E. V. Ocampo3 and L. Vocabulary Development in Infants at High and Low Risk for Autism 1,2 1,3 3,4 Soorya3, (1)Psychiatry and Behavioral Sciences, Rush University Medical Spectrum Disorder A. B. Choi , L. Castelbaum , R. McKechnie , 2 1,2 5 Center, Chicago, IL, (2)Psychiatry, RUSH University Medical School, M. Rowe , C. A. Nelson and H. Tager-Flusberg , (1)Developmental Chicago, IL, (3)Department of Psychiatry, Rush University Medical Medicine, Boston Children’s Hospital, Boston, MA, (2)Harvard Graduate Center, Chicago, IL School of Education, Cambridge, MA, (3)Boston University, Boston, MA, (4)Boston Children’s Hospital, Boston, MA, (5)Department of 413.034 Moderators of Social Communication Growth during Psychological and Brain Sciences, Boston University, Boston, MA a Parent-Mediated Intervention. K. M. Frost and B. R. Ingersoll, Psychology, Michigan State University, East Lansing, MI 413.045 Patterns of Interactional Prosody in Youth with and without Autism N. G. Ward1, J. M. Contreras1 and H. Lehnert-LeHouillier2, (1) 413.035 Multi-Talker Speech Perception Thresholds in Young Adults Computer Science, University of Texas at El Paso, El Paso, TX, (2) with Autism Spectrum Disorder K. A. Emmons1, A. M. Estes1, S. R. Communication Disorders, New Mexico State University, Las Cruces, Dager2, A. K. Lee1 and B. K. Lau3, (1)Speech and Hearing Sciences, NM University of Washington, Seattle, WA, (2)Radiology, University of Washington, Seattle, WA, (3)Otolaryngology-Head and Neck Surgery, 413.046 Perceptions of Conversational Responses in Adolescents 1 2,3 4 University of Washington, Seattle, WA with and without ASD R. Grossman , E. Zane and A. Newberg , (1) CSD, Emerson College, Boston, MA, (2)FACE Lab, Emerson College, 413.036 Narrative Abilities in Teens with Autism Spectrum Boston, MA, (3)Communication Sciences and Disorders, James Madison Disorder across Two Contexts J. Carmona, C. Boo and L. R. Naigles, University, Harrisonburg, VA, (4)Emerson College, Newton, MA Psychological Sciences, University of Connecticut, Storrs, CT 413.047 Phonological Awareness and Visual Spatial Abilities in 413.037 Narrative Production and Comprehension in Greek- School-Age Children with Autism C. Rimmer1, G. Philibert-Lignieres1, Speaking Children with Autism Spectrum Disorders: Associations with T. Q. Boucher2, G. Iarocci2 and E. M. Quintin3, (1)McGill University, Theory of Mind E. Baldimtsi1, A. Nicolopoulou2 and I. M. Tsimpli3, (1) Montreal, QC, Canada, (2)Psychology, Simon Fraser University, School of Medicine, 1st Department of Neurology, Aristotle University of Burnaby, BC, Canada, (3)Educational & Counselling Psychology, McGill Thessaloniki, Thessaloniki, Greece, (2)Psychology Department, Lehigh University, Montreal, QC, Canada University, Bethlehem, PA, (3)Department of Theoretical and Applied Linguistics, University of Cambridge, Cambridge, United Kingdom

413.038 Naturalistic Joint Attention and Theory of Mind in Children with ASD and TD Peers V. Tecoulesco and L. R. Naigles, Psychological Sciences, University of Connecticut, Storrs, CT

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413.048 Pragmatic Language Difficulties during Scripted Narratives in 413.057 Relations between Mental Terms and Theory-of-Mind Autistic Adults and Significance to Clinical Diagnosis of Autism Spectrum Understanding in Cantonese-Speaking Autistic and Typically Developing Disorder N. Jadav1, C. JohnKlein2, L. T. V. Vo3, E. Wilkinson2 and V. H. Children C. C. H. Cheung1, Y. Rong1, Y. Xiong2, M. T. Leung2 and Bal2, (1)Department of Psychology, Rutgers University-New Brunswick, T. P. Y. Tang2, (1)Research Centre for Language, Cognition, and Piscataway, NJ, (2)Graduate School of Applied and Professional Neuroscience, Department of Chinese and Bilingual Studies, The Hong Psychology, Rutgers University-New Brunswick, Piscataway, NJ, (3) Kong Polytechnic University, Hong Kong, Hong Kong, (2)Department of Western New England University, Springfield, MA Chinese and Bilingual Studies, The Hong Kong Polytechnic University, Hong Kong, Hong Kong 413.049 Pragmatic Language and Aggressive Behavior in ASD: The ACE Gendaar Network M. McCabe1, M. Santhosh2, E. Neuhaus1, 413.058 Say That Again: Quantifying Patterns of Grammatical A. Kresse1, S. J. Webb3 and G. A. Consortium1, (1)Seattle Children’s Production for Children with ASD Using Recurrence Analysis A. Research Institute, Seattle, WA, (2)Center for Child Health, Behavior Mankovich1, K. Wittke2, J. E. Blume3, A. Mastergeorge4, A. Paxton1 and and Development, Seattle Children’s Research Institute, Seattle, WA, (3) L. R. Naigles1, (1)Psychological Sciences, University of Connecticut, Psychiatry and Behavioral Sciences, University of Washington, Seattle, Storrs, CT, (2)University of Connecticut, Storrs, CT, (3)Department WA of Human Development and Family Studies, Texas Tech University, Lubbock, TX, (4)Texas Tech University, Lubbock, TX 413.050 Predicting Language in Children with ASD Using Spontaneous Language Samples and Standardized Language Measures 413.059 School-Entry Language Skills As Predictors of Academic R. P. Thomas1, K. Wittke2, J. E. Blume3, A. Mastergeorge4 and L. R. and Social Outcomes in Kindergarteners with ASD E. P. McKernan1, Naigles1, (1)Psychological Sciences, University of Connecticut, Storrs, A. P. Viggiano2 and S. H. Kim3, (1)Psychiatry, Center for Autism and CT, (2)University of Connecticut, Storrs, CT, (3)Department of Human the Developing Brain, Weill Cornell Medicine, White Plains, NY, (2)Weill Development and Family Studies, Texas Tech University, Lubbock, TX, Cornell Medicine Center for Autism and the Developing Brain (CADB), (4)Texas Tech University, Lubbock, TX White Plains, NY, (3)Psychiatry, Center for Autism and the Developing Brain, White Plains, NY 413.051 Predictors of Augmentative and Alternative Communication System Use in an Inpatient Sample of Youth with ASD E. A. DeLucia, 413.060 Social Language Use and Behavioral and Social T. M. Andrzejewski and C. G. McDonnell, Department of Psychology, Engagement in Inclusive Classrooms for Preschoolers with and without Virginia Polytechnic Institute and State University, Blacksburg, VA ASD R. M. Fasano1, L. K. Perry1, S. Custode1, A. Adams1, L. Vitale1, R. Bulotsky-Shearer1 and D. S. Messinger2, (1)Psychology, University of 413.052 Predictors of Discourse and Pragmatic Language Use in Miami, Coral Gables, FL, (2)University of Miami, Coral Gables, FL Preschoolers with Autism Spectrum Disorder M. G. Pecukonis1,2, C. G. La Valle1,2, J. Leano2, E. Johnston2, D. Stewart2, S. Shen2,3 and H. Tager- 413.061 Social Skills in Multilingual Children with Autism M. Franco1, Flusberg1,2,3, (1)Department of Psychological and Brain Sciences, Boston G. Steffgen2 and A. P. Costa3, (1)University of Luxembourg, Esch-sur- University, Boston, MA, (2)Center for Autism Research Excellence, Alzette, Luxembourg, (2)Institute for Health and Behaviour, University of Boston, MA, (3)Department of Speech, Language, and Hearing Luxembourg, Luxembourg, Luxembourg, (3)University of Luxembourg, Sciences, Boston University, Boston, MA Esch sur Alzette, LUXEMBOURG

413.053 Production of Complex Ba and Bei Sentences in Mandarin- 413.062 Statistical Learning and Its Relation to Language in Speaking Children with ASD: A Corpus-Based Study J. Liu1, Q. Young Children with Autism: An Eye-Tracking Study A. Oldham1, A. Xie1 and Y. E. Su2, (1)Foreign Language Department, Central South Browngoehl2, N. R. Lee1 and G. Vivanti2, (1)Department of Psychology, University, Changsha, China, (2)Childa Language Lab, School of Foreign Drexel University, Philadelphia, PA, (2)A.J. Drexel Autism Institute, Languages, Central South University, Changsha, Hunan, China Drexel University, Philadelphia, PA

413.054 Profiles and Predictors of Reading Abilities in Chinese 413.063 The Association between Language Impairments and Children with Autism Spectrum Disorder J. LIU1 and Y. Wang2, (1) Behaviours of Concern in Autism Spectrum Disorder: A Systematic Tsinghua University, Beijing, China, (2)Department of Psychology, Narrative Review A. Brignell1,2,3, K. Williams4 and C. Y. Z. Chan5, (1) Tsinghua University, Beijing, China Murdoch Children’s Research Institute and University of Melbourne, Melbourne, Australia, (2)Paediatrics, Monash University, Clayton, VIC, 413.055 Pronoun Reversals in Mandarin-Speaking Preschool Australia, (3)Speech Pathology, Australian Catholic University, Fitzroy, 1 1 Children with Autism Spectrum Disorder C. Zhang , Q. Xie and Y. E. VIC, Australia, (4)Department of Paediatrics, Monash University, 2 Su , (1)Central South University, Changsha, China, (2)Childa Language Melbourne, VIC, Australia, (5)University of Melbourne, Melbourne, VIC, Lab, School of Foreign Languages, Central South University, Changsha, Australia Hunan, China 413.064 The Emotional Valences of Passive Sentences in Japanese 413.056 Relating Metalinguistic Abilities and Social Communication By Adolescents with ASD Tendencies K. Yorozuya1, J. Adachi2, M. Skills in Autism N. M. Carlson, K. E. Hannah, K. McRae and R. A. Saito3 and R. Yorozuya4, (1)Educaiton, Hokkaido University, sapporo, Stevenson, Psychology, University of Western Ontario, London, ON, Japan, (2)Graduate School of Education, Hokkaido University, Sapporo, Canada Japan, (3)Department of Special Education, Hokkaido University of Education, Sapporo, Sapporo, Japan, (4)Department of English Language Education, Hokkaido University of Education, Sapporo, Sapporo, Japan

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413.067 “I Could Not Quite Figure out What It Was about. They 414.007 Associations between Objectively Measured Social Never Say It Directly” – Contextually Relevant Inferencing and Narration Movements during the ADOS-2 and Autism Symptoms in Preschool By Young Adults with and without an Autism Spectrum Disorder Age Children with Suspected ASD J. M. Moffitt1, Y. Tao2, Y. A. Ahn3, S. Diagnosis K. Dindar1, S. Loukusa1, E. Leinonen2, L. Mäkinen1, L. Custode4, A. L. Beaumont5, S. M. Cardona4, M. Parladé5, J. Durocher5, Mämmelä1, M. L. Mattila3, H. E. Ebeling3 and T. Hurtig4, (1)Research M. N. Hale5, M. Alessandri5, L. K. Perry4, M. L. Shyu6 and D. S. Unit of Logopedics, University of Oulu, Oulu, Finland, (2)Office of the Messinger5, (1)Center for Autism, California State University, Fullerton, Vice Chancellor, Murdoch University, Perth, Australia, (3)Clinic of Child Fullerton, CA, (2)University of Miami, Miami, FL, (3)Seattle Children’s Psychiatry and PEDEGO Research Unit, Oulu University Hospital Research Institute, Seattle, WA, (4)Psychology, University of Miami, and University of Oulu, Oulu, Finland, (4)Research Unit of Clinical Coral Gables, FL, (5)University of Miami, Coral Gables, FL, (6)Electrical Neuroscience, Clinic of Child Psychiatry and PEDEGO Research Unit, and Computer Engineering, University of Miami, Coral Gables, FL University of Oulu and Oulu University Hospital, Oulu, Finland 414.008 Autism Assessment in Low- and Middle-Income Countries: Feasibility and Usability of Western Tools K. Bauer1, K. L. Morin2 and A. Blasko1, (1)Lehigh University, Bethlehem, PA, (2)University of North Poster Session Carolina, Chapel Hill, Chapel Hill, NC Poster 414 - Diagnostic, Behavioral, Sensory and 414.009 Autism Related and Traditional Presentations of Anxiety in Intellectual Screening and Assessment Autistic Children J. Eastland1, M. Freeston1, D. Garland2, J. Goodwin3, V. Grahame2, A. Kernohan3, M. Labus4, M. R. Osborne5, J. R. Parr6, C. 414.001 A Preliminary Investigation of Function of Fear in Those with Wright7 and J. Rodgers6, (1)Newcastle University, Newcastle Upon Tyne, 1 2 1 ASD K. S. Ellison , E. S. Ranzino and T. E. Davis , (1)Department of United Kingdom, (2)Cumbria, Northumberland, Tyne and Wear NHS Psychology, Louisiana State University, Baton Rouge, LA, (2)Department Foundation Trust, Newcastle upon Tyne, United Kingdom, (3)Population of Psychology, Lousiana State University, Baton Rouge, LA Health Sciences Institute, Newcastle University, Newcastle Upon Tyne, United Kingdom, (4)Research and Enterprise Services, Faculty of 414.002 A Qualitative Study on the Diagnostic Experience of Autistic Medical Sciences, Newcastle University, Newcastle Upon Tyne, United Females in Hong Kong K. C. C. Chow and G. Y. H. Lam, Department Kingdom, (5)South Tyneside’s Kids And Young Adults Klub - Special of Educational Psychology, The Chinese University of Hong Kong, Hong needs support group (KAYAKS), South Shields, United Kingdom, (6) Kong, Hong Kong Population Health Sciences Institute, Newcastle University, Newcastle 414.003 Adaptive Behavior in Racial/Ethnically Diverse Children upon Tyne, United Kingdom, (7)Child and Adolescent Mental Health with Autism Spectrum Disorder S. Vanegas1, M. Davila2, C. Le2 and A. Service, Northumbria Healthcare NHS Foundation Trust, North Shields, M. Hernandez2, (1)School of Social Work, Texas State University, San United Kingdom Marcos, TX, (2)Texas State University, San Marcos, TX 414.010 Autism Spectrum Disorder Evaluation in Children with a 414.004 Agreement and Discrepancies in Parent, Teacher and History of Foster Care or Trauma Exposure H. Adams, L. Swails and E. Observational Reports of Emotional and Behavioural Problems in Zhang, University of Kansas Medical Center, Kansas City, KS Young Autistic Children M. Palmer1, J. Tarver2, V. Carter Leno1, J. Paris 414.011 Behavioral Gender Differences in School-Age Children Perez1, M. Frayne1, V. Slonims3, A. Pickles1, S. Scott1, E. Simonoff1 with ASD M. S. Sanchez1, J. C. Bullen2 and P. Mundy3, (1)School and T. Charman4, (1)King’s College London, Institute of Psychiatry, of Education, University of California Davis, Davis, CA, (2)University Psychology and Neuroscience, London, United Kingdom, (2)Aston of California, Davis, Davis, CA, (3)University of California at Davis, University, Birmingham, United Kingdom, (3)Guy’s & St Thomas’ NHS Sacramento, CA Foundation Trust (Evelina Children’s Hospital), London, United Kingdom, (4)Department of Psychology, Institute of Psychiatry, Psychology and 414.012 Behavioral and Cognitive Impairments in Comorbid Neuroscience, King’s College London, London, United Kingdom ASD+ADHD Group Compared to ASD and ADHD: A Preliminary Meta- Analysis Z. Gao1 and L. Chen2, (1)Santa Clara University, Santa Clara, 414.005 An Evaluation of Tele-Assessments: Perspectives of Adult CA, (2)500 El Camino Real, Santa Clara University, Santa Clara, CA Clients, Carers, and Clinicians R. Y. Cai1 and V. Gibbs2, (1)Aspect Research Centre for Autism Practice, Autism Spectrum Australia, 414.013 Characteristics of Children with Conflicting ASD Diagnoses Melbourne, VIC, Australia, (2)Aspect Research Centre for Autism I. Menashe1,2, O. Yechimovitz Bendet3, G. Meiri2,4, M. Faroy5, M. Ilan6, H. Practice, Autism Spectrum Australia, Sydney, NSW, Australia Flusser2, A. Michaelovski7 and I. Dinstein6, (1)Public Health, Ben Gurion University, Beer Sheva, Israel, (2)National Autism Research Center, 414.006 Assessment Profiles of Toddlers Referred for ASD Concerns Beer Sheva, Israel, (3)Ben-Gurion University of the Negev, Beer Sheva, Based on Foster Care Status L. J. Dilly1, K. Railey2 and A. Pavlov1, Israel, (4)Preschool Psychiatric Unit, Soroka University Medical Center, (1)Marcus Autism Center, Atlanta, GA, (2)Emory University School of Beer Sheva, Israel, (5)Soroka Medical Center, Beer Sheba, Israel, (6) Medicine and Children’s Healthcare of Atlanta, Atlanta, GA Psychology Department, Ben-Gurion University of the Negev, Beer Sheva, Israel, (7)Child Development Center, Soroka University Medical Center, Beer Sheva, Israel

414.014 Characterizing Dysregulation in Autistic Youth Using the Child Behavior Checklist-Dysregulation Profile K. Schauder, S. Rau, A. C. Armour and L. Kenworthy, Center for Autism Spectrum Disorders, Children’s National Hospital, Washington, DC

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414.015 Characterizing the Heterogeneity in ASD Symptomatology in 414.024 Critical Examination of Five Major Level Two Screeners for Individuals with ASD Compared to TD Controls J. Benes1 and L. Chen2, Autism Spectrum Disorder N. Bergamo1, M. Stoll1, M. A. Volker1 and (1)Santa Clara University, Santa Clara, CA, (2)500 El Camino Real, S. L. Brennan2, (1)Counseling, Educational Psychology, and Special Santa Clara University, Santa Clara, CA Education, Michigan State University, East Lansing, MI, (2)Department of Counseling, Educational Psychology, and Special Education, Michigan 414.016 Children with Minimal Verbal Skills and Autism Use State University, East Lansing, MI of Communicative Functions and Communication Partner across Naturalistic Setting S. Suswaram1 and N. Brady2, (1)Speech Language 414.025 Demonstration of Behavioral and Emotional Problems in Hearing: Sciences and Disorders, University of Kansas, Lawrence, KS, Children with ASD Presented By the Dbc-P Scale C. V. Tran1 and P. (2)University of Kansas, Lawrence, KS N. Nguyen2, (1)Department of Educational Sciences, VNU University of Education, Hanoi, Viet Nam, (2)VNU University of Education, Hanoi, Viet 414.017 Cognitive and Communication Profiles of Minimally Verbal Nam Children with Autism Spectrum Disorder M. Pizzano1 and C. Kasari2, (1) Education, University of California, Los Angeles, Los Angeles, CA, (2) 414.026 Detecting Feeding Problems in Young Children with Autism University of California, Los Angeles, Los Angeles, CA Using a General Screener E. M. Blijd-Hoogewys1, M. Buruma1 and M. W. van Dijk2, (1)INTER-PSY, Groningen, Netherlands, (2)Developmental 414.018 Comparison of Autism Diagnostic Observation Schedule psychology, University of Groningen, Groningen, Netherlands (ADOS-2) Standardized Procedures to Assessment with Safety- Related Modifications Due to COVID-19 G. Binion1, J. Ferguson2, C. 414.027 Development and Initial Validation of Simba: Sensory Klaiman3, S. P. White4 and S. Sivathasan5, (1)Clinical Assessment and Sensitivity Instrument Measuring Behavioural Responses in Autism M. Diagnostics, Marcus Autism Center, Atlanta, GA, (2)Clinicial Assessment Balabanovska1, K. Leadbitter1, C. Ellis1, K. James2 and J. Green3, (1) and Diagnostics, Marcus Autism Center, Atlanta, GA, (3)Marcus Autism University of Manchester, Manchester, United Kingdom, (2)Institute of Center, Children’s Healthcare of Atlanta and Emory University School of Psychiatry, Psychology & Neuroscience, King’s College London, London, Medicine, Atlanta, GA, (4)Department of Pediatrics, Emory University, United Kingdom, (3)University of Manchester, Manchester, United Atlanta, GA, (5)Educational & Counselling Psychology, McGill University, Kingdom of Great Britain and Northern Ireland Montreal, QC, Canada 414.028 Development of a Tablet-Based Measure of Concept 414.019 Comparison of COVID-19 Adapted Telehealth Versus Formation Ability for Children with ASD and Other Neurodevelopmental Standard-of-Care Protocols for the Diagnostic Assessment of Autism Disorders E. E. Condy1, L. Becker2, A. J. Kaat3, N. Sullivan4, L. Soorya5, Spectrum Disorder S. Sivathasan1, G. Binion2, J. Ferguson3, S. P. C. Michalak6, N. Berger7 and A. Thurm1, (1)National Institute of Mental White4 and C. Klaiman5, (1)Educational & Counselling Psychology, Health, Bethesda, MD, (2)NIH, Bethesda, MD, (3)Department of Medical McGill University, Montreal, QC, Canada, (2)Clinical Assessment and Social Sciences, Northwestern University, Chicago, IL, (4)Boston Diagnostics, Marcus Autism Center, Atlanta, GA, (3)Clinicial Assessment Children’s Hospital, Boston, MA, (5)Department of Psychiatry, Rush and Diagnostics, Marcus Autism Center, Atlanta, GA, (4)Department University Medical Center, Chicago, IL, (6)Rush University Medical of Pediatrics, Emory University, Atlanta, GA, (5)Marcus Autism Center, Center, Chicago, IL, (7)Michigan State University, East Lansing, MI Children’s Healthcare of Atlanta and Emory University School of Medicine, Atlanta, GA 414.029 Developmental Trajectories in Autism Based on Symptoms Measured By the Vineland Adaptive Behavior Scale Second Edition 414.020 Concordance between Parent and Child Report of Sleep Using Observational Data from North America and Europe C. Liu1, Disturbance and Sleep-Related Impairment in Autistic and Non-Autistic M. Silkey1, H. Furby2, Y. Zhu2, T. Charman3 and M. Johnson2, (1) Youth L. D. Yankowitz1, K. Bevans2, J. R. Schuchard3 and L. J. Meltzer4, Personalised Health Care, F. Hoffmann-La Roche Ltd, Basel, (1)Center for Autism Research, Children’s Hospital of Philadelphia, Switzerland, (2)Personalised Health Care, F. Hoffmann-La Roche Ltd, Philadelphia, PA, (2)Rehabilitation Sciences, Temple University, Welwyn Garden City, United Kingdom, (3)Department of Psychology, Philadelphia, PA, (3)Children’s Hospital of Philadelphia, Philadelphia, PA, Institute of Psychiatry, Psychology and Neuroscience, King’s College (4)Pediatric Behavioral Health, National Jewish Health, Denver, CO London, London, United Kingdom

414.021 Concurrent Validity of Parent Report and Behavioral 414.032 Do the SF-36 and the Whoqol-Bref Measure Similar Aspects Assessments of Communication and Social Skills in 18-Month-Old of Quality of Life in Autistic Adults? N. C. Russell1, D. B. Kay1, Z. Infants at Low- and High-Familial-Risk for ASD M. Hartney1, L. Simmons2, D. Cimmino1 and M. South3, (1)Psychology, Brigham Young Castelbaum1,2, C. L. Wilkinson1, H. Tager-Flusberg2 and C. A. Nelson1, University, Provo, UT, (2)Brigham Young University, Provo, UT, (3) (1)Developmental Medicine, Boston Children’s Hospital, Boston, MA, Psychology & Neuroscience, Brigham Young University, Provo, UT (2)Department of Psychological and Brain Sciences, Boston University, Boston, MA 414.033 Does Knowledge of Child Development Predict ASD Knowledge, Stigma, Recognition, and Treatment-Seeking? M. M. Abdul- 414.022 Consistency of Reporting Presence and Severity Chani1, F. J. Biasini2 and S. E. O’Kelley3, (1)Psychology, The University of Restricted and Repetitive Behaviors on Parent and Clinician of Alabama at Birmingham, Birmingham, AL, (2)Psychology, University of Based Measures B. Rozumny1, S. Mussarrat2 and E. Hanson3, (1) Alabama at Birmingham, Birmingham, AL, (3)The University of Alabama Developmental Medicine, Boston Children’s Hospital, Boston, MA, (2) at Birmingham, Birmingham, AL Boston Children’s Hospital, Boston, MA, (3)Boston Children’s Hospital/ Harvard Medical School, Boston, MA 414.034 Early Detection for Better Outcomes: Building Capacity to Identify and Support Children with Early Signs of Autism in Early 414.023 Creating Clinically Significant Cut Points within a Social Childhood Education and Care Settings B. Mozolic-Staunton, Health Communication Measure: Application of Machine Learning to the and Human Sciences, Southern Cross University, Gold Coast, QLD, Assessment of Minimally Verbal Children with ASD A. J. Schlink and C. Australia Kasari, University of California, Los Angeles, Los Angeles, CA

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414.035 Early Detection of ASD By Community-Based Screening 414.043 Feasibility of ASD Risk Assessment Training and Real- Focusing on Sensory Processing Patterns M. Adachi1,2, M. Takahashi1,2, Time Support Via the Paisley Digital Platform: Preliminary Convergent T. Hirota3, M. Mikami4, H. Shinkawa5, H. Mori5, T. Mikami5, M. Saito6, T. Validity of the ASD-PEDS with Established Instruments J. W. Wade1, Hagiwara7 and K. Nakamura5,6, (1)Department of Clinical Psychological A. Swanson2, A. S. Weitlauf3, N. Sarkar4 and Z. Warren5, (1)Adaptive Science, Hirosaki University, Hirosaki, Japan, (2)Research Center for Technology Consulting, Murfreesboro, TN, (2)Vanderbilt Kennedy Child Mental Development, Graduate School of Medicine, Hirosaki Center, Vanderbilt University Medical Center, NASHVILLE, TN, (3) University, Hirosaki, Japan, (3)University of California, San Francisco Vanderbilt Kennedy Center, Vanderbilt University Medical Center, (UCSF), San Francisco, CA, (4)Graduate School of Health Sciences, Nashville, TN, (4)Mechanical Engineering; Electrical Engineering and Hirosaki University, Hirosaki, Japan, (5)Research Center for Child Computer Science, Vanderbilt University, Nashville, TN, (5)Vanderbilt Mental Development, Graduate School of Medicine, Hirosaki University, University Medical Center, Nashville, TN Hirosaki, Japan, (6)Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki University, Hirosaki, Japan, (7)Hokkaido University of 414.044 How Does Parent and Examiner Question Use Differ during 1 2 Education, Asahikawa, Asahikawa, Hokkaido, JAPAN Natural Language Sampling? H. Baker-Harvey , M. Barokova , C. G. La Valle2, H. Tager-Flusberg2 and L. Raymond1, (1)Boston University, 414.036 Evaluating Feasibility and Acceptability of a Telehealth Boston, MA, (2)Department of Psychological and Brain Sciences, Boston Model for Autism Spectrum Disorder Diagnostic Evaluations from University, Boston, MA Toddlerhood to Adulthood N. L. Matthews, E. Skepnek, A. Malligo, J. James, M. Mammen, S. Kiefer, A. Lyon, M. Mitchell and C. J. Smith, 414.045 I Know How I Am Feeling! Understanding Similarities and Southwest Autism Research & Resource Center, Phoenix, AZ Discrepancies between Adolescent-Parent Dyads’ Reports of Autistic Youths’ Emotional States across a Randomised Controlled Trial of 414.037 Evaluating Reporter Agreement and Implications for Clinical Kontakt® B. Afsharnejad1, M. H. Black2, M. Falkmer3, A. M. Fridell4, C. Diagnosis of Autism Spectrum Disorder and Intellectual Disability M. Coco5, S. Bolte6 and S. J. Girdler2, (1)Autism Research Team, Telethon Stevens1, K. Selders2, O. Jeckel1, V. Brownfield1 and K. Nowell3, (1) Kids Institute, Perth, Australia, (2)School of Occupational Therapy, Social University of Missouri, Columbia, MO, (2)Thompson Center for Autism Work and Speech Pathology, Curtin University, Perth, WA, Australia, (3) and Neurodevelopmental Disorders, Columbia, MO, (3)Thompson Center Curtin University, Bentley, Australia, (4)Karolinska institute, Stockholm, for Autism & Neurodevelopmental Disorders, Columbia, MO Sweden, (5)Karolinska Institutet, Stockholm, Sweden, (6)Center of Neurodevelopmental Disorders (KIND), Centre for Psychiatry Research; 414.038 Evaluating the Measurement Invariance of the CBCL Department of Women’s and Children’s Health, Karolinska Institutet, & between Minimally Verbal and Verbal Children with Autism Spectrum Stockholm Health Care Services, Region Stockholm, Stockholm, Sweden Disorder. M. Fok1, E. A. DeLucia1, T. M. Andrzejewski1, A. Scarpa2 and C. G. McDonnell1, (1)Department of Psychology, Virginia Polytechnic 414.046 Identifying Which Patients Seeking Autism Spectrum Institute and State University, Blacksburg, VA, (2)Virginia Polytechnic Disorder Evaluation May Receive Diagnostic Clarity through an Institute and State University, Blacksburg, VA Initial Virtual Assessment R. A. Phelps, E. Sample, R. K. Greene, A. Shahabuddin and S. W. Duvall, Oregon Health & Science University, 414.039 Evidence Map of Spanish-Language Measures of Autism Portland, OR Symptoms: A Review of Translation Methods and Psychometric Properties M. DuBay1, H. Lee2 and K. Boettcher3, (1)University of North 414.047 Innovative Approaches Implemented By UK Childhood Carolina, Chapel Hill, NC, (2)Chan Division of Occupational Science and Autism Diagnostic Services to Manage Increased Referrals and Reduce Occupational Therapy, University of Southern California, Los Angeles, Waiting Times S. Wigham1, W. Farr2, I. Male3 and J. R. Parr1, (1) CA, (3)University of Virginia, Charlottesville, VA Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom, (2)Sussex Community NHS Trust, 414.040 Examining Sex and Ethnic Parity in the Psychometric Haywards Heath, United Kingdom, (3)Mid Sussex Child Develoment Properties of the Screening Tool for Autism in Toddlers (STAT) S. M. Team, Sussex Community NHS Trust, Haywards Heath, United Kingdom Attar1, L. V. Ibanez2 and W. L. Stone3, (1)University of Washington, Seattle, WA, (2)UW READi Lab, Seattle, WA, (3)Psychology, University 414.048 Intellectual Disability in a Group of African Children with of Washington, Seattle, WA Autism Spectrum Disorder: Associated Factors and Implications for Educational Placement M. Bello-Mojeed1, A. Adeyemi1 and M. Bakare2, 414.041 Exploration of Anxiety Symptoms in Three-Year-Olds (1)Medical, Federal Neuropsychiatric Hospital, Yaba, Nigeria, (2)Federal with and without ASD Reveals Distinctive Symptom Structure D. M. Neuro-Psychiatric Hospital, Upper Chime, New Haven, Enugu, Enugu Goncalves Fortes, C. Banarjee, H. Feiner, M. Butler, E. Diamond, R. State, Nigeria, Enugu, Nigeria Foster, A. Boxberger, E. Brennan-Wydra, S. Macari and K. Chawarska, Child Study Center, Yale University School of Medicine, New Haven, CT 414.049 Interaction of Sex and Items on the M-CHAT Increases Specificity of Autism Identification K. D. Riley1, F. Shic2, S. Schjolberg3 414.042 Exploring Caregiver Differences in Naturalistic and R. A. Øien4, (1)Seattle Children’s Research Institute, Seattle, WA, 1 Developmental Behavioral Intervention (NDBI) Strategies N. Cristallo , (2)Center for Child Health, Behavior and Development, Seattle Children’s 2 3 4 5 6 1 D. Swain , K. Tang , A. M. Estes , S. J. Rogers , C. Lord and S. H. Kim , Research Institute, Seattle, WA, (3)Norwegian Institute of Public Health, (1)Psychiatry, Center for Autism and the Developing Brain, White Plains, Oslo, NORWAY, (4)The Arctic University of Norway, Tromso, NORWAY NY, (2)Virginia Polytechnic Institute and State University, Blacksburg, VA, (3)University of Notre Dame, South Bend, IN, (4)Speech and 414.050 Interdisciplinary Assessment for Autism in Young Children: Hearing Sciences, University of Washington, Seattle, WA, (5)Department Comparative Analysis of Two Interdisciplinary Clinics at an Academic of Psychiatry and Behavioral Sciences, The Medical Investigation of Medical Center R. Sumner1, C. Gilchrest1 and L. Gardner2, (1)Johns Neurodevelopmental Disorders (MIND) Institute, UC Davis School of Hopkins All Children’s Hospital, St Petersburg, FL, (2)Johns Hopkins All Medicine, University of California Davis, Sacramento, CA, (6)University Children’s Hospital, St. Petersburg, FL of California, Los Angeles, Los Angeles, CA

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414.051 Investigating the Validity and Reliability of the Dutch 414.056 Normative Sample of the Alsolife Skills Assessment System Translation of the Camouflaging Autism Traits Questionnaire (CAT-Q-NL) and Comparisons to Children with Autism B. Wang1, X. Bai2,3, Z. Zhu2,3, W. J. van der Putten1,2, J. Agelink van Rentergem1, T. A. Radhoe1, C. X. Li2,3 and F. Y. Lin1, (1)ALSOLIFE, beijing, China, (2)Key Laboratory of Torenvliet1, A. P. Groenman1, A. Mol2 and H. M. Geurts1,2, (1)University Mental Health, Institute of Psychology, Chinese Academy of Sciences, of Amsterdam, Amsterdam, Netherlands, (2)dr. Leo Kannerhuis, beijing, China, (3)University of Chinese Academy of Sciences, beijing, Amsterdam, Netherlands China

414.052 Measurement Invariance across Gender of the ASRS in a 414.057 Objective Assessment of Sensory Reactivity in Adnp Non-Clinical Diverse Sample M. E. Golson1, S. E. Schwartz1, M. McClain Syndrome C. Layton1, T. Levy1, S. M. Lurie1,2, N. Benrey1,2, J. Zweifach1, Verdoes1, K. Bakner1, T. P. Gabrielsen2 and B. Harris3, (1)Psychology, M. A. Rowe3, L. Tang4, S. B. Guillory1, D. Halpern1, I. Giserman-Kiss5, Utah State University, Logan, UT, (2)Counseling & Special Education, M. P. Trelles1, J. H. Foss-Feig1, T. Tavassoli6, J. D. Buxbaum7, S. De Brigham Young University, Provo, UT, (3)Department of Pediatrics, Rubeis8, A. Kolevzon1 and P. M. Siper1, (1)Seaver Autism Center for University of Colorado, Denver, CO Research and Treatment, Department of Psychiatry, Icahn School of Medicine at Mount Sinai Hospital, New York, NY, (2)Ferkauf Graduate 414.053 Modality Influences Parents’ Responses to MCHAT-R School of Psychology, Yeshiva University, Bronx, NY, (3)Department 1 2 3 Follow-up Items K. D. Kelly , L. E. Bradstreet , S. M. Attar , R. of Radiology and Biomedical Imaging, University of California, San 4 1 K. Ramsey and D. L. Robins , (1)A.J. Drexel Autism Institute, Francisco, San Francisco, CA, (4)David Geffen School of Medicine Drexel University, Philadelphia, PA, (2)Pediatric Psychology and at UCLA, Los Angeles, CA, (5)Neurodevelopmental and Behavioral Neuropsychology Department, Nationwide Children’s Hospital, Phenotyping Service, National Institutes of Mental Health, Bethesda, Colombus, OH, (3)University of Washington, Seattle, WA, (4)Nisonger MD, (6)Centre for Autism, School of Psychology & Clinical Language Center, The Ohio State University, Columbus, OH Sciences, University of Reading, Reading, United Kingdom, (7) Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New 414.054 No Differences at Either 3 Years or 8 Years of Age between York, NY, (8)The Mindich Child Health and Development Institute, Icahn Autistic Girls and Boys Participating in a Prospective Longitudinal Study School of Medicine at Mount Sinai, New York, NY of Siblings at Elevated Likelihood of Autism in Measures of Autistic 1 Symptomatology, Socialization or Cognitive Ability G. Pasco , S. 414.058 Observed Sensory Modulation Behaviors and Their 2 3 4 5 6 Chandler , K. Hudry , E. Shephard , B. Milosavljevic , E. Salomone , Relationship to Parent- and Child-Reports in Children and Adolescents 7 8 9 10 11 I. Gammer , E. J. Jones , M. Johnson , T. Charman , C. Cheung with Autism Spectrum Disorder S. Ramappa1,2, J. Jung2, R. Chu3, K. K. 1 and &. The BASIS Team , (1)Institute of Psychiatry, Psychology and Cummings4, G. Patterson1, M. Dapretto2, S. Y. Bookheimer2 and S. A. Neuroscience, King’s College London, London, United Kingdom, Green2, (1)University of California, Los Angeles, Los Angeles, CA, (2) (2)King’s College London, Institute of Psychiatry, Psychology and Dept of Psychiatry and Biobehavioral Sciences, University of California, Neuroscience, London, United Kingdom, (3)La Trobe University, Los Angeles, Los Angeles, CA, (3)Growing Healthy Children Therapy Melbourne, Australia, (4)Institute of Psychiatry, Psychology and Services, Inc., Rescue, CA, (4)Semel Institute of Neuroscience and Neuroscience, King’s College London, London, United Kingdom of Great Human Behavior, University of California, Los Angeles, Los Angeles, CA Britain and Northern Ireland, (5)Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UNITED KINGDOM, 414.060 Online Administration of the ADOS for Research in (6)Department of Psychology, University of Milan-Bicocca, Milan, Italy, Response to the Pandemic I. M. Eigsti1, R. P. Thomas1, A. Mohan1, (7)Surrey & Borders Partnership NHS Foundation Trust, Tunbridge M. J. Stabile1, M. F. Dieckhaus1, J. Crutcher2, E. Taverna3 and D. A. Wells, United Kingdom, (8)Centre for Brain and Cognitive Development, Fein1, (1)Psychological Sciences, University of Connecticut, Storrs, CT, Birkbeck, University of London, London, United Kingdom, (9)Department (2)NIMH, Bethesda, MD, (3)Department of Psychological Sciences, of Psychology, University of Cambridge, Cambridge, United Kingdom, University of Connecticut, Storrs, CT (10)Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom, (11) 414.061 Pain Anticipation and Empathy for Pain Towards Social Centre for Brain and Cognitive Development, Birkbeck University of and Non-Social Agents in Adults with ASD: A Novel Psychophysiology 1 2 London, London, United Kingdom Artificial Neural Networks Based Study J. De Angelis , P. Ricciardelli and E. Grossi3, (1)Psychology, University of Milano-Bicocca, Milano, 414.055 Non-Inferiority of a Rapid 5-Item Version of the Social Italy, (2)Psychology, University of Milano - Bicocca, Italy, Milano, Italy, Responsiveness Scale for the Identification of Autism Spectrum Disorder (3)Autism Research Unit, Villa Santa Maria Foundation, Tavernerio, Italy M. Eliasziw1, A. Bowling2, T. Kral3, S. Magaña4, L. Sikich5, H. Stanish6, D. Tybor7, L. G. Bandini8, C. Curtin9 and A. Must1, (1)Tufts University 414.062 Parent Concerns of Infants at Familial Risk for Autism during 1 2 3 School of Medicine, Boston, MA, (2)School of Health Sciences, the COVID-19 Pandemic G. MacNaughton , A. Tran and S. Jeste , Merrimack College, North Andover, MA, (3)University of Pennsylvania (1)UCLA Semel Institute, Los Angeles, CA, (2)David Geffen School of School of Nursing, Philadelphia, PA, (4)Steve Hicks School of Social Medicine at UCLA, Los Angeles, CA, (3)University of California, Los Work, University of Texas at Austin, Austin, TX, (5)Department of Angeles, Los Angeles, CA Psychiatry and Behavioral Sciences, Duke Center for Autism and Brain Development, Durham, NC, (6)Department of Exercise and Health Sciences, University of Massachusetts- Boston, Boston, MA, (7)Public Health and Community Medicine, Tufts University, Boston, MA, (8) Eunice Kennedy Shriver Center, University of Massachusetts Medical School, Worcester, MA, (9)University of Massachusetts Medical School, Waltham, MA

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414.063 Parental Experiences with Early Identification and Initial 414.072 Reliability and Validity of a Denver Developmental Screening Care of Their Child with Autism. a Mixed-Method Design M. Snijder1,2, I. Test Complemented Autism Screening Checklist in Chinese ASD Langerak3, S. Kaijadoe4, J. K. Buitelaar5 and I. J. Servatius-Oosterling4, Population Z. H. Ma1, X. Li2, H. Wang2 and F. Y. Lin3, (1)ALSOLIFE, (1)Karakter Child and Adolescent Psychiatry University Centre, Beijing, China, (2)Peking University Sixth Hospital, National Clinical Nijmegen, Netherlands, (2)Radboud University Medical Centre, Donders Research Center for Mental Disorders, Beijing, China, (3)ALSOLIFE, Institute for Brain, Cognition and Behavior, Nijmegen, Netherlands, beijing, China (3)Karakter, kinder-en jeugdpsychiatrie, Nijmegen, Netherlands, (4) Karakter Child and Adolescent Psychiatry University Center, Nijmegen, 414.073 Reliability and Validity of the Alsolife Skills Assessment Netherlands, (5)Department of Cognitive Neuroscience, Donders Institute System in Chinese Families of Children with Autism Spectrum Disorders 1,2 3 4 1,2 1,2 3 for Brain, Cognition and Behaviour, Radboud University Nijmegen X. Bai , B. Wang , Y. Guo , Z. Zhu , X. Li and F. Y. Lin , (1) Medical Centre, Nijmegen, Netherlands Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, beijing, China, (2)University of Chinese Academy 414.064 Parental Knowledge in Screening for Autism Spectrum of Sciences, beijing, China, (3)ALSOLIFE, beijing, China, (4)Peking Disorder J. A. Rankin1, T. S. Tomeny2 and A. M. Birnschein2, (1) University Sixth Hospital, beijing, China Department of Psychiatry, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, (2)Psychology, The University of Alabama, 414.074 Role of Provider Concern during Primary Care Screening 1 2 Tuscaloosa, AL for Early Identification of ASD A. T. Wieckowski , R. K. Ramsey , K. L. Coulter3, Y. Algur4, V. Ryan4, S. Y. Eldeeb1, L. B. Adamson5, A. C. 414.065 Parenting Stress in Mothers and Fathers of Children Who Stahmer6 and D. L. Robins1, (1)A.J. Drexel Autism Institute, Drexel Have Autism Spectrum Disorder or Intellectual Disability S. Patel1, M. University, Philadelphia, PA, (2)Nisonger Center, The Ohio State Rivard2, C. Mello3 and D. Morin4, (1)Psychology, Université du Québec University, Columbus, OH, (3)Psychological Sciences, University à Montréal, Montreal, QC, Canada, (2)Psychology, Université du of Connecticut, Storrs, CT, (4)Epidemiology & Biostatistics, Drexel Québec à Montréal, Montréal, QC, Canada, (3)Applied Psychology, The University, Philadelphia, PA, (5)Psychology, Georgia State University, Pennsylvania State University, University Park, PA, (4)Université du Atlanta, GA, (6)Psychiatry and Behavioral Sciences, UC Davis MIND Québec à Montréal, Montréal, QC, Canada Institute, Sacramento, CA

414.066 Pediatrician Referral Practices for Early Self-Injury in Young 414.075 Scatter on Stanford-Binet 5th Edition Routing Subtests Children with Intellectual and Developmental Disabilities J. Fodstad1,2, Reduces Predictive Validity of Abbreviated Battery IQ in a Clinical J. Mehringer3 and N. Scheive3, (1)Indiana University School of Medicine, Sample of Youth with Ndds K. G. Stephenson, J. Horack and E. Butter, Indianapolis, IN, (2)Indiana University Health Physicians, Indianapolis, Nationwide Children’s Hospital, Columbus, OH IN, (3)Indiana University Purdue University - Indianapolis, Indianapolis, IN 414.076 Screening for ASD with Telehealth Rapid Interactive Screening Test for Autism in Toddlers (RITA-T) R. Choueiri1, M. Ravi2 414.067 Phenotypic Sex Differences and Sex Ratio in Latin-American and W. Garrison3, (1)University of Massachusetts Memorial Children’s Children with Autism A. Torres and C. Nava, Psychological Science, Medical Center, North Worcester, MA, (2)UMass Children’s Hospital, University of Texas Rio Grande Valley, Edinburg, TX Worcester, MA, (3)Pediatrics, Developmental and Behavioral Pediatrics, University of Massachusetts Medical School, Worcester, MA 414.068 Practitioners’ Experiences in Assessing Females with Autism N. C. Freeman1 and P. Paradis2, (1)Faculty of Education, Monash 414.077 Screening for Depression in Young Adults with Autism University, Monash University, VIC, Australia, (2)Krongold Clinic, Monash Spectrum Disorder A. Sirsikar1 and I. M. Eigsti2, (1)University of University, Monash University, Clayton, VIC, Australia Connecticut, Storrs, CT, (2)Psychological Sciences, University of Connecticut, Storrs, CT 414.069 Predicting Diagnosis of Autism Spectrum Disorder Using Health Claims Data in Young Children Y. H. Chen1, Q. Chen1, L. 414.078 Sex Differences in Universal Autism Screening Using Kong2 and G. Liu2, (1)Industrial and Manufacturing Engineering, The the M-CHAT in Primary Care L. K. Steinbeck, C. J. Zampella, L. S. Pennsylvania State University, State College, PA, (2)Penn State College Cubit, M. Drye, M. Fecher, L. A. Wang, K. E. Wallis, J. S. Miller and W. of Medicine, Hershey, PA Guthrie, Center for Autism Research, Children’s Hospital of Philadelphia, Philadelphia, PA 414.070 Psychometric Analysis and Measurement Invariance of a Measure of Challenging Behavior in Infants and Toddlers with Autism 414.079 Sex Differences in the ADOS-2 in ASD Verbal Youth H. Spectrum Disorder T. L. Benninger1, A. Witwer2 and M. Norris1, (1)Child Rea1,2, S. J. Webb3, M. Santhosh4, R. A. Øien5, K. D. Riley6 and F. Development Center, Nationwide Children’s Hospital, Westerville, OH, Shic4, (1)Center for Human Development and Disability, University (2)The Ohio State University, Columbus, OH of Washington, Seattle, WA, (2)Psychiatry and Behavioral Sciences Department, University of Washington, Seattle, WA, (3)Psychiatry and 414.071 Relationship between Social Impairment and Sensory Behavioral Sciences, University of Washington, Seattle, WA, (4)Center Patterns Assessed with the Italian Sensory Profile 2 in Children with for Child Health, Behavior and Development, Seattle Children’s Research 1 1 2 Autism Spectrum Disorders I. Basadonne , C. Iannaccone , R. Atzei , Institute, Seattle, WA, (5)The Arctic University of Norway, Tromso, 3 1 R. Tancredi and P. Venuti , (1)Department of Psychology and Cognitive NORWAY, (6)Seattle Children’s Research Institute, Seattle, WA Science, University of Trento, Rovereto, Italy, (2)NPM Bambini in Movimento SCS, Firenze, Italy, (3)IRCCS Stella Maris Foundation, Pisa, 414.080 Telehealth Evaluation of Autism Spectrum Disorder during Italy COVID-19: Comparative Outcomes from Implementation of the Tele- ASD-PEDS R. McNally Keehn1, C. James1, Q. Tang2, A. Paxton1 and B. Enneking1, (1)Pediatrics, Indiana University School of Medicine, Indianapolis, IN, (2)Biostatistics, Indiana University School of Medicine, Indianapolis, IN

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414.081 The Feedback Session of an Autism Assessment: A Scoping 414.090 Using Word Embeddings to Detect Autism Based on Review of Clinical Practice Guideline Recommendations E. Pattison1, Language Data from an Assessment of Cognitive Ability N. NNamoko1, A. Ure2, S. Mittiga1, G. Werninghaus3, K. Williams4 and N. C. Freeman1, Y. Korkontzelos2 and T. Karaminis3, (1)Department of Computer (1)Faculty of Education, Monash University, Monash University, VIC, Science, Edge Hill University, Ormskirk, United Kingdom, (2) Australia, (2)Department of Paediatrics, Monash University, Clayton, VIC, Deapartment of Computer Science, Edge Hill University, Ormskirk, Australia, (3)Australian Catholic University, Melbourne, VIC, Australia, (4) United Kingdom, (3)Department of Psychology, Edge Hill University, Department of Paediatrics, Monash University, Melbourne, VIC, Australia Ormskirk, United Kingdom

414.082 The Impact of Demographic Variables and Comorbidities 414.091 Using the Big Data Approach to Clarify the Structure of on the Timing of ASD Diagnosis and Access to Services: Data from a Restricted Repetitive Behaviors across the Most Commonly Used Autism Large National Survey J. E. Goldblum1, O. Putnam2 and C. Harrop2, Spectrum Disorder Measures M. Uljarevic1, B. Jo2, T. W. Frazier3, L. (1)Department of Psychology and Neuroscience, University of North Scahill4, E. Youngstrom5 and A. Y. Hardan6, (1)Department of Psychiatry Carolina at Chapel Hill, Chapel Hill, NC, (2)Department of Allied Health and Behavioral Sciences, School of Medicine, Stanford University, Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC Stanford, CA, (2)Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, Stanford, CA, (3)Psychology, John 414.083 The Impact of Diagnosis Scale – Revised (IODS-R) S. Carrol University, Cleveland, OH, (4)Marcus Autism Center, Atlanta, 1,2 1,2 1,2 3 2,4 Arnold , Y. Huang , J. Higgins , J. Hwang , A. L. Richdale , J. N. GA, (5)University of North Carolina at Chapel Hill, Chapel Hill, NC, (6) 1,2 2,4 Trollor and L. P. Lawson , (1)Department of Developmental Disability Psychiatry & Behavioral Sciences, Stanford University, Stanford, CA Neuropsychiatry, UNSW, Sydney, NSW, Australia, (2)Cooperative Research Centre for Living with Autism (Autism CRC), Brisbane, QLD, 414.092 Using the Brief Observation of Social Communication Australia, (3)University of New South Wales, Sydney, NSW, Australia, (4) Change (BOSCC) to Measure Changes in Social Communication of Olga Tennison Autism Research Centre, La Trobe University, Melbourne, Minimally Verbal Children C. K. Toolan1, A. Holbrook1, S. Freeman2, T. VIC, Australia Paparella3 and C. Lord1, (1)University of California, Los Angeles, Los Angeles, CA, (2)Child Psychiatry, UCLA Medical Center, Los Angeles, 414.084 Toward Earlier Screening for ASD: A New Factor Structure CA, (3)University of California Los Angeles, Los Angeles, CA of the First Years Inventory (FYIv3.1) G. T. Baranek1, J. Sideris2, Y. J. Chen1, E. Crais3 and L. R. Watson3, (1)Chan Division of Occupational 414.093 Utility of Electronic Measures of Cognition in the Age of Science and Occupational Therapy, University of Southern California, COVID-19 B. Britvan1, T. Levy1, H. Grosman1, I. Giserman-Kiss2, J. Los Angeles, CA, (2)Frank Porter Graham Child Development Institute, Zweifach3, D. Halpern3, M. P. Trelles3, A. Kolevzon3, S. Bishop4, J. D. Chapel Hill, NC, (3)Department of Allied Health Sciences, University of Buxbaum5 and P. M. Siper3, (1)Seaver Autism Center, Department of North Carolina at Chapel Hill, Chapel Hill, NC Psychiatry, Icahn School of Medicine at Mount Sinai Hospital, New York, NY, (2)Neurodevelopmental and Behavioral Phenotyping Service, 414.086 Unveiling Autism in Girls: Efficacy of Girls’ Questionnaire for National Institutes of Mental Health, Bethesda, MD, (3)Seaver Autism Autism Spectrum Conditions (GQ-ASC) As a Screening Tool for Five to Center for Research and Treatment, Department of Psychiatry, Icahn Twelve-Year-Old Girls in Malta. M. Mifsud, TAASC, Birkirkara, Malta School of Medicine at Mount Sinai Hospital, New York, NY, (4)University of California San Francisco, San Francisco, CA, (5)Department of 414.087 Use of Child Behavior Checklist in Toddlers with Autism Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY L. Y. Zhao1, F. F. Wang1, X. Li2, J. Liu2 and G. Q. Han1, (1)Peking University Sixth Hospital, Beijing, China, (2)Peking University Sixth 414.094 Utility of the Modified Anxiety Dimensional Observation Hospital, National Clinical Research Center for Mental Disorders, Beijing, Scale (M-Anx-DOS) in Preschoolers with Autism Spectrum Disorder China A. L. Hogan1, K. D. Smith1, N. Mian2, C. J. Black1, C. E. Knott3, C. G. Moser4, K. Hills5, A. Fairchild1, A. S. Carter6 and J. Roberts1, (1) 414.088 Using M-CHAT to Screen for Autistic Spectrum Disorder in Department of Psychology, University of South Carolina, Columbia, Toddlers from Ethnic Minorities in Israel: Experiences and Perspectives SC, (2)University of New Hampshire, Manchester, NH, (3)Psychology, of Public Health Nurses O. Kerub1, I. Menashe2, G. Meiri3, N. University of South Carolina, Columbia, SC, (4)Communication Sciences Davidovitch4 and E. J. Haas5, (1)Ben-Gurion University, Ministry of & Disorders, University of South Carolina, Columbia, SC, (5)University of Health, Be’er Sheva,, Israel, (2)National Autism Research Center, Beer South Carolina, Columbia, SC, (6)Department of Psychology, University Sheva, Israel, (3)Preschool Psychiatric Unit, Soroka University Medical of Massachusetts Boston, Boston, MA Center, Beer Sheva, Israel, (4)Ben-Gurion University in the Negev, Ministry of health, Be’er Sheva,, Israel, (5)Ministry of Health, Beer Sheva, 414.095 Utilizing the CBCL As an ASD Screener and Outcome Israel Measure for a Social Skill Intervention in Autistic Adolescents M. M. Rea1, E. J. Adler2, A. Arias3, A. D. Haendel4 and A. V. Van Hecke2, (1) 414.089 Using Machine Learning to Enhance Autism Screening with Department of Psychology, Marquette University, Milwaukee, WI, (2) the Social Communication Questionnaire: A Cross-Cultural Approach Psychology, Marquette University, Milwaukee, WI, (3)University of B. Mitchell1, Y. Korkontzelos2 and T. Karaminis3, (1)Department of California,, Milwaukee, WI, (4)Speech-Language Pathology, Concordia Computer Science, Birmingham, United Kingdom, (2)Deapartment of University Wisconsin, Mequon, WI Computer Science, Edge Hill University, Ormskirk, United Kingdom, (3)Department of Psychology, Edge Hill University, Ormskirk, United 414.096 Validating an Adaptive Age Equivalent and Adaptive Kingdom Developmental Quotient Using the National Database for Autism Research (NDAR) L. Hamrick1, B. Kelleher1, T. Halligan2, W. S. Neo1, T. F. Protho1 and N. Witthuhn3, (1)Psychological Sciences, Purdue University, West Lafayette, IN, (2)Child Study Center, Yale University School of Medicine, New Haven, CT, (3)University of Oregon, Eugene, OR

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414.098 Validation of the Autism Detection in Early Childhood- 414.107 • Validation of a New Digital Tool, the Pirates Autism Japanese (ADEC-J) H. Kawashima1, C. Dissanayake1, D. Hedley1, E. Assessment App, to Aid Screening of Primary School Children Referred Kezuka2 and M. Okuno3, (1)Olga Tennison Autism Research Centre, with Possible Autism for Formal Diagnostic Assessment W. Farr1 and La Trobe University, Melbourne, VIC, Australia, (2)Gunma Prefectural I. Male2, (1)Sussex Community NHS Trust, Haywards Heath, United Women’s University, Gunma, Japan, (3)Gunma University of Health and Kingdom, (2)Mid Sussex Child Develoment Team, Sussex Community Welfare, Gunma, Japan NHS Trust, Haywards Heath, United Kingdom

414.099 Validation of the Autism Diagnostic Observation Schedule with Open-Access Data H. Baker-Harvey1, S. Schwartz2 and H. Tager- Flusberg3, (1)Boston University, Boston, MA, (2)Graduate Program Poster Session for Neuroscience, Boston University, Boston, MA, (3)Department of Poster 415 - Early Development (< 48 months) Psychological and Brain Sciences, Boston University, Boston, MA 415.001 A Prospective Study of Anxiety and Perceptual Sensitivity 414.100 Validity of the Boscc across Settings and Interaction As Early Markers for Restricted and Repetitive Behaviors in Infants Partners J. Kitzerow, C. Lemler, S. Kleber, Z. Kim, K. Teufel with Typical and Elevated Likelihood of Autism Spectrum Disorder. and C. M. Freitag, Autism Research and Intervention Center of N. Narvekar1, V. Carter Leno2, G. Pasco3, M. Johnson4, E. J. Jones5 Excellence Frankfurt, Department of Child and Adolescent Psychiatry, and T. Charman6, (1)IoPPN, King’s College London, London, United Psychosomatics and Psychotherapy, University Hospital Frankfurt, Kingdom, (2)King’s College London, Institute of Psychiatry, Psychology Goethe University, Frankfurt, Germany and Neuroscience, London, United Kingdom, (3)Institute of Psychiatry, 414.101 Variability and Change in Autism Symptom Severity Psychology and Neuroscience, King’s College London, London, United Trajectories across Childhood E. Waizbard-Bartov1, E. Ferrer1, B. Kingdom, (4)Department of Psychology, University of Cambridge, Heath2, S. J. Rogers2, C. W. Nordahl2, M. Solomon2 and D. G. Amaral2, Cambridge, United Kingdom, (5)Centre for Brain and Cognitive (1)UC Davis, Davis, CA, (2)Department of Psychiatry and Behavioral Development, Birkbeck, University of London, London, United Kingdom, Sciences, The Medical Investigation of Neurodevelopmental Disorders (6)Department of Psychology, Institute of Psychiatry, Psychology and (MIND) Institute, UC Davis School of Medicine, University of California Neuroscience, King’s College London, London, United Kingdom Davis, Sacramento, CA 415.002 ASD-Related Characteristics in Infancy in Relation to 1,2 1,2 414.102 Verification of New Screening Tools for Neurodevelopmental Autonomic Functioning S. Soker-Elimaliah and J. B. Wagner , (1)The Disorders in 5-Year-Old Children, Including the Use of Web Systems A. Graduate Center, City University of New York, New York, NY, (2)College Terui1, M. Saito1, M. Adachi2, Y. Sakamoto1, A. Osato3, T. Mikami3 and of Staten Island, City University of New York, Staten Island, NY K. Nakamura1,3, (1)Department of Neuropsychiatry, Graduate School of 415.003 Associations between Child Sensory Reactivity Patterns and Medicine, Hirosaki University, Hirosaki, Japan, (2)Department of Clinical Caregiver Responsiveness E. Campi1, J. Sideris1, A. McConnell Hatch1, Psychological Science, Hirosaki University, Hirosaki, Japan, (3)Research A. Masuda1, E. Crais2, L. R. Watson2 and G. T. Baranek1, (1)Chan Center for Child Mental Development, Graduate School of Medicine, Division of Occupational Science and Occupational Therapy, University Hirosaki University, Hirosaki, Japan of Southern California, Los Angeles, CA, (2)Department of Allied Health 414.103 Virtual Diagnostic Evaluation of Young Children for Autism Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC Spectrum Disorder: The Observation of Play Screener: Home Edition R. 415.004 Associations of Brain Injury and Race on Autism Diagnosis E. Nickel, OHSU, Eugene, OR and Severity L. Nichols1, A. T. Wieckowski2, J. Zavadak3, G. Vivanti2, 4 5 2 414.104 Visual and Tactile Sensory Experiences of Children with L. B. Adamson , D. A. Fein and D. L. Robins , (1)A.J. Drexel Autism ASD: Voices of Those with Autism from Their Autobiographiesgrant No. Institute, Philadelphia, PA, (2)A.J. Drexel Autism Institute, Drexel T73MC29073 from the Health Resources and Services Administration. University, Philadelphia, PA, (3)Drexel University School of Medicine, P. Towle1 and N. Turygin2, (1)Westchester Institute for Human Philadelphia, PA, (4)Psychology, Georgia State University, Atlanta, GA, Development, Valhalla, NY, (2)Behavioral Psychology, Westchester (5)Psychological Sciences, University of Connecticut, Storrs, CT Institute for Human Development, Valhalla, NY 415.005 Behavioural Reactions to a Task Intended to Elicit Fear 1 414.105 What’s behind the Mask? Evaluating Methods of Measuring in Infants at High Risk for Autism Spectrum Disorder M. Susko , V. 2 3 1 4 5 Camouflaging B. Hannon1, L. Hull2 and W. Mandy2, (1)Cambridgeshire & L. Armstrong , J. A. Brian , S. E. Bryson , A. Kushki , L. A. Sacrey , 6 7 Peterborough Foundation NHS Trust, Peterborough, United Kingdom, (2) L. Zwaigenbaum and I. M. Smith , (1)Dalhousie University, Halifax, University College London, London, United Kingdom of Great Britain and NS, Canada, (2)IWK Health Centre, Halifax, NS, Canada, (3)Holland Northern Ireland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada, (4) Bloorview Research Institute, Toronto, ON, Canada, (5)Autism Research 414.106 Youth at Low Risk for Receipt of an ASD Diagnosis: Centre, Glenrose Rehabilitation Hospital, Edmonton, AB, CANADA, (6) Identification of Predictor Variables to Improve Screening and Triage University of Alberta, Edmonton, AB, Canada, (7)Dalhousie University / X. D. Hu1 and K. Nowell2, (1)University of Missouri, Columbia, MO, IWK Health Centre, Halifax, NS, CANADA (2)Thompson Center for Autism & Neurodevelopmental Disorders, Columbia, MO 415.006 Brainstem Integrity Dissociated with Linguistic Competence in Young Children with Autism L. Yu1,2, A. Yi3, B. Lai1,2, J. Zhang1,2, N. Li1,2, L. Ban1,2, J. Xin3 and S. Li3, (1)School of Psychology, South China Normal University, Guangzhou, China, (2)Autism Research Center, South China Normal University, Guangzhou, China, (3)Department of Children Rehabilitation, Foshan Chancheng Central Hospital, Foshan, China

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415.007 Caregivers Training Groups: Viable Alternative for Public 415.015 Early Temperament Profiles in Infants at High Risk for ASD Health in Brazil? M. L. Nogueira1, M. L. Carvalho1, L. B. J. Souza1, V. C. and ADHD G. Kadlaskar1, S. Ozonoff2 and M. Miller3, (1)Department Schneider1, K. F. Vieira1 and A. Hatem Pereira2, (1)Universidade Federal of Psychiatry & Behavioral Sciences, University of California, Davis, de Minas Gerais, Belo Horizonte, Brazil, (2)FHEMIG, Belo Horizonte, MIND Institute, Sacramento, CA, (2)Psychiatry and Behavioral Sciences, Brazil University of California at Davis, MIND Institute, Sacramento, CA, (3) Psychiatry and Behavioral Sciences, University of California, Davis, 415.008 Developmental Profiles and Associated Rates of ASD in MIND Institute, Sacramento, CA Early Intervention: A Confirmatory Latent Profile Analysis M. Troxel1, R. C. Sheldrick2, A. Eisenhower3 and A. S. Carter1, (1)Department 415.016 Effects of Mechanism of Genetic Transmission of Autism on of Psychology, University of Massachusetts Boston, Boston, MA, (2) Clinical Characteristics of Infants and Toddlers with Emerging Autism Boston University School of Public Health, Boston, MA, (3)University of Symptoms T. Cohenour1, A. Gulsrud2 and C. Kasari1, (1)University of Massachusetts Boston, Boston, MA California, Los Angeles, Los Angeles, CA, (2)UCLA Semel Institute for Neuroscience & Human Behavior, Los Angeles, CA 415.009 Differences in Temperament during Early Childhood in Children at Familial Risk for Autism with Low Versus High Parent 415.017 Emotional Availability in Mother-Child and Father-Child Reported Autism, ADHD and Anxiety Symptoms T. Bazelmans1, R. Dyads A. Bentenuto1, S. Perzolli1, G. Bertamini1, C. Zaupa2, N. Mazzoni2 Arthur2, M. H. Johnson3, E. J. Jones3, T. Charman4 and &. The BASIS and P. Venuti1, (1)Department of Psychology and Cognitive Science, Team5, (1)King’s College London, Institute of Psychiatry, Psychology University of Trento, Rovereto, Italy, (2)University of trento, Trento, Italy and Neuroscience, London, United Kingdom, (2)Kings College London, London, United Kingdom, (3)Centre for Brain and Cognitive 415.018 Examining Profiles of Mental Health Symptoms and Development, Birkbeck, University of London, London, United Kingdom, Neurodevelopment Among Younger Siblings of Youth with Autism 1 2 3 4 (4)Department of Psychology, Institute of Psychiatry, Psychology and Spectrum Disorder A. Budavari , R. Musci , S. Ozonoff , R. Landa , L. 5 6 7 8 9 Neuroscience, King’s College London, London, United Kingdom, (5) A. Croen , M. D. Fallin , I. Hertz-Picciotto , K. Lyall , C. J. Newschaffer , 10 11 Institute of Psychiatry, Psychology and Neuroscience, King’s College R. J. Schmidt and H. E. Volk , (1)Department of Mental Health, Johns London, London, United Kingdom Hopkins Bloomberg School of Public Health, Baltimore, MD, (2)Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, 415.010 Distinguishing Symptoms of ASD from Global Developmental MD, (3)Psychiatry and Behavioral Sciences, University of California Delay on Screening and Diagnostic Instruments R. P. Thomas1, S. at Davis, MIND Institute, Sacramento, CA, (4)Center for Autism and Milan1, L. R. Naigles1, D. L. Robins2, M. Barton1, L. B. Adamson3 and D. Related Disorders, Kennedy Krieger Institute, Baltimore, MD, (5)Division A. Fein1, (1)Psychological Sciences, University of Connecticut, Storrs, of Research, Kaiser Permanente, Oakland, CA, (6)Bloomberg School of CT, (2)A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA, Public Health, Johns Hopkins University, Baltimore, MD, (7)University (3)Psychology, Georgia State University, Atlanta, GA of California at Davis, Davis, CA, (8)A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA, (9)College of Health and Human 415.011 Early Development of Emotional Self-Regulation: Differences Development, Pennsylvania State University, University Park, PA, (10) in Behavioural Dynamics at 9-Months Due to Premature Birth in a Public Health Sciences, University of California Davis, Davis, CA, (11) 1 2 2 Longitudinal Birth Cohort Y. W. Chua , L. Ginnell , V. Ledsham , C. Wendy Klag Center for Autism and Developmental Disabilities, Johns 3 3 4 5 6 Tachtatzis , I. Andonovic , J. Boardman , P. Rowe , S. Fletcher-Watson Hopkins Bloomberg School of Public Health, Baltimore, MD and J. Delafield-Butt7, (1)Faculty of Humanities and Social Sciences, Laboratory for Innovation in Autism, University of Strathclyde, Glasgow, 415.019 Examining the Relationship between Parent-Child United Kingdom, (2)University of Edinburgh, Edinburgh, United Kingdom, Interactions and Social Communication Skill Acquisition in Early (3)Department of Electronic and Electrical Engineering, University of Intervention Settings M. M. Chemotti1,2, J. A. Ko2, K. S. Dickson1, S. R. Strathclyde, Glasgow, United Kingdom, (4)MRC Centre for Reproductive Rieth2 and A. C. Stahmer3, (1)Child and Adolescent Services Research Health, University of Edinburgh, Edinburgh, United Kingdom, (5) Center, San Diego, CA, (2)San Diego State University, San Diego, CA, Department of Biomedical Engineering, University of Strathclyde, (3)UC Davis MIND Institute, University of California, Davis, Sacramento, Glasgow, United Kingdom, (6)Salvesen Mindroom Research Centre, CA University of Edinburgh, Edinburgh, United Kingdom, (7)Laboratory for Innovation in Autism, University of Strathclyde, Glasgow, United Kingdom 415.020 Exploring Face Inversion Effects and Attentional Biases in Infants at High Risk for ASD C. Brittenham1, J. B. Wagner2,3, H. Tager- 415.013 Early Patterns of Social Visual Engagement in Preterm and Flusberg4 and C. A. Nelson5, (1)The Graduate Center, City University of Full-Term Toddlers with Autism Spectrum Disorder E. McQueen, H. New York, New York, NY, (2)College of Staten Island, City University of Tokish, A. Rudrabhatla, L. A. Edwards, H. Walum, W. Jones, A. Klin and New York, Staten Island, NY, (3)The Graduate Center, City University C. Klaiman, Marcus Autism Center, Children’s Healthcare of Atlanta and of New York, New York, NY, (4)Department of Psychological and Brain Emory University School of Medicine, Atlanta, GA Sciences, Boston University, Boston, MA, (5)Developmental Medicine, Boston Children’s Hospital, Boston, MA 415.014 Early Sleep Differences in Young Infants with Autism Spectrum Disorder M. Foster1, A. Federico1, C. Klaiman2, A. Klin2 and 415.021 Factors Associated with Toileting Resistance in Preschool- J. Bradshaw1, (1)University of South Carolina, Columbia, SC, (2)Marcus Aged Children with Autism Spectrum Disorder and Other Developmental Autism Center, Children’s Healthcare of Atlanta and Emory University Delays/Disabilities L. Wiggins1, S. Hepburn2, C. Nadler3, A. M. School of Medicine, Atlanta, GA Reynolds4, S. Rosenberg5 and J. Zubler6, (1)Centers for Disease Control and Prevention, Atlanta, GA, (2)Colorado State University, Fort Collins, CO, (3)Children’s Mercy Kansas City, Kansas City, MO, (4)University of Colorado School of Medicine, Aurora, CO, (5)University of Colorado Anschutz Medical Campus, Aurora, CO, (6)Eagle Global Scientific, Atlanta, GA

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415.022 Gross Motor Development and Its Relation to Language 415.027 Language Abilities in Children with Autism and Language Skills in Infants at Low and High Familial or Screen Risk for ASD D. Development in the First Two Years of Life in Their High-Risk Siblings Huaracha1,2, A. B. Choi3, H. Tager-Flusberg4 and C. A. Nelson3, (1) E. Forsen1, K. Donovan2, M. R. Swanson3, S. S. Meera4, K. Botteron5, Harvard College, Cambridge, MA, (2)Boston Children’s Hospital, Boston, S. R. Dager6, A. M. Estes7, H. C. Hazlett8, J. Pandey9, R. T. Schultz9, MA, (3)Developmental Medicine, Boston Children’s Hospital, Boston, MA, T. St. John10, L. Zwaigenbaum11, J. Piven12, J. B. Girault13 and .. The (4)Department of Psychological and Brain Sciences, Boston University, IBIS Network14, (1)University of North Carolina at Chapel Hill, Chapel Boston, MA Hill, NC, (2)Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, (3)The University of Texas at Dallas, Dallas, 415.023 Individual and Parental Factors Affecting Behavior and TX, (4)National Institute of Mental Health and Neurosciences, Bangalore, Emotional Problems of Italian Toddlers with Low-Functioning Autism India, (5)Washington University School of Medicine, St. Louis, MO, 1 2 1 Spectrum Disorder A. Bacherini , R. Igliozzi , G. Rebecchini , R. (6)Radiology, University of Washington, Seattle, WA, (7)Speech and 2 2 2 3 1 Cagiano , A. Mancini , R. Tancredi , F. Muratori and G. Balboni , (1) Hearing Sciences, University of Washington, Seattle, WA, (8)*co-senior Department of Philosophy, Social and Human Sciences and Education, author, University of North Carolina, Chapel Hill, NC, (9)Center for University of Perugia, Perugia, Italy, (2)IRCCS Stella Maris Foundation, Autism Research, Children’s Hospital of Philadelphia, Philadelphia, PA, Pisa, Italy, (3)Department of Clinical and Experimental Medicine, (10)University of Washington, Seattle, WA, (11)University of Alberta, University of Pisa, Pisa, Italy Edmonton, AB, Canada, (12)*Co-senior author, University of North Carolina, Chapel Hill, NC, (13)Carolina Institute for Developmental 415.024 Investigating Associations between Older Siblings’ ASD and Disabilities, University of North Carolina, Chapel Hill, NC, (14)University ADHD Traits and Infant Siblings’ Temperament H. Halkola1, A. Pickles2, of North Carolina, Chapel Hill, NC J. Begum Ali3, A. Gui4, G. Pasco5, M. H. Johnson3, T. Charman6, E. J. 3 5 Jones and &. The BASIS Team , (1)Institute of Psychiatry, Psychology 415.028 Longitudinal Trajectories of Social Visual Engagement and Neuroscience, Department of Psychology, King’s College London, Distinguish between Language Profiles at Two Years in Autism London, United Kingdom, (2)King’s College London, Institute of Spectrum Disorder E. Kushner1, S. Koirala2, D. Parmaksiz3, S. Yuan4, Psychiatry, Psychology and Neuroscience, London, United Kingdom, W. Jones5, S. Shultz5, A. Klin5 and L. A. Edwards5, (1)Emory University, (3)Centre for Brain and Cognitive Development, Birkbeck, University Marcus Autism Center, Atlanta, GA, (2)Department of Pediatrics, Emory of London, London, United Kingdom, (4)Centre for Brain and Cognitive University School of Medicine, Marcus Autism Center, Atlanta, GA, Development, Birkbeck University of London, London, United Kingdom, (3)Marcus Autism Center, Atlanta, GA, (4)Emory University School (5)Institute of Psychiatry, Psychology and Neuroscience, King’s College of Medicine, Marcus Autism Center, Atlanta, GA, (5)Marcus Autism London, London, United Kingdom, (6)Department of Psychology, Institute Center, Children’s Healthcare of Atlanta and Emory University School of of Psychiatry, Psychology and Neuroscience, King’s College London, Medicine, Atlanta, GA London, United Kingdom 415.029 Maternal Depressive Symptom Trajectory and Brain and 415.025 Investigating Attention to Non-Social and Social Stimuli and Behavioral Development in Infants at High and Low Risk for Autism A. Underlying Mechanisms of Language Development in a Prospective B. Choi1,2, C. L. Wilkinson1, G. Sideridis3, H. Tager-Flusberg4 and C. A. 1 2,3 ASD and ADHD Infant-Sibling Study M. A. Agyapong , M. H. Johnson , Nelson1, (1)Developmental Medicine, Boston Children’s Hospital, Boston, 4 2 1,2 T. Charman , E. J. Jones and &. The BASIS-STAARS Team , (1) MA, (2)Harvard Graduate School of Education, Cambridge, MA, (3) Department of Psychology, Institute of Psychiatry, Psychology & Developmental Medicine, Boston Children’s Hospital/Harvard Medical Neuroscience, King’s College London, London, United Kingdom, (2) School, Boston, MA, (4)Department of Psychological and Brain Sciences, Centre for Brain and Cognitive Development, Birkbeck, University Boston University, Boston, MA of London, London, United Kingdom, (3)Department of Psychology, University of Cambridge, Cambridge, United Kingdom, (4)Department of 415.030 Multimodal Pathways into Sustained Attention during Dyadic Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s Toy Play for Children with and without Autism J. R. Yurkovic1, G. College London, London, United Kingdom Lisandrelli1, R. Shaffer2, K. Dominick3, E. Pedapati3, C. A. Erickson3, C. Yu4 and D. P. Kennedy1, (1)Psychological and Brain Sciences, Indiana 415.026 Joint Engagement Experiences Are Associated with University, Bloomington, IN, (2)Division of Developmental and Behavioral Communication Skills and Autism Severity in Toddlers with ASD. A. Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, 1 1 1 2 3 Browngoehl , A. Zitter , A. T. Wieckowski , K. Suma , R. Bakeman , L. OH, (3)Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, (4) 3 1 B. Adamson and D. L. Robins , (1)A.J. Drexel Autism Institute, Drexel Psychology, University of Texas at Austin, Autsin, TX University, Philadelphia, PA, (2)University of Georgia, Athens, GA, (3) Psychology, Georgia State University, Atlanta, GA 415.031 Parental Needs of Children in Early Intervention for Autism Spectrum Disorder in Brazil M. L. Nogueira1, N. W. da Silva2, M. L. Carvalho1 and A. Hatem Pereira3, (1)Universidade Federal de Minas Gerais, Belo Horizonte, Brazil, (2)private, Mariana, Brazil, (3)FHEMIG, Belo Horizonte, Brazil

415.032 Parents of Children with and without Autism Coordinate Object Labeling with Child Behaviors during Dyadic Play J. R. Yurkovic1, G. Lisandrelli1, R. Shaffer2, K. Dominick3, E. Pedapati3, C. A. Erickson3, C. Yu4 and D. P. Kennedy1, (1)Psychological and Brain Sciences, Indiana University, Bloomington, IN, (2)Division of Developmental and Behavioral Pediatrics, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, (3)Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, (4) Cognitive Science Program, Indiana University, Bloomington, IN

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415.033 Quantifying Social Visual Engagement in Preterm Toddlers 415.040 Associations between Socioeconomic Variables and Local with and without Autism Spectrum Disorder H. Tokish, E. McQueen, Cortical Gyrification in Language Regions in Preschoolers with Autism A. Rudrabhatla, C. Klaiman, H. Walum, W. Jones, A. Klin and L. A. Spectrum Disorder L. Olson1,2, B. Chen1,2, I. A. Martindale2, M. C. Edwards, Marcus Autism Center, Children’s Healthcare of Atlanta and Arcadio Arce2, J. S. Kohli1,2, A. C. Linke2, C. Ibarra2, S. R. Peña2, E. Emory University School of Medicine, Atlanta, GA Mendez2, R. A. Müller1,2, R. A. Carper1,2 and I. Fishman1,2,3, (1)Joint Doctoral Program in Clinical Psychology, SDSU/UC San Diego, San 415.034 Screen Time in 18 and 24-Month-Olds at Increased Risk Diego, CA, (2)Brain Development Imaging Laboratories, San Diego 1 2 1 for ASD and ADHD M. M. Hill , A. M. Iosif and M. Miller , (1)Psychiatry State University, San Diego, CA, (3)SDSU Center for Autism and and Behavioral Sciences, University of California, Davis, MIND Institute, Developmental Disorders, San Diego State University, San Diego, CA Sacramento, CA, (2)Public Health Sciences, University of California Davis, Davis, CA

415.035 Sex Differences in the Adaptive Value of Social Visual Poster Session Engagement in Preterm Toddlers with Autism Spectrum Disorder A. Poster 416 - Early phase drug discovery Rudrabhatla, E. McQueen, H. Tokish, C. Klaiman, H. Walum, W. Jones, A. Klin and L. A. Edwards, Marcus Autism Center, Children’s Healthcare 416.001 Low Dose Amitriptyline for Repetitive Behaviors and OCD of Atlanta and Emory University School of Medicine, Atlanta, GA in Autism Spectrum Disorder: Three Illustrative Cases. J. A. Hellings1 2 415.036 Social Visual Engagement Predicts Developmental Stability and Z. Abbass , (1)Psychiatry, University of Missouri Kansas City and of Quantitative Autistic Traits K. Lineback1, N. Marrus2, A. L. Glowinski3, Truman Behavioral Health, Kansas City, MO, (2)Psychiatry, University of A. Klin4, W. Jones4 and J. N. Constantino2, (1)Washington University Missouri- Kansas City, Kansas City, MO School of Medicine in St. Louis, St. Louis, MO, (2)Washington University School of Medicine, St. Louis, MO, (3)Washington University in St. Louis, St. Louis, MO, (4)Marcus Autism Center, Children’s Healthcare of Atlanta Poster Session and Emory University School of Medicine, Atlanta, GA Poster 417 - Education 415.037 The Sensory Assessment for Neurodevelopmental Disorders: Infant and Toddler Version P. M. Siper1, J. Bragg2, C. F. 417.001 A National Portrait of Autism-Specifc College Support Layton3, M. Rowe4, J. Zweifach1 and T. Tavassoli5, (1)Seaver Autism Programs in the United States C. Kepple1, B. E. Cox2 and C. B. Francis1, Center for Research and Treatment, Department of Psychiatry, (1)Florida State University, Tallahassee, FL, (2)Educational Leadership Icahn School of Medicine at Mount Sinai Hospital, New York, NY, (2) and Policy Studies, Florida State University, Tallahassee, FL Neonatology, Mount Sinai Medical Center, New York, NY, (3)Seaver Autism Center, Department of Psychiatry, Icahn School of Medicine at 417.002 A Three-Year Evaluation of Purpose-Built Centres to Promote Inclusion of Autistic Pupils in Mainstream Schools I. Dale1, H. Mount Sinai Hospital, New York, NY, (4)UCSF, San Fransisco, CA, (5) 2 3 4 Centre for Autism, School of Psychology & Clinical Language Sciences, Judge , D. May and A. Jones Bartoli , (1)The National Autistic Society, University of Reading, Reading, United Kingdom Sheffield, United Kingdom, (2)National Autistic Society, London, United Kingdom, (3)National Autistic Society, London, United Kingdom of 415.038 Validity of the Toddler Autism Symptom Inventory (TASI) in Great Britain and Northern Ireland, (4)Goldsmiths, University of London, White and Black/African American Children K. L. Coulter1, M. Moreno1, London, United Kingdom of Great Britain and Northern Ireland M. Barton1, D. L. Robins2 and D. A. Fein1, (1)Psychological Sciences, University of Connecticut, Storrs, CT, (2)A.J. Drexel Autism Institute, 417.003 Autism and Evidence-Based Practices: Surveying Educators’ Drexel University, Philadelphia, PA Knowledge, Training and Use P. LaCava, Rhode Island College, Providence, RI 415.039 White Matter Microstructure and Language Abilities in 1 417.004 Autistic Traits and Risk Factors for Academic Performance: Infants at High Familial Risk for Autism Spectrum Disorder G. Cetin , 1 2 2 2,3 4 5 6 7 The Trails Study A. K. Smit , P. J. Hoekstra , A. de Bildt and C. A. M. Swanson , S. S. Meera , J. J. Wolff , K. Botteron , S. R. Dager , A. 3 M. Estes8, G. Gerig9, R. C. McKinstry10, J. Pandey11, R. T. Schultz11, T. Hartman , (1)Accare Child and Adolescent Psychiatry or University St. John12, M. Styner13, L. Zwaigenbaum14, J. Piven15, H. C. Hazlett16, of Groningen, Groningen, Netherlands, (2)Department of Child and J. B. Girault17 and .. The IBIS Network2, (1)University of North Carolina Adolescent Psychiatry, University Medical Center Groningen, University at Chapel Hill, Chapel Hill, NC, (2)University of North Carolina, Chapel of Groningen, Groningen, Netherlands, (3)Department of Psychiatry, Hill, NC, (3)University of Texas at Dallas, Richardson, TX, (4)National Interdisciplinary Center Psychopathology and Emotion Regulation Institute of Mental Health and Neurosciences, Bangalore, India, (5) (ICPE), University Medical Center Groningen, Groningen, Netherlands University of Minnesota, Minneapolis, MN, (6)Washington University 417.005 Board Certified Behavior Analysts’ Experiences Teaching School of Medicine, St. Louis, MO, (7)Radiology, University of Sex Education S. L. Curtiss and M. Stoffers, University of Delaware, Washington, Seattle, WA, (8)Speech and Hearing Sciences, University Newark, DE of Washington, Seattle, WA, (9)New York University, New York, NY, (10)Mallinckrodt Institute of Radiology, Washington University School 417.006 Compass for Optimizing Educational Outcomes and of Medicine, St. Louis, MO, (11)Center for Autism Research, Children’s Supporting Parent-Teacher Alliance L. A. Ruble1 and J. H. McGrew2, Hospital of Philadelphia, Philadelphia, PA, (12)University of Washington, (1)Special Education, Ball State University, Muncie, IN, (2)Psychology, Seattle, WA, (13)Psychiatry and Computer Science, University of North Indiana University - Purdue University Indianapolis, Indianapolis, IN Carolina, Chapel Hill, NC, (14)University of Alberta, Edmonton, AB, Canada, (15)*Co-senior author, University of North Carolina, Chapel Hill, NC, (16)*co-senior author, University of North Carolina, Chapel Hill, NC, (17)Carolina Institute for Developmental Disabilities, University of North Carolina, Chapel Hill, NC 98 • INSAR 2021 VIRTUAL ANNUAL MEETING • EPOSTERS ON-DEMAND ACCESS WITH ONLINE Q&A

417.007 Conducting Standardized Assessments over a Technology 417.016 How Did the Transition to Online Instruction Impact Platform for Children with ASD C. Conner1, E. J. Solari2, A. R. Henry3 Neurodivergent Youth? It’s Developmental, My Dear Watson A. Riccio1, and M. C. Zajic4, (1)University of Virginia, Charlottesville, VA, (2) J. Herrell2, E. Grossman3, A. Hurst4, B. Rosenberg2,5, C. Ulerio2 and K. Curriculum, Instruction, and Special Education, Curry School of Gillespie-Lynch6, (1)Department of Psychology, The Graduate Center, Education University of Virginia, Charlottesville, VA, (3)University of City University of New York (CUNY), New York, NY, (2)Tech Kids California at Davis, Davis, CA, (4)University of California at Davis MIND Unlimited, Brooklyn, NY, (3)Psychology, The Graduate Center, CUNY, Institute, Davis, CA New York, NY, (4)New York University, New York, NY, (5)Technology, Culture, Society, New York University Tandon School of Engineering, 417.008 Cultural Influence on Parents-Teachers Collaboration Brooklyn, NY, (6)Department of Psychology, College of Staten Island; Towards Educating Children with ASD in Nigeria and South Africa during CUNY Graduate Center, Brooklyn, NY Crises O. A. Kehinde1, O. J. Lindly2, B. Ntombela3 and C. Hermann4, (1) English, University of Zululand, KwaDlangezwa, South Africa, (2)Health 417.017 Jasper in the Classroom: Supporting Peer Engagement for Sciences, Northern Arizona University, Flagstaff, AZ, (3)Department of Preschool Students with Autism Spectrum Disorder J. Panganiban1 and English, University of Zululand, KwaDlangezwa, 3886, South Africa, (4) C. Kasari2, (1)Semel Institute, University of California Los Angeles, Los Psychology, University of Zululand, KwaDlangezwa, 3886, South Africa Angeles, CA, (2)University of California, Los Angeles, Los Angeles, CA

417.010 Educational and Diagnostic Classification of Autism 417.018 Learning about Neurodiversity at School: Key Concepts Spectrum Disorder and Associated Characteristics N. Buranova1, for Communicating Neurodiversity to Primary School Children, from J. Stichter2, M. Stormont3, M. Herzog2 and R. M. O’Donnell4, (1) the Leans Project Co-Design Process A. M. Alcorn1, S. McGeown2, D. Special Education, University of Missouri, Columbia, MO, (2)University Aitken3, W. Mandy4, F. Murray5 and S. Fletcher-Watson1, (1)Salvesen of Missouri, Columbia, MO, (3)University of Missouri, Columbia, Mindroom Research Centre, University of Edinburgh, Edinburgh, United Columbia, MO, (4)Health Psychology, Thompson Center for Autism & Kingdom, (2)Institute for Education, Community and Society, University Neurodevelopmental Disorders, Columbia, MO of Edinburgh, Edinburgh, United Kingdom, (3)Salvesen Mindroom Centre, Edinburgh, United Kingdom, (4)University College London, 417.011 Estimating the Prevalence of Autism Among Postsecondary London, United Kingdom of Great Britain and Northern Ireland, (5)Autistic 1 2 2 Students in the United States B. E. Cox , C. B. Francis and C. Kepple , Mutual Aid Society Edinburgh (AMASE), Edinburgh, United Kingdom (1)Educational Leadership and Policy Studies, Florida State University, Tallahassee, FL, (2)Florida State University, Tallahassee, FL 417.019 Loneliness in Relation to Age and Peer Engagement in Children and Adolescents with Autism Spectrum Disorder M. Dean1, 417.012 Examining Ethnicity As a Moderator of the Relation W. I. Shih2, C. Kasari2 and F. Orlich3, (1)Education, California State between Pre-Parent Factors and Actual/Perceived Knowledge of ASD University, Channel Islands, Camarillo, CA, (2)University of California, 1 1 2 S. C. Boland , R. A. Lindsey and T. D. Barry , (1)Washington State Los Angeles, Los Angeles, CA, (3)Seattle Children’s Hospital, Seattle, University, Pullman, WA, (2)Psychology, Washington State University, WA Pullman, WA 417.020 Measurements of Spontaneous Communication Initiations 417.013 Examining Restricted Repetitive Behaviours and Interests As in Children with Autism in Preschool to Third Grade Classrooms S. L. 1 Predictors of Math Ability Among Students with Autism L. Trafford , K. Birkeneder1 and N. Sparapani2, (1)School of Education, University of 1 2 3 1 1 Howard , E. Gaudet , R. Del Colle , C. Labonté and H. M. Brown , (1) California, Davis, Davis, CA, (2)UC Davis MIND Institute, University of Educational Psychology, University of Alberta, Edmonton, AB, Canada, California, Davis, Sacramento, CA (2)Educational Psychology, University of Alberta, Edmonton, AB, CANADA, (3)University of Alberta, Edmonton, AB, Canada 417.021 Outcomes of High-Quality Training on Teacher Implementation of Ebps for ASD M. Melgarejo1, A. Nahmias2, T. 417.014 Factors Predictive of High School Diploma Assigned to Holt1, J. Suhrheinrich1, P. Schetter3 and A. C. Stahmer4, (1)San Diego 1 High School Students with Autism Spectrum Disorder D. Kan , L. State University, San Diego, CA, (2)Stony Brook University School of 2 3 F. Rentschler and K. Hume , (1)School of Education, University of Medicine, Stony Brook, NY, (3)UC Davis, Sacramento, CA, (4)UC Davis North Carolina at Chapel Hill, Chapel Hill, NC, (2)School of Education, MIND Institute, University of California, Davis, Sacramento, CA University of North Carolina - Chapel Hill, Chapel Hill, NC, (3)Frank Porter Graham Child Development Institute, University of North Carolina 417.022 Person-Centered IEP Transition Planning for Students with at Chapel Hill, Chapel Hill, NC Autism Spectrum Disorders: What Are We Still Missing? C. E. Lee1 and J. G. Kim2, (1)Vanderbilt University Medical Center, Nashville, TN, (2) 417.015 From a “Disorder” to “a Way of Being”: The Effects Georgia Institute of Technology, Atlanta, GA of an Online Training on Pre-Service Teachers’ Stigma and Their Understanding of Emotional and Empathic Capacities of Autistic 417.023 Racial/Ethnic Disproportionality of Autism in Special Students J. MacCormack, University of Lethbridge, Lethbridge, AB, Education in California P. Luelmo, Special Education, San Diego State Canada University, San Diego, CA

417.025 Reviewing the Evidence for Using Video-Based Intervention to Teach Employable Skills to Transition-Age Students with ASD B. B. Chen and G. Yakubova, University of Maryland, College Park, MD

417.026 Specialized Training in Autism Spectrum Disorder: Characteristics of Law Enforcement Officers Who Seek Training to De-Escalate Emergency Situations L. Gardner1 and J. M. Campbell2, (1) Johns Hopkins All Children’s Hospital, St. Petersburg, FL, (2)Psychology, Western Carolina University, Cullowhee, NC

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417.027 Supporting Autistic Adults in Postsecondary Settings: 417.038 Varying Perspectives: Teachers & Parents on the Planning A Systematic Review of Peer Mentorship Programs R. M. Besney1, for School Transitions F. A. Castellon1, N. Libster1, M. Tafolla Magana1, K. Duerksen2, M. Ames2 and C. McMorris3, (1)Werklund School of J. Yang2 and S. Seese1, (1)University of California, Los Angeles, Los Education, University of Calgary, Calgary, AB, Canada, (2)Department of Angeles, CA, (2)Department of Psychiatry and Biobehavioral Sciences, Psychology, University of Victoria, Victoria, BC, Canada, (3)Department UCLA, Los Angeles, CA of Paediatrics, University of Calgary, Calgary, AB, Canada 417.039 What Do Teachers Know about Sex Differences in Autism? 417.028 Teacher Experiences of Implementing Ideas Maker Program, Survey Study on Recognition of Autism in Girls E. F. Hemingway1, D. M. a Research-Based Inclusive STEM Curriculum in Public Middle Schools Riby2 and M. Hanley3, (1)Psychology Dept, Durham University, Durham, K. Murthi1, Y. L. Chen1, K. P. Koenig1, W. Martin2, R. Vidiksis3 and A. United Kingdom, (2)Department of Psychology, Durham University, Riccio4, (1)Occupational Therapy, New York University, New York, NY, Durham, United Kingdom, (3)South Road, Durham University, Durham, (2)Education Development Center, New York, NY, (3)EDC, New York, United Kingdom of Great Britain and Northern Ireland NY, (4)Department of Psychology, The Graduate Center, City University of New York (CUNY), New York, NY 417.040 Written Language Adapted Tele-Assessment Practices during COVID-19: Successes and Challenges with Elementary-Age 417.029 Teacher-Student Interactions within Mathematics Children with Autism Spectrum Disorder M. C. Zajic1, A. R. Henry2, Instructional Contexts in Classrooms Serving Students with Autism C. Conner2 and E. J. Solari3, (1)Health & Behavior Studies, Teachers N. Sparapani1, N. S. Tseng2, S. L. Birkeneder3, T. S. Wood4, A. D. College, Columbia University, New York, NY, (2)University of Virginia, Nunnally1, L. Towers3, J. Vega Garcia3 and C. Alexander5, (1)UC Davis Charlottesville, VA, (3)Curriculum, Instruction, and Special Education, MIND Institute, University of California, Davis, Sacramento, CA, (2) Curry School of Education University of Virginia, Charlottesville, VA Teacher Education, University of California, Davis, CA, (3)School of Education, University of California, Davis, Davis, CA, (4)School of Education, University of California, Irvine, Irvine, CA, (5)University of Poster Session California, Davis, Davis, CA Poster 418 - Emotion 417.030 Teaching Online during a Pandemic: Special Educators’ Experiences Working with Parents R. K. Schuck and R. Lambert, 418.001 A Positive Youth Development Framework to Understand Gevirtz Graduate School of Education, University of California, Santa Positive Mental Health in Autistic Youth T. Sellitto and J. A. Weiss, Barbara, Santa Barbara, CA Psychology, York University, Toronto, ON, Canada

417.031 Teaching Students on the Autism Spectrum: Joys and Trials 418.002 Adaptive Behavior and Emotion Dysregulation Profiles in C. M. Anderson, C. I. Wood, L. N. Franklin and A. O. Iampieri, Health Young Children with Autism Spectrum Disorder K. L. Carpenter1, N. O. Sciences, Towson University, Towson, MD Davis2, M. Spanos1, M. Sabatos-DeVito3, R. E. Aiello1, G. T. Baranek4, S. Compton1, H. L. Egger5, L. Franz6, S. J. Kim7, B. King8, A. Kolevzon9, 417.032 The Academic Learning Experiences of Autistic University C. J. McDougle10, K. Sanders11, J. Veenstra-VanderWeele12, L. Sikich1, Students: Challenges with Alexithymia, Cognitive Flexibility, Social S. H. Kollins2 and G. Dawson1, (1)Department of Psychiatry and Satisfaction and Mental Health B. J. Scott, J. J. Millington and S. Anns, Behavioral Sciences, Duke Center for Autism and Brain Development, University of Sussex, Brighton, United Kingdom Durham, NC, (2)Department of Psychiatry and Behavioral Sciences, 417.033 The Experiences, Practices, and Needs of General Duke ADHD Program, Duke University Medical Center, Durham, NC, Education Teachers Including Autistic Students in High-Poverty Schools (3)Psychiatry and Behavioral Sciences, Duke Center for Autism and K. Oliver1, M. Mello1 and A. C. Stahmer2, (1)Psychiatry and Behavioral Brain Development, Durham, NC, (4)Chan Division of Occupational Sciences, University of California at Davis MIND Institute, Sacramento, Science and Occupational Therapy, University of Southern California, CA, (2)UC Davis MIND Institute, University of California, Davis, Los Angeles, CA, (5)Department of Child and Adolescent Psychiaty, Sacramento, CA New York University Langone Health, New York, NY, (6)Duke Center for Autism and Brain Development, Department of Psychiatry and 417.034 The Need for Educational Screen Time Guidelines for Behavioral Sciences, Duke University, Durham, NC, (7)Seattle Childrens, Children with ASD: An Exploratory Study on Clinicians’ Perceptions Y. Seattle, WA, (8)UCSF, San Francisco, CA, (9)Seaver Autism Center Mayer1, T. Goldberger1, N. Dispirito1, M. Cohen Eilig2, A. Glodjo3 and T. for Research and Treatment, Department of Psychiatry, Icahn School Jarus4, (1)UBC, Vancouver, BC, Canada, (2)Developmental Pediatrics, of Medicine at Mount Sinai Hospital, New York, NY, (10)Lurie Center Sunny Hill Health Centre at BC Children’s Hospital, Vancouver, for Autism, Massachusetts General Hospital, Lexington, MA, (11) BC, Canada, (3)Sunny Hill Health Centre at BC Children’s Hospital, Product Development Neuroscience, F. Hoffmann-La Roche Ltd., Basel, Vancouver, BC, Canada, (4)UBC, vancouver, BC, Canada Switzerland, (12)Psychiatry, New York State Psychiatric Institute / Columbia University, New York, NY 417.036 Understanding the Impact of the Covid-19 Pandemic on the Education of Autistic School Age Children and Their Families D. May1, 418.003 An Ecological Momentary Assessment (EMA) Study of I. Dale2 and H. Judge3, (1)National Autistic Society, London, United Parent Emotion Regulation, BAP, and Child Behavior Problems A. Kingdom of Great Britain and Northern Ireland, (2)The National Autistic Rovane1, T. N. Worley2 and R. Hock2, (1)Psychology, University of South Society, Sheffield, United Kingdom, (3)National Autistic Society, London, Carolina, Columbia, SC, (2)University of South Carolina, Columbia, SC United Kingdom

417.037 Using Parent-Created and Parent-Implemented Video Prompting to Promote the Acquisition of Daily Living Skills for an Adolescent with ASD G. Yakubova and B. B. Chen, University of Maryland, College Park, MD

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418.004 Assessing Automatic Emotion Processing in Boys with 418.013 Emotional Regulation in Children with Autism: The Role of Autism Via Eye Tracking and Facial Mimicry S. Van der Donck1,2, Ethnicity M. Mahjoob1, R. Cardy2, S. Monga3, A. Dupuis4, J. A. Brian2, S. Vettori1,2, M. Dzhelyova3, S. S. Mahdi4,5, P. Claes4,5,6, J. Steyaert1,2 B. Andrade5, E. Anagnostou6 and A. Kushki7, (1)University of Toronto, and B. Boets1,2, (1)Center for Developmental Psychiatry, KU Leuven, Toronto, ON, Canada, (2)Holland Bloorview Kids Rehabilitation Hospital, Leuven, Belgium, (2)Leuven Autism Research Consortium (LAuRes), KU Toronto, ON, Canada, (3)The Hospital for Sick Children, Toronto, ON, Leuven, Leuven, Belgium, (3)Psychological Sciences Research Institute Canada, (4)Biostatistics, University of Toronto, Dalla Lana School of and Institute of Neuroscience, UCL, Louvain-la-Neuve, Belgium, (4) Public Health, Toronto, ON, Canada, (5)Centre for Addiction and Mental Department of Electrical Engineering (ESAT/PSI), KU Leuven, Leuven, Health, Toronto, ON, Canada, (6)Autism Research Center, Bloorview Belgium, (5)Medical Imaging Research Center, MIRC, UZ Leuven, Research Institute, Holland Bloorview Kids Rehabilitation Hospital, Leuven, Belgium, (6)Department of Human Genetics, KU Leuven, Toronto, ON, Canada, (7)Bloorview Research Institute, Toronto, ON, Leuven, Belgium Canada

418.005 Associations between Objectively Measured Facial 418.014 Investigating the Mediating Effects of Alexithymia, Expressions during the ADOS-2 and the Calibrated Severity Scores in Intolerance of Uncertainty and Anxiety on the Relationship between 3-Year-Olds with Suspected ASD Y. A. Ahn1, J. M. Moffitt1, S. Custode1, Sensory Processing and Restricted and Repetitive Behaviours in Autistic A. L. Beaumont2, S. M. Cardona1, M. Parladé2, J. Durocher2, M. N. Adults H. L. Moore1, S. Brice2, M. Freeston3, B. Ingham4, J. R. Parr2 Hale2, M. Alessandri2, L. K. Perry1 and D. S. Messinger2, (1)Psychology, and J. Rodgers2, (1)Newcastle University, Newcastle upon Tyne, United University of Miami, Coral Gables, FL, (2)University of Miami, Coral Kingdom, (2)Population Health Sciences Institute, Newcastle University, Gables, FL Newcastle upon Tyne, United Kingdom, (3)School of Psychology, Newcastle University, Newcastle upon Tyne, United Kingdom, (4) 418.006 Characteristics Associated with Anxiety in Youth with Autism Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, 1 1 2 Spectrum Disorders S. L. de Marchena , B. Hayse , S. Hunter , C. Newcastle upon Tyne, United Kingdom Jorgenson3 and K. Nowell4, (1)University of Missouri, Columbia, MO, (2)Thompson Center, University of Missouri, Columbia, MO, (3)Special 418.015 Measuring Functional Deficits in Relation to Emotion Education, University of Missouri, Columbia, MO, (4)Thompson Center Regulation Problems in Autism Spectrum Disorders Using the Cafas J. for Autism & Neurodevelopmental Disorders, Columbia, MO Golt1, C. A. Mazefsky2 and S. W. White3, (1)The University of Alabama, Tuscaloosa, AL, (2)Department of Psychiatry, University of Pittsburgh 418.007 Characterizing Difficulties with Emotion Regulation in School of Medicine, Pittsburgh, PA, (3)Psychology, The University of 1,2 2 3 Toddlers with ASD T. N. Day , C. A. Mazefsky and A. M. Wetherby , Alabama, Tuscaloosa, AL (1)Florida State University, Tallahassee, FL, (2)Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, (3)Florida 418.016 Modeling Prospective Predictors of Mental Health Symptoms State University Autism Institute, Tallahassee, FL across the First Semester of College E. E. McKenney1 and K. O. Gotham2, (1)Rowan University, Glassboro, NJ, (2)Psychiatry and 418.008 Correlates of Anxiety in Autistic and Non-Autistic Individuals Behavioral Sciences, Vanderbilt University Medical Center, Nashville, TN with Moderate-Profound Intellectual Disability or Those Who Speak Few or No Words G. Edwards1, J. Tarver1, C. Oliver2 and J. Waite1, (1) 418.017 Mothers of Autistic Children Recognize Emotions As Well Aston University, Birmingham, United Kingdom, (2)Cerebra Centre for As College Women A. J. Lampi and V. K. Jaswal, University of Virginia, Neurodevelopmental Disorders, Birmingham, United Kingdom Charlottesville, VA

418.009 Debunking the Myth of Autism and Empathy: Exploring 418.018 Multimodal and Dimensional Emotion Recognition Among Alexithymia As a Mediator E. J. Adler, H. K. Schiltz, S. A. Lehman, Children with and without ASD: Examining the Impact of ASD Symptoms N. Gordon and A. V. Van Hecke, Psychology, Marquette University, and Alexithymia S. Sivathasan, J. Burack and E. M. Quintin, Educational Milwaukee, WI & Counselling Psychology, McGill University, Montreal, QC, Canada

418.010 Do Alexithymia Traits or Autism Traits Specifically Explain 418.019 Multisensory Perception of Expressions of Emotion in Depression in Autism? C. Bloch1,2, L. Burghof2, F. G. Lehnhardt2, K. Autistic Children and Adolescents K. Ainsworth1, F. Falagiarda2, O. Vogeley2,3 and C. M. Falter-Wagner1,4, (1)Department of Psychiatry and Collignon3 and A. Bertone1, (1)McGill University, Montreal, QC, Canada, Psychotherapy, LMU Hospital Munich, Munich, Germany, (2)Department (2)Université Catholique de Louvain, Louvain, Belgium, (3)Université of Psychiatry and Psychotherapy, University Hospital Cologne, Cologne, Catholique de Louvain, Louvain, QC, Belgium Germany, (3)Institute of Neuroscience and Medicine (INM3), Research Center Jülich, Jülich, Germany, (4)Department of Psychology, University 418.020 Self-Reported Outcomes of School-Aged Children at of Cologne, Cologne, Germany Elevated Likelihood for Autism Spectrum Disorder: Preliminary Results of a Longitudinal Study F. Vlaeminck, I. Schietecatte, P. Warreyn and 418.011 Emotion Dysregulation in Young Children with ASD: H. Roeyers, Department of Experimental-Clinical and Health Psychology, Exploring Individual- and Family-Level Factors H. F. Branyan1, D. Ghent University, Ghent, Belgium Swain2 and S. H. Kim3, (1)Center for Autism and the Developing Brain, White Plains, NY, (2)Virginia Polytechnic Institute and State University, Blacksburg, VA, (3)Psychiatry, Center for Autism and the Developing Brain, White Plains, NY

418.012 Emotion Regulation Strategies, Autistic Traits and Socialisation L. S. Iao, Department of Psychology, Nottingham Trent University, Nottingham, United Kingdom

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418.022 Studying How Physiological Arousal and Emotion Regulation Poster Session Interact in Children Diagnosed with Autism Spectrum Disorder B. Syed1, R. Cardy2, S. Monga3, A. Dupuis4, J. A. Brian2, B. Andrade5, E. Poster 419 - Epidemiology/population studies Anagnostou6 and A. Kushki7, (1)University of Toronto, Toronto, ON, Canada, (2)Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, 419.001 Age at First Maternal Concern about Development and Canada, (3)The Hospital for Sick Children, Toronto, ON, Canada, (4) Time to Services Among Children with Autism Spectrum Disorder J. Van 1 2 3 4 5 6 Biostatistics, University of Toronto, Dalla Lana School of Public Health, Dyke , C. DiGuiseppi , T. Crume , N. Reyes , A. Alexander , B. Barger , 7 8 9 10 Toronto, ON, Canada, (5)Centre for Addiction and Mental Health, R. Fitzgerald , K. Hightshoe , E. Moody , K. Pazol , C. Robinson 11 12 13 8 Toronto, ON, Canada, (6)Autism Research Center, Bloorview Research Rosenberg , E. Rubenstein , L. Wiggins and S. Rosenberg , (1) Institute, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, University of Colorado, Aurora, CO, (2)Colorado School of Public Health, Canada, (7)Bloorview Research Institute, Toronto, ON, Canada University of Colorado Anschutz Medical Campus, Aurora, CO, (3) Epidemiology, University of Colorado Anschutz Medical Campus, Aurora, 418.023 The Link between Emotion Regulation Abilities in Children CO, (4)JFK Partners, University of Colorado Anschutz Medical Campus, with ASD and Depressive Symptomatology in Their Parents A. P. Aurora, CO, (5)NCBDDD, Centers for Disease Control and Prevention, Costa1, K. Schneider2 and G. Steffgen3, (1)University of Luxembourg, Atlanta, GA, (6)Georgia State University, Atlanta, GA, (7)Washington Esch sur Alzette, LUXEMBOURG, (2)University of Luxembourg, Esch- University School of Medicine, St. Louis, MO, (8)University of Colorado sur-Alzette, Luxembourg, (3)Institute for Health and Behaviour, University Anschutz Medical Campus, Aurora, CO, (9)Wyoming Institute for of Luxembourg, Luxembourg, Luxembourg Disabilities, University of Wyoming, Laramie, WY, (10)Division of Human Development and Disability, Centers for Disease Control and Prevention, 418.024 The Operationalisation of Uncertainty in Experimental National Center on Birth Defects and Developmental Disabilities, Atlanta, Research in Autism and Anxiety: A Systematic Review L. Lennuyeux- GA, (11)University of Colorado / JFK Partners, Aurora, CO, (12)Waisman 1 2 3 Comnene , S. B. Gaigg and F. Rigoli , (1)Department of Psychology, Center at UW Madison, Madison, WI, (13)Centers for Disease Control City, University of London, London, United Kingdom, (2)Autism Research and Prevention, Atlanta, GA Group, City, University of London, London, United Kingdom, (3) Psychology, City, University of London, London, United Kingdom 419.002 Are People with Autism over-Represented in Homelessness? - Report from a Prevalence Estimation in the Republic of Ireland. M. 418.025 The Recognition of Speech and Song-Evoked Emotions R. Sweeney1, A. M. Boilson2 and B. Casey3, (1)School of Nursing, Among Children with ASD and Typical Development: Does Emotion Psychotherapy & Community Health, Dublin City University, Dublin, Intensity Impact Performance? T. Fernandes, J. Burack and E. M. Ireland, (2)School of Nursing & Human Sciences, Dublin City University, Quintin, Educational & Counselling Psychology, McGill University, Dublin 9, Ireland, (3)School of Nursing, Psychotherapy and Community Montreal, QC, Canada Health, Dublin City University, Dublin 9, Ireland

418.026 Two Pathways: The Contribution of Autistic and Alexithymic 419.003 ASD Traits, Social Capital, and Depression Among School- Traits to Emotion Recognition Difficulties C. T. Keating and J. L. Cook, Aged Children H. Mori1, M. Adachi2,3, M. Takahashi2,3, H. Shinkawa1 School of Psychology, University of Birmingham, Birmingham, United and K. Nakamura1,4, (1)Research Center for Child Mental Development, Kingdom Graduate School of Medicine, Hirosaki University, Hirosaki, Japan, (2) Department of Clinical Psychological Science, Hirosaki University, 418.027 Understanding the Influence of Social Interactions on Hirosaki, Japan, (3)Research Center for Child Mental Development, Negative Affect in Autistic Adults with Social Anxiety D. L. Limon1, D. Graduate School of Medicine, Hirosaki University, Hirosaki, Japan, (4) Gifford2, D. Melanson2, K. M. Normansell-Mossa3, J. A. Nielsen1 and Department of Neuropsychiatry, Graduate School of Medicine, Hirosaki M. South4, (1)Brigham Young University, Provo, UT, (2)Neuroscience, University, Hirosaki, Japan Brigham Young University, Provo, UT, (3)Clinical Psychology, Brigham Young University, Provo, UT, (4)Psychology & Neuroscience, Brigham 419.004 Association between Prenatal Exposure to Pesticide Young University, Provo, UT Residues in the Diet and Child Autism-Related Traits in a High-Risk Cohort E. Joyce1, R. J. Schmidt2, A. Y. Song3, H. E. Volk3, L. A. Croen4, M. D. Fallin3, I. Hertz-Picciotto5, C. J. Newschaffer6, J. Chavarro7 and K. Lyall8, (1)Epidemiology and Biostatistics, Drexel University, Philadelphia, PA, (2)Public Health Sciences, University of California Davis, Davis, CA, (3)Wendy Klag Center for Autism and Developmental Disabilities, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, (4) Division of Research, Kaiser Permanente, Oakland, CA, (5)University of California at Davis, Davis, CA, (6)College of Health and Human Development, Pennsylvania State University, University Park, PA, (7) Departments of Nutrition and Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, (8)A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA

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419.005 Association between Prenatal Nutrients and Autism-Related 419.009 COVID-19 and Alterations in Behavioral and Dietary Traits in the EARLI Study Using a Mixtures Approach R. Vecchione1, Outcomes in Children with Autism Spectrum Disorder: Disparities By G. B. Hamra2, H. E. Volk3, M. D. Fallin3, L. A. Croen4, I. Hertz-Picciotto5, Income and Food Security Status A. A. Panjwani1,2, R. L. Bailey1 and B. C. J. Newschaffer6, R. J. Schmidt7 and K. Lyall8, (1)Drexel University, Kelleher2, (1)Nutrition Science, Purdue University, West Lafayette, IN, (2) Philadelphia, PA, (2)Epidemiology, Johns Hopkins Bloomberg School Psychological Sciences, Purdue University, West Lafayette, IN of Public Health, Baltimore, MD, (3)Wendy Klag Center for Autism and Developmental Disabilities, Johns Hopkins Bloomberg School of Public 419.010 Cumulative Incidence of Autism Spectrum Disorders in 1 2 2 Health, Baltimore, MD, (4)Division of Research, Kaiser Permanente, Tennessee K. Rossow , A. Vehorn and Z. Warren , (1)Vanderbilt, Oakland, CA, (5)University of California at Davis, Davis, CA, (6)College Nashville, TN, (2)Vanderbilt University Medical Center, Nashville, TN of Health and Human Development, Pennsylvania State University, 419.011 Developmental Profiles of Children at Risk for Autism University Park, PA, (7)Public Health Sciences, University of California Spectrum Disorder at School Entry: A Population-Based Cohort Study in Davis, Davis, CA, (8)A.J. Drexel Autism Institute, Drexel University, British Columbia, Canada A. Ip1, T. Oberlander2, B. Poon2, G. Hanley2 Philadelphia, PA and M. Guhn2, (1)University of British Columbia, Vancouver, BC, 419.006 Association of Maternal Thyroid Hormones with Autism- CANADA, (2)University of British Columbia, Vancouver, BC, Canada Related Traits in the EARLI and HOME Studies C. Zhong1, J. Braun2, 419.012 Disability Eligibility Patterns in Head Start Programs: A A. Chen3, Y. Xu4, G. B. Hamra5, B. Lanphear6, K. Yolton4, L. A. Croen7, Comparison of Puerto Rico and Mainland United States of America K. M. D. Fallin8, I. Hertz-Picciotto9, C. J. Newschaffer10 and K. Lyall11, Martinez-Torres1 and S. Camarata2, (1)1215 21st Avenue South Medical (1)Department of Epidemiology and Biostatistics, Drexel University, Center East, Vanderbilt University, Nashville, TN, (2)Hearing & Speech Philadelphia, PA, (2)Brown University, Providence, RI, (3)University of Sciences; Psychiatry & Behavioral Sciences, Vanderbilt University Cincinnati College of Medicine, Cincinnati, OH, (4)Cincinnati Children’s Medical Center, Nashville, TN Hospital Medical Center, Cincinnati, OH, (5)Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, (6)Health Sciences, 419.013 Effects of the COVID-19 Pandemic on Parent-Reported Simon Fraser University, Burnaby, BC, Canada, (7)Division of Research, Stress and ASD Symptoms in Toddlers in a Community Sample N. Kaiser Permanente, Oakland, CA, (8)Wendy Klag Center for Autism and O. Davis1, A. Leon Lua2, L. Knight2, M. McAllister2, E. Henderson2, Developmental Disabilities, Johns Hopkins Bloomberg School of Public L. Franz3, L. Sikich4, G. Dawson4, S. N. Compton5 and S. H. Kollins1, Health, Baltimore, MD, (9)University of California at Davis, Davis, CA, (1)Department of Psychiatry and Behavioral Sciences, Duke ADHD (10)College of Health and Human Development, Pennsylvania State Program, Duke University Medical Center, Durham, NC, (2)Duke University, University Park, PA, (11)A.J. Drexel Autism Institute, Drexel University Medical Center, Durham, NC, (3)Duke Center for Autism and University, Philadelphia, PA Brain Development, Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, (4)Department of Psychiatry and 419.007 Autism Spectrum Disorder (ASD) in West Africa – a Behavioral Sciences, Duke Center for Autism and Brain Development, Review M. Bakare1, M. Bello-Mojeed2 and K. M. Munir3, (1)Federal Durham, NC, (5)Psychiatry and Behavioral Sciences, Child/Family Neuro-Psychiatric Hospital, Upper Chime, New Haven, Enugu, Enugu Mental Health and Developmental Neuroscience, Duke University State, Nigeria, Enugu, Nigeria, (2)Medical, Federal Neuropsychiatric Medical Center, Durham, NC Hospital, Yaba, Nigeria, (3)Pediatrics and Psychiatry, University Center for Excellence in Developmental Disabilities (UCEDD), Division of 419.014 Exploring a Role for Parental Mental Health in Perception Developmental Medicine, Boston Children Hospital, 300 Longwood and Reports of Pain on Behalf of Children with Autism Spectrum Avenue, Boston, MA, USA, Boston, MA Disorder L. P. Grosvenor1, D. G. Whitney2,3, H. E. Volk1 and M. D. Fallin1, (1)Wendy Klag Center for Autism and Developmental Disabilities, 419.008 Concentrations of Lead, Mercury, Arsenic, Cadmium, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, Manganese, and Aluminum in the Blood of Pakistani Children with and (2)Department of Physical Medicine and Rehabilitation, University without Autism Spectrum Disorder and Their Associated Factors M. of Michigan, Ann Arbor, MI, (3)3Institute for Healthcare Policy and H. Rahbar1,2,3, S. H. Ibrahim4,5, S. I. Azam6, M. Hessabi2, F. Karim7, J. Innovation, University of Michigan, Ann Arbor, MI Zhang2,8, N. Gulzar ali4 and K. A. Loveland9, (1)Division of Clinical and Translational Sciences, Department of Internal Medicine, McGovern 419.015 Factors Associated with Knowledge, Attitude, and Practices Medical School, The University of Texas Health Science Center at of Physicians Related to Autism Spectrum Disorder in Romania M. H. Houston, Houston, TX, (2)Biostatistics/Epidemiology/Research Design Rahbar1,2,3, I. Dobrescu4,5, S. Gillani3, M. Hessabi2, M. Stancu4,5 and F. (BERD) core, Center for Clinical and Translational Sciences (CCTS), Rad4,5, (1)Division of Clinical and Translational Sciences, Department The University of Texas Health Science Center at Houston, Houston, TX, of Internal Medicine, McGovern Medical School, The University of (3)Department of Epidemiology, Human Genetics, and Environmental Texas Health Science Center at Houston, Houston, TX, (2)Biostatistics/ Sciences, School of Public Health, The University of Texas Health Epidemiology/Research Design (BERD) core, Center for Clinical and Science Center at Houston, Houston, TX, (4)Department of Pediatrics Translational Sciences (CCTS), The University of Texas Health Science and Child Health, Aga Khan University, Karachi, Pakistan, (5)Child Center at Houston, Houston, TX, (3)Department of Epidemiology, Human development and Rehabilitation Centre, Aga Khan University, Karachi, Genetics, and Environmental Sciences, School of Public Health, The Pakistan, (6)Department of Community and Health Sciences, Aga University of Texas Health Science Center at Houston, Houston, TX, (4) Khan University, Karachi, Pakistan, (7)Department of community health Child and Adolescent Psychiatry Department, University of Medicine and sciences, Aga Khan University, Karachi, Pakistan, (8)Department of Pharmacy “Carol Davila”, Bucharest, Romania, (5)Child and Adolescent Biostatistics and Data Science, School of Public Health, The University Psychiatry, “Prof. Dr.Alex. Obregia” Psychiatry Hospital, Bucharest, of Texas Health Science Center at Houston, Houston, TX, (9)Louis Romania A Faillace, MD, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX

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419.016 First Trimester Maternal Serum Folate and Child Autism 419.022 Prenatal Exposure to a Mixture of Persistent Organic Spectrum Disorder A. M. Iosif1, O. Malysheva2, M. Caudill2, J. E. Pollutants and Autism-Related Outcomes in Children A. Y. Song1, E. Deason1, K. M. Bakulski3, C. J. Newschaffer4, I. Hertz-Picciotto5, L. A. M. Kauffman2, K. Lyall2, L. Song1, L. A. Croen3, M. D. Fallin1, I. Hertz- Croen6, M. D. Fallin7 and R. J. Schmidt1, (1)Public Health Sciences, Picciotto4, R. J. Schmidt5, C. J. Newschaffer6 and H. E. Volk1, (1)Wendy University of California Davis, Davis, CA, (2)Division of Nutritional Klag Center for Autism and Developmental Disabilities, Johns Hopkins Sciences, College of Agriculture and Life Sciences, Cornell University, Bloomberg School of Public Health, Baltimore, MD, (2)A.J. Drexel Autism Ithaca, NY, (3)University of Michigan, Ann Arbor, MI, (4)College of Health Institute, Drexel University, Philadelphia, PA, (3)Division of Research, and Human Development, Pennsylvania State University, University Kaiser Permanente, Oakland, CA, (4)University of California at Davis, Park, PA, (5)University of California at Davis, Davis, CA, (6)Division of Davis, CA, (5)Public Health Sciences, University of California Davis, Research, Kaiser Permanente, Oakland, CA, (7)Wendy Klag Center Davis, CA, (6)College of Health and Human Development, Pennsylvania for Autism and Developmental Disabilities, Johns Hopkins Bloomberg State University, University Park, PA School of Public Health, Baltimore, MD 419.023 Prevalence and Characteristics of Autism Spectrum Disorder 419.017 Higher Than Expected ASD Prevalence in Toms River, Among Low Income Children and Adolescents in Wisconsin: Results New Jersey in 2016 W. Zahorodny1 and J. Shenouda2, (1)Rutgers New from a Statewide Population-Based Study M. S. Durkin1, O. M. Pokoski2, Jersey Medical School, Newark, NJ, (2)Pediatrics, Rutgers NJ Medical S. Furnier2 and A. Salinas3, (1)Population Health Sciences, University School, Newark, NJ of Wisconsin School of Medicine and Public Health, Madison, WI, (2) Population Health Sciences, University of Wisconsin-Madison, Madison, 419.018 Impact of Belgian COVID-19 Lockdown Restrictions on WI, (3)Waisman Center, University of Wisconsin-Madison, Madison, WI Autistic Individuals’ Behaviors and Their Parents’ Quality of Life M. Weyland1, P. Maes1, M. Kissine1 and P. Defresne2, (1)ACTE — Center 419.025 Role of Metabolic Genes (GSTT1, GSTP1, GSTM1) in of research in Linguistics — ULB Neuroscience Institute, Université Blood Mercury Concentrations of Jamaican Children with and without libre de Bruxelles, Brussels, Belgium, (2)Fondation SUSA, Université de Autism Spectrum Disorder M. H. Rahbar1,2,3, M. E. Samms-Vaughan4, S. Mons, Mons, Belgium Saroukhani2,3, J. Bressler3,5, M. Hessabi2, M. L. Grove3,5, S. Shakespeare- Pellington4, K. A. Loveland6, C. Beecher7 and W. McLaughlin7,8, (1) 419.019 Maternal Prenatal Perceived Stress in Relation to Autism- Division of Clinical and Translational Sciences, Department of Internal 1 2 Related Symptoms at Age Three D. H. Hoang and R. J. Schmidt , (1) Medicine, McGovern Medical School, The University of Texas Health University of California, Davis, Davis, CA, (2)Public Health Sciences, Science Center at Houston, Houston, TX, (2)Biostatistics/Epidemiology/ University of California Davis, Davis, CA Research Design (BERD) core, Center for Clinical and Translational Sciences (CCTS), The University of Texas Health Science Center 419.020 Maternal Supplemental Nutrient Mixtures across Pre- at Houston, Houston, TX, (3)Department of Epidemiology, Human Conception and Pregnancy in Relation to Autism Spectrum Disorder in Genetics, and Environmental Sciences, School of Public Health, The the Child R. J. Schmidt1, A. M. Iosif1, A. Goodrich1, K. M. Bakulski2, S. University of Texas Health Science Center at Houston, Houston, TX, Ozonoff3, G. B. Hamra4 and D. Tancredi5, (1)Public Health Sciences, (4)Department of Child & Adolescent Health, The University of the University of California Davis, Davis, CA, (2)University of Michigan, Ann West Indies, Mona Campus, Kingston, Jamaica, (5)Human Genetics Arbor, MI, (3)Psychiatry and Behavioral Sciences, University of California Center, School of Public Health, The University of Texas Health Science at Davis, MIND Institute, Sacramento, CA, (4)Epidemiology, Johns Center at Houston, Houston, TX, (6)Louis A Faillace, MD, Department Hopkins Bloomberg School of Public Health, Baltimore, MD, (5)UC Davis of Psychiatry and Behavioral Sciences, McGovern Medical School, School of Medicine, Sacramento, CA The University of Texas Health Science Center at Houston, Houston, 419.021 Positive and Negative Impact of Initial Covid-19 Home- TX, (7)Department of Basic Medical Sciences, The University of the Quarantine Period on Children with ASD and Their Families A. Arazi1, J. West Indies, Mona Campus, Kingston, Jamaica, (8)Caribbean Genetics Koller2, D. A. Zachor3, O. Golan4, Y. Sadaka5, D. Eytan6, O. E. Stolar7, (CARIGEN), The University of the West Indies, Mona Campus, Kingston, N. Atzva Poria8, H. Golan9, I. Menashe10, G. Meiri11, L. V. Gabis12 and I. Jamaica Dinstein13, (1)Department of Cognitive and Brain Sciences, Ben Gurion 419.026 Screen Time and Obesity in Children with and without University, Beer Sheba, Israel, (2)Seymour Fox School of Education, Autism Spectrum Disorder A. Must1, D. Tybor2, A. Bowling3, M. Eliasziw1, Hebrew University of Jerusalem, Jerusalem, Israel, (3)The Autism T. Kral4, S. Magaña5, L. Sikich6, H. Stanish7, L. G. Bandini8 and C. Center/ALUT, Pediatrics, Tel Aviv University /Shamir (Assaf Harofeh) Curtin9, (1)Tufts University School of Medicine, Boston, MA, (2)Public Medical Center, Zerifin, Israel, (4)Department of Psychology, Bar-Ilan Health and Community Medicine, Tufts University, Boston, MA, (3) University, Ramat-Gan, Israel, (5)Child Development Center, Ministry of School of Health Sciences, Merrimack College, North Andover, MA, (4) Health, Beer Sheva, Israel, (6)School of Education, Bar Ilan University, University of Pennsylvania School of Nursing, Philadelphia, PA, (5)Steve Ramat Gan, Israel, (7)Autism Center, Assaf Harofeh Medical Center, Hicks School of Social Work, University of Texas at Austin, Austin, TX, zerifin, Israel, (8)Psychology, Ben Gurion University, Beer Sheva, Israel, (6)Department of Psychiatry and Behavioral Sciences, Duke Center for (9)Physiology, Ben-Gurion University of the Negev, Beer Sheva, Israel, Autism and Brain Development, Durham, NC, (7)Department of Exercise (10)Public Health, Ben Gurion University, Beer Sheva, Israel, (11) and Health Sciences, University of Massachusetts- Boston, Boston, MA, National Autism Research Center, Beer Sheva, Israel, (12)Pediatrics, (8)Eunice Kennedy Shriver Center, University of Massachusetts Medical Sheba Medical Center, Rehovot, ISRAEL, (13)Psychology Department, School, Worcester, MA, (9)University of Massachusetts Medical School, Ben-Gurion University of the Negev, Beer Sheva, Israel Waltham, MA

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419.027 Service and Support Needs for Families of Children with 420.003 Poor Sperm DNA Quality and DNA Methylation Alterations: a Neurodevelopmental Disability in Canada during the COVID-19 Possible Implications in Offspring Susceptibility for ASD. S. N. Khan1, Pandemic: Caregivers’ Perspectives M. Gonzalez1,2, A. Yusuf1,2, N. A. Katiyar2, S. Gulati3 and R. Dada1, (1)Laboratory for Molecular J. Wright3, M. Steiman2, A. Karpur4, A. Shih5, M. Elsabbagh1,2 and K. Reproduction and Genetics, Anatomy, All India Institute of Medical Shikako-Thomas6, (1)Neurology and Neurosurgery, McGill University, Sciences, New Delhi, New Delhi, India, (2)Computational Genomics Montreal, QC, Canada, (2)Azrieli Center for Autism Research, Montreal Centre, Division Of Biomedical Informatics, Indian Council Of Medical Neurological Institute-Hospital, Montreal, QC, Canada, (3)Biostatistics Research, New Delhi, India, New Delhi, India, (3)Centre of Excellence & Health Informatics, Kings College London, London, United Kingdom, and Advanced Research for Childhood Neurodevelopmental Disorders, (4)Autism Speaks, Princeton, NJ, (5)Autism Speaks, New York, NY, Child Neurology Division, Department of Pediatrics, All India Institute of (6)School of Physical and Occupational Therapy, McGill University, Medical Sciences, New Delhi, India Montreal, QC, Canada

419.028 Symptom Severity Outcomes of COVID-19 Confinement Among Youth with Autism C. Romero, L. Kupis, A. Avellaneda, A. Baez, Poster Session B. Dirks, A. L. Beaumont, S. M. Cardona, M. Parladé, M. Alessandri, J. Poster 421 - Ethics S. Nomi and L. Uddin, University of Miami, Coral Gables, FL 421.001 Use of a Best Practice Alert (BPA) to Increase Diversity 419.029 The Relationship between Childhood Weight Status and within a US-Based Autism Research Cohort G. Duhon1,2, A. R. Simon3, Autism Spectrum Disorder Varies By Age in a Sample of Sibling Dyads D. L. Limon1,4, G. Marzano2,5 and R. P. Goin-Kochel2, (1)Texas Children’s A. Must1, A. Bowling2, T. Kral3, S. Magaña4, L. Sikich5, H. Stanish6, D. Hospital, Houston, TX, (2)Baylor College of Medicine, Houston, TX, (3) Tybor7, L. G. Bandini8, C. Curtin9 and M. Eliasziw1, (1)Tufts University Trinity University, San Antonio, TX, (4)308 W North Temple, Baylor School of Medicine, Boston, MA, (2)School of Health Sciences, College of Medicine, Salt Lake City, UT, (5)Psychology, Texas Children’s Merrimack College, North Andover, MA, (3)University of Pennsylvania Hospital, Houston, TX School of Nursing, Philadelphia, PA, (4)Steve Hicks School of Social Work, University of Texas at Austin, Austin, TX, (5)Department of Psychiatry and Behavioral Sciences, Duke Center for Autism and Brain Development, Durham, NC, (6)Department of Exercise and Health Poster Session Sciences, University of Massachusetts- Boston, Boston, MA, (7)Public Poster 422 - Family Issues and Stakeholder Experiences Health and Community Medicine, Tufts University, Boston, MA, (8) Eunice Kennedy Shriver Center, University of Massachusetts Medical 422.001 “Delivered Right to Your Own Home” Stakeholder School, Worcester, MA, (9)University of Massachusetts Medical School, Perspectives on an at-Home Autism Likelihood Assessment C. E. Waltham, MA McCormick1, A. Pesaladinne2, R. A. Mason3, H. Crosley2, A. Austin2, 4 2 419.030 Understanding Sex-Specific Autism Spectrum Disorder B. Kelleher and A. L. DeMaria , (1)Human Development and Family Phenotypes: Total Population Study on Korean School-Aged Children Studies, Purdue University, West Lafayette, IN, (2)Purdue University, H. H. Kim1, H. Kim2, Y. J. Koh3, B. L. Leventhal1 and Y. S. Kim4, (1) West Lafayette, IN, (3)Educational Studies, Purdue University, West Department of Psychiatry and Behavioral Sciences, University of Lafayette, IN, (4)Psychological Sciences, Purdue University, West California San Francisco, San Francisco, CA, (2)Harvard T.H. Chan Lafayette, IN School of Public Health, Boston, MA, (3)The Korea Institute for 422.002 A Comparison of Non-Latino White and Culturally and Children’s Social Development, Rudolph Child Research Center, Seoul, Linguistically Diverse Parents’ Perceptions of and Experiences with Korea, Republic of (South), (4)Department of Psychiatry and Behavioral Autism Identification P. Chaxiong1, J. J. Wolff2, R. Vukovic1 and J. Sciences, University of California, San Francisco, San Francisco, CA A. Hall-Lande3, (1)Educational Psychology, University of Minnesota, Minneapolis, MN, (2)University of Minnesota, Minneapolis, MN, (3) UCEDD, University of MN, Minneapolis, MN Poster Session 422.003 A Developmental Perspective on Family Accommodation Poster 420 - Epigenetics in Autism: Preliminary Findings S. Wismel1, S. Dar1, D. A. Zachor2, E. Ben-Itzchak3, T. Matz Vaisman1, E. R. Lebowitz4 and J. Koller5, (1) 420.001 Alteration in Epigenetic Histone Deacetylase Enzymes in The Hebrew University of Jerusalem, Jerusalem, Israel, (2)The Autism Autism Spectrum Disorder Revealed By In Vivo PET-MRI Neuroimaging Center/ALUT, Pediatrics, Tel Aviv University /Shamir (Assaf Harofeh) J. Tseng1,2, B. G. Hightower1, A. J. Parmar1, J. E. Mullett3, C. J. Medical Center, Zerifin, Israel, (3)Bruckner Center for Research in McDougle2,3, J. M. Hooker1,2 and N. R. Zurcher1,2, (1)Athinoula A. Autism, Communication Disorder, Ariel University, Ariel, Israel, (4) Martinos Center for Biomedical Imaging, Department of Radiology, Yale Child Study Center, Yale School of Medicine, New Haven, CT, (5) Massachusetts General Hospital, Charlestown, MA, (2)Harvard Medical Seymour Fox School of Education, Hebrew University of Jerusalem, School, Boston, MA, (3)Lurie Center for Autism, Massachusetts General Jerusalem, Israel Hospital, Lexington, MA 422.004 A Pathway to Understanding: Autistic People’s Use of 420.002 Characterization of Screen Exposure in Preschoolers with Internet Memes to Illustrate Autistic Experience S. E. Woods, Discover ASD and Neurotypical Controls and Its Association with Behavioral Psychology Services, Lacey, WA Problems G. Garrido1, C. Amigo2, G. Lamas3 and F. Cardoso3, (1) Universidad de la República, Montevideo, Uruguay, (2)Clinica de 422.005 A Winning Lottery Ticket and a Miracle: Parents of Autistic psiquiatria pediátrica Facultad de medicina, UDELAR, Montevideo, Adults Describe What It Takes to Get Adequate Services D. Turnbull1 Uruguay, (3)Centro Hospitalario Pereira Rossell, Montevideo, Uruguay and M. Lawlor2, (1)University of Southern California, Los Angeles, CA, (2)USC, Los Angeles, CA

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422.006 Access to Interventions and Services for Families of Young 422.016 Caregiver Perspective on the Psychosocial and Behavioral Children with Autism Spectrum Disorder E. V. Ocampo1, R. A. Gordon1, Impact of COVID-19 on Children with ASD in the United States L. D. Smith2, J. Budenske3 and A. Wainer1, (1)Department of Psychiatry, Hewitson and P. Sachdev, The Johnson Center for Child Health and Rush University Medical Center, Chicago, IL, (2)Olivet University, Development, Austin, TX Bourbonnais, IL, (3)Rush University Medical Center, Chicago, IL 422.018 Challenging Behavior in ASD and Its Effects on Family G. 422.007 Affiliate Stigma, Empowerment, and Self-Esteem Among M. Kuravackel1, E. A. Roth2, H. A. Cooley-Cook3, M. Kong4 and Q. Xu5, Serbian Parents of Children with Autism Spectrum Disorder M. Čolić1 (1)University of Louisville School of Medicine, Louisville, KY, (2)Spalding and I. Milačić-Vidojević2, (1)Special Education Department, University University, Indianapolis, IN, (3)Kentucky Autism Training Center, of Hawaii at Manoa, Honolulu, HI, (2)Faculty of Special Education and University of Louisville, Louisville, KY, (4)Bioinformatics and Biostatistics, Rehabilitation, University of Belgrade, Belgrade, Serbia University of Louisville, Louisville, KY, (5)Biostatistics, University of Louisville, Louisville, KY 422.008 African Americans’ Perceptions of Children’s Behavior Associated with Autism Spectrum Disorder D. Ashby1, F. Jones2, A. 422.019 Child Social and Executive Function Problems Relate to Lucas-Wright3, O. Solomon4, A. Deavenport-Saman1, D. Vanderbilt5 Caregiver Sense of Self-Efficacy and Strain in Autism J. V. Smith1, A. and L. Yin5, (1)Children’s Hospital Los Angeles, Los Angeles, CA, (2) Verbalis2, A. C. Armour2, E. Burlinson1, R. Handsman2, A. B. Ratto2, B. J. Healthy African American Families, Los Angeles, CA, (3)Charles R. Anthony3, L. Anthony3 and L. Kenworthy2, (1)Center for Autism Spectrum Drew University of Medicine and Science, Los Angeles, CA, (4)University Disorders, Children’s National Hospital, Rockville, MD, (2)Center for of Southern California, Los Angeles, CA, (5)Children’s Hospital Los Autism Spectrum Disorders, Children’s National Hospital, Washington, Angeles/Keck School of Medicine of USC, Los Angeles, CA DC, (3)University of Colorado, Denver, Aurora, CO

422.009 Associations Among Autism Symptom Domains and Facets 422.020 Comparing Patient Experience with Longitudinal Autism of Parent Strain S. M. Brunt and M. O. Mazurek, University of Virginia, Care Via Virtual and in-Person Visits J. Reken1, N. Buranova2, K. Sohl3 Charlottesville, VA and A. Ohler4, (1)Child Health, University of Missouri, Columbia, MO, (2) Special Education, University of Missouri, Columbia, MO, (3)Department 422.010 Associations Among Child Autism Symptoms and IQ with of Child Health, University of Missouri, School of Medicine, Columbia, Mindful Parenting and Parent-Child Relationship Quality in Treatment- MO, (4)Statistics, University of Missouri, Columbia, MO Seeking Families N. Vashi, J. A. Weiss and Y. M. Bohr, Psychology, York University, Toronto, ON, Canada 422.021 Development of the Self-Assessment of Autistic Traits, a New Self-Report Scale Centered in the Autistic Experience N. 422.011 Autism and the Cultural Imagination: A Critical Analysis of Nadwodny1, J. Bascom2, S. daVanport3, J. F. Strang1, L. Anthony4, the Cultural Products Sustaining the Use of Behavioral Treatments for A. B. Ratto1, G. L. Wallace5, A. Verbalis1, C. E. Pugliese1, A. Song1, Autistics in the United States E. M. Bomgardner, Interdisciplinary and K. A. Pelphrey6 and L. Kenworthy1, (1)Center for Autism Spectrum Inclusive Education, Rowan University, Glassboro, NJ Disorders, Children’s National Hospital, Washington, DC, (2)Autistic Self Advocacy Network, Washington, DC, (3)Autistic Women & Nonbinary 422.012 Autistic People’s Experiences of the First UK-Wide Network, Lincoln, NE, (4)University of Colorado, Denver, Aurora, CO, (5) Lockdown and Lessons for Conducting Research during and after the The George Washington University, Washington, DC, (6)University of COVID-19 Pandemic A. X. Realpe1, N. Mills1, L. Beasant1, S. Douglas2, Virginia, Charlottesville, VA L. Kenny3 and D. Rai4, (1)Bristol Medical School, University of Bristol, Bristol, United Kingdom, (2)Bristol, United Kingdom, (3)Centre for 422.022 Engaging Community Stakeholders in Qatar to Develop Research in Autism and Education (CRAE), London, United Kingdom of Support Programs for Young Adults with Autism A. B. Ratto1, S. I. Great Britain and Northern Ireland, (4)Population Health Sciences, Bristol Habayeb2, S. T. Al-Harahsheh3, C. E. Pugliese1, A. Verbalis1 and N. Medical School, Centre for Academic Mental Health, Bristol, United Nadwodny1, (1)Center for Autism Spectrum Disorders, Children’s Kingdom National Hospital, Washington, DC, (2)Catholic University of America, Washington, DC, (3)World Innovation Summit for Health, Doha, Qatar 422.013 Bedtime Resistance and Parent Stress in Families of 1 2 3 Children with Autism R. Finlayson , A. M. Estes , J. Munson and G. 422.023 Examining Sibling Relationships Among Children on the 4 Dawson , (1)College of Education, University of Washington, Seattle, Autism Spectrum: Clinical Characteristics of Autism and Links with WA, (2)Speech and Hearing Sciences, University of Washington, Seattle, Sibling Status and Rivalry C. Liu1, A. J. McVey1, A. Zaidman-Zait2, P. WA, (3)Psychiatry & Behavioral Sciences, University of Washington, Mirenda1, T. Bennett3, E. Duku4, M. Elsabbagh5, S. Georgiades6, I. M. Seattle, WA, (4)Department of Psychiatry and Behavioral Sciences, Duke Smith7, P. Szatmari8, W. J. Ungar9, T. Vaillancourt10, C. Waddell11, L. Center for Autism and Brain Development, Durham, NC Zwaigenbaum12 and C. M. Kerns1, (1)University of British Columbia, Vancouver, BC, Canada, (2)Tel-Aviv University, Tel-Aviv, Israel, (3) 422.015 Caregiver Experience with Telebaby: A Telehealth Offord Centre for Child Studies, McMaster University, Hamilton, ON, Intervention Designed for Caregivers of Infants with Early Signs of CANADA, (4)Offord Centre for Child Studies, McMaster University, Autism Spectrum Disorder (ASD) R. S. John1, M. R. Talbott2, S. J. Hamilton, ON, Canada, (5)Neurology and Neurosurgery, McGill Rogers3 and S. Dufek4, (1)UCD MIND Institute, Sacramento, CA, (2) University, Montreal, QC, Canada, (6)McMaster Autism Research Team, Psychiatry and Behavioral Sciences, University of California at Davis McMaster University, Hamilton, ON, Canada, (7)Dalhousie University MIND Institute, Sacramento, CA, (3)Department of Psychiatry and / IWK Health Centre, Halifax, NS, CANADA, (8)The Hospital for Sick Behavioral Sciences, The Medical Investigation of Neurodevelopmental Children, Toronto, ON, Canada, (9)The Hospital for Sick Children Disorders (MIND) Institute, UC Davis School of Medicine, University of Research Institute, Toronto, ON, Canada, (10)University of Ottawa, California Davis, Sacramento, CA, (4)Psychiatry, University of California, Ottawa, ON, Canada, (11)Simon Fraser University, Vancouver, BC, Davis, Sacramento, CA Canada, (12)University of Alberta, Edmonton, AB, Canada

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422.025 Experiences of Uruguayan Individuals with ASD and Their 422.031 How Does a Participatory Mentorship Program for Autistic Families , during COVID-19 Pandemic. G. Garrido1, M. Montenegro2, University Students Function during a Pandemic? K. Gillespie-Lynch1, C. Amigo3, C. Nava4, N. Barrios5, A. Rosoli6, S. H. Cukier7, R. A. B. Kofner2, E. Ilyes3, J. Delos Santos4, C. Frka5, M. Armstrong6, E. Garcia8, C. S. Paula9, J. M. Suárez10, M. Segura11, D. Valdez12 and A. Yamakado7, S. Shevchuk8, A. Riccio9, S. K. Kapp10, J. Herrell11 and Rattazzi7, (1)Universidad de la República, Montevideo, Uruguay, (2) D. DeNigris12, (1)Department of Psychology, College of Staten Island; University of Texas Rio Grande Valley, Edinburg, TX, (3)Clinica de CUNY Graduate Center, Brooklyn, NY, (2)CUNY, NY, NY, (3)Graduate psiquiatria pediátrica Facultad de medicina, UDELAR, Montevideo, Center; CUNY, Brooklyn, NY, (4)Hunter College, City University of New Uruguay, (4)Psychological Science, University of Texas Rio Grande York, New York, NY, (5)CSI, Staten Island, NY, (6)Washington University Valley, Edinburg, TX, (5)Fleni, Capital Federal, ARGENTINA, (6)Projects, of St. Louis, St. Louis, MO, (7)Washington University of St Louis, St. Organizacion Estados Iberoamericanos, Santo Domingo, Dominican Louis, MO, (8)College of Staten Island, CUNY, Staten Island, NY, (9) Republic, (7)PANAACEA, Buenos Aires, Argentina, (8)Clínica Las Department of Psychology, The Graduate Center, City University of New Condes, Santiago, Chile., Santiago, CHILE, (9)Developmental Disorder York (CUNY), New York, NY, (10)Department of Psychology, University Program, Universidade Presbiteriana Mackenzie, São Paulo, Brazil, (10) of Portsmouth, Portsmouth, United Kingdom, (11)CUNY School of Clínica de pisquiatría pediátrica, Facultad de medicina, Universidad de la Professional Studies, New York, NY, (12)Psychology & Counseling, Republica, Montevideo, Uruguay, (11)Facultad de medicina, Montevideo, Fairleigh Dickinson University, Madison, NJ Uruguay, (12)Universidad de Buenos Aires- FLACSO, Buenos Aires, Argentina 422.032 I Can Actually Do It without Any Help or Someone Watching over Me All the Time and Giving Me Constant Instruction..’ Autistic 422.026 Exploring Psychological Distress and Burden Among Adolescents’ Accounts of Using Video Game and Online Networking Informal Caregivers of Children with Autism Spectrum Disorder in Ghana, While Gaming G. Pavlopoulou1, C. Usher2 and A. Pearson3, (1) West Africa P. Ekremet1, M. Bello-Mojeed2, Y. Adeniyi3, O. Omigbodun3, Department of Psychology and Human Development, Institute of J. Akinyemi3 and K. Kusi-Mensah4, (1)Accra Psychiatric Hospital, Accra, Education, UCL, London, United Kingdom, (2)Department of Psychology Ghana, (2)Medical, Federal Neuropsychiatric Hospital, Yaba, Nigeria, and Human Development, University of Bedfordshire, London, United (3)University of Ibadan, Ibadan, Nigeria, (4)Komfo Anokye Teaching Kingdom, (3)University of Sunderland, Sunderland, United Kingdom Hospital, Kumasi, Ghana 422.033 Impact of a Sibling Support Group on Relationship Quality 422.027 Families Facing COVID: The Association between Perceived and Siblings’ Knowledge of Autism Spectrum Disorder (ASD) J. M. Vulnerability for Contracting COVID-19, and Suspected or Confirmed Wolf1, M. Coffman2, N. Kelso3, M. L. Braconnier4 and J. McPartland1, (1) Cases of COVID-19 and Caregiver Mental Health H. OBrien1, J. A. Child Study Center, Yale University School of Medicine, New Haven, Weiss2, C. M. Kerns3 and C. McMorris4, (1)University of Calgary, Calgary, CT, (2)Virginia Tech, Blacksburg, VA, (3)University of Maryland, College AB, Canada, (2)Psychology, York University, Toronto, ON, Canada, (3) Park, College Park, MD, (4)Psychology, St. John’s University, Queens, University of British Columbia, Vancouver, BC, Canada, (4)Department NY of Paediatrics, University of Calgary, Calgary, AB, Canada 422.034 Influence of Parental Experience on ASD Knowledge and 422.028 Family Perceptions of Access to Healthcare Services for Identification: A Mixed Methods Approach C. H. Morgan1, M. M. Abdul- Autistic Young Adults Who Receive State Developmental Disability Chani1 and S. E. O’Kelley2, (1)Psychology, The University of Alabama Services A. Roux1, J. Rast1 and L. Shea2, (1)A.J. Drexel Autism Institute, at Birmingham, Birmingham, AL, (2)The University of Alabama at Drexel University, Philadelphia, PA, (2)A.J. Drexel Autism Institute, Birmingham, Birmingham, AL Philadelphia, PA 422.035 Investigating Mental Health in Autistic Children and Young 422.029 Gender Differences in Perceived Stigma Among Latino People during the COVID-19 Pandemic: Preliminary Findings from the Caregivers M. Montenegro1, M. M. Abdul-Chani2, A. Ramirez1, D. Astar Cohort F. Mgaieth1, M. Palmer1, S. Chandler1, V. Slonims2, A. Valdez3, A. Rosoli4, G. Garrido5, S. H. Cukier6, C. S. Paula7, R. A. Pickles1, M. Knapp3, S. Scott1, T. Charman1 and E. Simonoff1, (1)King’s Garcia8, A. Rattazzi6 and C. Nava9, (1)University of Texas Rio Grande College London, Institute of Psychiatry, Psychology and Neuroscience, Valley, Edinburg, TX, (2)Psychology, The University of Alabama London, United Kingdom, (2)Guy’s & St Thomas’ NHS Foundation Trust at Birmingham, Birmingham, AL, (3)Universidad de Buenos Aires- (Evelina Children’s Hospital), London, United Kingdom, (3)PSSRU, LSE, FLACSO, Buenos Aires, Argentina, (4)Projects, Organizacion Estados London, United Kingdom Iberoamericanos, Santo Domingo, Dominican Republic, (5)Universidad de la República, Montevideo, Uruguay, (6)PANAACEA, Buenos 422.036 Learning from COVID-19: Barriers and Facilitators to Coping Aires, Argentina, (7)Developmental Disorder Program, Universidade with Routine Disruption in Autistic Children with Complex Support 1 2 1 Presbiteriana Mackenzie, São Paulo, Brazil, (8)Clínica Las Condes, Needs D. Osmanaj , A. Roestorf and A. Lambrechts , (1)Psychology, Santiago, Chile., Santiago, CHILE, (9)Psychological Science, University City, University of London, London, United Kingdom, (2)Psychology, of Texas Rio Grande Valley, Edinburg, TX University of Stirling, Stirling, Scotland, United Kingdom

422.030 How Do You Talk about Autism?: Label Preferences within the North American Autism Community Z. M. Sargent, A. J. Lampi, K. M. Stockwell and V. K. Jaswal, University of Virginia, Charlottesville, VA

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422.037 Learning from the Experts: Evaluating a Participatory 422.045 Parental Distress and Parenting Quality in Families of Autism and Universal Design Training for University Teaching Staff Children with ASD: Evidence for Potential Compartmentalization A. T. Waisman1, E. Cage2, S. P. Santhanam3, I. Magiati4, P. Dwyer5, K. Preston1, J. K. Baker2, R. M. Fenning3, H. A. McGregor1, C. M. Sanner1, M. Stockwell6, J. Herrell7, H. M. Brown8, D. Davidson9, B. Kofner10, S. N. Chan4 and C. L. Neece1, (1)Psychology, Loma Linda University, Loma Shore11, D. Caudell12, E. Gurbuz13, Z. J. Williams14 and K. Gillespie- Linda, CA, (2)Center for Autism; Dept. of Child & Adolescent Studies, Lynch15, (1)University of Calgary, Calgary, AB, Canada, (2)Department California State University, Fullerton, Fullerton, CA, (3)Center for Autism, of Psychology, University of Stirling, Stirling, United Kingdom, (3)Speech, Child and Adolescent Studies, California State University, Fullerton, Language, Hearing Sciences, Metropolitan State University of Denver, Fullerton, CA, (4)Department of Psychology, Loma Linda University, Denver, CO, (4)Dept. of Psychology, National University of Singapore, Loma Linda, CA Singapore, Singapore, (5)Department of Psychology, University of California, Davis, Davis, CA, (6)University of Virginia, Charlottesville, VA, 422.046 Parental Quality of Life and Child’s Community Participation (7)CUNY School of Professional Studies, New York, NY, (8)Educational in Young Children with Autism Spectrum Disorder in Singapore R. 1 2 2 2 2 Psychology, University of Alberta, Edmonton, AB, Canada, (9) Aishworiya , S. C. Chong , K. Mulay , T. S. Lim , J. Kiing and Y. Q. 2 Psychology, Loyola University Chicago, Chicago, IL, (10)CUNY, NY, NY, Kang , (1)Paediatrics, National University Health System, Singapore, (11)Adelphi University, Newton, MA, (12)Vanderbilt University, Nashville, Singapore, (2)National University Hospital, Singapore, Singapore TN, (13)Psychology, Durham University, Durham, United Kingdom, 422.047 Predictors of Parent Activation in Caregivers of Children (14)Medical Scientist Training Program, Vanderbilt University School with ASD Using PAM-DD Y. Yu1, L. A. Ruble2, J. H. McGrew3 and D. of Medicine, Nashville, TN, (15)Department of Psychology, College of S. Murray4, (1)UC Davis MIND institute, Sacramento, CA, (2)Special Staten Island; CUNY Graduate Center, Brooklyn, NY Education, Ball State University, Muncie, IN, (3)Psychology, Indiana 422.038 Lived Experiences of Families As Youth with Autism and University - Purdue University Indianapolis, Indianapolis, IN, (4)Autism Mental Health Concerns Transition to Adulthood D. B. Nicholas1, W. Speaks, Boston, MA Mitchell2 and J. Ciesielski2, (1)University of Calgary, Edmonton, AB, 422.048 Predictors of Resilience in Parents of Children with Autism Canada, (2)University of Calgary, Calgary, AB, Canada Spectrum Disorder (ASD) J. M. Schwartzman1, M. E. Millan2 and G. W. 2 422.039 Marital Status of Parents Raising Individuals with Autism Gengoux , (1)Psychiatry and Behavioral Sciences, Vanderbilt University Spectrum Disorder (ASD) from Age 2 to 25 N. Bahri1, K. Sterrett2 and Medical Center, Nashville, TN, (2)Psychiatry and Behavioral Sciences, C. Lord2, (1)UCLA, Los Angeles, CA, (2)University of California, Los Stanford University School of Medicine, Stanford, CA Angeles, Los Angeles, CA 422.049 Provider Perspectives on Usual Care and Ndbi Models 1,2 2 422.040 Moving from Participants to Engaged Collaborators: within an Early Intervention System K. Pickard , H. Mellman , K. M. 3 2 3 Designing and Piloting a Stakeholder Developed Research Consultation Frost , J. Reaven and B. R. Ingersoll , (1)Emory University School of Model A. Wainer1, K. M. Walton2, M. Beard3, A. R. Borowy2, R. A. Medicine, Atlanta, GA, (2)JFK Partners, University of Colorado Anschutz Gordon1 and S. Petrill3, (1)Department of Psychiatry, Rush University Medical Campus, Aurora, CO, (3)Psychology, Michigan State University, Medical Center, Chicago, IL, (2)Nisonger Center, The Ohio State East Lansing, MI University, Columbus, OH, (3)Department of Psychology, The Ohio State 422.050 Psychological Impact of COVID-19 Pandemic in Italian University, Columbus, OH Families of Children with Neurodevelopmental Disorder N. Mazzoni, 422.041 Parent Perspectives on Use of Cannabis in Children with A. Bentenuto, M. Giannotti, P. Venuti and S. De Falco, Department of Autism Spectrum Disorder R. Lane1, B. B. Maddox2 and A. Bennett3, Psychology and Cognitive Science, University of Trento, Rovereto, Italy (1)Developmental and Behavioral Pediatrics, Children’s Hospital of 422.051 Resiliency Intervention for Siblings of Children with ASD Philadelphia, Philadelphia, PA, (2)Psychiatry, UNC TEACCH Autism K. Kuhlthau1, L. A. Fell2, L. Traeger3, C. M. Luberto4, B. Goshe5, D. A. Program, Chapel Hill, NC, (3)Children’s Hospital of Philadelphia, Iannuzzi6, G. K. Perez7 and E. Park1, (1)Massachusetts General Hospital, Philadelphia, PA Boston, MA, (2)Division of Academic Pediatrics, MGH, Boston, MA, (3) 422.042 Parent Stress Affects Their Responses to Children’s Psychiatry, Massachusetts General Hospital, Boston, MA, (4)Health Negative Emotions in ASD Families T. N. Worley1, A. Rovane2 and R. Policy Research Center at Mongon Institute, Mass General Hospital, Hock1, (1)University of South Carolina, Columbia, SC, (2)Psychology, Boston, MA, (5)Psychiatry, Mass General Hospital, Boston, MA, (6)125 University of South Carolina, Columbia, SC Nashua Street, MassGeneral Hospital, Boston, MA, (7)Health Policy Research Center at Mongon Institute, Mass General Hospital/Harvard 422.043 Parent-Child Integrated Music Program Supports Parent Medical School, Boston, MA Well-Being in Families of Young Children with and without ASD T. Liu1, L. Booke2 and M. D. Lense1, (1)Vanderbilt University Medical Center, 422.052 Rethinking Stakeholder Roles in ASC Early Interventions: Nashville, TN, (2)In Tune Music and Wellness, Nashville, TN The Development of a Stakeholder Driven Early Intervention Research Agenda A. Wainer1, R. A. Gordon1, A. R. Borowy2 and K. M. Walton2, (1) 422.044 Parent-Reported Behavioral Changes during the COVID-19 Department of Psychiatry, Rush University Medical Center, Chicago, IL, Pandemic in Children with Autism Versus Other Conditions A. Yusuf1,2, (2)Nisonger Center, The Ohio State University, Columbus, OH N. J. Wright3, M. Steiman2, A. Karpur4, A. Shih5, M. Elsabbagh1,2 and K. Shikako-Thomas6, (1)Neurology and Neurosurgery, McGill University, 422.053 Self-Determination As Perceived By Autistic Adolescents 1 Montreal, QC, Canada, (2)Azrieli Center for Autism Research, Montreal and Their Parents: A Mixed-Methods Approach R. Handsman , J. R. 2 3 1 1 Neurological Institute-Hospital, Montreal, QC, Canada, (3)Biostatistics Linde , B. B. Maddox , L. Kenworthy and C. E. Pugliese , (1)Center for & Health Informatics, Kings College London, London, United Kingdom, Autism Spectrum Disorders, Children’s National Hospital, Washington, (4)Autism Speaks, Princeton, NJ, (5)Autism Speaks, New York, NY, DC, (2)Georgetown University, Washington, DC, (3)Psychiatry, UNC (6)School of Physical and Occupational Therapy, McGill University, TEACCH Autism Program, Chapel Hill, NC Montreal, QC, Canada

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422.054 Stress and Resilient Coping in Caregivers of Autistic People 422.064 The Relation of ASD Symptom Severity to Parental during the COVID-19 Pandemic K. A. Friesen1, J. A. Weiss2, S. J. Expressed Emotion, Affiliate Stigma, and Typically-Developing Sibling Howe1, C. M. Kerns3 and C. McMorris4, (1)University of Calgary, Calgary, Internalizing Behavior A. H. Brinkman1, T. D. Barry2 and R. A. AB, Canada, (2)Psychology, York University, Toronto, ON, Canada, (3) Lindsey1, (1)Washington State University, Pullman, WA, (2)Psychology, University of British Columbia, Vancouver, BC, Canada, (4)Department Washington State University, Pullman, WA of Paediatrics, University of Calgary, Calgary, AB, Canada 422.065 Trends in U.S. Autism Research Funding: Interagency 422.055 Stress, Coping, and Quality of Life in Parental Caregivers Autism Coordinating Committee Autism Research Portfolio Analysis of Individuals with Autism Spectrum Disorder D. M. Turnage, College of Report S. Daniels1, O. Celestin2, J. Rava3 and K. Ferrara4, (1)National Nursing, University of Central Florida, Orlando, FL Institute of Mental Health (NIMH), Rockville, MD, (2)OARC, NIH/NIMH, Bethesda, MD, (3)National Institute of Mental Health, Office of Autism 422.057 The ASD Parent Perspective: Examining Parent Gender Research Coordination (OARC), Rockville, MD, (4)National Institute of As a Moderator in the Relationship between Child Behavior Problems, Mental Health (NIMH), ROCKVILLE, MD ASD Symptom Severity, and Parent Stress. C. Noble and T. Du Rocher Schudlich, Psychology, Western Washington University, Bellingham, WA 422.066 Understanding Existing Involvement with Community-Based ASD Care Systems for Children from Linguistically Diverse Families 422.058 The Development of an Autistic-Led Research Agenda within a Family Navigation Model A. Miceli1, A. Lavanderos1, N. Harris1, 1 2 for Autistic Women and Girls in Australia R. Grove , H. Clapham , S. A. S. Weitlauf1, E. Davis2, M. West2 and Z. Warren2, (1)Vanderbilt 2 1 2 Gurrin , G. Hall and T. Moodie , (1)University of Technology Sydney, Kennedy Center, Vanderbilt University Medical Center, Nashville, TN, (2) Sydney, NSW, Australia, (2)University of Technology Sydney Autistic Vanderbilt University Medical Center, Nashville, TN Advisory Board, Sydney, NSW, Australia 422.067 Use of Stakeholder Focus Groups to Develop Content and 422.059 The Developmental Process of Parent Advocacy for Black Structure of a New Measure of Social Communication for Young Children Families of Children on the Autism Spectrum: Semi-Structured Interviews with Autism Spectrum Disorder K. M. Walton1, A. R. Borowy1 and C. of Black Autism Parents Serving As Peer Coaches. E. Morgan, MIND Taylor2, (1)Nisonger Center, The Ohio State University, Columbus, OH, Institute, UC Davis, Sacramento, CA (2)The Ohio State University, Columbus, OH

422.060 The Experiences of Affiliate Stigma, Social Support, 422.068 Use of Technology in Autistic Children and Adolescents and Stress Among Mothers of Children on the Autism Spectrum during COVID-19 Lockdown J. Desrosiers1, K. Sotelo2, A. Ethier2, I. 1 2 3 4 L. Lipovenko , J. Brier , R. L. Fischbach , B. C. Lyman and S. L. Soulieres3 and C. Jacques2, (1)University of Montreal, Montreal, QC, 5 Armstrong , (1)Ezra Medical Center, Brooklyn, NY, (2)Queens College, Canada, (2)University of Quebec in Outaouais, Gatineau, QC, Canada, Queens, NY, (3)Columbia University, Manhattan, NY, (4)Autism (3)Département de Psychologie, Université du Québec à Montréal, Spectrum Diagnostics and Consulting, Doylestown, PA, (5)La Salle Montréal, QC, Canada University, Philadelphia, PA 422.069 Vaccine Hesitancy and Beliefs about Causes of Children’s 422.061 The Factors Predicting Poor Mental and Physical Health in Developmental Disorders Among Parents of Children Awaiting Parents of Children with Autism Spectrum Disorder (ASD): Data from Developmental/Behavioral Evaluation R. P. Goin-Kochel1,2, K. L. 1 2016 -2018 National Survey of Children’s Health (NSCH) J. Lee and B. Ahmed1, J. H. Smith1,2, J. Cervantes1,2, D. Godwin1,2, L. N. Berry1,2 and 2 Barger , (1)School of Nursing, Georgia State University, Atlanta, GA, (2) R. H. Fein1,2, (1)Baylor College of Medicine, Houston, TX, (2)Texas Georgia State University, Atlanta, GA Children’s Hospital, Houston, TX

422.062 The Impact of Uncertainty on the Everyday Lives of Autistic 422.070 Websites: Supports for Autistics and Their Families during 1 1 2 Children and Their Families J. Goodwin , P. Rob , M. Freeston , D. the COVID-19 Pandemic W. Mitchell1, R. Zulla2, D. B. Nicholas3, E. 3 3 1 4 5 Garland , V. Grahame , A. Kernohan , M. Labus , M. R. Osborne , J. Onofrychuk3 and S. Samborn1, (1)University of Calgary, Calgary, AB, 6 7 6 R. Parr , C. Wright and J. Rodgers , (1)Population Health Sciences Canada, (2)School of Public Health, University of Alberta, Edmonton, AB, Institute, Newcastle University, Newcastle Upon Tyne, United Kingdom, Canada, (3)University of Calgary, Edmonton, AB, Canada (2)Newcastle University, Newcastle Upon Tyne, United Kingdom, (3) Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, 422.071 What Happens after the Coach Leaves? Examining the Newcastle upon Tyne, United Kingdom, (4)Research and Enterprise Changes in Parenting Stress in Caregivers of Toddlers with ASD before Services, Faculty of Medical Sciences, Newcastle University, Newcastle and after the Withdrawal of Clinical Support L. M. Chiang1, W. I. Shih2, Upon Tyne, United Kingdom, (5)South Tyneside’s Kids And Young A. Gulsrud1 and C. Kasari2, (1)UCLA Semel Institute for Neuroscience Adults Klub - Special needs support group (KAYAKS), South Shields, & Human Behavior, Los Angeles, CA, (2)University of California, Los United Kingdom, (6)Population Health Sciences Institute, Newcastle Angeles, Los Angeles, CA University, Newcastle upon Tyne, United Kingdom, (7)Child and Adolescent Mental Health Service, Northumbria Healthcare NHS Foundation Trust, North Shields, United Kingdom

422.063 The Mental Health of Young People with ASD during the COVID-19 Pandemic: Data from the QUEST Cohort S. Chandler1, I. Yorke1, V. Carter Leno1, M. Palmer1, T. Charman2 and E. Simonoff1, (1)King’s College London, Institute of Psychiatry, Psychology and Neuroscience, London, United Kingdom, (2)Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom

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422.072 When Should You Tell Your Child They Are Autistic? 423.004 Genetic Liability to Autism and Inflammatory Bowel Disease: Insights from a Participatory Study with Autistic University Students B. Is There Evidence for a Shared Genetic Aetiology? A. Sadik1, C. Kofner1, T. Oredipe2, A. Riccio3, E. Cage4, S. K. Kapp5, P. Dwyer6, J. Dardani2, P. Pagoni3, E. Stergiakouli3, R. Gardner4, G. Davey Smith5, S. Vincent7, J. Delos Santos8 and K. Gillespie-Lynch9, (1)CUNY, NY, NY, Sullivan2, S. Zammit6, G. M. Khandaker7, H. J. Jones2 and D. Rai2, (1) (2)College of Staten Island, CUNY, Staten Island, NY, (3)Department of Avon and Wiltshire Mental Health Partnership NHS Trust, Bath, United Psychology, The Graduate Center, City University of New York (CUNY), Kingdom, (2)Population Health Sciences, Bristol Medical School, Centre New York, NY, (4)Department of Psychology, University of Stirling, for Academic Mental Health, Bristol, United Kingdom, (3)MRC Integrative Stirling, United Kingdom, (5)Department of Psychology, University of Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, Portsmouth, Portsmouth, United Kingdom, (6)Department of Psychology, United Kingdom, (4)Karolinska Institutet, Stockholm, Sweden, (5) University of California, Davis, Davis, CA, (7)York St. John University, Population Health Sciences, Bristol Medical School, MRC Integrative York, United Kingdom, (8)Hunter College, City University of New York, Epidemiology Unit, Bristol, United Kingdom, (6)Division of Psychological New York, NY, (9)Department of Psychology, College of Staten Island; Medicine and Clinical Neurosciences,Cardiff University, Cardiff, United CUNY Graduate Center, Brooklyn, NY Kingdom, (7)University of Cambridge, Cambridge, United Kingdom

422.073 Who Knows You Best: Adult Self-Report Vs. Sibling Report 423.005 Happloinsufficiency of CHD8 Leads to Distinctive Vs. Parent Report O. Ward, S. R. Dufresne and E. T. Crehan, Eliot- Gastrointestinal Deficits and Gut-Brain Axis Abnormalities I. Chaterjee, Pearson Department of Child Study & Human Development, Tufts D. Getselter and E. Elliott, Medicine, Bar Ilan University, Safed, Israel University, Medford, MA 423.007 Mapping the Mucosal Microbiome in Gastrointestinal 422.074 Young Adult and Caregiver Perspectives on Emerging Biopsy Specimens from Children with ASD: A Pilot Study K. Reeves1, Adulthood in Autism Spectrum Disorder E. B. Clarke, R. Elias and C. A. Krigsman2 and S. J. Walker3, (1)Int Med-Molecular Medicine, Wake Lord, University of California, Los Angeles, Los Angeles, CA Forest University Health Sciences, Winston Salem, NC, (2)Pediatric Gastroenterology Resources of New York and Texas, Austin, TX, (3) 422.075 “Increasing Awareness of Regional Center Services for Wake Forest Institute for Regenerative Medicine, Winston Salem, NC Autism Spectrum Disorders in the African American Community: A Faith-Based, Community-Partnered Participatory Research (CPPR) 423.008 Molecular Co-Expression Analysis Identifies Dysregulated Approach” F. Jones1, A. Lucas-Wright2, G. A. Green3, H. Owens4, A. Ion Transport As a Potential Mechanism for Right-Sided Colonic Jones5, Z. Masongsong6 and O. Solomon7, (1)Healthy African American Hypomotility in Children with Autism R. Kumar1, A. Krigsman2, E. Families, Los Angeles, CA, (2)Charles R. Drew University of Medicine Koukos1, T. Simon1 and S. J. Walker1, (1)Wake Forest Institute and Science, Los Angeles, CA, (3)UCLA Department of AA Studies, for Regenerative Medicine, Winston Salem, NC, (2)Pediatric EASE Project team/ARCS Project/ UCEDD Children’s Hosptial LA, Gastroenterology Resources of New York and Texas, Austin, TX LOS ANGELES, CA, (4)CHILDREN’S HOSPITAL LOS ANGELES, LOS ANGELES, CA, (5)Suite 105 4305 Degnan Blvd, HEALTHY AFRICAN 423.009 Prevalence of Gastrointestinal Symptoms Among Individuals AMERICAN FAMILIES, Los Angeles, CA, (6)Healthy African American with ASD, with and without Co-Occurring Intellectual Disability C. B. 1,2,3 1,4 1,4 1,4 1,2,3 Families, II, LOS ANGELES, CA, (7)University of Southern California, Holingue , P. Danika , R. Reetzke , J. S. Hong , L. Kalb and R. 1,4 Los Angeles, CA Landa , (1)Center for Autism and Related Disorders, Kennedy Krieger Institute, Baltimore, MD, (2)Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, (3)Department of Neuropsychology, Kennedy Krieger Institute, Baltimore, MD, (4) Poster Session Department of Psychiatry and Behavioral Sciences, Johns Hopkins Poster 423 - Gastrointestinal (GI) University School of Medicine, Baltimore, MD

423.011 Study of the Gut Microbiome Profile in Children with 423.001 Altered Gut Microbiota in Youth with Autism Spectrum Autism Spectrum Disorder and Their Unaffected Siblings. S. S. F. Gau, Disorder Associated with the Severity of Social Deficits and Executive Department of Psychiatry, National Taiwan University Hospital & College Dysfunctions. Y. C. Chen, Graduate Institute of Clinical Medicine, of Medicine, Taipei, Taiwan College of Medicine, National Taiwan University, Taipei, Taiwan 423.012 The Directional Relationship between Internalizing 423.003 Comparative Analysis of Gut Microbiota between Children Symptoms and Gastrointestinal Problems in Autism Spectrum Disorder with Autism Spectrum Disorder and Typically Developing Children: K. Gynegrowski, Marist, Poughkeepsie, NY A PCR and Metagenomic Approach S. Gulati1, S. V. Aparna2, H. M. Rashmi3, V. Sondhi4 and S. Grover3, (1)Centre of Excellence and Advanced Research for Childhood Neurodevelopmental Disorders, Child Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India, (2)College of Dairy Science and Technology Kerala Veterinary and Animal Science University,, Thrissur, Kerala, India, India, (3)Dairy Microbiology Division, ICAR- National Dairy Research Institute,, Karnal, Haryana, India, India, (4)Child Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, New Delhi, India

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Poster Session 425.003 A Lost Year? Art, Creativity and Strengths in Autism during covid19 Lockdown. C. D’Agostino1, L. Echenique2, N. Galetta3, N. Poster 424 - Immunology Santamaria4, V. De Chiara5 and A. Larroulet6, (1)Universidad Caece, Mujeres TEA, Yoenfoco, Buenos Aires, Argentina, (2)Grupo Cidep, 424.001 Inflammatory Pathways to Autism: Exploring Causality within Mujeres TEA, Buenos Aires, Argentina, (3)Private practice, Buenos 1 a Two-Sample Mendelian Randomization Framework C. Dardani , Aires, Argentina, (4)Motivatea, Buenos Aires, Argentina, (5)CTA, Buenos 2 3 2 2 2 J. Robinson , A. Sadik , P. Pagoni , J. Zheng , E. Stergiakouli , R. Aires, Argentina, (6)Socializarte, Buenos Aires, Argentina Gardner4, J. Grove5, T. iPSYCH ASD Working Group6, G. Davey Smith7, S. Sullivan1, B. Leppert7, H. J. Jones1, S. Zammit8, G. M. Khandaker9 and 425.004 A Mixed-Method Evaluation of Feasibility, Acceptability and D. Rai1, (1)Population Health Sciences, Bristol Medical School, Centre Initial Efficacy of the Who- Caregivers Skills Training (CST) Pilot in India. for Academic Mental Health, Bristol, United Kingdom, (2)MRC Integrative K. Sengupta1, S. Ghosh2, D. Sanghvi3, S. Mahadik3 and T. W. CST Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, Team4, (1)Ummeed Child Development Center, Mumbai, Maharashtra, United Kingdom, (3)Avon and Wiltshire Mental Health Partnership INDIA, (2)Research Insights and Innovation, Population Health & Safety, NHS Trust, Bath, United Kingdom, (4)Karolinska Institutet, Stockholm, Seattle, WA, (3)Ummeed Child Development Center, Mumbai, India, Sweden, (5)Aarhus University, Aarhus, Denmark, (6)Denmark, (7) (4)Department of Mental Health and Substance Abuse, World Health Population Health Sciences, Bristol Medical School, MRC Integrative Organization, Geneva, Switzerland Epidemiology Unit, Bristol, United Kingdom, (8)Division of Psychological Medicine and Clinical Neurosciences,Cardiff University, Cardiff, United 425.005 Adaptation of a Parent Mediated Communication Intervention Kingdom, (9)University of Cambridge, Cambridge, United Kingdom for Autism for Virtual Delivery in Response to the Pandemic Lockdown, in New Delhi, India S. Lakhera1, S. Guha Roy1, L. Naithani1, P. Sangwan1, 424.002 Prevalence of Celiac Disease in a Large Cohort of Italian Z. Azar1, S. Menon1, V. Patel2, V. Vajaratkar1, C. A. Taylor3, J. Green4 Children with Autism Spectrum Disorders M. Prosperi1,2, E. Brunori1, and G. Divan5, (1)Sangath, New Delhi, India, (2)Department of Global A. Cosenza1, R. Tancredi3, F. Muratori1,2 and S. Calderoni1,2, (1)IRCCS Health and Social Medicine, Harvard Medical School, Boston, MA, (3) Fondazione Stella Maris, Calambrone (Pisa), Italy, (2)Department of University of Manchester, Manchester, United Kingdom, (4)University of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy, (3) Manchester, Manchester, United Kingdom of Great Britain and Northern IRCCS Stella Maris Foundation, Pisa, Italy Ireland, (5)Child Development Group, Sangath, New Delhi, India

424.003 Serological Test for Maternal Autoantibody Related Autism 425.006 Assessing Autism Knowledge and Stigma across the Global A. Ramirez-Celis1, M. Becker2, M. Nuño1, J. Schauer3, N. Aghaeepour2 Landscape Using the ASK-Q A. J. Harrison1, A. de Bildt2, L. Yu3, N. and J. Van de Water3, (1)UC Davis, Davis, CA, (2)Stanford University, Naqvi4, A. K. Smit5, H. Low6, C. Yang7 and S. Saade8, (1)Educational Stanford, CA, (3)MIND Institute, University of California, Davis, Davis, Psychology, University of Georgia, Athens, GA, (2)Department of Child CA and Adolescent Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, Netherlands, (3)School of Psychology, South China Normal University, Guangzhou, China, (4)Iona Poster Session College, New Rochelle, NY, (5)Accare Child and Adolescent Psychiatry or University of Groningen, Groningen, Netherlands, (6)Universiti Sains Poster 425 - International and Cross-Cultural Malaysia, Penang, Malaysia, (7)East China Normal University, Shanghai, Perspectives China, (8)Psychology, Université du Québec à Montréal, Montreal, QC, Canada 425.001 “I Was Confused... and Still Am” Barriers Impacting the 425.007 Autistic Identity and the Experience of Disability: Related Help-Seeking Pathway for an Autism Diagnosis in Urban North India - a Concepts with Various Meanings I. Courcy1, N. Jeanneret2, V. Caron3, Mixed Methods Study S. Bhavnani1, G. Lockwood Estrin2, R. Arora1, D. A. M. Nader4, M. Giroux5, L. Guerrero5, M. Ouimet6, B. Forgeot d’Arc4 Kumar3, M. Kakra3, M. Juneja4, S. Gulati5, V. Patel6 and G. Divan1, (1) and I. Soulieres3, (1)Département de Sociologie, Université du Québec à Child Development Group, Sangath, New Delhi, India, (2)Centre for Brain Montréal, Montréal, QC, Canada, (2)CIUSSS Nord-de-l’Île-de-Montréal, and Cognitive Development, Birkbeck University of London, London, Montréal, QC, Canada, (3)Département de Psychologie, Université United Kingdom, (3)Sangath, New Delhi, India, (4)Maulana Azad Medical du Québec à Montréal, Montréal, QC, Canada, (4)Département College, New Delhi, India, (5)Centre of Excellence and Advanced de Psychiatrie, Université de Montréal, Montréal, QC, Canada, (5) Research for Childhood Neurodevelopmental Disorders, Child Neurology Aut’Créatifs, Montréal, QC, Canada, (6)Neurodiversité, Montréal, QC, Division, Department of Pediatrics, All India Institute of Medical Sciences, Canada New Delhi, India, (6)Department of Global Health and Social Medicine, Harvard Medical School, Boston, MA 425.008 Behavioral Treatment and Response Intervention Received By Children with Autism in Ethiopia W. A. Zeleke, Counseling, 425.002 A Comparison of Parenting Stress and Resilience in Parents Psychology and Special Education, Duquesne University, Pittsburgh, PA of Children with Autism between India and the UK: A Qualitative Analysis F. M. Kodakkadan1, E. M. Lee2, J. Lambie2 and S. D. Stagg1, (1)Anglia 425.010 Characterizing the Diagnosis and Service Odyssey in Texas: Ruskin University, Cambridge, United Kingdom, (2)School of Psychology Results from a Needs Assessment Survey S. Vanegas1, S. Magaña2 and and Sport Science, Anglia Ruskin University, Cambridge, United W. Zeng2, (1)School of Social Work, Texas State University, San Marcos, Kingdom TX, (2)Steve Hicks School of Social Work, University of Texas at Austin, Austin, TX

425.011 Comparison of Familial and General Public’ Autism Knowledge and Stigma: Building Family Foundation for Autism Advocacy in China B. Lai, X. Mao, X. Chen and L. Yu, School of Psychology, South China Normal University, Guangzhou, China

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425.012 Cross-Cultural Adaptation and Psychometric Properties of 425.018 Does the Desire to Dominate People and Nature Contribute Participatory Autism Stigma and Knowledge Scales for Use in Brazil to Cross-Cultural Variations in Autism Stigma? K. Gillespie-Lynch1, A. Gabriela Rocha Araujo1, R. Zanon2, M. Aparecida da Silva1 and K. B. Bockstal Fieulaine2, S. Saade3, E. Cappe4, N. Daou5, B. Kofner6, Gillespie-Lynch3, (1)Federal University of São João del-Rei, São João R. Obeid7, G. Y. H. Lam8 and J. MacCormack9, (1)Department of del-Rei, Brazil, (2)Federal University of Rio Grande do Sul, Porto Alegre, Psychology, College of Staten Island; CUNY Graduate Center, Brooklyn, Brazil, (3)Department of Psychology, College of Staten Island; CUNY NY, (2)Département de Psychologie, Université Reims Champagne Graduate Center, Brooklyn, NY Ardenne, Reims, France, (3)Psychology, Université du Québec à Montréal, Montreal, QC, Canada, (4)Université de Paris, Boulogne- 425.013 Cross-Cultural Adaptation of Routine Autism and Billancourt, France, (5)McNeese State University, Lake Charles, LA, (6) Developmental Scoring Measures: A Feasibility Study from a South- CUNY, NY, NY, (7)Department of Psychological Sciences, Case Western 1 2 3 3 African Cohort P. E. Springer , E. Loth , M. Potter , W. L. Mackay , P. Reserve University, New York, NY, (8)Department of Educational and 3 4 2 Smit , H. J. Odendaal and D. Murphy , (1)Department of Paediatrics Psychological Studies, University of South Florida, Tampa, FL, (9) and Child Health, Stellenbosch University, Cape Town, South Africa, (2) University of Lethbridge, Lethbridge, AB, Canada Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, 425.019 Effects of Internet-Based Online Modules on Behavioral London, United Kingdom, (3)Stellenbosch University, Cape Town, South Principles for Parents of Children with ASD J. D. Lee1 and H. Meadan2, Africa, (4)Department of Obstetrics and Gynaecology, Stellenbosch (1)Special Education, University of Illinois, Champaign, IL, (2)University University, Cape Town, South Africa of Illinois, Champaign, IL 61820, IL

425.014 Determining Future Directions for Parent Education & 425.020 Evaluation of the Program Parents Taking Action for Parents Training Programmes in Autism Spectrum Disorder J. J. S. Dawson- of Pre/Adolescents with Autism Spectrum Disorder in Colombia M. Squibb1 and P. J. de Vries2, (1)Division of Child & Adolescent Garcia1 and F. Balcazar2, (1)UIC, Chicago, IL, (2)University of Illinois at Psychiatry, University of Cape Town, Cape Town, South Africa, (2) Chicago, Chicago, IL Centre for Autism Research in Africa, Division of Child & Adolescent Psychiatry, University of Cape Town, Cape Town, South Africa 425.021 Examining Beliefs about the Causes of Autism in Kenya: What Have People Been Told and What Do They Personally Believe? 425.015 Developing a Cost of Illness Inventory Questionnaire for C. Messina1, L. Chen2, J. Mathaga3, J. Muiruri4, N. Daou5, D. S. Smith6 Children with Autism in India D. Chaudhary1, G. Shields2, B. Bhat3, and K. Gillespie-Lynch7, (1)Emory University, Atlanta, GA, (2)College of T. Verghis3, R. Roy1, D. Kumar1, M. Kakra1, V. Vajaratkar1, G. Lall1, S. Staten Island, Staten Island, NY, (3)Arthur’s Dream Autism Trust (ADAT Pandey1, S. Johri1, S. Gulati4, M. Juneja5, J. Green6, L. Davies2 and Foundation), Nairobi, Kenya, (4)Kenya Autism Alliance, Nairobi, Kenya, G. Divan7, (1)Sangath, New Delhi, India, (2)University of Manchester, (5)McNeese State University, Lake Charles, LA, (6)College of Staten Manchester, United Kingdom, (3)Sangath, Goa, India, (4)Centre of Island, CUNY, Staten Island, NY, (7)Department of Psychology, College Excellence and Advanced Research for Childhood Neurodevelopmental of Staten Island; CUNY Graduate Center, Brooklyn, NY Disorders, Child Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India, (5)Maulana Azad Medical 425.022 Experiences, Opportunities and Challenges of Autistic College, New Delhi, India, (6)University of Manchester, Manchester, Students in Higher Education in Singapore: A Qualitative Analysis E. 1 1 2 United Kingdom of Great Britain and Northern Ireland, (7)Child Lim , S. Wong and I. Magiati , (1)National University of Singapore, Development Group, Sangath, New Delhi, India Singapore, Singapore, (2)Dept. of Psychology, National University of Singapore, Singapore, Singapore 425.016 Development of Attention Control in Autism: Results from a Community-Based Project in Delhi, India G. Lockwood Estrin1, L. 425.023 Exploring the Use of the ASK-Q As a Baseline and Outcome Mason2, R. Arora3, S. Bhavnani3, J. Dasgupta3, G. Divan3, S. Gulati4, V. Measure in Face to Face and Virtual (mobile phone) Autism Knowledge 1 1 1 2 Patel5, T. Gliga1 and M. H. Johnson2, (1)Centre for Brain and Cognitive Trainings in Tanzania N. Naqvi , M. Ricci , L. Konak and A. Martinage , Development, Birkbeck University of London, London, United Kingdom, (1)Iona College, New Rochelle, NY, (2)OMPACO, Lexington, MA (2)Centre for Brain and Cognitive Development, Birkbeck, University 425.024 From Engagement to Competency: Making Disability Naïve of London, London, United Kingdom, (3)Child Development Group, Frontline Health Workers Competent to Deliver an Evidence Based Sangath, New Delhi, India, (4)Centre of Excellence and Advanced Autism Intervention in New Delhi, India L. Naithani1, P. Sangwan1, S. Research for Childhood Neurodevelopmental Disorders, Child Neurology Guha Roy1, S. Lakhera1, Z. Azar1, S. Menon1, D. Kumar1, M. Kakra1, Division, Department of Pediatrics, All India Institute of Medical Sciences, G. Lall1, S. Pandey1, S. Johri1, R. Roy1, V. Vajaratkar1, C. A. Taylor2, New Delhi, India, (5)Department of Global Health and Social Medicine, V. Patel3, J. Green4 and G. Divan5, (1)Sangath, New Delhi, India, (2) Harvard Medical School, Boston, MA University of Manchester, Manchester, United Kingdom, (3)Department 425.017 Diagnostic Process and Barriers Among Asian American of Global Health and Social Medicine, Harvard Medical School, Boston, Parents of Children with Autism and Other Developmental Disabilities MA, (4)University of Manchester, Manchester, United Kingdom of Great I. Kim1, S. Dababnah2 and Y. Wang3, (1)School of Social Work, Tulane Britain and Northern Ireland, (5)Child Development Group, Sangath, New University, New Orleans, LA, (2)University of Maryland, Baltimore, Delhi, India Baltimore, MD, (3)Social of Social Work, University of Maryland, Baltimore, Baltimore, MD

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425.026 Impact of COVID-19 and Lockdown on People with ASD and 425.031 Inland Southern California: A Service Desert for Individuals Their Families in Latin America D. Valdez1, C. Nava2, A. Rattazzi3, S. H. with Autism Spectrum Disorder (ASD) and Their Families: Descriptive Cukier3, N. Barrios4, C. S. Paula5, A. Rosoli6, G. Perez Liz7, R. A. Garcia8 Analyses of Unmet Service Needs M. R. Ledoux1, A. Losh2, E. and G. Garrido9, (1)Universidad de Buenos Aires- FLACSO, Buenos Veytsman2 and J. Blacher1, (1)Graduate School of Education, University Aires, Argentina, (2)Psychological Science, University of Texas Rio of California, Riverside, Riverside, CA, (2)Graduate School of Education, Grande Valley, Edinburg, TX, (3)PANAACEA, Buenos Aires, Argentina, University of California Riverside, Riverside, CA (4)Fleni, Capital Federal, ARGENTINA, (5)Developmental Disorder Program, Universidade Presbiteriana Mackenzie, São Paulo, Brazil, 425.032 Knowledge of Evidence-Based Practices in Chinese Parents 1 2 3 1 (6)Projects, Organizacion Estados Iberoamericanos, Santo Domingo, of Individuals with ASD M. Y. S. Bak , Y. Yang , M. L. Hugh , A. Reilly 4 Dominican Republic, (7)A.J. Drexel Autism Institute, Drexel University, and H. Abas , (1)Educational Psychology, University of Minnesota, Philadelphia, PA, (8)Clínica Las Condes, Santiago, Chile., Santiago, Minneapolis, MN, (2)School of Education Science, Lingnan Normal CHILE, (9)Universidad de la República, Montevideo, Uruguay University, Zhanjiang, China, (3)Psychiatry & Behavioral Sciences, University of Washington, Seattle, WA, (4)College of Liberal Arts, 425.027 Impact of COVID-19 on Children with Autism and Parents: University of Minnesota, Minneapolis, MN A Preliminary Investigation into a School Sample in Mainland China L. Sun1, X. Cao2, M. Li2, R. Chen3 and H. Schertz1, (1)Indiana University, 425.033 Learning from Autistic People How to Assess and Reduce 1 2 3 Bloomington, IN, (2)Renyu School for Children with Special Needs, Autism Stigma K. Gillespie-Lynch , S. Saade , R. Obeid , J. Bailey 4 5 6 7 8 Fujian, China, (3)School of Labor and Human Resources, Renmin Bisson , B. Kofner , N. Tricarico , A. J. Harrison , N. Daou and W. 6 University of China, Bejing, China Pinkava , (1)Department of Psychology, College of Staten Island; CUNY Graduate Center, Brooklyn, NY, (2)Psychology, Université du Québec 425.028 Impact of Lockdown Due to COVID-19 on People with à Montréal, Montreal, QC, Canada, (3)Department of Psychological ASD and Their Families in Argentina. C. Montiel-Nava1, D. Valdez2, Sciences, Case Western Reserve University, New York, NY, (4)Clemson A. Wilches3, A. Rattazzi4, S. H. Cukier4, N. Barrios5, G. Garrido6, C. S. University, Clemson, SC, (5)CUNY, NY, NY, (6)College of Staten Paula7, A. Rosoli8, G. Perez Liz9, R. A. Garcia10 and M. Nunez11, (1) Island, City University of New York, Staten Island, NY, (7)Educational La Universidad del Zulia, Gainesville, GA, (2)Universidad de Buenos Psychology, University of Georgia, Athens, GA, (8)McNeese State Aires- FLACSO, Buenos Aires, Argentina, (3)FLACSO, Buenos Aires, University, Lake Charles, LA Argentina, (4)PANAACEA, Buenos Aires, Argentina, (5)Fleni, Capital Federal, ARGENTINA, (6)Universidad de la República, Montevideo, 425.034 Mealtime Behaviors and Parents Strategies in Children with Uruguay, (7)Developmental Disorder Program, Universidade Autism Spectrum Disorders S. Suswaram, Speech Language Hearing: Presbiteriana Mackenzie, São Paulo, Brazil, (8)Projects, Organizacion Sciences and Disorders, University of Kansas, Lawrence, KS Estados Iberoamericanos, Santo Domingo, Dominican Republic, (9) 425.035 Mental Health and Social Support of Caregivers of Children A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA, (10) and Adolescents with ASD and Other Developmental Disorders during Clínica Las Condes, Santiago, Chile., Santiago, CHILE, (11)Faculty of COVID-19 Pandemic C. Wang, Department of Social Psychology, Psychology, Universidad Autonoma de Madrid, Madrid, Spain Nankai University, Tianjin, China 425.029 Impact of Lockdown Due to COVID-19 on People with 425.036 Parental Perceptions of Children’s Autistic Traits in British ASD and Their Families in Peru. S. Manrique1, D. Valdez2, A. Rattazzi3, and Minority Egyptian/Sudanese Communities in the UK E. Genovesi, G. Garrido4, S. H. Cukier3, N. Barrios5, A. Rosoli6, C. S. Paula7, R. A. P. Ullmer, L. Bhatti, P. Meyer, P. Memon, D. Panchani, M. Rafla, Garcia8, G. Perez Liz9 and C. Nava10, (1)CPAL. Peru., Lima, Peru, (2) M. Welford, B. Tekola Gebru and R. A. Hoekstra, Department of Universidad de Buenos Aires- FLACSO, Buenos Aires, Argentina, (3) Psychology, King’s College London, London, United Kingdom PANAACEA, Buenos Aires, Argentina, (4)Universidad de la República, Montevideo, Uruguay, (5)Fleni, Capital Federal, ARGENTINA, (6) 425.037 Parental Perspectives on the Impact of COVID-19 on Their Projects, Organizacion Estados Iberoamericanos, Santo Domingo, Young Children with Autism Spectrum Disorder and Themselves - a Dominican Republic, (7)Developmental Disorder Program, Universidade Preliminary Study from India D. Nair1, P. Vaidhyanathan2, S. Nagesh1, Presbiteriana Mackenzie, São Paulo, Brazil, (8)Clínica Las Condes, N. Dadlani2, D. Swaminathan2 and S. S. Meera2, (1)Latika Roy Santiago, Chile., Santiago, CHILE, (9)A.J. Drexel Autism Institute, Drexel Foundation, Dehradun, India, (2)National Institute of Mental Health and University, Philadelphia, PA, (10)Psychological Science, University of Neurosciences, Bangalore, India Texas Rio Grande Valley, Edinburg, TX 425.038 Pilot Study to Improve Access to Early Intervention for 425.030 Impact of the COVID-19 Lockdown in Malaysia: An Autism in Africa L. Franz1, M. Viljoen2, N. Shabalala2, N. Seris2, M. Examination of the Psychological Wellbeing of Parent-Child Dyads and Ndlovu2, A. Reider3, E. L. Turner4, R. Simmons4 and P. J. de Vries2, Child Behaviour in Families with and without Children on the Autism (1)Duke Center for Autism and Brain Development, Department of 1 2 2 3 4 Spectrum H. X. Fong , K. Cornish , H. Kirk , K. Ilias , M. F. Shaikh and Psychiatry and Behavioral Sciences, Duke University, Durham, NC, (2) 1,4 K. J. Golden , (1)Department of Psychology, Jeffrey Cheah School of Centre for Autism Research in Africa, Division of Child & Adolescent Medicine and Health Sciences, Monash University Malaysia, Bandar Psychiatry, University of Cape Town, Cape Town, South Africa, (3)Duke Sunway, Malaysia, (2)Turner Institute for Brain and Mental Health, Global Health Institute, Duke University, Durham, NC, (4)Department of School of Psychological Sciences, Monash University, Melbourne, VIC, Biostatistics and Bioinformatics, Duke University, Durham, NC Australia, (3)Department of Basic Sciences, Faculty of Health Sciences, Universiti Teknologi MARA, Puncak Alam, Selangor, Malaysia, (4) Neuropharmacology Research Strength, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, Malaysia

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425.039 Predictors of Parenting Stress in Malaysian Mothers and 425.044 The Impact of the Lockdown Due to COVID-19 on ASD Fathers with and without Children on the Autism Spectrum: Parental People in Argentina: A First Person Point of View. M. Nunez1, D. Sleep and Depression, Family Functioning, and Child Autism Symptoms Valdez2, A. Wilches3, A. Rattazzi4, S. H. Cukier4, N. Barrios5, C. S. and Behavioral Concerns K. J. Golden1,2,3, K. Ilias2,4, M. Park2,5 and K. Paula6, G. Garrido7, A. Rosoli8, G. Perez Liz9, R. A. Garcia10 and Cornish6, (1)Neuropharmacology Research Strength, Jeffrey Cheah C. Nava11, (1)Faculty of Psychology, Universidad Autonoma de School of Medicine and Health Sciences, Monash University Malaysia, Madrid, Madrid, Spain, (2)Universidad de Buenos Aires- FLACSO, Bandar Sunway, Malaysia, (2)Department of Psychology, Jeffrey Cheah Buenos Aires, Argentina, (3)FLACSO, Buenos Aires, Argentina, (4) School of Medicine and Health Sciences, Monash University Malaysia, PANAACEA, Buenos Aires, Argentina, (5)Fleni, Capital Federal, Bandar Sunway, Malaysia, (3)Global Asia in the 21st Century (GA21), ARGENTINA, (6)Developmental Disorder Program, Universidade Monash University Malaysia, Bandar Sunway, Malaysia, (4)Department Presbiteriana Mackenzie, São Paulo, Brazil, (7)Universidad de la of Basic Sciences, Faculty of Health Sciences, Universiti Teknologi República, Montevideo, Uruguay, (8)Projects, Organizacion Estados MARA, Puncak Alam, Selangor, Malaysia, (5)Department of Psychology, Iberoamericanos, Santo Domingo, Dominican Republic, (9)A.J. Drexel School of Social Sciences, Nottingham Trent University, Nottingham, Autism Institute, Drexel University, Philadelphia, PA, (10)Clínica Las United Kingdom, (6)Turner Institute for Brain and Mental Health, School Condes, Santiago, Chile., Santiago, CHILE, (11)Psychological Science, of Psychological Sciences, Monash University, Melbourne, VIC, Australia University of Texas Rio Grande Valley, Edinburg, TX

425.040 Socio-Economic Profiles in a Large European Multinational 425.045 The Importance of Socio-Cultural Context on the Quality of Autism Study T. Del Bianco1, G. Lockwood Estrin1, L. Mason2, J. Life of Autistic Adults: A Comparison between France and Quebec V. Tillmann3, T. Charman4, E. Loth5, J. K. Buitelaar6, D. Murphy5, M. Caron1, N. Jeanneret2,3, M. Giroux4, L. Guerrero4, M. Ouimet5, B. Forgeot Johnson7, E. J. Jones2 and L. G. EU-AIMS8, (1)Centre for Brain and d’Arc6, I. Soulieres1 and I. Courcy3, (1)Département de Psychologie, Cognitive Development, Birkbeck University of London, London, United Université du Québec à Montréal, Montréal, QC, Canada, (2)CIUSSS Kingdom, (2)Centre for Brain and Cognitive Development, Birkbeck, Nord-de-l’Île-de-Montréal, Montréal, QC, Canada, (3)Département de University of London, London, United Kingdom, (3)Institute of Psychiatry, Sociologie, Université du Québec à Montréal, Montréal, QC, Canada, Psychology and Neuroscience, King’s College London, London, (4)Aut’Créatifs, Montréal, QC, Canada, (5)Neurodiversité, Montréal, United Kingdom, (4)Department of Psychology, Institute of Psychiatry, QC, Canada, (6)Département de Psychiatrie, Université de Montréal, Psychology and Neuroscience, King’s College London, London, Montréal, QC, CANADA United Kingdom, (5)Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom, (6)Department of Cognitive Poster Session Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, Poster 426 - Interventions - Non-pharmacologic - Infant, (7)Department of Psychology, University of Cambridge, Cambridge, Toddler, and Preschool United Kingdom, (8)EU-AIMS Organization, London, United Kingdom 426.001 1-2-3. First Play, Second Engage, Third Communicate: A 425.041 The Bamboo Ceiling: A Preliminary Exploration of Autism Potential Sequential Mediation Model for Preschoolers with ASD W. Spectrum Condition in AAPI Girls K. G. Tena1, M. L. Cola1, A. S. I. Shih1, Y. C. Chang2, S. Y. Shire3 and C. Kasari1, (1)University of Russell1, V. Petrulla2 and J. Parish-Morris1, (1)Center for Autism California, Los Angeles, Los Angeles, CA, (2)Special Education and Research, Children’s Hospital of Philadelphia, Philadelphia, PA, (2) Counseling, California State University, Los Angeles, Los Angeles, CA, Florida International University, Miami, FL (3)University of Oregon, Eugene, OR 425.042 The COVID 19 Crisis and the Support of the Program 426.002 A Comparison of Change Trajectories in Parent Sensitivity Parents Taking Action for Parents of Pre/Adolescents with Autism and Responsivity across Different Intervention Approaches S. F. Spectrum Disorder in Colombia M. Garcia1 and F. Balcazar2, (1)UIC, Vejnoska1, A. C. Stahmer1, P. Yoder2, A. M. Estes3 and S. J. Rogers4, Chicago, IL, (2)University of Illinois at Chicago, Chicago, IL (1)UC Davis MIND Institute, University of California, Davis, Sacramento, 425.043 The First Years Inventory for Spain: An Linguistic and CA, (2)Department of Special Education, Vanderbilt University, Nashville, Conceptual Analysis of Translation Methods R. Palomo1, R. Campos2, TN, (3)Speech and Hearing Sciences, University of Washington, Seattle, M. DuBay3, M. Zamora4, A. Watkins5, P. Melero6 and C. Nieto2, (1) WA, (4)Psychiatry and Behavioral Sciences, University of California Universidad Complutense de Madrid, Madrid, Spain, (2)Department of MIND Institute, Sacramento, CA Basic Psychology, Universidad Autónoma de Madrid, Madrid, Spain, (3) 426.003 A Nimble Model of Care: Adapting the Social ABCs Parent- University of North Carolina, Chapel Hill, NC, (4)Autismo Sevilla, Sevilla, Mediated Toddler Intervention for Group-Based and Virtual Delivery J. Spain, (5)Abbeywood Community School, Bristol, United Kingdom, (6) A. Brian1, I. M. Smith2, L. Zwaigenbaum3, A. Solish1, K. Bernardi4, I. Valencia Montessori School, Valencia, Spain Roth5, S. Daoud6, E. M. Dowds7, S. Jilderda8, S. Macwilliam9, K. Perry1 and S. E. Bryson10, (1)Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada, (2)Dalhousie University / IWK Health Centre, Halifax, NS, CANADA, (3)University of Alberta, Edmonton, AB, Canada, (4)Holland Bloorview Kids Rehab, Toronto, ON, Canada, (5)Autism Research Centre, Holland Bloorview Kids Rehab, Toronto, ON, Canada, (6)Holland Bloorview, Toronto, ON, Canada, (7)Autism Research Centre, Holland Bloorview Kids Rehabilitation Hospital-Autism Research Centre, Burlington, ON, Canada, (8)Autism Research Centre, Sickkids Hospital for Sick Children, Toronto, ON, Canada, (9)IWK HEALTH CENTRE, HALIFAX, NS, CANADA, (10)Dalhousie University, Halifax, NS, Canada

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426.004 Affective Quality and Play in Mother-Child Dyads with 426.009 Does Early Intervention Improve Long-Term Outcomes ASD: Changes during a Parental Based Intervention S. Perzolli1, G. in Children with Autism Spectrum Disorder? an 8-Year Follow- Bertamini1, S. De Falco1, A. Pasqualotto2, P. Venuti1 and A. Bentenuto1, up of a Randomized Controlled Trial of a Preschool-Based Social (1)Department of Psychology and Cognitive Science, University of Communication Intervention A. Kaale1,2, M. W. Fagerland3, K. Larsen4, Trento, Rovereto, Italy, (2)University of Trento, Rovereto, Italy O. A. Andreassen5, T. Nærland6 and L. Smith7, (1)Department of Special Needs Education, University of Oslo, Oslo, Norway, (2)Norwegian Centre 426.005 An Umbrella Review and a Meta-Analysis of Pivotal of Expertise for Neurodevelopmental Disorders and Hypersomnias, 1 Response Treatment in Autism Spectrum Disorder A. Y. Hardan and Oslo University Hospital, Oslo, Norway, (3)Oslo Centre for Biostatistics 2 M. Uljarevic , (1)Psychiatry & Behavioral Sciences, Stanford University, & Epidemiology, Oslo University Hospital, Oslo, Norway, (4)Division Stanford, CA, (2)Department of Psychiatry and Behavioral Sciences, of Pediatric and Adolescent Medicine, Regional Resource Centre for School of Medicine, Stanford University, Stanford, CA Autism, ADHD, Tourette’s Syndrome and Narcolepsy, Oslo University Hospital, Oslo, Norway, (5)NORMENT, KG Jebsen Centre for Psychosis 426.006 Champion: Caregiver Administered Holistic Autism Research, Institute of Clinical Medicine,, University of Oslo, Oslo, Management Program for Individualised and Optimal Nurturing: Norway, (6)National Center of Competence for Rare Disorders and Comparison between Weekly and Six-Weekly Follow-up Training Disabilities, Oslo University Hospital, Oslo, Norway, (7)Department of Sessions : A Randomised Trial M. Juneja1, S. Sairam2, R. Jain3 and D. Psychology, University of Oslo, Oslo, Norway Mishra3, (1)Maulana Azad Medical College, New Delhi, India, (2)Maya Clinic, Ghaziabad, India, (3)Pediatrics, Maulana Azad Medical College 426.011 Early Childhood Services and Adaptive Behavior Outcomes and Lok Nayak Hospital, New Delhi, India for Young Children with Autism and Other Developmental Delays E. Pompan1, J. Safer-Lichtenstein1 and L. L. McIntyre2, (1)University of 426.007 Comparative Outcomes of Young Minimally Verbal and Oregon, Eugene, OR, (2)Special Education and Clinical Sciences, Verbal Autistic Children Following Receipt of Group-Based Early Start University of Oregon, Eugene, OR Denver Model (G-ESDM) C. Dissanayake1 and R. H. Cliffe2, (1)Olga Tennison Autism Research Centre, La Trobe University, Melbourne, 426.012 Early Echoic Imitation Predicts Reduction in Autism VIC, Australia, (2)Olga Tennison Research Centre, BUNDOORA, VIC, Symptomatology: A Retrospective Analysis of Toddlers from an Early Australia Intervention Treatment Center P. Vietze1, L. E. Lax2, S. Khawar3, A. Yanchik4, G. Irshad5, M. Grazioli5 and C. Tilson6, (1)Psychology, 426.008 Developmental Outcomes for Young Children with Autism Montclair State University, Montclair, NJ, (2)Administration, CARES, Participating in the Parent-Implemented Early Start Denver Model NEW YORK, NY, (3)Department of Psychology, Montclair State Whose Parents Received Mindfulness Based Stress Reduction N. A. University, Montclair, NJ, (4)PSYCHOLOGY, Montclair State University, Broderick1, Z. Warren2, J. C. Slaughter3, A. Nicholson4, A. Stainbrook5, Montclair, NJ, (5)PSYCHOLOGY, Montclair State University, Plainfield, J. L. Taylor6, C. G. Herrington2, E. Dykens7, P. Juárez5, A. S. Weitlauf8 NJ, (6)Helping Hands Inc, NEW YORK, NY and M. Santulli9, (1)Pediatrics, Vanderbilt University Medical Center - Treatment and Research Institute for Autism Spectrum Disorder, 426.013 Early Intervention for Autistic Children: Incorporating the Nashville, TN, (2)Vanderbilt University Medical Center, Nashville, TN, Perspectives of Autistic Adults K. M. Penner1, R. K. Schuck2, P. Dwyer3, (3)Biostatistics, Vanderbilt University Medical Center, Nashville, TN, Z. J. Williams4, A. Jevtic1 and M. Wang1, (1)Gevirtz Graduate School of (4)Vanderbilt University, Pleasant View, TN, (5)Vanderbilt University Education, University of California, Santa Barbara, Santa Barbara, CA, Medical Center- Treatment and Research Institute for Autism Spectrum (2)Psychiatry and Behavioral Sciences, San Jose State University, Palo Disorder, Nashville, TN, (6)Vanderbilt Kennedy Center, Nashville, TN, Alto, CA, (3)Department of Psychology, University of California, Davis, (7)Vanderbilt University, Nashville, TN, (8)Vanderbilt Kennedy Center, Davis, CA, (4)Medical Scientist Training Program, Vanderbilt University Vanderbilt University Medical Center, Nashville, TN, (9)East Tennessee School of Medicine, Nashville, TN State University, Johnson City, TN 426.014 Early Reading Comprehension Intervention for Preschoolers 426.010 Dog Training Intervention Improves Adaptive Social with ASD and Hyperlexia D. Macdonald, G. Luk and E. M. Quintin, Communication Skills in Young Children with Autism Spectrum Disorder: Educational & Counselling Psychology, McGill University, Montreal, QC, 1 2 A Controlled Crossover Study . E. Ben-Itzchak and D. A. Zachor , (1) Canada Bruckner Center for Research in Autism, Communication Disorder, Ariel University, Ariel, Israel, (2)The Autism Center/ALUT, Pediatrics, Tel Aviv 426.015 Effect of Project Impact on Joint Attention in Children with University /Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel ASD: A Randomized Controlled Trial S. Van der Paelt, P. Warreyn, A. Piatti and H. Roeyers, Department of Experimental-Clinical and Health Psychology, Ghent University, Ghent, Belgium

426.016 Effectiveness of a Parent-Implemented Scerts Model-Based Intervention for Toddlers with Autism Spectrum Disorders M. Suh1 and S. Lee2, (1)Ewha Womans University, Seoul, Korea, The Republic of, (2)Special Education, Ewha woman’s Univ., Seoul, Korea, Republic of (South)

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426.017 Effectiveness of Responsivity Intervention Strategies on 426.023 Linking Social Communication and Disruptive Behaviour in Prelinguistic and Language Skills of Children with ASD: A Meta-Analysis Parent-Mediated Interventions for Toddlers with ASD K. Stover1 and J. of Randomized Controlled Trials J. McDaniel1, L. Black2, M. Murphy2, A. Brian2, (1)OISE - APHD, University of Toronto, Toronto, ON, Canada, J. Rangel3, M. Friedrichs3, N. Brady2 and S. F. Warren4, (1)Life Span (2)Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada Institute, University of Kansas, Lawrence, KS, (2)University of Kansas, Lawrence, KS, (3)University of Kansas Medical Center, Kansas City, KS, 426.024 Micro-Analysis Reveals Increased Parent-Child Positive 1 (4)Speech-Language-Hearing: Sciences and Disorders, University of Affect in Severely Impaired Children Receiving the Esdm Y. Sinai , 1,2 1,3 2 4 1,2 Kansas, Lawrence, KS T. Gev , I. Gordon , I. Mor Snir , G. Vivanti and O. Golan , (1) Department of Psychology, Bar-Ilan University, Ramat-Gan, Israel, (2) 426.018 Effectiveness of World Health Organization Caregiver Association for Children at Risk, Givat-Shmuel, Israel, (3)The Gonda Skills Training Programme for Families of Children with Developmental Brain Research Center, Bar-Ilan University, Ramat-Gan, Israel, (4)A.J. Disorders or Delays in Taiwan: The First Year at Implementation Stage Drexel Autism Institute, Drexel University, Philadelphia, PA M. N. Hsiao1,2, W. T. Soong1,3,4, Y. N. Chiu1,3, W. C. Tsai1,3, H. Y. Lin5, S. C. Li1, G. J. Seng1,6, T. J. Liu7, H. M. Chen7,8, A. Shih9, Y. C. Chang10 426.026 Outcomes of a Short-Term Low-Intensity Early Start Denver and T. W. CST Team11, (1)Department of Psychiatry, National Taiwan Model Implemented in the Taiwanese Public Health System: 6-Month 1 1 2 3 University Hospital, Taipei, Taiwan, (2)School of Occupational Therapy, Follow-up C. H. Chiang , T. L. Lin , S. Y. Ho , H. C. Wu and C. C. 2 College of Medicine, National Taiwan University, Taipei, Taiwan, (3) Wong , (1)Department of Psychology, National Chengchi University, Department of Psychiatry, College of Medicine, National Taiwan Taipei City, Taiwan, (2)Child Developmental Assessment & Intervention University, Taipei, Taiwan, (4)St. Joseph’s Hospital, Yunlin, Taiwan, (5) Center, Zhongxing Branch of Taipei City Hospital, Taipei City, Taiwan, Department of Psychiatry, University of Toronto, Toronto, ON, Canada, (3)Department of Rehabilitation, Taipei Tzu Chi Hospital, Buddhist Tzu (6)Graduate Institute of Brain and Mind Sciences, National Taiwan Chi Medical Foundation, New Taipei City, Taiwan University, Taipei, Taiwan, (7)Foundation for Autistic Children and Adults 426.027 PACE Coaching: Training Community Providers to Support in Taiwan, Taipei, Taiwan, (8)Department of Special Education, National Parents of Toddlers at Risk for ASD P. Colozzo, School of Audiology Taipei University of Education, Taipei, Taiwan, (9)Autism Speaks, and Speech Sciences, University of British Columbia, Vancouver, BC, New York, NY, (10)Special Education and Counseling, California State Canada University, Los Angeles, Los Angeles, CA, (11)Department of Mental Health and Substance Abuse, World Health Organization, Geneva, 426.028 Parent Therapeutic Factors in Mental Health Treatment for Switzerland Autistic Children: A Qualitative Analysis V. Chan (Ting) and J. A. Weiss, Psychology, York University, Toronto, ON, Canada 426.019 From Clinic Room to Zoom: Deploying an Evidence-Based Parent-Mediated Intervention in the Community before and during the 426.029 Perceptions of Brazilian Parents and Clinicians of a Low- 1 1 1 1 2 Pandemic S. Netzer , T. Graucher , L. Levi , N. Rudko and J. Koller , Cost Parent-Mediated Intervention for Autistic Children P. Godoy1, E. (1)The Hebrew University of Jerusalem, Jerusalem, Israel, (2)Seymour Shephard2, J. Green3, L. Mcwilliams4 and H. Brentani5, (1)Universidade Fox School of Education, Hebrew University of Jerusalem, Jerusalem, de Sao Paulo (USP), Sao Paulo, Brazil, (2)Institute of Psychiatry, Israel Psychology and Neuroscience, King’s College London, London, United Kingdom of Great Britain and Northern Ireland, (3)University of 426.020 Implementation of the Group-Esdm in a Childcare Setting Manchester, Manchester, United Kingdom of Great Britain and Northern Serving Under-Resourced Communities A. Zitter1, V. David2, L. A. Ireland, (4)The University of Manchester, Manchester, United Kingdom, Vismara3 and G. Vivanti1, (1)A.J. Drexel Autism Institute, Drexel (5)Clinical Hospital, São Paulo, Brazil University, Philadelphia, PA, (2)So Love Autistic Center, Philadelphia, PA, (3)Independent Consultant, Sacramento, CA 426.030 Pivotal Response Treatment (PRT) with Parent Group Training for Young Children with Autism Spectrum Disorder: A Mixed- 426.021 Interventions for Children on the Autism Spectrum: A Methods Approach M. W. P. De Korte1,2, M. Van Dongen - Boomsma1, Systematic Umbrella Review H. Waddington1,2, K. Varcin2,3, R. Sulek2,3, I. J. Servatius-Oosterling1, S. Kaijadoe1, J. K. Buitelaar1,3 and W. G. C. A. Bent2,4, J. Ashburner5, V. Eapen6, E. Goodall7, K. Hudry8, J. M. Staal1,2,4, (1)Karakter Child and Adolescent Psychiatry University Center, Roberts9, N. Silove10, D. Trembath2,11 and A. O. Whitehouse12, (1)Victoria Nijmegen, Netherlands, (2)Radboud University Medical Center, Donders University of Wellington, Wellington, New Zealand, (2)Cooperative Institute for Brain, Cognition and Behaviour, Department of Cognitive Research Centre for Living with Autism (Autism CRC), Brisbane, Neuroscience, Nijmegen, Netherlands, (3)Department of Cognitive QLD, Australia, (3)Griffith University, Brisbane, QLD, Australia, (4) Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Victorian Autism Specific Early Learning and Care Centre, La Trobe Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, University, Melbourne, Australia, (5)Autism Queensland, The University (4)Institute for Brain and Cognition, Leiden University, Leiden, of Queensland, Sunnybank, Australia, (6)Cooperative Research Centre Netherlands for Living with Autism (Autism CRC), Long Pocket, Brisbane, Australia, (7)Health Possibilities, South Australia, SA, Australia, (8)La Trobe 426.031 Pivotal Response Treatment: Perspectives of Autistic Adults University, Melbourne, Australia, (9)Graduate Intitute of Educational R. K. Schuck1, K. M. Penner1, P. Dwyer2, Z. J. Williams3, A. Jevtic1 Research, Griffith University, Meadowbrook, QLD, Australia, (10) and M. Wang1, (1)Gevirtz Graduate School of Education, University University of Sydney, Sydney, Australia, (11)Menzies Health Institute, of California, Santa Barbara, Santa Barbara, CA, (2)Department of Griffith University, Australia, (12)Telethon Kids Institute, University of Psychology, University of California, Davis, Davis, CA, (3)Medical Western Australia, Perth, WA, Australia Scientist Training Program, Vanderbilt University School of Medicine, Nashville, TN 426.022 Investigate the Parent Learned Specific Skills during 10 Weeks Parent Early Start Denver Model Training Program S. F. Fan, Taipei Medical University Hospital, Taipei, Taiwan

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426.032 Play Diversity and Complexity in Diverse Young Children 426.041 The PACE Coaching Randomized Controlled Trial P. with Autism Y. C. Chang1, S. Y. Shire2, W. I. Shih3 and C. Kasari3, (1) Mirenda, University of British Columbia, Vancouver, BC, Canada Special Education and Counseling, California State University, Los Angeles, Los Angeles, CA, (2)University of Oregon, Eugene, OR, (3) 426.042 The Relationship between Child’s Play Level and Use of University of California, Los Angeles, Los Angeles, CA Parent Strategies in Preschoolers with Limited Language M. Tafolla Magana1, K. Sterrett1, J. Yang2, C. K. Toolan1 and C. Kasari1, (1) 426.033 Preliminary Evaluation to Implement Who Caregiver Skill University of California, Los Angeles, Los Angeles, CA, (2)Department of Training Program in Mainland China – a Pilot Study B. Chen1, H. Deng2, Psychiatry and Biobehavioral Sciences, UCLA, Los Angeles, CA X. Zou3, H. Zhu1 and T. W. CST Team4, (1)Child Development and Behavior Center, Third Affiliated Hospital of SUN YAT-SEN University, 426.044 Treating Disruptive Behavior in Children with ASD: Guangzhou, China, (2)Child Developmental & Behavior Center, Third Bridging Implementation of the Rubi Parent Training Program from 1 2 3 Affiliated Hospital of SUN YAT-SEN University, Guangzhou, China, Research to Practice D. M. Tagavi , H. Rea , K. P. Ahlers , G. 4 5 3 Guangzhou, Guangdong, China, (3)The Third Affiliated Hospital of Sun Haidar , K. Paszek and K. Bearss , (1)University of California, Santa Yat-Sen University, Guangzhou, China, (4)Department of Mental Health Barbara, Santa Barbara, CA, (2)Center for Human Development and Substance Abuse, World Health Organization, Geneva, Switzerland and Disability, University of Washington, Seattle, WA, (3)Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, (4) 426.034 Probiotic Intervention May Benefit Preschool Children with University of Washington, Seattle, WA, (5)SDSU Center for Autism and Autism Spectrum Disorder Via Gut-Brain Axis Y. W. Liu1, Y. H. Huang2,3 Developmental Disorders, San Diego State University, San Diego, CA and H. J. Chen3,4, (1)Institute of Biochemistry and Molecular Biology, National Yang-Ming University, Taipei, Taiwan, (2)Department of 426.045 Treatment Experiences Prior to World Health Organization’s Psychiatry, MacKay Memorial Hospital, Taipei, Taiwan, (3)Department of Caregiver Skills Training Programme May Moderate Outcomes G. J. 1,2 3 1 1 1,4,5 1 Medicine, MacKay Medical College, New Taipei City, Taiwan, (4)Division Seng , W. T. Soong , Y. N. Chiu , W. C. Tsai , H. Y. Lin , S. C. Li , 1,6 7 7 8 9 of Pediatric Neurology, Department of Pediatrics, MacKay Children’s M. N. Hsiao , T. J. Liu , H. M. Chen , A. Shih , Y. C. Chang and T. W. 10 Hospital, Taipei, Taiwan CST Team , (1)Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan, (2)Graduate Institute of Brain and Mind 426.035 Restricted and Repetitive Behaviors, Problem Behaviors, Sciences, National Taiwan University, Taipei, Taiwan, (3)Department and Outcomes of the PEERS® for Preschoolers Program L. Antezana1, of Psychiatry, College of Medicine, National Taiwan University, Taipei, J. Albright1, A. Scarpa1, J. A. Richey2, E. A. Laugeson3 and R. S. Factor1, Taiwan, (4)Department of Psychiatry, National Taiwan University Hospital (1)Virginia Polytechnic Institute and State University, Blacksburg, VA, (2) & College of Medicine, Taipei, Taiwan, (5)Department of Psychiatry, Virginia Tech, Blacksburg, VA, (3)UCLA Semel Institute for Neuroscience University of Toronto, Toronto, ON, Canada, (6)School of Occupational and Human Behavior, Los Angeles, CA Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan, (7)Foundation for Autistic Children and Adults in Taiwan, Taipei, 426.036 Social Skills, Parenting Styles, and Family Functioning Taiwan, (8)Autism Speaks, New York, NY, (9)Special Education and 1,2,3 4 in the PEERS® for Preschoolers Program R. S. Factor , H. Rea , Counseling, California State University, Los Angeles, Los Angeles, CA, 1,3 1,3 1 2 A. V. Dahiya-Singh , J. Albright , T. H. Ollendick , E. A. Laugeson (10)Department of Mental Health and Substance Abuse, World Health 1,3 and A. Scarpa , (1)Virginia Polytechnic Institute and State University, Organization, Geneva, Switzerland Blacksburg, VA, (2)UCLA Semel Institute for Neuroscience and Human Behavior, Los Angeles, CA, (3)Virginia Tech Autism Clinic & Center for Autism Research, Blacksburg, VA, (4)Center for Human Development and Disability, University of Washington, Seattle, WA Poster Session Poster 427 - Interventions - Non-pharmacologic - School- 426.037 Stay with Me: The Role of Child-Therapist Interactive Variables and Interpersonal Synchrony in Early Ndbi Treatment Age, Adolescent, Adult Response. G. Bertamini1,2, S. Perzolli1, A. Bentenuto1, E. Paolizzi1, P. Venuti1 and C. Furlanello3, (1)Department of Psychology and Cognitive 427.001 A 12-Week Cognitive Behavioral Therapy (CBT) Protocol 1 2 3 Science, University of Trento, Rovereto, Italy, (2)Bruno Kessler Specifically Modified for ASD K. Birtwell , C. Ravichandran , H. Saro , J. 1 1 1 Foundation (FBK), Trento, Italy, (3)HK3 Lab, Milan, Italy E. Mullett , C. J. McDougle and L. Nowinski , (1)Lurie Center for Autism, Massachusetts General Hospital, Lexington, MA, (2)McLean Hospital, 426.038 The Effects of Brief Parent Coaching in Pivotal Response Belmont, MA, (3)Massachusetts General Hospital - Lurie Center, Treatment on Minimally Verbal Preschoolers with Autism Spectrum Lexington, MA, Lexington, MA Disorder T. Hamodat1, H. E. Flanagan2, D. J. Chitty3 and I. M. Smith4, (1) Psychology & Neuroscience, Dalhousie Univeristy, Halifax, NS, Canada, 427.002 A Pilot RCT Investigating the Feasibility of Delivering an (2)IWK Health Centre, Halifax, NS, Canada, (3)IWK Health Centre, Individualised, Modular Psychological Treatment for Anxiety Experienced Halifax, NS, CANADA, (4)Dalhousie University / IWK Health Centre, By Autistic Adults: Personalised Anxiety Treatment – Autism (PAT-A). 1 1 2 1,2 1 2 Halifax, NS, CANADA J. Rodgers , S. Brice , P. Welsh , B. Ingham , C. Wilson , G. Evans , A. LeCouteur1, M. Freeston3 and J. R. Parr1,2, (1)Population Health 426.039 The PACE Coaching Cost Analysis: An Incremental Analysis Sciences Institute, Newcastle University, Newcastle upon Tyne, United Comparing the Costs of Parent Coaching to Assessment and Monitoring Kingdom, (2)Cumbria, Northumberland, Tyne and Wear NHS Foundation in Toddlers at Risk for ASD W. J. Ungar, The Hospital for Sick Children Trust, Newcastle upon Tyne, United Kingdom, (3)School of Psychology, Research Institute, Toronto, ON, Canada Newcastle University, Newcastle upon Tyne, United Kingdom

426.040 The PACE Coaching Project for Toddlers at Risk for Autism: Understanding Implementation V. R. Smith, Educational Psychology, University of Alberta, Edmonton, AB, CANADA

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427.003 A Systematic Review and Meta-Analysis of Group 427.009 Combined Data from the Application of the Computerized Interventions Targeting the Social Competence of Autistic Adolescents Progressive Attentional Training (CPAT) across Brazil and the UK B. Afsharnejad1, M. H. Black2, M. Falkmer3, S. Bolte4 and S. J. Girdler2, Shows Generalized Improvements in Academic Performance and (1)Autism Research Team, Telethon Kids Institute, Perth, Australia, (2) Fluid Intelligence M. Muller Spaniol1, C. Mevorach2, L. Shalev3, School of Occupational Therapy, Social Work and Speech Pathology, M. C. Teixeira4, R. Lowenthal5, J. Magalhães6 and C. S. Paula4, (1) Curtin University, Perth, WA, Australia, (3)Curtin University, Bentley, Developmental Disorders Program, Mackenzie Presbyterian University, Australia, (4)Center of Neurodevelopmental Disorders (KIND), Centre Sao Paulo, Brazil, (2)School of Psychology, University of Birmingham, for Psychiatry Research; Department of Women’s and Children’s Birmingham, United Kingdom, (3)School of Education and the Sagol Health, Karolinska Institutet, & Stockholm Health Care Services, Region School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel, (4) Stockholm, Stockholm, Sweden Developmental Disorder Program, Universidade Presbiteriana Mackenzie, São Paulo, Brazil, (5)Santa Casa Hospital, Sao Paulo, Brazil, 427.004 ADHD Symptoms Moderate the Effect of an Executive (6)Mackenzie Presbyterian University, São Paulo, Brazil Function Skills Training in Children with ASD S. R. Edmunds1,2, G. A. MacNaughton3 and S. Faja1,2, (1)Boston Children’s Hospital, Boston, 427.010 Coping with Uncertainty in Everyday Situations: Adolescent MA, (2)Psychiatry, Harvard School of Medicine, Boston, MA, (3)Boston (CUES-Ad) R. Herrema1,2, S. Brice3, M. Freeston4 and J. Rodgers3, Children’s Hospital: Labs of Cognitive Neuroscience, Boston, MA (1)Newcastle University, Newcastle, United Kingdom, (2)Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, Newcastle, 427.005 Acceptability of an Online Executive Function Coaching United Kingdom, (3)Population Health Sciences Institute, Newcastle Program for Parents in a Community Sample E. Wilkinson, A. University, Newcastle upon Tyne, United Kingdom, (4)School of Milgramm, M. Rinaldi and K. V. Christodulu, Center for Autism and Psychology, Newcastle University, Newcastle upon Tyne, United Related Disabilities, Albany, NY Kingdom

427.006 Adaptation and Preliminary Evaluation of an Intervention 427.011 Discrete Electrocortical Predictors of Anxiety during Follow- Targeting Intolerance of Uncertainty in Autistic Children with up Period after Social Skills Intervention for Youth with Autism Spectrum 1 2 Co-Occurring Intellectual Disability (CUES:ID) J. Maxwell , V. Grahame Disorder R. G. McDonald1, N. Yacoub1, S. Khawar1, M. D. Lerner2 and 3 and J. Rodgers , (1)Newcastle University, Newcastle upon Tyne, United E. Kang1, (1)Department of Psychology, Montclair State University, Kingdom, (2)Cumbria, Northumberland, Tyne and Wear NHS Foundation Montclair, NJ, (2)Department of Psychology, Stony Brook University, Trust, Newcastle upon Tyne, United Kingdom, (3)Population Health Stony Brook, NY Sciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom 427.012 Does a Novel Group Parenting Intervention Reduce Emotional and Behavioural Problems in Young Autistic Children? 427.007 Co-Designing a Primary Care Health Check for Autistic Results from the Autism Spectrum Treatment and Resilience (ASTAR) 1 2 3 4 1 Adults H. Taylor , D. Mason , B. Ingham , T. Finch , C. Wilson , C. Pilot Randomised Controlled Trial (RCT) M. Palmer1, T. Charman2, 5 6 7 8 8 Scarlett , S. Moss , C. Buckley , C. Seiboth , R. F. Lees and J. R. D. Stringer1, V. Hallett3, J. Mueller3, R. Romeo1, J. Tarver4, J. Paris 1 Parr , (1)Population Health Sciences Institute, Newcastle University, Perez1, L. Breese3, M. Hollett3, T. Cawthorne1, J. Boadu1, B. Beresford5, Newcastle upon Tyne, United Kingdom, (2)Social, Genetic and M. Knapp6, V. Slonims7, A. Pickles1, S. Scott1 and E. Simonoff1, (1) Developmental Psychiatry Centre, Institute of Psychiatry, Psychology King’s College London, Institute of Psychiatry, Psychology and and Neuroscience, King’s College London, London, United Kingdom, Neuroscience, London, United Kingdom, (2)Department of Psychology, (3)Northumberland Tyne and Wear NHS Foundation Trust, Newcastle Institute of Psychiatry, Psychology and Neuroscience, King’s College upon Tyne, United Kingdom, (4)Nursing, Midwifery and Health, Faculty London, London, United Kingdom, (3)South London and Maudsley of Health and Life Sciences, Northumbria University, Newcastle upon NHS Foundation Trust, London, United Kingdom, (4)Aston University, Tyne, United Kingdom, (5)North Tyneside CCG, Newcastle-upon-Tyne, Birmingham, United Kingdom, (5)University of York, York, United United Kingdom, (6)Northumberland CCG, Newcastle upon Tyne, United Kingdom, (6)PSSRU, LSE, London, United Kingdom, (7)Guy’s & St Kingdom, (7)The Royal College of General Practitioners UK, London, Thomas’ NHS Foundation Trust (Evelina Children’s Hospital), London, United Kingdom of Great Britain and Northern Ireland, (8)Newcastle United Kingdom University, Newcastle upon Tyne, United Kingdom 427.013 Double-Blind Placebo-Controlled Trial for the Effects of 427.008 Cognitive-Behavioral Family Therapy As Psychoeducation Propranolol on Anxiety in Autism Spectrum Disorder D. Q. Beversdorf1, for Adolescents with Highfunctioning Autism Spectrum Disorders: Aware B. J. Ferguson2, G. Petroski3, S. Hunter4, K. Hirst4, B. Lolli4, K. R. and Care for My Autistic Traits (ACAT) Program for a Pragmatic Multisite Bellesheim5, A. U. Barton6, J. E. Muckerman7, T. N. Takahashi7, K. 1 2 3 Randomized Controlled Trial F. Oshima , N. Takahashi , H. Kuwabara , Selders8, R. Holem3, K. Sohl9, P. C. Dyke3, J. Stichter3, M. O. Mazurek10 4 5 1 6 1 W. Mandy , A. Tsuchiyagaito , E. Shimizu , M. Hongo , A. Nakagawa , and S. M. Kanne11, (1)Department of Radiology, Neurology, and 1 1 1 2 2 7 Y. Hirano , C. Suto , M. Seto , N. Sato , S. Nakamura , J. Masuya and Psychological Sciences, University of Missouri, Columbia, Columbia, 8 S. Guan , (1)Research Center for Child Mental Development Chiba MO, (2)Health Psychology, Radiology, & Thompson Center for Autism & University, Chiba, Japan, (2)Fukushima University, Fukushima, Japan, Neurodevelopmental Disorders, University of Missouri, Columbia, MO, (3)University of Tokyo Hospital, Tokyo, Japan, (4)University College (3)University of Missouri, Columbia, MO, (4)Thompson Center, University London, London, United Kingdom of Great Britain and Northern Ireland, of Missouri, Columbia, MO, (5)University of Michigan, Ann Arbor, MI, (6) (5)Laureate Instituto for Brain Research, Tulsa, OK, USA, Tarusa, OK, Northwest Missouri State University, Maryville, MO, (7)Thompson Center (6)Chiba University, Chiba, Japan, (7)Department of Psychiatry, Tokyo for Autism & Neurodevelopmental Disorders, University of Missouri, Medical University Ibaraki Medical Center, Ibaraki, Japan, Ibaraki, Japan, Columbia, MO, (8)Thompson Center for Autism and Neurodevelopmental (8)Waseda University, Tokyo, Japan Disorders, Columbia, MO, (9)Department of Child Health, University of Missouri, School of Medicine, Columbia, MO, (10)University of Virginia, Charlottesville, VA, (11)Thompson Center for Autism & Neurodevelopmental Disorders, Columbia, MO

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427.014 Emotion Dysregulation in ASD: An Examination of an RCT of 427.023 Improving Social Media Competence and Confidence: The CBT for Anxiety in Public Schools A. T. Meyer1, N. Reyes2, K. Pickard3, Acceptability, Feasibility, and Preliminary Efficacy of the Selfi Program A. R. E. Boles4, E. T. Engstrom5, L. Hayutin4, C. Middleton4, T. Tanda6, A. Osuna1, D. M. Tagavi2, K. Sabini2, G. Goldschmidt3 and T. W. Vernon1, Blakeley-Smith2 and J. Reaven2, (1)JFK Partners, University of Colorado (1)University of California Santa Barbara, Santa Barbara, CA, (2) School of Medicine, Aurora, CO, (2)JFK Partners, University of Colorado University of California, Santa Barbara, Santa Barbara, CA, (3)University Anschutz Medical Campus, Aurora, CO, (3)Emory University School of California, Santa Barbara (UCSB), Santa Barbara, CA of Medicine, Atlanta, GA, (4)University of Colorado Anschutz Medical Campus, Aurora, CO, (5)UC Davis MIND Institute, Sacramento, CA, (6) 427.024 Influence of ASD Symptom Severity on Treatment Outcome Developmental Pediatrics, Children’s Hospital Colorado, Aurora, CO in Young Adults with ASD: The UCLA PEERS® Intervention J. E. Lerner, Y. S. Lograsso, L. D. Solouki, K. Sung, H. R. Goodman and 427.015 Examining Gender Differences in Improvement in Loneliness E. A. Laugeson, UCLA Semel Institute for Neuroscience and Human and Social Responsiveness Following PEERS® for Young Adults L. Behavior, Los Angeles, CA C. Savage1, C. Moody2, E. Denluck1 and E. A. Laugeson2, (1)UCLA Department of Psychiatry, PEERS lab: UCLA PEERS Clinic, Los 427.025 Intervention Services for Autistic Adults: An Asdeu Study 1 Angeles, CA, (2)UCLA Semel Institute for Neuroscience and Human of Autistic Adults, Carers, and Professionals’ Experiences M. Micai , 2 1 2 2 3 Behavior, Los Angeles, CA A. Ciaramella , T. Salvitti , F. Fulceri , L. M. Fatta , L. Poustka , R. Diehm4, G. Iskrov5, R. Stefanov5, Q. Guillon6, B. Roge7, A. Staines8, 427.016 Examining the Association between Self-Concept and M. R. Sweeney9, A. M. Boilson10, T. Leosdottir11, E. Saemundsen12, I. Treatment Outcomes in Social Skills and Social Engagement for Moilanen13, H. E. Ebeling14, A. Yliherva15, T. Parviainen16, M. Gissler17, P. Adolescents with Autism Spectrum Disorder Following the UCLA PEERS Tani18, R. Kawa19, A. M. Vicente20, C. Rasga21, M. Efrim-Budisteneau22, Intervention J. Rodstein, C. Moody, Y. S. Lograsso, K. Sung, H. R. I. Dale23, C. Povey24, N. Flores25, C. Jenaro25, M. L. Monroy25, P. García- Goodman and E. A. Laugeson, UCLA Semel Institute for Neuroscience Primo26, T. Charman27, S. Cramer28, C. Warberg28, R. Canal-Bedia25, and Human Behavior, Los Angeles, CA M. Posada29, D. Schendel28,30,31 and M. L. Scattoni2, (1)Research Coordination and Support Service, Istituto Superiore di Sanità, Rome, 427.017 Experiences of Young Adults with Autism Spectrum Disorder Italy, (2)Istituto Superiore di Sanità, Rome, Italy, (3)Child and Adolescent with Employment Readiness Skills Training: A Qualitative Analysis C. Psychiatry and Psychotherapy, University Medical Center Goettingen, Okyere, Department of Counseling, Educational Psychology and Special Goettingen, Germany, (4)Medical University of Vienna, Vienna, Austria, Education, Michigan State University, East Lansing, MI (5)Institute for Rare Diseases, Plovdiv, Bulgaria, (6)University of Toulouse, Toulouse, France, (7)University of Toulouse - Jean Jaures, 427.018 Exploring Outcomes of the PEERS Intervention for Toulouse, France, (8)School of Nursing, Dublin City University, Dublin, Adolescents with Autism Spectrum Disorder K. A. Willar1, S. Bruce2 Ireland, (9)Dublin City University, Glasnevin, Ireland, (10)School of and G. W. Gengoux1, (1)Psychiatry and Behavioral Sciences, Stanford Nursing & Human Sciences, Dublin City University, Dublin 9, Ireland, University School of Medicine, Stanford, CA, (2)PGSP-Stanford Psy.D. (11)Education and research, State Diagnostic and Counselling Centre, Consortium, Palo Alto, CA Kópavogur, Iceland, (12)State Diagnostic and Counseling Center, 427.020 Feasibility and Attendance in an 8-Week Physical Exercise Kopavogur, ICELAND, (13)Child Psychiatry, University of Oulu and Program in Underserved Children with ASD J. G. Gehricke1, L. Oulu University Hospital, Oulu, Finland, (14)Clinic of Child Psychiatry Lowery2, S. D. D. Alejo3, M. N. Dawson3, J. Chan4, R. A. Parker5, and PEDEGO Research Unit, Oulu University Hospital and University of A. R. Archibald6, H. Benavidez6, T. Saini6, K. Kuhlthau4, Y. Trujillo6, Oulu, Oulu, Finland, (15)University of Oulu, Oulu, Finland, (16)Finnish O. Grigaux6, M. Nguyen6, S. A. Cadondon6, M. G. Baconawa6, S. L. Association for Autism and Aspergers Syndrome, Helsinki, Finland, (17) Ferretti6, K. R. Bellesheim7 and M. Sweeney8, (1)The Center for Autism National Institute for Health and Welfare, Helsinki, Finland, (18)University & Neurodevelopmental Disorders, University of California, Irvine, Santa of Helsinki, Helsinki, Finland, (19)University of Warsaw, Warsaw, Poland, Ana, CA, (2)Thompson Center for Autism and Neurodevelopmental (20)Instituto Nacional Saude Doutor Ricardo Jorge, Lisbon, PORTUGAL, Disorders, University of Missouri, Columbia, MO, (3)Pediatrics, University (21)Instituto Nacional de Saúde Doutor Ricardo Jorge, Lisbon, Portugal, of California - Irvine, Santa Ana, CA, (4)Massachusetts General (22)’Victor Babes’ National Institute of Pathology, Bucharest, Romania, Hospital, Boston, MA, (5)Biostatistics, Massachusetts General Hospital (23)The National Autistic Society, Sheffield, United Kingdom, (24)The and Harvard Medical School, Boston, MA, (6)UC Irvine, Irvine, CA, (7) National Autistic Society, London, United Kingdom, (25)University of University of Michigan, Ann Arbor, MI, (8)Thompson Center for Autism Salamanca, Salamanca, Spain, (26)Institute of Health Carlos III, ISCIII, and Neurodevelopmental Disorders, University of Missouri, Missouri, MO Madrid, Spain, (27)Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United 427.021 Implementation of a Robot-Based Intervention for Students Kingdom, (28)Aarhus University, Aarhus, Denmark, (29)Institute of Rare with Autism in Public Elementary Schools S. Hurwitz1, N. Rodriguez2, O. Diseases Research, Instituto de Salud Carlos III, Madrid, Spain, (30) Heck2, K. Carlock3, A. Thielmeyer2 and B. Garman-McClaine2, (1)Special Public Health, Aarhus University, Aarhus, Denmark, (31)Economics Education, Indiana University, Bloomington, IN, (2)Indiana University, and Business, National Center for Registry-based Research, Aarhus Bloomington, IN, (3)Indiana University, BLOOMINGTON, IN University, Aarhus, Denmark

427.022 Implementing Social Skills Group during Covid-19 Pandemic 427.026 Investigating Vocal Variables for Assessing Progress for in an Ethnically Diverse Population M. Valicenti-McDermott, R. Battino, Children with ASD and Minimal Verbal Skills J. McDaniel1, P. Lor2, C. T. Fried, T. Jimenez, M. O’Neil, S. Siminerio and L. Shulman, Rose Burchfield2 and N. Brady2, (1)Life Span Institute, University of Kansas, F. Kennedy Center, Children’s Evaluation and Rehabilitation Center; Lawrence, KS, (2)University of Kansas, Lawrence, KS Montefiore Medical Center, Bronx, NY

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427.027 Life-Skills Coaching for Adults with Autism. A. Hillier1, 427.034 Service Dog’s Impact Is Mediated By the Severity of D. Schena2, N. Poto3, A. Buckingham4 and J. Dorey1, (1)University of Autism Spectrum Disorder Related Symptoms C. Moses Bélanger1,2, Massachusetts Lowell, Lowell, MA, (2)University of Massachusetts, C. L. Normand3, S. M. Fecteau4, N. Champagne5 and M. Trudel6, (1) Lowell, Lowell, MA, (3)Asperger/Autism Network, Watertown, MA, (4) Psychologie and psychoeducation, Université du Québec en Outaouais, Psychology, University of Massachusetts Lowell, Lowell, MA St-Jérôme, QC, Canada, (2)Fondation Mira, Sainte-Madeleine, QC, Canada, (3)Psychoéducation et psychologie, Université du Québec en 427.028 National Clearinghouse on Autism Evidence & Practice Outaouais, Gatineau, QC, Canada, (4)Psychoéducation et psychologie, (NCAEP): Updating a Systematic Review to Identify New Evidence- Université du Québec en Outaouais, St-Jérôme, QC, Canada, (5) 1 Based Practices for Children and Youth with Autism J. R. Steinbrenner , Mira Foundation, Sainte-Madeleine, QC, Canada, (6)Psychoeducation, 1 2 3 4 1 K. Hume , S. L. Odom , K. L. Morin , S. W. Nowell , B. Tomaszewski , University of Sherbrooke, Sherbrooke, QC, Canada S. Szendrey5, N. S. McIntyre6, S. Yucesoy-Ozkan7 and M. N. Savage8, (1)Frank Porter Graham Child Development Institute, University of North 427.035 Service Provider Knowledge, Confidence and Treatment Carolina at Chapel Hill, Chapel Hill, NC, (2)Frank Porter Graham Child Adaptations in the Delivery of Psychotherapy to Autistic Youth and Development Institute, University of North Carolina at Chapel Hill, San Youth with ADHD F. H. Roudbarani, P. Tablon-Modica and J. A. Weiss, Diego, CA, (3)University of North Carolina, Chapel Hill, Chapel Hill, NC, Psychology, York University, Toronto, ON, Canada (4)University of North Carolina - Chapel Hill, Chapel Hill, NC, (5)Allied Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, (6) 427.036 Sex Differences of Early School-Aged Children in Clinical University of California at Davis, Davis, CA, (7)Anadolu University, Presentation and Treatment Response to Pivotal Response Treatment K. 1 2 Eskisehir, Turkey, (8)Educational Psychology, University of North Texas, Drapalik and P. E. Ventola , (1)Yale Child Study Center, New Haven, Denton, TX CT, (2)Yale Child Study Center, Yale University School of Medicine, New Haven, CT 427.029 Parent Perceptions of Adolescents with ASD in the PEERS Program T. Choy1, E. Baker2, E. Veytsman3, A. M. Martin3, J. Blacher4 427.037 Skolkontakt - Social Validity of Social Skills Training in 1 1 1 1 2 and K. K. Stavropoulos3, (1)University of California, Riverside, Riverside, School Settings E. Leifler , A. Borg , C. Coco , A. Fridell and S. Bolte , CA, (2)University of California Riverside, Riverside, CA, (3)Graduate (1)Department of Women’s and Children’s Health, KIND Karolinska School of Education, University of California Riverside, Riverside, CA, Institutet Center of Neurodevelopmental Disorders, Stockholm, (4)Graduate School of Education, University of California, Riverside, Sweden, (2)Center of Neurodevelopmental Disorders (KIND), Centre Riverside, CA for Psychiatry Research; Department of Women’s and Children’s Health, Karolinska Institutet, & Stockholm Health Care Services, Region 427.030 Parenting Teens with Strong Emotions: A Pilot Study of Stockholm, Stockholm, Sweden a Group Intervention for Caregivers of Teens with Autism Spectrum Disorder and Depressive Symptoms A. B. Lupas1, S. Pickering1, M. 427.038 Social and Emotional Outcomes of the Autism Mentorship Cevasco1, T. M. Rutter2, K. Gurtovenko1, J. M. Myers2 and J. Williamson3, Program (AMP) R. L. Hudock, L. Weiler, D. Wood, K. Kremer and W. (1)Seattle Children’s Hospital, Seattle, WA, (2)Seattle Pacific University, Terrill, University of Minnesota, Minneapolis, MN Seattle, WA, (3)University of Washington, Seattle, WA 427.039 Step It up: Increasing Physical Activity for Adults with Autism 427.031 Perspectives of Primary Caregivers and Neurotypical Spectrum Disorder and Intellectual Disability Using Supported Self- 1 2 Siblings on a Prospective Sibling-Guided Motor Intervention for Children Management and Fitbit Technology M. N. Savage , B. Tomaszewski 2 with Autism Spectrum Disorder Y. Lu1, K. Erickson1, T. Sun2, S. Douglas2 and K. Hume , (1)Educational Psychology, University of North Texas, and J. L. Hauck1, (1)Department of Kinesiology, College of Education, Denton, TX, (2)Frank Porter Graham Child Development Institute, Michigan State University, East Lansing, MI, (2)Human Development and University of North Carolina at Chapel Hill, Chapel Hill, NC Family Studies, Michigan State University, East Lansing, MI 427.040 The Development and Acceptability Testing of ‘Empower- 427.032 Randomized Controlled Pilot Study of a Parent-Based ASD’: A Psycho-Educational and Psycho-Therapeutic Group-Based Crisis Prevention Institute (CPI) Physical Management Training Program Programme for Parents of Children Recently Diagnosed with Autism 1 1 2 1 1 (P-CPI): Safety and Parental Satisfaction L. Nowinski1,2, N. Simon1, K. K. Leadbitter , C. Ellis , S. Langhorne , L. Harrison , A. Pearson , 1 3 4 Birtwell1,2, A. Giauque1, C. Stamm1, A. Tassone1, C. J. McDougle1,2 and R. Smallman , J. Green and T. Reach-ASD Team , (1)University of C. Ravichandran1,3, (1)Lurie Center for Autism, Massachusetts General Manchester, Manchester, United Kingdom, (2)Division of Neuroscience & Hospital, Lexington, MA, (2)Harvard Medical School, Boston, MA, (3) Experimental Psychology, University of Manchester, Manchester, United McLean Hospital, Belmont, MA Kingdom, (3)University of Manchester, Manchester, United Kingdom of Great Britain and Northern Ireland, (4)Manchester University NHS 427.033 Self and Parent Reported Treatment Gains Following Foundation Trust, Manchester, United Kingdom PEERS: A Replication Study with Latinx Adolescents with ASD E. Veytsman1, E. Baker2, A. M. Martin1, T. Choy3, J. Blacher4 and K. K. 427.042 The Floreo Police Safety Module: Results of a Randomized 1 1 1 1 Stavropoulos1, (1)Graduate School of Education, University of California Control Trial A. S. Russell , A. Zitter , L. E. Cordero , K. G. Tena , M. 1 1 2 2 1 Riverside, Riverside, CA, (2)University of California Riverside, Riverside, L. Cola , M. Udhnani , R. Solorzano , S. Turnacioglu , J. S. Miller , V. 2 3 1 CA, (3)University of California, Riverside, Riverside, CA, (4)Graduate Ravindran , J. McCleery and J. Parish-Morris , (1)Center for Autism School of Education, University of California, Riverside, Riverside, CA Research, Children’s Hospital of Philadelphia, Philadelphia, PA, (2) Floreo, Inc., Washington DC, DC, (3)Psychology, Saint Joseph’s University, Philadelphia, PA

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427.043 The Impact of COVID-19 on Anxiety Symptoms Among 429.004 An Examination of the Buffering Hypothesis of Suicide Risk Children with ASD Entering Group CBT Treatment S. Pickering1, T. in Young Autistic Adults: Does Mental Wellbeing Buffer the Effect of M. Rutter2, A. B. Lupas3, J. L. Peterson4 and R. K. Earl5, (1)Seattle Depression on Suicidal Ideation? D. Hedley1, J. den Houting2, S. M. Children’s Hospital, Seattle, WA, (2)Seattle Pacific University, Seattle, Hayward3, M. Uljarevic4, S. M. Bury1, L. P. Lawson5,6, A. Clapperton7, WA, (3)Seattle Children’s Autism Center, Seattle, WA, (4)Department of A. Haschek5,6, C. Dissanayake1, J. Robinson4,8, J. N. Trollor6,9 and M. Psychiatry and Behavioral Sciences, University of Washington, Seattle, A. Stokes10, (1)Olga Tennison Autism Research Centre, School of WA, (5)Psychiatry and Behavioral Sciences, University of Washington, Psychology and Public Health, La Trobe University, Melbourne, VIC, Seattle, WA Australia, (2)Macquarie University, Sydney, Australia, (3)School of Health and Social Development, Deakin University, Burwood, VIC, 427.044 Virtual Emotion Regulation Treatment for Children Ages Australia, (4)School of Psychological Sciences, University of Melbourne, 8-12 with ASD: An Intensive, Video Based, Parent-Assisted Program Melbourne, VIC, Australia, (5)Olga Tennison Autism Research Centre, 1 2 3 1 Pilot R. Shaffer , M. Coffman , L. M. Schmitt , D. L. Reisinger and La Trobe University, Melbourne, VIC, Australia, (6)Cooperative Research 3 S. Randall , (1)Division of Developmental and Behavioral Pediatrics, Centre for Living with Autism (Autism CRC), Brisbane, QLD, Australia, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, (2)Virginia (7)School of Population and Global Health, University of Melbourne, Tech, Blacksburg, VA, (3)Cincinnati Children’s Hospital Medical Center, Melbourne, VIC, Australia, (8)Centre for Youth Mental Health, Orygen, Cincinnati, OH Melbourne, VIC, Australia, (9)Department of Developmental Disability Neuropsychiatry, UNSW, Sydney, NSW, Australia, (10)Deakin University, Burwood, VIC, Australia Poster Session 429.005 Analyzing the Relationship between IQ, Language Skills, Poster 428 - Interventions - Pharmacologic and Anxiety in Autism Spectrum Disorder E. Rinaldo1, E. Kelley2, E. Anagnostou3, S. Georgiades4, R. Nicolson5 and M. Ayub6, (1)York 428.001 Antipsychotics, Dysphagia, Aspiration Pneumonia, Bowel University, Toronto, ON, Canada, (2)Queen’s University, Kingston, ON, Obstruction and Related Surgeries in Adults with Severe Developmental Canada, (3)Autism Research Center, Bloorview Research Institute, Disabilities J. A. Hellings1, S. C. Singh2 and S. Singh3, (1)Psychiatry, Holland Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada, University of Missouri Kansas City and Truman Behavioral Health, (4)McMaster Autism Research Team, McMaster University, Hamilton, Kansas City, MO, (2)University of Missouri-Kansas City, Kansas City, ON, Canada, (5)University of Western Ontario, London, ON, Canada, (6) MO, (3)Harbor-UCLA Medical Center, Torrance, CA Psychiatry, Queen’s University, Kingston, ON, Canada

429.006 Autism Spectrum Disorder (ASD) and Other Poster Session Neurodevelopmental Disorders As a Risk Factor for Delayed Diagnosis of Catatonia. K. J. Zappia1,2, A. Shillington3, M. Lamy4 and K. Dominick3, Poster 429 - Medical and Psychiatric Comorbidity (1)Pediatrics; Child and Adolescent Psychiatry, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, (2)Psychiatry, University of 429.001 A Longitudinal Look: How Sleep Impacts Suicidal Cincinnati, Cincinnati, OH, (3)Cincinnati Children’s Hospital Medical Thoughts and Behaviors in Autism and Social Anxiety L. J. Regehr1, Center, Cincinnati, OH, (4)Division of Child and Adolescent Psychiatry, T. P. Gabrielsen2, J. A. Nielsen3 and M. South4, (1)Brigham Young Cincinnati Children’s Hospital Medical Center, Cincinnati, OH University, Provo, UT, (2)Counseling & Special Education, Brigham Young University, Provo, UT, (3)Harvard University, Cambridge, UT, (4) 429.007 Autistic Adults and Psychiatry; Experiences and Barriers to 1 2 3 4 Psychology & Neuroscience, Brigham Young University, Provo, UT Access M. Doherty , J. D. O’Sullivan , S. D. Neilson , J. K. Doyle , D. Burke5, M. Botha6, S. Sultan7 and L. Gallagher8, (1)Anaesthesia, Our 429.002 A Pilot Chart Review of Suicidal Thoughts and Behaviours Lady’s Hospital, Navan, Ireland, (2)Anaesthesia, Mater Private Hospital, Among Autistic Adults P. Jachyra1, M. C. Lai2,3, M. Dale4, A. Dublin, Ireland, (3)Independent Researcher, Cork, Ireland, (4)School Sawyer5, N. Fernandes6, J. Zaheer6 and Y. Lunsky1, (1)Azrieli Adult of Psychology, University of Dublin, Trinity College, Dublin, Dublin 2, Neurodevelopmental Centre, Centre for Addiction and Mental Health, Ireland, (5)Galway Autism Partnership, Galway, Ireland, (6)Psychology, Toronto, ON, Canada, (2)Autism Research Centre, Department of University of Stirling, Stirling, United Kingdom, (7)Singer and Sultan: Psychiatry, University of Cambridge, Cambridge, ON, United Kingdom, Consultants Plus+, Montreal, QC, Canada, (8)Trinity College Dublin, (3)The Margaret and Wallace McCain Centre for Child, Youth and Dublin, Ireland Family Mental Health, Centre for Addiction and Mental Health, Toronto, ON, Canada, (4)University of Toronto, Toronto, ON, Canada, (5)Centre 429.009 Birth-Assigned Sex, Gender, and Sexual Orientation Are for Addiction and Mental Health, Toronto, ON, Canada, (6)Centre for Associated with Depression and Anxiety Scores in Autistic Adults M. 1 1 1 2 Addiction and Mental Health, Toronto,, ON, Canada B. Mason , J. Gamutan , J. Richards and K. O. Gotham , (1)Rowan University, Glassboro, NJ, (2)Psychiatry and Behavioral Sciences, 429.003 Adapted Cognitive Behavioral Therapy for School-Aged Vanderbilt University Medical Center, Nashville, TN Children with Autism Spectrum Disorders and Interfering Anxiety: Impact on Caregiver-Defined Goals V. Sklar, A. R. Johnson and J. J. 429.010 Burnout in Women with ASD: An Underexposed Problem. 1 1 2 Wood, Human Development & Psychology, University of California, Los E. M. Blijd-Hoogewys , M. L. Bezemer and A. Mol , (1)INTER-PSY, Angeles, Los Angeles, CA Groningen, Netherlands, (2)dr. Leo Kannerhuis, Amsterdam, Netherlands

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429.012 Core Autism Symptoms Are Connected to Schizophrenia 429.020 Genetic Etiologies of Catatonia in Patients with Autism Symptoms: Examination of Autism and Schizophrenia Symptom Overlap Spectrum and Other Neurodevelopmental Disorders: A Retrospective Using Network Analysis G. T. Han1, D. A. Trevisan1, J. H. Foss-Feig2, Review and Case Series A. Shillington1, R. Hopkin1, C. A. Erickson1, V. Srihari3, A. Anticevic4 and J. McPartland1, (1)Child Study Center, M. Lamy2, E. Pedapati1, K. Zappia1 and K. Dominick1, (1)Cincinnati Yale University School of Medicine, New Haven, CT, (2)Seaver Autism Children’s Hospital Medical Center, Cincinnati, OH, (2)Division of Child Center for Research and Treatment, Department of Psychiatry, Icahn and Adolescent Psychiatry, Cincinnati Children’s Hospital Medical School of Medicine at Mount Sinai Hospital, New York, NY, (3)Program Center, Cincinnati, OH for Specialized Treatment Early in Psychosis (STEP), Department of Psychiatry, Yale University School of Medicine, New Haven, CT, (4) 429.021 Homotypic and Heterotypic Continuity in Mental Health Division of Neurocognition, Neurocomputation, and Neurogenetics (N3), Symptoms in Autistic Youth: Prediction from Childhood to Adolescence 1 1 1 2 1 Yale University School of Medicine, New Haven, CT V. Carter Leno , S. Chandler , I. Yorke , T. Charman , A. Pickles and E. Simonoff1, (1)King’s College London, Institute of Psychiatry, 429.013 COVID-19 Pandemic Effects in People with Autism Psychology and Neuroscience, London, United Kingdom, (2)Department Spectrum Disorder and Their Caregivers: Evaluation of Social Distancing of Psychology, Institute of Psychiatry, Psychology and Neuroscience, and Lockdown Impact on Mental Health and General Status. J. Lugo King’s College London, London, United Kingdom Marín1, L. Gisbert1, I. Setien1, G. Español Martín1, P. Ibáñez Jiménez1, M. Forner Puntonet1, E. Diez Villoria2, R. Canal-Bedia2 and J. A. ramos- 429.022 Impact of COVID-19 on Stress, Anxiety, and Coping in 1 Quiroga1, (1)Psychiatry, Hospital Universitari Vall d’Hebron, Barcelona, Youth with and without Autism and Their Parents B. A. Corbett , R. A. 1 2 3 Spain, (2)University of Salamanca, Salamanca, Spain Muscatello , M. E. Klemencic and J. M. Schwartzman , (1)Psychiatry and Behavioral Sciences, Vanderbilt University Medical Center, 429.015 Exploring the Associations between Polygenic Risk for Nashville, TN, (2)Vanderbilt University Medical Center, Nashville, TN, (3) Autism, Autistic Traits and Psychotic Experiences until Young Adulthood: Palo Alto University, Palo Alto, CA Evidence from the Alspac Birth Cohort C. Dardani1, R. Schalbroeck2, H. J. Jones1, G. Hammerton3, J. Croft3, P. Madley-Dowd3, S. Sullivan1, 429.023 Incorporating ASD Symptoms into a Transdiagnostic Model S. Zammit4, J. P. Selten5 and D. Rai1, (1)Population Health Sciences, of Internalizing Symptoms Results in an Improved Model for Youth with 1 2 3 4 Bristol Medical School, Centre for Academic Mental Health, Bristol, ASD T. Rosen , C. Rodriguez-seijas , K. D. Gadow and M. D. Lerner , United Kingdom, (2)Rivierduinen Institute for Mental Healthcare, Leiden, (1)University of Colorado School of Medicine, JFK Partners, Aurora, Netherlands, (3)University of Bristol, Bristol, United Kingdom, (4)Division CO, (2)Stony Brook University, Stony Brook, NY, (3)Department of of Psychological Medicine and Clinical Neurosciences,Cardiff University, Psychiatry, Stony Brook University, Stony Brook, NY, (4)Department of Cardiff, United Kingdom, (5)Psychosis Research Group, Rivierduinen Psychology, Stony Brook University, Stony Brook, NY Institute for Mental Healthcare, Leiden, Netherlands 429.024 Insights from Parents and Caregivers: A Systematic Pursuit 429.016 Exploring the Links between Perception, Cognition and of Treatable Conditions in Agitated Individuals with Neurodevelopmental 1 1 2 1 Anxiety in Autistic Adults through the Lens of Hierarchical Predictive Disabilities M. Weaver , W. Worsham , J. Davis , T. P. Singh , P. 3 4 Coding. J. K. Doyle1 and C. E. Wilson2, (1)School of Psychology, Aguayo and D. A. Bilder , (1)University of Utah, Salt Lake City, UT, University of Dublin, Trinity College, Dublin, Dublin 2, Ireland, (2) (2)Educational Psychology, University of Utah, Salt Lake City, UT, (3) Psychology, University of Dublin, Trinity College, Dublin, Ireland Psychiatry, University of Utah, South Salt Lake, UT, (4)Psychiatry, University of Utah, Salt Lake City, UT 429.017 Exploring the Relationship between Sensory Processing Atypicalities, Restricted and Repetitive Behaviours and Depression in 429.025 Intergenerational Trauma in Autism: An Examination of Autistic Adults S. Brice1, J. Bamford2, M. Freeston3, B. Ingham4, A. Adverse Childhood Experiences Among Children with Autism Spectrum LeCouteur1, J. R. Parr1 and J. Rodgers1, (1)Population Health Sciences Disorder and Their Caregivers T. M. Andrzejewski, O. Semones, E. Institute, Newcastle University, Newcastle upon Tyne, United Kingdom, A. DeLucia and C. G. McDonnell, Department of Psychology, Virginia (2)Newcastle University, Newcastle, United Kingdom, (3)School of Polytechnic Institute and State University, Blacksburg, VA Psychology, Newcastle University, Newcastle upon Tyne, United 429.026 Longitudinal Associations between Signs of Attention-Deficit/ Kingdom, (4)Northumberland Tyne and Wear NHS Foundation Trust, Hyperactivity Disorder (ADHD) in Infancy and Toddlerhood and Mid- Newcastle upon Tyne, United Kingdom Childhood Functional Neural Connectivity in Infant Siblings of Autistic 1 2 3 4 429.018 Frontal EEG Asymmetry, Maternal Depression, and Child Children E. Shephard , B. Milosavljevic , L. Mason , R. Haartsen , E. 3 5 6 Internalizing and Externalizing Symptoms in Autism E. Neuhaus1,2, S. J. Jones , M. Johnson and T. Charman , (1)Institute of Psychiatry, J. Lowry1, M. Santhosh3, A. Kresse1, E. J. Libsack4, V. Y. Kang5, R. A. Psychology and Neuroscience, King’s College London, London, United Bernier6, K. A. Pelphrey7, S. J. Webb6 and G. A. Consortium1, (1)Seattle Kingdom of Great Britain and Northern Ireland, (2)Institute of Psychiatry, Children’s Research Institute, Seattle, WA, (2)Psychiatry & Behavioral Psychology and Neuroscience, King’s College London, London, UNITED Sciences, University of Washington, Seattle, WA, (3)Center for Child KINGDOM, (3)Centre for Brain and Cognitive Development, Birkbeck, Health, Behavior and Development, Seattle Children’s Research University of London, London, United Kingdom, (4)Centre for Brain Institute, Seattle, WA, (4)Stony Brook University, Stony Brook, NY, (5) and Cognitive Development, Birkbeck University of London, London, Special Education, University of Illinois at Chicago, Chicago, IL, (6) United Kingdom, (5)Department of Psychology, University of Cambridge, Psychiatry and Behavioral Sciences, University of Washington, Seattle, Cambridge, United Kingdom, (6)Department of Psychology, Institute WA, (7)University of Virginia, Charlottesville, VA of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom 429.019 Gender Nonconformity and the Broader Autism Phenotype in College Students: Links with Mental Health H. K. Schiltz1, A. J. McVey2, I. Seager van Dyk3 and A. V. Van Hecke1, (1)Psychology, Marquette University, Milwaukee, WI, (2)University of British Columbia, Vancouver, BC, Canada, (3)Yale School of Public Health, New Haven, CT 122 • INSAR 2021 VIRTUAL ANNUAL MEETING • EPOSTERS ON-DEMAND ACCESS WITH ONLINE Q&A

429.027 Longitudinal Examination of Sleep Problems Among 429.034 Sex Differences in the Stability of Psychopathology Young Children with Autism Spectrum Disorder A. Zaidman-Zait1, E. Symptoms in Young Children with Autism Q. Lee1, J. K. Lee2, M. Duku2, T. Bennett3, P. Szatmari4, M. Elsabbagh5, S. Georgiades6, P. Solomon2, S. J. Rogers2 and C. W. Nordahl2, (1)UC Davis Neuroscience Mirenda7, I. M. Smith8, C. Waddell9, W. J. Ungar10, T. Vaillancourt11 and Graduate Group, Davis, CA, (2)Department of Psychiatry and Behavioral L. Zwaigenbaum12, (1)Tel-Aviv University, Tel-Aviv, Israel, (2)Offord Sciences, The Medical Investigation of Neurodevelopmental Disorders Centre for Child Studies, McMaster University, Hamilton, ON, Canada, (MIND) Institute, UC Davis School of Medicine, University of California (3)Offord Centre for Child Studies, McMaster University, Hamilton, ON, Davis, Sacramento, CA CANADA, (4)The Hospital for Sick Children, Toronto, ON, Canada, (5) Neurology and Neurosurgery, McGill University, Montreal, QC, Canada, 429.035 Sleep Differences Among Autistic Children with and without 1 1 1,2,3 (6)McMaster Autism Research Team, McMaster University, Hamilton, a History of Suicide H. D. Sanguino , S. J. Howe and C. McMorris , ON, Canada, (7)University of British Columbia, Vancouver, BC, Canada, (1)University of Calgary, Calgary, AB, Canada, (2)Alberta Children’s (8)Dalhousie University / IWK Health Centre, Halifax, NS, CANADA, (9) Hospital Research Institute, University of Calgary, Calgary, AB, Canada, Simon Fraser University, Vancouver, BC, Canada, (10)The Hospital for (3)Werklund School of Education, University of Calgary, Calgary, AB, Sick Children Research Institute, Toronto, ON, Canada, (11)University of Canada Ottawa, Ottawa, ON, Canada, (12)University of Alberta, Edmonton, AB, 429.036 Sleep Disturbances in Autism Spectrum Disorder: Canada Relationship with Autism Severity, Executive Function and Psychiatric 1 1 1 1 429.028 Medical, Developmental, and Behavioral Associations with Symptoms. L. Gisbert , J. Lugo Marín , I. Setien , P. Ibáñez Jiménez , 2 2 3 Sleep Problems in Young Children A. M. Reynolds1, J. Brinton2, G. N. O. Romero Santo-Tomás , M. J. Jurado Luque , P. Ballester-Navarro , E. 4 4 1 Soke3, T. Katz4, L. Wiggins3, L. J. Meltzer5, L. Schieve3, L. A. Croen6, Diez Villoria , R. Canal-Bedia and J. A. ramos-Quiroga , (1)Psychiatry, K. R. Sabourin7 and S. E. Levy8, (1)University of Colorado School of Hospital Universitari Vall d’Hebron, Barcelona, Spain, (2)Sleep Unit, Medicine, Aurora, CO, (2)University of Colorado Denver School of Hospital Universitari Vall d’Hebron, Barcelona, Spain, (3)Hospital Medicine, Aurora, CO, (3)Centers for Disease Control and Prevention, General Universitario de Aucante, Alicante, Spain, (4)University of Atlanta, GA, (4)Department of Pediatrics, University of Colorado School Salamanca, Salamanca, Spain of Medicine, Aurora, CO, (5)Pediatric Behavioral Health, National Jewish 429.038 The Comorbidity between Autism Spectrum Disorder and Health, Denver, CO, (6)Division of Research, Kaiser Permanente, Post-Traumatic Stress Disorder Is Mediated By Brooding Rumination O. Oakland, CA, (7)University of Colorado Anschutz Medical Campus, Golan1,2, N. Haruvi Lamdan1, N. Laor2,3 and D. Horesh1,2, (1)Department Aurora, CO, (8)Division of Developmental and Behavioral Pediatrics, of Psychology, Bar-Ilan University, Ramat-Gan, Israel, (2)Association for Center for Autism Research, Children’s Hospital of Philadelphia; Children at Risk, Givat-Shmuel, Israel, (3)Sackler School of Medicine, Perelman School of Medicine at the University of Pennsylvania, Tel-Aviv University, Tel-Aviv, Israel Philadelphia, PA 429.039 The Etiology of Comorbid Physical Problems in Autism— a 429.030 Predictors of Adaptive Functioning in Autism Spectrum Nationwide Population-Based Twin Study P. Y. Pan1 and S. Bolte2, (1) Disorders from Early Childhood to Adolescence S. Chandler1, I. Yorke1, Department of Women’s and Children’s Health, Karolinska Institutet, V. Carter Leno1, G. Baird2, A. Pickles1, T. Charman3 and E. Simonoff1, Stockholm, Sweden, (2)Center of Neurodevelopmental Disorders (KIND), (1)King’s College London, Institute of Psychiatry, Psychology and Centre for Psychiatry Research; Department of Women’s and Children’s Neuroscience, London, United Kingdom, (2)Guy’s and St Thomas’ Health, Karolinska Institutet, & Stockholm Health Care Services, Region NHS Foundation Trust, London, United Kingdom, (3)Department of Stockholm, Stockholm, Sweden Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom 429.040 The Hierarchical Taxonomy of Psychopathology as the Next Frontier for Understanding Comorbidity in Autism: An Empirically 429.031 Prevalence of Parent-Reported Feeding Concerns in Based Approach to Delineating the Structure of Autism, Internalizing, Children with Autism Spectrum Disorder: A Cross-Sectional Study and Externalizing Symptoms M. R. Altschuler1, G. Michelini2, J. T. of Patients Evaluated at a Tertiary Care Center E. S. Kuschner1, S. Elison3 and S. Wilson1, (1)Institute of Child Development & Department Sivathasan2, E. McQueen3, R. Berry4, S. White5, W. Sharp4 and C. of Psychology, University of Minnesota, Minneapolis, MN, (2)Semel Klaiman6, (1)Lurie Family Foundations MEG Imaging Center, Department Institute for Neuroscience & Human Behavior, Department of Psychiatry of Radiology, Children’s Hospital of Philadelphia, Philadelphia, PA, (2) & Biobehavioral Sciences, University of California Los Angeles, Los Educational & Counselling Psychology, McGill University, Montreal, QC, Angeles, CA, (3)University of Minnesota, Minneapolis, MN Canada, (3)Department of Allied Health Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, (4)Marcus Autism Center, 429.041 The Impact of the Comorbidity of ASD and ADHD on Social Atlanta, GA, (5)Marcus Autism Center, Emory University School of Impairment C. M. Harkins and M. O. Mazurek, University of Virginia, Medicine, Atlanta, GA, (6)Marcus Autism Center, Children’s Healthcare Charlottesville, VA of Atlanta and Emory University School of Medicine, Atlanta, GA 429.042 The Relationship between Sensory Reactivity, Intolerance 429.032 Racial/Ethnic Disparities in Psychiatric and Medical of Uncertainty and Anxiety Subtypes in Preschool-Age Autistic Children Diagnoses Among Autistic Adults J. L. Ames, L. A. Croen, M. L. K. MacLennan1, T. Rossow2 and T. Tavassoli1, (1)Centre for Autism, Massolo and Y. Qian, Division of Research, Kaiser Permanente, School of Psychology & Clinical Language Sciences, University of Oakland, CA Reading, Reading, United Kingdom, (2)Centre for Autism, School of Psychology & Clinical Language Sciences, University or Reading, 429.033 Self-Report of Emotion Regulation Impairment: Initial Reading, United Kingdom Analyses of Response Patterns C. M. Conner1, S. W. White2 and C. A. Mazefsky1, (1)Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, (2)Psychology, The University of Alabama, Tuscaloosa, AL

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429.043 The Role of Fatigue and Social Wellbeing in Depressive 430.002 The Clinical and Molecular Consequences of Variation in the Symptomatology in Autistic Older Adolescents and Young Adults A. Chromodomain DNA Helicase Binding Protein (CHD) Gene Family M. L. Richdale1,2, L. P. Lawson1,2, A. Haschek1,2, S. M. Hayward1,2, I. A. Gillentine1, E. E. Eichler2, T. Wang3, K. Hoekzema1, J. Rosenfeld4, Abdullahi1,2 and E. Morris3, (1)Olga Tennison Autism Research Centre, P. Liu5, T. Nowakowski6, M. Nordenskjold7, J. Gecz8, R. K. Earl9, F. La Trobe University, Melbourne, VIC, Australia, (2)Cooperative Research Kooy10, X. Kun3 and M. I. Valenzuela Palafoll11, (1)Genome Sciences, Centre for Living with Autism (Autism CRC), Brisbane, QLD, Australia, University of Washington, Seattle, WA, (2)Department of Genome (3)Pyschology & Counselling, La Trobe University, Melbourne, Australia Sciences, University of Washington, Seattle, WA, (3)Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, 429.044 Understanding Autistic People’s Experiences of Anxiety: China, (4)Baylor College of Medicine, Houston, TX, (5)Baylor Genetics, 1 2 2 Findings from a National Cohort Study E. Lomax , S. Brice , C. Wilson , Houston, TX, (6)University of California San Francisco, San Francisco, 2,3 2 2 2,3 B. Ingham , A. LeCouteur , J. Rodgers and J. R. Parr , (1)School CA, (7)Karolinska Institutet, Stockholm, Sweden, (8)Adelaide Medical of Psychology, Newcastle University, Newcastle upon Tyne, United School and the Robinson Research Institute, University of Adelaide, Kingdom, (2)Population Health Sciences Institute, Newcastle University, Adelaide, Australia, Adelaide, SA, Australia, (9)Psychiatry and Behavioral Newcastle upon Tyne, United Kingdom, (3)Cumbria, Northumberland, Sciences, University of Washington, Seattle, WA, (10)Department of Tyne and Wear NHS Foundation Trust, Newcastle upon Tyne, United Medical Genetics, University of Antwerp, Edegem, Belgium, (11)Hospital Kingdom Vall d’Hebron, Barcelona, Spain

429.045 Understanding the Role of Sex in Depression Symptoms 430.003 The Genetic Characterization of Probands with Autism in Early Adolescents with and without Autism Spectrum Disorder J. M. Spectrum Disorder and Their Extended Family Members J. Zhang1, 1 2 1 Schwartzman , Z. J. Williams and B. A. Corbett , (1)Psychiatry and A. Ghorai2, S. C. Taylor3, H. C. Dow2,4, B. N. Gehringer2,4, A. Langer2,4, Behavioral Sciences, Vanderbilt University Medical Center, Nashville, E. Rawot2,4, L. S. Perez2,4, M. H. Goodman2,4, A. A. Pallathra5, S. TN, (2)Medical Scientist Training Program, Vanderbilt University School D. Elkhatib Smidt2,6, D. J. Rader2, L. Almasy2,7, E. S. Brodkin4 and of Medicine, Nashville, TN M. Bucan2, (1)Graduate Group in Epidemiology and Biostatistics, University of Pennsylvania, Philadelphia, PA, (2)Department of Genetics, 429.046 Utility of Complex Trauma Questionnaires for Adults on the University of Pennsylvania, Philadelphia, PA, (3)Graduate Group Autism Spectrum with Mild Intellectual Disability: A Systematic Review in Neuroscience, University of Pennsylvania, Philadelphia, PA, (4) I. McKinnon1, S. Wigham1, K. Reid2, D. Milton3, R. Lingam2 and J. Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, Rodgers1, (1)Population Health Sciences Institute, Newcastle University, (5)Department of Psychiatry, Catholic University of America, Washington, Newcastle upon Tyne, United Kingdom, (2)Cumbria, Northumberland DC, (6)Division of Neurology and Sleep Center, Children’s Hospital of Tyne and Wear NHS Foundation Trust, Newcastle upon Tyne, United Philadelphia, Philadelphia, PA, (7)Department of Biomedical and Health Kingdom, (3)Tizard Centre, University of Kent, Canterbury, United Informatics, Children’s Hospital of Philadelphia, Philadelphia, PA Kingdom 430.004 Whole Exome Sequencing Reveals Complex Genetic Architecture of Autism Spectrum Disorder in an Israeli Population A. Poster Session Shil1,2, R. Tal1,2, H. Abukaf2,3, H. Golan2,3, G. Meiri2,4, H. Flusser2,5, A. Poster 430 - Molecular Genetics Michaelovski2,5, I. Dinstein2,6 and I. Menashe1,2, (1)Public Health, Ben Gurion University, Beer Sheva, Israel, (2)National Autism Research Center, Beer Sheva, Israel, (3)Physiology, Ben-Gurion University of 430.001 Integrated Analysis of 28,642 Individuals Recruited Online the Negev, Beer Sheva, Israel, (4)Preschool Psychiatric Unit, Soroka Identifies New ASD Risk Genes and Highlights the Interplay of De Novo University Medical Center, Beer Sheva, Israel, (5)Child Development 1 2 3 1 and Inherited Variants P. Feliciano , X. Zhou , T. Wang , J. B. Hall , Center, Soroka University Medical Center, Beer Sheva, Israel, (6) 4 2 2 5 6 S. C. Murali , N. Zhu , S. Bruce , I. Astrovskaya , L. Brueggeman , J. Department of Psychology, Ben-Gurion University of the Negev, Beer 1 5 5 1 7 R. Wright , S. Xu , O. Marchenko , C. Fleisch , T. S. Chang , L. Green Sheva, Israel Snyder5, T. N. Turner8, B. Han5, W. Harvey4, A. Nishida9, S. D. Barns5, R. N. Doan10, A. Soucy10, S. Consortium11, B. J. O’Roak9, T. Yu12, D. Geschwind7, J. Michaelson13, N. Volfovsky5, E. E. Eichler4, Y. Shen2, Y. Shen2 and W. K. Chung14, (1)SFARI, Simons Foundation, New York, Poster Session NY, (2)Department of Systems Biology, Columbia University, New York, Poster 431 - Molecular Neuroscience NY, (3)Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, China, (4)Department of Genome Sciences, 431.002 Circulating Noncoding RNAs As a Signature of Autism University of Washington, Seattle, WA, (5)Simons Foundation, New Spectrum Disorder Symptomatology S. Salloum-Asfar1, K. Errafii1,2, York, NY, (6)Psychiatry, University of Iowa, Iowa City, IA, (7)University S. F. Elhag1, N. J. Satheesh1 and S. A. Abdulla1, (1)Qatar Biomedical of California, Los Angeles, Los Angeles, CA, (8)Department of Genetics, Research Institute (QBRI), HBKU, Qatar Foundation, Doha, Qatar, (2) Washington University in St. Louis, St. Louis, MO, (9)Molecular & College of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Medical Genetics, Oregon Health & Science University, Portland, OR, Foundation, Education City, Doha, Qatar., Doha, Qatar (10)Boston Children’s Hospital, Boston, MA, (11)SPARKForAutism.org, New York, NY, (12)Harvard Medical School, Boston, MA, (13)Division of 431.003 Transcriptome-(Phospho)Proteome Characterization of Computational and Molecular Psychiatry, Iowa City, IA, (14)Department the Brain of a Constitutional Model of Cytoplasmic-Predominant Pten of Pediatrics, Columbia University, New York, NY Expression with Autism-like Phenotypes S. T. Thacker1 and C. Eng2, (1)Genomic Medicine Institute, Lerner Research Institute of Cleveland Clinic, Cleveland, OH, (2)Genomic Medicine, Cleveland Clinic, Cleveland, OH

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Poster Session 434.005 Amygdala-Rostral Anterior Cingulate Cortex Connectivity Changes in Children and Young People with ASD Receiving AB-2004

Poster 433 - Neurochemistry G. M. Preston1, C. S. Meyer1, A. C. Janes2, B. Federick2, M. P. Daly3, C. Larkin3, H. Heussler3, R. Griffith4, A. J. Guastella5 and S. Campbell1, 433.001 Neuronal Damage Associated NAA-Naag Metabolism (1)Axial Therapeutics, Inc., Waltham, MA, (2)Department of Psychiatry, Imbalance and Socio-Communicative Impairments Correlation in ASD. C. Harvard Medical School & McLean Hospital, Belmont, MA, (3)Centre D. Jimenez-Espinoza, Physiology, University of La Laguna, Santa Cruz for Clinical Trials in Rare Neurodevelopmental Disorders, Queensland de Tenerife, Spain Children’s Hospital, Brisbane, QLD, Australia, (4)Optimal Clinical Trials, Auckland, New Zealand, (5)Brain and Mind Centre, Children’s Hospital Westmead Clinical School, Faculty of Medicine and Health, University of Poster Session Sydney, Sydney, NSW, Australia Poster 434 - Neuroimaging 434.006 Association of Amygdala Volume and Development with Anxiety in Autism Spectrum Disorder D. S. Andrews1, L. Aksman2, 434.001 A Connectome-Wide Mega-Analysis of Functional C. M. Kerns3, J. K. Lee1, E. Waizbard-Bartov4, M. Solomon1, S. J. Dysconnectivity in Autism Spectrum Disorder I. Ilioska1,2, M. Oldehinkel1, Rogers1, A. Altman5, C. W. Nordahl1 and D. G. Amaral1, (1)Department A. Llera3, M. Mennes1, C. Beckmann3,4, A. Fornito2 and J. K. Buitelaar3,5, of Psychiatry and Behavioral Sciences, The Medical Investigation of (1)Department of Cognitive Neuroscience, Donders Institute for Brain, Neurodevelopmental Disorders (MIND) Institute, UC Davis School of Cognition and Behaviour, Nijmegen, Netherlands, (2)Turner Institute for Medicine, University of California Davis, Sacramento, CA, (2)USC, Los Brain and Mental Health, School of Psychological Sciences, and Monash Angeles, CA, (3)University of British Columbia, Vancouver, BC, Canada, Biomedical Imaging, Monash University, Melbourne, VIC, Australia, (3) (4)UC Davis, Davis, CA, (5)UCL, London, United Kingdom Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, 434.007 Atypical Cerebellar Activity during Sensory Stimulation 1 2 3 Nijmegen, Netherlands, (4)Centre for Functional MRI of the Brain in ASD Youth M. E. Cakar , K. K. Cummings , N. J. Okada , S. Y. 3 3 3 (FMRIB), University of Oxford, Oxford, United Kingdom, (5)Karakter Child Bookheimer , M. Dapretto and S. A. Green , (1)Interdepartmental and Adolescent Psychiatry University Center, Nijmegen, Netherlands Neuroscience Program, University of California, Los Angeles, Los Angeles, CA, (2)Semel Institute of Neuroscience and Human Behavior, 434.002 Altered Cerebellar White Matter in Sensory Processing University of California, Los Angeles, Los Angeles, CA, (3)Dept of Dysfunction Is Associated with Impaired Multisensory Integration and Psychiatry and Biobehavioral Sciences, University of California, Los Attention M. A. Rowe1,2, A. Narayan1,3, E. M. Palacios1, J. Wren-Jarvis1, Angeles, Los Angeles, CA I. Bourla1, S. Desai1, E. J. Marco2 and P. Mukherjee1,4, (1)Department of Radiology and Biomedical Imaging, University of California, San 434.008 Atypical Development of Emotional Face Processing Francisco, San Francisco, CA, (2)Neurodevelopmental Medicine, Networks in Autism Spectrum Disorder from Childhood through to 1 2 3 Cortica Healthcare, San Rafael, CA, (3)Department of Medicine, Tulane Adulthood K. Safar , M. M. Vandewouw and M. J. Taylor , (1)Diagnostic University School of Medicine, New Orleans, LA, (4)Department of Imaging, Hospital for Sick Children, Toronto, ON, Canada, (2)Program in Bioengineering and Therapeutic Sciences, University of California, San Neuroscience & Mental Health, The Hospital for Sick Children, Toronto, Francisco, San Francisco, CA ON, Canada, (3)The Hospital for Sick Children, Toronto, ON, Canada

434.003 Altered Patterns of Brain Dynamics Linked with Body Mass 434.010 Autism Diagnosis Prediction from Inter-Subject Similarity 1 2 3 Index in Youth with Autism L. Kupis1, Z. T. Goodman2, L. Kircher2, C. of Video-Evoked fMRI Timeseries L. Byrge , D. Kliemann , U. Keles , 4 5 6 Romero1, B. Dirks1, C. Chang3, J. S. Nomi1 and L. Uddin1, (1)University H. Saarimäki , R. Adolphs and D. P. Kennedy , (1)University of North of Miami, Coral Gables, FL, (2)University of Miami, South Miami, FL, (3) Florida, Jacksonville, FL, (2)University of Iowa, Iowa City, IA, (3) Vanderbilt University, Nashville, TN California Institute of Technology, Pasadena, CA, (4)Tampere University, Tampere, Finland, (5)Caltech, Pasadena, CA, (6)Psychological and Brain 434.004 Amygdala Connectivity As a Marker for Social Functioning Sciences, Indiana University, Bloomington, IN in Autism Spectrum Disorder G. Bussu1, K. V. Haak2, T. Bourgeron3, F. Campana4, J. Tillmann5, T. Charman6, E. Loth7, D. Murphy7, C. 434.011 Brain Structural Correlates of Autistic Traits across Beckmann8, J. K. Buitelaar9 and L. G. EU-AIMS10, (1)Donders Institute for the Diagnostic Divide: A Surface Based Morphometry Study V. 1 2 3 4 Brain, Cognition and Behaviour, Radboudumc, Nijmegen, Netherlands, Arunachalam Chandran , C. Pliatsikas , J. Neufeld , G. O’Connell , 5 1 (2)Radboud University Medical Center Nijmegen, Donders Institute for A. Haffey and B. Chakrabarti , (1)Centre for Autism, School of Brain, Cognition and Behaviour, Department of Cognitive Neuroscience, Psychology & Clinical Language Sciences, University of Reading, Nijmegen, Netherlands, (3)Human Genetics and Cognitive Functions, Reading, United Kingdom, (2)School of Psychology & Clinical Language Institut Pasteur, Paris, France, (4)Institut Pasteur, Paris, France, (5) Sciences, University of Reading, Reading, United Kingdom, (3)Center of Institute of Psychiatry, Psychology and Neuroscience, King’s College Neurodevelopmental Disorders (KIND), Centre for Psychiatry Research; London, London, United Kingdom, (6)Department of Psychology, Department of Women’s and Children’s Health, Karolinska Institutet, Institute of Psychiatry, Psychology and Neuroscience, King’s College & Stockholm Health Care Services, Region Stockholm, Srockholm, London, London, United Kingdom, (7)Department of Forensic and Sweden, (4)School of Mind and Brain, Humboldt University, Berlin, Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Germany, (5)School of Psychology and Clinical Language Sciences, Neuroscience, King’s College London, London, United Kingdom, (8) University of Reading, Reading, United Kingdom Centre for Functional MRI of the Brain (FMRIB), University of Oxford, Oxford, United Kingdom, (9)Department of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, (10)EU-AIMS Organization, London, United Kingdom

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434.013 Corpus Callosum Structure and Inter-Hemispheric Functional 434.017 Examining Volumetric Gradients Based on the Frustum Connectivity in Autism Spectrum Disorder M. E. Beckerson1,2, N. Surface Ratio in the Brain in Autism Spectrum Disorder C. Mann1, Loomba3, C. Ammons4 and R. K. Kana1,2, (1)Department of Psychology, T. Schäfer1, A. Bletsch1, M. Gudbrandsen2, E. Daly3, J. Suckling4, University of Alabama, Tuscaloosa, AL, (2)Center for Innovative E. Bullmore5, M. V. Lombardo6, M. C. Lai7, M. Craig2, *. MRC AIMS Research in Autism, Tuscaloosa, AL, (3)Vanderbilt University, Nashville, Consortium8, S. Baron-Cohen4, D. Murphy3 and C. Ecker9, (1) TN, (4)Emory University School of Medicine, Children’s Healthcare of Department of Child and Adolescent Psychiatry, Psychosomatics Atlanta, Atlanta, GA and Psychotherapy, Goethe-University Frankfurt am Main, Frankfurt, Germany, (2)Department of Forensic and Neurodevelopmental 434.014 Cortical Gyrification Morphology in ASD and ADHD: Sciences, and the Sackler Institute for Translational Neurodevelopment, Implication for Further Similarities or Disorder-Specific Features? Institute of Psychiatry, Psychology and Neuroscience, King’s College 1 2 3 4 A. Gharehgazlou , M. M. Vandewouw , J. Ziolkowski , J. Wong , J. London, London, United Kingdom, (3)Department of Forensic and 5 6 7 8 9 Crosbie , R. Schachar , R. Nicolson , S. Georgiades , E. Kelley , M. Neurodevelopmental Sciences, Institute of Psychiatry, Psychology 9 10 11 12 13 Ayub , S. Ameis , M. J. Taylor , J. P. Lerch and E. Anagnostou , (1) and Neuroscience, King’s College London, London, United Kingdom, Institute of Medical Science, University of Toronto, Toronto, ON, Canada, (4)Autism Research Centre, Department of Psychiatry, University (2)Program in Neuroscience & Mental Health, The Hospital for Sick of Cambridge, Cambridge, United Kingdom, (5)Brain Mapping Unit, Children, Toronto, ON, Canada, (3)McGill University, Montreal, QC, Department of Psychiatry, University of Cambridge, UK, Cambridge, Canada, (4)University of Toronto, Toronto, ON, Canada, (5)Psychology, United Kingdom, (6)Center for Neuroscience and Cognitive Systems, The Hospital for Sick Children, Toronto, ON, Canada, (6)Psychiatry, Laboratory for Autism and Neurodevelopmental Disorders, Istituto The Hospital for Sick Children, Toronto, ON, Canada, (7)University of Italiano di Tecnologia, Rovereto, Italy, (7)Autism Research Centre, Western Ontario, London, ON, Canada, (8)McMaster Autism Research Department of Psychiatry, University of Cambridge, Cambridge, ON, Team, McMaster University, Hamilton, ON, Canada, (9)Queen’s United Kingdom, (8)University of Cambridge, Cambridge, United University, Kingston, ON, Canada, (10)The Margaret and Wallace Kingdom, (9)Department of Child and Adolescent Psychiatry, University McCain Centre for Child, Youth, & Family Mental Health, Campbell Hospital, Goethe University, Frankfurt am Main, Frankfurt, Germany Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada, (11)The Hospital for Sick Children, 434.018 Extra-Axial Cerebrospinal Fluid Volume Normalizes with Toronto, ON, Canada, (12)Wellcome Centre for Integrative Neuroimaging Age in Autistic Individuals M. Peterson1, M. D. Prigge2, E. Bigler1, B. A. (WIN), University of Oxford, Oxford, ON, United Kingdom, (13)Autism Zielinski3, J. B. King4, N. Lange5, A. L. Alexander6, J. E. Lainhart7 and J. Research Center, Bloorview Research Institute, Holland Bloorview Kids A. Nielsen8, (1)Brigham Young University, Provo, UT, (2)Developmental Rehabilitation Hospital, Toronto, ON, Canada Network Neurobiology Laboratory, University of Utah, Salt Lake City, UT, (3)Pediatrics and Neurology, University of Utah, Salt Lake City, UT, (4) 434.015 Cortical Myelination in Toddlers and Preschoolers with University of Utah, Salt Lake City, UT, (5)McLean Hospital, Cambridge, 1 2 3 2 Autism Spectrum Disorder B. Chen , A. C. Linke , L. Olson , J. S. Kohli , MA, (6)Medical Physics & Psychiatry, University of Wisconsin - Madison, 2 2 2 2 M. C. Arcadio Arce , I. A. Martindale , S. R. Peña , R. A. Müller , R. A. Madison, WI, (7)Psychiatry, University of Wisconsin - Madison, Madison, 2 1 2 Carper , M. Sereno and I. Fishman , (1)San Diego State University, WI, (8)Harvard University, Cambridge, UT San Diego, CA, (2)Brain Development Imaging Laboratories, San Diego State University, San Diego, CA, (3)Joint Doctoral Program in Clinical 434.019 Functional Lateralization of Language Processing Psychology, SDSU/UC San Diego, San Diego, CA in Individuals with a History of ASD, Current ASD, and Typical Development H. R. Thomas1, M. J. Stabile1, D. A. Fein1, M. C. Stevens2 434.016 Developmental Predictors of the Fusiform Gyrus Cortical and I. M. Eigsti1, (1)Psychological Sciences, University of Connecticut, 1 2 Morphology L. E. Duvall and R. K. Kana , (1)Psychology, University of Storrs, CT, (2)Olin Neuropsychiatry Research Center, Hartford Hospital, Alabama, Tuscaloosa, AL, (2)Department of Psychology, University of Hartford, CT Alabama, Tuscaloosa, AL 434.021 Longitudinal Analysis of Amygdala Connected Cortical and Limbic Regions J. K. Lee1, D. S. Andrews1, M. Solomon1, S. J. Rogers1, S. Ozonoff2, D. G. Amaral1 and C. W. Nordahl1, (1)Department of Psychiatry and Behavioral Sciences, The Medical Investigation of Neurodevelopmental Disorders (MIND) Institute, UC Davis School of Medicine, University of California Davis, Sacramento, CA, (2)Psychiatry and Behavioral Sciences, University of California at Davis, MIND Institute, Sacramento, CA

126 • INSAR 2021 VIRTUAL ANNUAL MEETING • EPOSTERS ON-DEMAND ACCESS WITH ONLINE Q&A

434.022 Lower Sex Prediction Accuracy in Females with Autism 434.027 Shared or Distinct? - Neuroanatomical Underpinnings of Supports the Extreme Male Brain Theory D. Floris1, H. Peng2, T. ASD in Carriers and Non-Carriers of the 22q11.2 Microdeletion A. Charman3, J. Tillmann4, C. Ecker5, F. dell’Acqua6, T. Banaschewski7, Bletsch1,2, M. Gudbrandsen3, C. Mann1,2, E. Daly3, C. M. Murphy3,4, C. Moessnang8, R. Holt9, S. Durston10, E. Loth6, D. Murphy6, J. K. V. Stoencheva3,4, C. E. Blackmore3,4, M. Rogdaki5,6,7, L. Kushan8, C. Buitelaar11, S. Baron-Cohen9, A. Vedaldi2, S. M. Smith2, C. Beckmann12 Bearden8, D. Murphy3,4, M. Craig3,9 and C. Ecker2,3,10, (1)Department of and L. G. EU-AIMS13, (1)Donders Centre for Cognitive Neuroimaging, Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, Nijmegen, Netherlands, (2)University of Oxford, Oxford, United Kingdom, Goethe-University Frankfurt am Main, Frankfurt, Germany, (2)Brain (3)Department of Psychology, Institute of Psychiatry, Psychology Imaging Center, Goethe University, Frankfurt, Germany, (3)Department and Neuroscience, King’s College London, London, United Kingdom, of Forensic and Neurodevelopmental Sciences, and the Sackler Institute (4)Institute of Psychiatry, Psychology and Neuroscience, King’s for Translational Neurodevelopment, Institute of Psychiatry, Psychology College London, London, United Kingdom, (5)Department of Child and Neuroscience, King’s College London, London, United Kingdom, and Adolescent Psychiatry, University Hospital, Goethe University, (4)Behavioural Genetics Clinic, Adult Autism Service, Behavioural and Frankfurt am Main, Frankfurt, Germany, (6)Department of Forensic Developmental Psychiatry Clinical Academic Group, South London and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Maudsley Foundation NHS Trust, London, United Kingdom, (5) and Neuroscience, King’s College London, London, United Kingdom, Department of Child and Adolescent Psychiatry, Institute of Psychiatry, (7)Department of Child and Adolescent Psychiatry, Central Institute Psychology and Neuroscience, King’s College, London, United Kingdom, of Mental Health, University of Heidelberg, Mannheim, Germany, (8) (6)Psychiatric Imaging Group, MRC London Institute of Medical Department of Psychiatry and Psychotherapy, Central Institute of Mental Sciences, Imperial College, London, United Kingdom, (7)Department of Health, University of Heidelberg, Mannheim, Germany, (9)Autism Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, Research Centre, Department of Psychiatry, University of Cambridge, King’s College, London, United Kingdom, (8)Department of Psychiatry Cambridge, United Kingdom, (10)Department of Psychiatry, Brain Center and Biobehavioral Sciences, Semel Institute for Neuroscience and Rudolf Magnus, University Medical Center Utrecht, Utrecht, Netherlands, Human Behavior and Department of Psychology, University of California- (11)Department of Cognitive Neuroscience, Donders Institute for Brain, Los Angeles, Los Angeles, CA, (9)National Autism Unit, Bethlem Cognition and Behaviour, Radboud University Nijmegen Medical Centre, Royal Hospital, London, United Kingdom, (10)Department of Child and Nijmegen, Netherlands, (12)Centre for Functional MRI of the Brain Adolescent Psychiatry, University Hospital, Goethe University, Frankfurt (FMRIB), University of Oxford, Oxford, United Kingdom, (13)EU-AIMS am Main, Frankfurt, Germany Organization, London, United Kingdom 434.028 Social and Repetitive Behaviours in Youth with Autism 434.023 Microstructural Neural Correlates of Maximal Grip Strength Spectrum Disorder and the Association with Amygdala Subnuclei in Children and Adolescents on the Autism Spectrum O. J. Surgent1, D. Maturation D. Seguin1, S. Pac1, J. Chen1, R. Nicolson2, J. Martinez- C. Dean2, A. L. Alexander3 and B. G. Travers1, (1)University of Wisconsin Trujillo1 and E. Duerden1, (1)Western University, London, ON, Canada, - Madison, Madison, WI, (2)Pediatrics & Medical Physics, University of (2)University of Western Ontario, London, ON, Canada Wisconsin - Madison, Madison, WI, (3)Medical Physics & Psychiatry, University of Wisconsin - Madison, Madison, WI 434.029 Somatosensory-Evoked Potentials Associate with Tactile Sensitivity in Early Childhood Autism S. Espenhahn1,2,3,4, K. J. 434.024 Motion Sensitivity and Visual Gamma Oscillations in Godfrey2,3,4,5, S. Kaur2,3,4, M. Ross2,3,4, C. McMorris2,6,7,8,9, F. Cortese1,4, Children with ASD V. O. Manyukhina1,2, E. V. Orekhova1,3, A. O. C. Wright3, K. Murias2,4,5,6, D. Dewey2,4,6,10, A. B. Protzner4,7,11, A. Prokofyev1 and T. A. Stroganova1, (1)MEG-Center, Moscow University McCrimmon2,8, S. Bray1,2,3,4,6 and A. D. Harris1,2,3,4,6, (1)Department of of Psychology and Education (MSUPE), Moscow, Russian Federation, Radiology, University of Calgary, Calgary, AB, Canada, (2)Alberta (2)National Research University Higher School of Economics, Moscow, Children’s Hospital Research Institute, University of Calgary, Calgary, Russian Federation, (3)MedTech West and the Institute of Neuroscience AB, Canada, (3)Child and Adolescent Imaging Research (CAIR) and Physiology, Sahlgrenska Academy, the University of Gothenburg, Program, University of Calgary, Calgary, AB, Canada, (4)Hotchkiss Brain Gothenburg, Sweden Institute, University of Calgary, Calgary, AB, Canada, (5)Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada, 434.025 Multivariate Analysis of Atypical Patterns of fMRI (6)Department of Paediatrics, University of Calgary, Calgary, AB, 1 1 2 Connectivity Modulation in ASD T. Looden , D. Floris , A. Llera , J. Canada, (7)The Mathison Centre for Mental Health Research and 2 2 K. Buitelaar and C. Beckmann , (1)Donders Centre for Cognitive Education, University of Calgary, Calgary, AB, Canada, (8)Werklund Neuroimaging, Nijmegen, Netherlands, (2)Department of Cognitive School of Education, University of Calgary, Calgary, AB, Canada, (9) Neuroscience, Donders Institute for Brain, Cognition and Behaviour, University of Calgary, Calgary, AB, Canada, (10)Community Health Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands Sciences, University of Calgary, Calgary, AB, Canada, (11)Department of Psychology, University of Calgary, Calgary, AB, Canada 434.026 Robust and Interpretable Brain Signatures of Autism and 1 2 Predictors of Clinical Symptom Severity K. Supekar , S. Ryali , D. 434.030 Structural Growth Trajectories and Rates of Change of Infant 2 2 2 Kumar , C. De Los Angeles and V. Menon , (1)Stanford University Brain Development in the First Six Months of Life L. Li1, P. Y. Wong1, School of Medicine, Stanford, CA, (2)Stanford University, Stanford, CA W. Jones2, A. Klin2 and S. Shultz2, (1)Marcus Autism Center, Children’s Healthcare of Atlanta, Emory University, Atlanta, GA, (2)Marcus Autism Center, Children’s Healthcare of Atlanta and Emory University School of Medicine, Atlanta, GA

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Poster Session 435.008 Obtaining Valid ERP Data: Implementing a Single Session Behavioral Protocol for Valid EEG Data Collection C. J. Black1, M. Poster 435 - Neurophysiology/electrophysiology Guy2, A. L. Hogan1, R. E. Coyle3, J. E. Richards4 and J. Roberts1, (1) Department of Psychology, University of South Carolina, Columbia, 435.001 Anticipation of Social and Non-Social Rewards in Youth SC, (2)Loyola University Chicago, Chicago, IL, (3)Psychology, USC 1 2 1 with and without ASD C. M. Keifer , T. C. Day , B. D. Nelson , J. M. Neurodevelpomental Disorders Lab, Columbia, SC, (4)University of 3 3 4 Jarcho , T. Clarkson and M. D. Lerner , (1)Stony Brook University, South Carolina, Columbia, SC Stony Brook, NY, (2)Psychology, Stony Brook University, Stony Brook, NY, (3)Psychology, Temple University, Philadelphia, PA, (4)Department 435.009 Phase-Amplitude Coupling in Autism Spectrum Disorder: of Psychology, Stony Brook University, Stony Brook, NY Results from the Autism Biomarkers Consortium for Clinical Trials (ABC- CT) F. Peck1, A. Naples2, S. J. Webb3, R. A. Bernier3, K. Chawarska2, G. 435.002 EEG Study of Local and Global Perception in Children with Dawson4, J. Dziura5, S. Faja6, S. Jeste7, N. M. Kleinhans8, C. A. Nelson9, Autism and Children with an Increased Likelihood of Synaesthesia T. M. H. Seow5, F. Shic10, C. Sugar7, D. Senturk11, J. McPartland2 and A. R. 1 1 1 1 van Leeuwen , M. Druyvesteyn , C. K. Donaldson , E. van Petersen , Levin1, (1)Neurology, Boston Children’s Hospital, Boston, MA, (2)Child 2 2,3 1,4 M. Van Dongen - Boomsma , J. K. Buitelaar , S. Hunnius and R. van Study Center, Yale University School of Medicine, New Haven, CT, (3) 1 Lier , (1)Donders Institute for Brain, Cognition and Behaviour, Radboud Psychiatry and Behavioral Sciences, University of Washington, Seattle, University, Nijmegen, Netherlands, (2)Karakter Child and Adolescent WA, (4)Department of Psychiatry and Behavioral Sciences, Duke Center Psychiatry University Center, Nijmegen, Netherlands, (3)Department for Autism and Brain Development, Durham, NC, (5)Yale University, New of Cognitive Neuroscience, Donders Institute for Brain, Cognition and Haven, CT, (6)Boston Children’s Hospital, Boston, MA, (7)University of Behaviour, Radboud University Nijmegen Medical Centre, Nijmegen, California, Los Angeles, Los Angeles, CA, (8)University of Washington, Netherlands, (4)Baby and Child Research Center, Radboud University, Seattle, WA, (9)Developmental Medicine, Boston Children’s Hospital, Nijmegen, Netherlands Boston, MA, (10)Center for Child Health, Behavior and Development, Seattle Children’s Research Institute, Seattle, WA, (11)UCLA, Los 435.003 Effects of Age and Cognitive Ability on Maturation of Angeles, CA Resting-State Peak Alpha Frequency in Children with Autism C. E. Finn, G. T. Han, C. Carlos, J. M. Wolf, A. Naples and J. McPartland, Child 435.010 Relating ASD Traits and Sensory Overresponsivity to Early Study Center, Yale University School of Medicine, New Haven, CT Electrophysiological Indices of Auditory Processing in Children with and without ASD. E. L. Cary1, E. A. Kaplan-Kahn1, E. C. Masters1, 435.004 Greater P1 Mean Amplitude in Children with ASD Versus E. Matsuba1, C. MacKenzie1, A. Rodrigues1, B. Prieve2, D. Pacheco2, ASD+ADHD during Pattern-Reversal VEP Task A. M. Cremone- A. Madrid2 and N. Russo1, (1)Department of Psychology, Syracuse Caira1, Y. Braverman2, G. A. MacNaughton3, J. I. Nikolaeva4 and S. University, Syracuse, NY, (2)Department of Communication Sciences Faja2, (1)Assumption University, Worcester, MA, (2)Boston Children’s and Disorders, Syracuse University, Syracuse, NY Hospital, Boston, MA, (3)Boston Children’s Hospital: Labs of Cognitive Neuroscience, Boston, MA, (4)Communication Sciences and Disorders, 435.011 Respiratory Sinus Arrhythmia and Sleep Problems Among Northwestern University, Evanston, IL Children on the Autism Spectrum H. K. Schiltz1, R. M. Fenning2, S. A. Erath3 and J. K. Baker4, (1)Psychology, Marquette University, Milwaukee, 435.005 Lower Autonomic Tonus at Rest in Children with Autism WI, (2)Center for Autism, Child and Adolescent Studies, California State Spectrum Disorder M. R. Bufo1, M. Guidotti1,2,3, J. Malvy2,3, Y. Mofid1, University, Fullerton, Fullerton, CA, (3)Human Development and Family F. Bonnet-Brilhault1,3, C. Wardak1 and N. Hernandez1, (1)UMR 1253, Studies, Auburn University, Auburn, AL, (4)Center for Autism; Dept. iBrain, Université de Tours, Inserm, Tours, France, (2)CHRU Tours, of Child & Adolescent Studies, California State University, Fullerton, Tours, France, (3)EXcellence Center in Autism and neurodevelopmental Fullerton, CA disorders, Tours, France 435.012 rTMS to the Superior Temporal Sulcus Modulates EEG 435.006 Measurement of Sympathetically Driven Autonomic Arousal Theta Power in Occipital Cortex in Autism Spectrum Disorder C. J. during Eye Contact in Children with and without an Autism Diagnosis N. Stevens, A. Naples, D. A. Trevisan, M. Zhou, C. Carlos, E. Cummings, Daniels1,2, M. Moerkerke2,3, J. Prinsen1,2, B. Boets3,4, J. Steyaert2,3 and K. J. M. Wolf and J. McPartland, Child Study Center, Yale University School Alaerts1,2, (1)Rehabilitation Sciences, KU Leuven, Leuven, Belgium, (2) of Medicine, New Haven, CT Leuven Autism Research Consortium (LAuRes), Leuven, Belgium, (3) Center for Developmental Psychiatry, KU Leuven, Leuven, Belgium, (4) 435.013 Sensory Correlates of Electrophysiological Responses to Leuven Autism Research Consortium (LAuRes), KU Leuven, Leuven, Repeated Auditory Stimuli in Activity-Dependent Neuroprotective Protein Belgium Syndrome S. Barkley1, K. Keller2, B. Lerman1, H. Walker3, L. Tang4, H. Grosman3, C. F. Layton3, B. Britvan3, C. McLaughlin3, T. Levy4, J. 435.007 Measures of Tonic and Phasic Activity of the Locus Zweifach4, S. B. Guillory4, J. D. Buxbaum5, A. Kolevzon4, P. M. Siper4 Coeruleus – Norepinephrine System in Children with Autism Spectrum and J. H. Foss-Feig4, (1)Icahn School of Medicine at Mount Sinai, New Disorder Y. Kim1, G. Kadlaskar2, S. Bergmann1 and B. Keehn1, (1) York, NY, (2)Department of Psychiatry, Icahn School of Medicine, Seaver Speech, Language, and Hearing Sciences, Purdue University, West Autism Center, New York, NY, (3)Seaver Autism Center, Department of Lafayette, IN, (2)Department of Psychiatry & Behavioral Sciences, Psychiatry, Icahn School of Medicine at Mount Sinai Hospital, New York, University of California, Davis, MIND Institute, Sacramento, CA NY, (4)Seaver Autism Center for Research and Treatment, Department of Psychiatry, Icahn School of Medicine at Mount Sinai Hospital, New York, NY, (5)Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY

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435.014 Stratification of Children with Autism Using the ERP N170 436.005 Reduced Flexibility in Autism on an Unpredicted Emotional and the Eye Tracking OMI from the Autism Biomarker Consortium Flexibility Task A. Lacroix1, M. Gomot2, A. Logemann3, C. Peyrin1, for Clinical Trials (ABC-CT). I. Emerman1, D. Senturk2, C. Sugar3, R. F. Dutheil4, B. Biro5,6, R. Cserjesi3 and M. Mermillod1, (1)LPNC, Univ. A. Bernier4, K. Chawarska5, G. Dawson6, S. Faja7, S. Jeste3, N. M. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, Grenoble, France, Kleinhans8, M. Sabatos-DeVito9, A. R. Levin10, A. Naples5, F. Shic11, J. (2)UMR 1253, iBrain, Université de Tours, Inserm, Tours, France, (3) Dziura12, H. Seow12, J. McPartland5 and S. J. Webb4, (1)Biostatistics, Institute of Psychology, ELTE Eötvös Loránd University, Budapest, University of Washington, Seattle, WA, (2)UCLA, Los Angeles, CA, (3) Hungary, (4)Université Clermont Auvergne, CNRS, LaPSCo, CHU University of California, Los Angeles, Los Angeles, CA, (4)Psychiatry Clermont-Ferrand, WittyFit, Clermont-Ferrand, France, (5)Doctoral and Behavioral Sciences, University of Washington, Seattle, WA, (5) School of Psychology, Eotvos Lorand University, Budapest, Hungary, (6) Child Study Center, Yale University School of Medicine, New Haven, Institute of Psychology, Eotvos Lorand University, Budapest, Hungary CT, (6)Department of Psychiatry and Behavioral Sciences, Duke Center for Autism and Brain Development, Durham, NC, (7)Boston Children’s Hospital, Boston, MA, (8)University of Washington, Seattle, WA, (9) Poster Session Psychiatry and Behavioral Sciences, Duke Center for Autism and Brain Development, Durham, NC, (10)Neurology, Boston Children’s Hospital, Poster 437 - Pediatrics Boston, MA, (11)Center for Child Health, Behavior and Development, Seattle Children’s Research Institute, Seattle, WA, (12)Yale University, 437.001 A Mobile Game Platform for Improving Social New Haven, CT Communication in Children with Autism: A Semi-Randomized Clinical Trial Y. Penev1, K. Dunlap2, A. Husic1, C. Hou2, P. Washington1, E. 435.015 The Relationship between Resting EEG Frontal Theta Leblanc1, A. Kline1, J. Kent2, A. Ng-Thow-Hing2, M. Tsou2 and D. P. Power, Eye-Blink-Rates, and Restrictive and Repetitive Behaviors in Wall1, (1)Stanford University, Stanford, CA, (2)Pediatrics, Stanford Children with Autism Spectrum Disorder: Results from the ABC-CT University, Stanford, CA L. Pisani1, A. Naples1, K. Chawarska1, G. Dawson2, R. A. Bernier3, N. M. Kleinhans4, S. Jeste5, C. A. Nelson6, J. Dziura7, S. J. Webb3, C. 437.002 Evaluation of the Relationship of Sleep Disturbances to Sugar5, F. Shic8, H. Seow7 and J. McPartland1, (1)Child Study Center, Severity and Common Behaviors in Autism Spectrum Disorder S. Miner, Yale University School of Medicine, New Haven, CT, (2)Department of Case Western Reserve University, Cleveland, OH Psychiatry and Behavioral Sciences, Duke Center for Autism and Brain Development, Durham, NC, (3)Psychiatry and Behavioral Sciences, 437.003 Examining Health Indicators Among Children with and 1 2 University of Washington, Seattle, WA, (4)University of Washington, without Autism Spectrum Disorder K. L. Staples , E. A. Pitchford and 3 Seattle, WA, (5)University of California, Los Angeles, Los Angeles, CA, L. R. Ketcheson , (1)School of Health Promotion and Kinesiology, Texas (6)Developmental Medicine, Boston Children’s Hospital, Boston, MA, (7) Woman’s University, Denton, TX, (2)Department of Kinesiology, Iowa Yale University, New Haven, CT, (8)Center for Child Health, Behavior State, Ames, IA, (3)Department of Kinesiology, Health and Sport Studies, and Development, Seattle Children’s Research Institute, Seattle, WA Wayne State University, Detroit, MI 437.004 How Has the COVID-19 Pandemic Affected School Aged Children with Autism: A Parental Report H. Genova1, Z. Myszko2 and A. Poster Session Botticello1, (1)Kessler Foundation, East Hanover, NJ, (2)120 Eagle Rock Poster 436 - Neuropsychology Avenue, Kessler Foundation, East Hanover, NJ 437.005 Identification of Sex Differences across Comorbidities in 59K 436.002 Executive Functioning Skills in Early Childhood: Comparing Autism Spectrum Disorder Patients A. Gutierrez1, C. Sáez1,2, C. De Niz1, 1 Children with ASD, ID, and Co-Occurring ASD and ID M. E. Golson , N. Jalali1, T. N. DeSain1, R. Kumar1, J. M. Zachariasse1,3, K. P. Fox1, N. 1 2 M. McClain Verdoes and L. E. Murphy , (1)Psychology, Utah State Palmer1, I. Kohane1 and P. Avillach1, (1)DBMI - Harvard Medical School, University, Logan, UT, (2)Psychiatry, Boling Center for Disabilities, Boston, MA, (2)Instituto Universitario de Tecnologías de la Información Memphis, TN y Comunicaciones (ITACA), Universitat Politècnica de València (UPV), Valencia, Spain, (3)Department of General Paediatrics, Erasmus MC 436.003 Neuropsychological Profiles of a Spanish Preterm and Very - Sophia Children’s Hospital, University Medical Center, Rotterdam, Low Birth Weight Children Cohort M. Magan Maganto1, R. Canal-Bedia1, Netherlands Á. Bejarano1, M. V. Martín Cilleros1, A. Hernández Fabián2, A. Calvarro- 1 1 1 3 Castañeda , J. A. Yon Hernández , E. Diez Villoria , H. Roeyers and 437.006 Increase in Referrals of Children with Suspected 4 M. Posada , (1)University of Salamanca, Salamanca, Spain, (2)Hospital Autism Spectrum Disorder (ASD) from Child Health Surveillance Clínico Universitario de Salamanca, Salamanca, Spain, (3)Department of to Specialized Services, in Uruguay, Based on Changes in Health Experimental-Clinical and Health Psychology, Ghent University, Ghent, Policies N. Tailanian1, C. Carvallo2, N. Davezak2 and G. Garrido3, (1) Belgium, (4)Institute of Rare Diseases Research, Instituto de Salud MONTEVIDEO, Hospital Pereira Rossell, MONTEVIDEO, Uruguay, Carlos III, Madrid, Spain (2)ASSE, Montevideo, Uruguay, (3)Universidad de la República, Montevideo, Uruguay 436.004 Proprioceptive Channel Bias during Postural Control in Young Adults with Autism Spectrum Disorder (ASD). R. J. Knox and 437.007 Is Meeting the 24-Hour Movement Guidelines Associated M. Doumas, School of Psychology, Queen’s University Belfast, Belfast, with Weight Status and Quality of Life in Children with and without United Kingdom Autism Spectrum Disorder? L. R. Clossick1, K. L. Staples2 and D. A. Ulrich1, (1)School of Kinesiology, University of Michigan, Ann Arbor, MI, (2)School of Health Promotion and Kinesiology, Texas Woman’s University, Denton, TX

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437.008 Mental Health Screening in Pediatric Primary Care for 437.015 Understanding Behavioral Inflexibility and Anxiety in ASD Children with Autism N. A. Stadnick1,2,3, E. Lane2,4, K. Martinez5,6, D. during the COVID-19 Pandemic A. R. Dallman1, C. M. Perry2, J. P. Gizzo7, K. Coleman8, B. Lin8, B. Dub8, S. Walpole9, D. Walters10, R. Goldblum2, L. Lecavalier3, B. A. Boyd4 and C. Harrop2, (1)Occupational Ireland11, G. A. Aarons1,2,3 and L. Brookman-Frazee2,3,12, (1)University of Therapy & Occupational Science, Towson University, Towson, MD, (2) California, San Diego, La Jolla, CA, (2)Child and Adolescent Services Department of Allied Health Sciences, University of North Carolina at Research Center, San Diego, CA, (3)UC San Diego Dissemination and Chapel Hill, Chapel Hill, NC, (3)Ohio State University, Columbus, OH, (4) Implementation Science Center, La Jolla, CA, (4)Psychiatry, University Juniper Gardens Children’s Project, University of Kansas, Kansas City, of California San Diego, La Jolla, CA, (5)Child and Adolescent Services KS Research Center (CASRC), San Diego, CA, (6)Clinical Psychology, San Diego State University / University of California, San Diego Joint Doctoral Program in Clinical Psychology, San Diego, CA, (7)Kaiser Poster Session Permanente, Oakland, CA, (8)Department of Research and Evaluation, Kaiser Permanente Southern California, Pasadena, CA, (9)Psychiatry Poster 438 - Postmortem studies and Addiction Medicine, Kaiser Permanente, San Diego, CA, (10)Kaiser Permanente, San Diego, CA, (11)Department of Pediatrics, Kaiser 438.001 Prefrontal and Primary Somatosensory Cortex in Fragile Permanente, San Diego, CA, (12)Psychiatry, UC San Diego, La Jolla, X Patients Is Characterized By Decreased Number of Parvalbumin- CA Expressing Interneurons P. Juarez1, B. Dufour2 and V. Martinez- Cerdeno3, (1)Department of Pathology and Laboratory Medicine, 437.009 Prevalence of Broad Autism Phenotype in Parents of University of California Davis, Sacramento, CA, (2)Pathology and Children with Autism Spectrum Disorder Using Autism Spectrum Laboratory Medicine, University of California, Davis, Sacramento, CA, (3) Quotient (AQ)in an Indian Sample Its Impact on Adaptive Behaviours, Pathology & Laboratory Medicine, UC Davis School of Medicine; Institute Behavioural Issues and Severity Children with ASD H. Dayal1 and M. for Pediatric Regenerative Medicine and Shriners Hospitals for Children Juneja2, (1)Pediatrics, Maulana Azad Medical College, New Delhi, India, of Northern California, Sacramento, CA New Delhi, India, (2)Maulana Azad Medical College, New Delhi, India

437.010 The Association between Parent Concern about Child Weight and Parental Use of Restrictive Feeding Practices in Typically Poster Session Developing Children and Children with Autism Spectrum Disorder. Poster 439 - Rare genetic disorders K. M. Rancano1, C. Curtin2, L. G. Bandini3 and A. Must4, (1)Nutrition Communications, Interventions, and Behavior Change, Friedman 439.001 18p Deletion Syndrome with Co-Occurring Autism Spectrum School of Nutrition Science and Policy, Tufts University, Boston, MA, (2) Disorder and Average Verbal Comprehension Abilities: A Case Study University of Massachusetts Medical School, Waltham, MA, (3)Eunice J. Hangauer, Psychology, Johns Hopkins All Children’s Hospital, St Kennedy Shriver Center, University of Massachusetts Medical School, Petersburg, FL Worcester, MA, (4)Tufts University School of Medicine, Boston, MA 439.002 Absence of 40-Hz Auditory Steady State Response (ASSR) 437.011 The Complex Relationship between Greenspace and in 15-Years Old Girl with Microduplication in 22q13.33 A. Neklyudova1, Wellbeing in Children with Autism, Children with Special Healthcare V. Voinova2 and O. V. Sysoeva1, (1)Institute of Higher Nervous Activity 1 2 Needs (CSHCN), and Typical Children B. Barger , L. Larson , J. and Neurophysiology, Moscow, Russian Federation, (2)Research Clinical 3 4 5 Torquati , E. Moody and S. Rosenberg , (1)Georgia State University, Institute of Pediatrics, Moscow, Russian Federation Atlanta, GA, (2)[email protected], NC State, Raleigh, NC, (3)U of Nebraska, Lincoln, NE, (4)Wyoming Institute for Disabilities, University 439.003 Autism Symptom Severity and Self-Injurious Behavior of Wyoming, Laramie, WY, (5)University of Colorado Anschutz Medical Among Individuals with ASD-Associated Disruptive Mutations E. C. Campus, Aurora, CO Kurtz-Nelson1, A. S. Wallace1, E. E. Eichler2,3, R. A. Bernier1 and R. K. Earl1, (1)Psychiatry and Behavioral Sciences, University of Washington, 437.012 The Effects of Distraction on the Self-Regulation of Seattle, WA, (2)Department of Genome Sciences, University of 1 Preschoolers with Autism Spectrum Disorder B. S. Kennedy and S. Washington, Seattle, WA, (3)Howard Hughes Medical Institute, Seattle, 2 Faja , (1)Faja Lab, Labs of Cognitive Neuroscience, Boston Children’s WA Hospital, Boston, ME, (2)Boston Children’s Hospital, Boston, MA 439.004 Autonomic Nervous System Function Early in Development 437.013 The Impact of COVID on Families’ Wellbeing with Children Predicts Later ASD and Anxiety Symptoms in Both Fragile X Syndrome 1 1 2 1 3 with ASD R. Nunez Pepen , H. Park , P. Fuchu , G. Fleurio , A. Chu and Typical Development A. L. Hogan1, E. Hunt1, K. D. Smith1, C. 3 and E. Feinberg , (1)Boston Medical Center, Boston, MA, (2)Boston J. Black1, K. Bangert2, J. Klusek3 and J. Roberts1, (1)Department of University School of Medicine, Boston, MA, (3)Boston University School Psychology, University of South Carolina, Columbia, SC, (2)University of Public Health, Boston, MA of South Carolina, Columbia, SC, (3)Communication Sciences and 437.014 The Impact of COVID-19 on the Autism Service Delivery Disorders, University of South Carolina, Columbia, SC 1 2 3 System in Alberta D. B. Nicholas , R. Zulla , O. Conlon and L. 439.005 Characteristics of Individuals with Parent-Reported 3 Zwaigenbaum , (1)University of Calgary, Edmonton, AB, Canada, (2) Diagnosis of Autism Spectrum Disorder within Pitt Hopkins Syndrome H. School of Public Health, University of Alberta, Edmonton, AB, Canada, K. Root1, C. H. Morgan2, K. C. Guest3 and S. E. O’Kelley3, (1)University (3)University of Alberta, Edmonton, AB, Canada of Alabama at Birmingham, Birmingham, AL, (2)Psychology, The University of Alabama at Birmingham, Birmingham, AL, (3)The University of Alabama at Birmingham, Birmingham, AL

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439.006 Characterizing the Family Experience of Children with 439.014 Joint Attention in Children with Adnp Syndrome H. Walker1, CHD8 Using an Innovative Online Platform K. P. Ahlers, E. C. Kurtz- S. B. Guillory2, B. Lerman3, S. Barkley3, K. Keller4, A. Rouhandeh5, T. Nelson and R. K. Earl, Psychiatry and Behavioral Sciences, University of Levy2, J. D. Buxbaum6, A. Kolevzon2, P. M. Siper2 and J. Foss-Feig7, Washington, Seattle, WA (1)Seaver Autism Center, Department of Psychiatry, Icahn School of Medicine at Mount Sinai Hospital, New York, NY, (2)Seaver Autism 439.007 Child and Maternal Predictors of Dysfunctional Parent-Child Center for Research and Treatment, Department of Psychiatry, Icahn Interactions in Families of Boys with Fragile X Syndrome E. Hunt, A. L. School of Medicine at Mount Sinai Hospital, New York, NY, (3)Icahn Hogan, E. Tillman and J. Roberts, Department of Psychology, University School of Medicine at Mount Sinai, New York, NY, (4)Department of of South Carolina, Columbia, SC Psychiatry, Icahn School of Medicine, Seaver Autism Center, New York, NY, (5)Clinical Psychology, Yeshiva University, New York, NY, (6) 439.008 Developing Angelman Syndrome-Specific Clinician-Reported Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New and Caregiver-Reported Measures to Support Holistic, Patient-Centered York, NY, (7)Psychiatry, Icahn School of Medicine at Mount Sinai, New Drug Development S. Connor1, M. Chladek2, T. Willgoss1, L. Newton3, T. York, NY Symonds3, J. Tjeertes4, B. Vincenzi4 and F. McDougall5, (1)F. Hoffmann- La Roche Ltd., Welwyn Garden City, United Kingdom, (2)Clinical 439.015 Reduced Sensitivity to Eye Contact in Williams Syndrome J. Outcomes Solutions, Chicago, IL, (3)Clinical Outcomes Solutions, L. Kleberg1,2, D. M. Riby3, A. Nordgren4 and C. Willfors5, (1)Department Folkestone, United Kingdom, (4)F. Hoffmann-La Roche Ltd, Basel, of Clinical Neuroscience, Karolinska institutet, Stockholm, Sweden, (2) Switzerland, (5)Genentech, South San Francisco, CA Department of Molecular Medicine and Surgery, Karolinska institutet, Stockholm, Sweden, (3)Department of Psychology, Durham University, 439.009 Developmental, Social and Emotional Characteristics of Durham, United Kingdom, (4)Karolinska institutet, Stockholm, Sweden, Girls and Young Women with DDX3X-Linked Intellectual Disability (5)Dept of Molecular Medicine and Surgery, Karolinska institutet, E. Ng-Cordell1, S. O’Brien2, D. Astle2, G. Scerif3 and K. Baker2, (1) Stockholm, SWEDEN Psychology, University of British Columbia Vancouver, Vancouver, BC, Canada, (2)MRC Cognition & Brain Sciences Unit, University of 439.016 Symptoms of Autism Spectrum Disorder and Behavioral Cambridge, Cambridge, United Kingdom, (3)Experimental Psychology, Phenotype in Children with CLN2 Disease J. F. Scherr1, C. Albright2, University of Oxford, Oxford, United Kingdom P. Vandana3, E. Butter3 and E. de los Reyes3, (1)Behavioral Health, Nationwide Children’s Hospital, Columbus, OH, (2)Nationwide Children’s 439.010 EEG Resting State Spectral Differences between SCN2A, Hospital, Westerville, OH, (3)Nationwide Children’s Hospital, Columbus, Idiopathic ASD, and Typically Developing Controls L. T. Hall1, C. L. OH Sargent1, W. R. Ganz1, R. K. Earl1, E. E. Eichler2, R. A. Bernier1, S. 1 3 J. Webb and C. M. Hudac , (1)Psychiatry and Behavioral Sciences, 439.017 The Impact of Stress, Alcohol Consumption, Social Media University of Washington, Seattle, WA, (2)Department of Genome Use, and Exercise on Sleep in Caregivers of Children with NGS during Sciences, University of Washington, Seattle, WA, (3)Psychiatry and COVID-19 T. F. Protho1, S. P. Lane1, M. J. George2, E. A. Richards3 Behavioral Sciences, University of Washington, Seattle, AL and B. Kelleher1, (1)Psychological Sciences, Purdue University, West Lafayette, IN, (2)RTI International, Cary, NC, (3)School of Nursing, 439.011 Features of Autism and Social Disability in 3q29 Deletion Purdue University, West Lafayette, IN Syndrome J. Pincus1, E. Sefik2, M. M. Murphy3, C. Klaiman4, C. A. 4 5 4 3 Saulnier , S. P. White , S. Shultz and J. G. Mulle , (1)Department of 439.018 Visual Engagement and Attention Differences in Children Pediatrics, Emory University School of Medicine, Marcus Autism Center, with FOXP1 Syndrome Parallel Those in Autism Spectrum Disorder B. Atlanta, GA, (2)Graduate Division of Biological and Biomedical Sciences, Lerman1, T. Levy2, C. McLaughlin3, S. B. Guillory2, H. Grosman3, K. Emory University, Atlanta, GA, (3)Department of Human Genetics, Keller4, H. Walker3, L. Tang2, P. M. Siper2, A. Kolevzon2, J. D. Buxbaum5, Emory University School of Medicine, Atlanta, GA, (4)Marcus Autism M. P. Trelles2 and J. Foss-Feig6, (1)Icahn School of Medicine at Mount Center, Children’s Healthcare of Atlanta and Emory University School of Sinai, New York, NY, (2)Seaver Autism Center for Research and Medicine, Atlanta, GA, (5)Department of Pediatrics, Emory University, Treatment, Department of Psychiatry, Icahn School of Medicine at Mount Atlanta, GA Sinai Hospital, New York, NY, (3)Seaver Autism Center, Department of Psychiatry, Icahn School of Medicine at Mount Sinai Hospital, New York, 439.012 Gene Functional Networks and Autism Spectrum NY, (4)Department of Psychiatry, Icahn School of Medicine, Seaver Characteristics in Young People with Intellectual Disability: A Autism Center, New York, NY, (5)Department of Psychiatry, Icahn Dimensional Phenotyping Study K. Baker1, E. Ng-Cordell1,2, D. Brkic1, School of Medicine at Mount Sinai, New York, NY, (6)Psychiatry, Icahn S. O’Brien1, D. Astle1 and G. Scerif3, (1)MRC Cognition & Brain School of Medicine at Mount Sinai, New York, NY Sciences Unit, University of Cambridge, Cambridge, United Kingdom, (2)Psychology, University of British Columbia Vancouver, Vancouver, BC, Canada, (3)Experimental Psychology, University of Oxford, Oxford, United Kingdom

439.013 How Do Parenting Stress and Child Autism Symptoms Relate to Caregiver Self-Efficacy during the COVID-19 Pandemic? R. Felicicchia1, K. C. Okoniewski2, A. Wheeler2 and B. Kelleher1, (1) Psychological Sciences, Purdue University, West Lafayette, IN, (2)Center for Newborn Screening, Ethics, and Disability Studies, RTI International, Research Triangle Park, NC

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Poster Session 440.007 The Physiological Mechanisms of Habituation and Generalization to Mildly Aversive Sensory Stimulation in Youth Poster 440 - Sensory physiology with Autism and Anxiety Disorders J. Jung1, T. D. Zbozinek2, K. K. Cummings3, F. H. Wilhelm4, M. Dapretto1, M. G. Craske5, S. Y. 440.001 Altered Visual Evoked Potentials to Illusory Contour Bookheimer1 and S. A. Green1, (1)Dept of Psychiatry and Biobehavioral 1 Integration Among Children on the Autism Spectrum E. J. Knight , E. Sciences, University of California, Los Angeles, Los Angeles, CA, (2) 2 3 4 3 4 J. Myers , Z. Cao , L. A. Oakes , E. P. Nicholas , E. G. Freedman and Div of the Humanities and Social Sciences, California Institute of 4 J. J. Foxe , (1)Developmental and Behavioral Pediatrics, University Technology, Pasadena, CA, (3)Semel Institute of Neuroscience and of Rochester Medical Center, Rochester, NY, (2)601 Elmwood Human Behavior, University of California, Los Angeles, Los Angeles, CA, Ave, University of Rochester Medical Center, Rochester, NY, (3) (4)Dept of Psychology, University of Salzburg, Salzburg, Austria, (5)Dept Neuroscience, University of Rochester Medical Center, Rochester, NY, of Psychology, University of California, Los Angeles, Los Angeles, CA (4)The Ernest J. Del Monte Institute for Neuroscience, University of Rochester Medical Center, Rochester, NY 440.008 “Neural Noise” in and Habituation of Auditory Responses in Young Autistic and Typically-Developing Children P. Dwyer1, Z. J. 440.002 Attention Mediates Brain-Behavior Relationship of Sensory Williams2, S. Vukusic3, C. D. Saron3 and S. M. Rivera1, (1)Department 1 2 Processing in Autism Spectrum Disorders J. E. Crasta , W. J. Gavin of Psychology, University of California, Davis, Davis, CA, (2)Medical 3 and P. L. Davies , (1)Physical Medicine and Rehabilitation, Kennedy Scientist Training Program, Vanderbilt University School of Medicine, Krieger Institute, Baltimore, MD, (2)Human Development & Family Nashville, TN, (3)Center for Mind and Brain, UC Davis, Davis, CA Studies, Colorado State University, Fort Collins, CO, (3)Colorado State University, Fort Collins, CO

440.003 Atypical Tactile Psychophysics in a Clinical Poster Session Neurodevelopmental Disorder Cohort H. Powell1, M. A. Rowe2, J. L. He1, Poster 441 - Sensory, Motor, and Repetitive Behaviors 3,4 5 6 1 R. Schaaf , P. Mukherjee , E. J. Marco and N. A. Puts , (1)Institute of and Interests Psychiatry, Psychology and Neuroscience, London, United Kingdom, (2) Radiology, University of California, San Francisco, San Francisco, CA, (3)Occupational Therapy, Thomas Jefferson University, Philadelphia, 441.001 A Comparison of Restricted Interests in Toddlers with 1 PA, (4)Jefferson Autism Center of Excellence, Thomas Jefferson Autism, Developmental Delay, and No Delay M. Frisch , K. L. 1 1 1 2 1 University, Philadelphia, PA, (5)Department of Radiology and Biomedical Coulter , R. P. Thomas , M. Barton , D. L. Robins and D. A. Fein , (1) Imaging, University of California, San Francisco, San Francisco, CA, (6) Psychological Sciences, University of Connecticut, Storrs, CT, (2)A.J. Neurodevelopmental Medicine, Cortica Healthcare, San Rafael, CA Drexel Autism Institute, Drexel University, Philadelphia, PA

440.004 Closing the Species Gap: How to Study Sensory Processing 441.002 A Cultural Comparison of the Latent Structure of Autistic Differences Relevant for Autism Spectrum Disorder in Both Rodents Traits and Sensory Sensitivities in Typically Developing Populations E. and Humans K. Scott1, D. Moehrle2, S. E. Schulz3, J. Oram Cardy3, J. Millington and D. R. Simmons, School of Psychology, University of B. Allman1, R. A. Stevenson4 and S. Schmid5, (1)Anatomy and Cell Glasgow, Glasgow, United Kingdom Biology, Western University, London, ON, Canada, (2)University of 441.003 A Network Analysis of Repetitive Thinking in Autistic Adults Western Ontario, London, ON, Canada, (3)Western University, London, K. O. Gotham1 and Z. J. Williams2, (1)Department of Psychology, ON, Canada, (4)Brain and Mind Institute, University of Western Ontario, Rowan University, Glassboro, NJ, (2)Medical Scientist Training Program, London, ON, Canada, (5)Anatomy and Cell Biology, University of Vanderbilt University School of Medicine, Nashville, TN Western Ontario, London, ON, Canada 441.004 A Prospective Perception-Action Strategy in Children 440.005 EEG Indices of Sensory Gating Are Associated with Atypical with Autism during Smart-Tablet Gameplay S. C. Lu1, D. Lee2, A. Perceptual Modulation and Interoception D. A. Trevisan, T. C. Parker, A. Anzulewicz3, K. Sobota4, P. Rowe5, C. Tachtatzis6, I. Andonovic6 and Naples, E. Cummings, S. Kala, A. Bagdasarov and J. McPartland, Child J. Delafield-Butt1, (1)Laboratory for Innovation in Autism, University Study Center, Yale University School of Medicine, New Haven, CT of Strathclyde, Glasgow, United Kingdom, (2)University of Edinburgh, 440.006 Interoceptive Awareness and Its Relationship to Social Edinburgh, United Kingdom, (3)Faculty of Psychology, University of and Sensory Processing in Youth with Autism Spectrum Disorder K. K. Warsaw, Warsaw, Poland, (4)Harimata Sp. z.o.o., Kraków, Poland, Cummings1, G. Patterson2, J. Jung3, N. J. Okada3, S. Y. Bookheimer3, (5)Department of Biomedical Engineering, University of Strathclyde, M. Dapretto3 and S. A. Green3, (1)Semel Institute of Neuroscience and Glasgow, United Kingdom, (6)Department of Electronic and Electrical Human Behavior, University of California, Los Angeles, Los Angeles, Engineering, University of Strathclyde, Glasgow, United Kingdom CA, (2)University of Denver, Denver, CO, (3)Dept of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA

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441.005 Adaptive Behaviors Predicted By Sensory Profiles 441.012 Development and Validation of the Parent-Rated Sensory in Toddlers at-Risk for Autism E. Worthley1, R. Grzadzinski2, K. Reactivity Scale for Children with Autism Spectrum Disorder M. Botteron3, S. R. Dager4, A. M. Estes5, H. C. Hazlett6, R. T. Schultz7, Eyuboglu1, D. Eyuboglu2, N. E. Unal3, F. Yaylaci4, E. Karadag5 and D. L. Zwaigenbaum8, J. Piven9, J. J. Wolff1 and .. The IBIS Network10, Arslantas6, (1)Child and Adolesent Psychiatry, Eskisehir Osmangazi (1)University of Minnesota, Minneapolis, MN, (2)University of North University Medical School, Eskisehir, Turkey, (2)Child and adolescent Carolina Chapel Hill, Chapel Hill, NC, (3)Washington University School of psychiatry, Eskisehir Osmangazi University Medical School, Eskisehir, Medicine, St. Louis, MO, (4)Radiology, University of Washington, Seattle, Turkey, (3)Child and adolescent psychiatry, Eskisehir Osmangaz WA, (5)Speech and Hearing Sciences, University of Washington, Seattle, University Medical School, Eskisehir, Turkey, (4)Bursa Dortcelik Children WA, (6)*co-senior author, University of North Carolina, Chapel Hill, NC, Hospital, Bursa, Turkey, (5)Akdeniz University Faculty of Education, (7)Center for Autism Research, Children’s Hospital of Philadelphia, Antalya, Turkey, (6)Public Health, Eskisehir Osmangazi University Philadelphia, PA, (8)University of Alberta, Edmonton, AB, Canada, Medical School, Eskisehir, Turkey (9)*Co-senior author, University of North Carolina, Chapel Hill, NC, (10) University of North Carolina, Chapel Hill, NC 441.013 Do Males and Females with Autism Spectrum Disorder Show Distinct Age-Related Patterns of Restricted Repetitive Behaviors 441.006 Altered Salience Processing during Visual Exploration in from Early Childhood to Adulthood? Trends across 16,000 Individuals Autism Spectrum Disorder N. Bast1, L. Poustka2, T. Banaschewski3 and S. S. Kuo1,2, C. van der Merwe2, C. E. Carey2, S. Bishop3 and E. C. M. Freitag4, (1)Department of Child and Adolescent Psychiatry and B. Robinson1,2,4, (1)Stanley Center for Psychiatric Research, Broad Psychotherapy, University Hospital Frankfurt, Frankfurt, Germany, (2) Institute of MIT and Harvard, Cambridge, MA, (2)Analytic and Child and Adolescent Psychiatry and Psychotherapy, University Medical Translational Genetics Unit, Massachusetts General Hospital, Boston, Center Goettingen, Goettingen, Germany, (3)Department of Child and MA, (3)University of California San Francisco, San Francisco, CA, (4) Adolescent Psychiatry, Central Institute of Mental Health, University of Department of Epidemiology, Harvard School of Public Health, Boston, Heidelberg, Mannheim, Germany, (4)Autism Research and Intervention MA Center of Excellence Frankfurt, Department of Child and Adolescent Psychiatry, Psychosomatics and Psychotherapy, University Hospital 441.014 Do You Sense What I Sense? a Comparison of Caregiver- Frankfurt, Goethe University, Frankfurt, Germany and Self-Reports of Sensory Sensitivities in Children and How They Relate to Autistic Traits D. R. Simmons and E. J. Millington, School of 441.007 An Analysis of Gender Differences in Autism Spectrum Psychology, University of Glasgow, Glasgow, United Kingdom Disorder Diagnostic Symptom Presentation in a Tertiary Care Clinic J. J. Cottle1, Z. E. Arnold2, H. K. Root3, K. C. Guest4 and S. E. O’Kelley4, (1) 441.015 Effects of Creative Movement Interventions on Fine-Motor, 1 Psychology, The University of Alabama at Birmingham, Birmingham, AL, Gross-Motor, and Functional Skills of Children with ASD C. Cleffi , S. 2 3 4 (2)Department of Psychiatry, Rush University Medical Center, Chicago, Srinivasan , W. C. Su and A. Bhat , (1)Physical therapy, University IL, (3)University of Alabama at Birmingham, Birmingham, AL, (4)The of Delaware, Newark, DE, (2)Department of Kinesiology, University of University of Alabama at Birmingham, Birmingham, AL Connecticut, Storrs, CT, (3)Physical Therapy, University of Delaware, Newark, DE, (4)Department of Physical Therapy, University of Delaware, 441.008 Associations between ASD-Related Traits, Restricted and Newark, DE Repetitive Behaviors, and Sensory Reactivity in Children with and without ASD S. Soker-Elimaliah1,2 and J. B. Wagner1,2, (1)The Graduate 441.016 Evaluation of Fine Motor Skills in Preschool-Aged Boys and 1 2 1 1 Center, City University of New York, New York, NY, (2)College of Staten Girls with ASD A. Acosta , B. G. Travers , D. G. Amaral , M. Solomon , 1 1 Island, City University of New York, Staten Island, NY S. J. Rogers and C. W. Nordahl , (1)Department of Psychiatry and Behavioral Sciences, The Medical Investigation of Neurodevelopmental 441.010 Comparing Age-Related Sensory Processing Differences Disorders (MIND) Institute, UC Davis School of Medicine, University of in Children with Autism Spectrum Disorder, Down Syndrome, Other California Davis, Sacramento, CA, (2)University of Wisconsin - Madison, Developmental Disabilities, and Typically Developing E. Isralowitz, Madison, WI G. T. Baranek, J. Sideris, L. I. Duker (Stein) and S. A. Cermak, Chan Division of Occupational Science and Occupational Therapy, University 441.017 Examining the Factor Structures of the Childhood Routines of Southern California, Los Angeles, CA Inventory-Revised and the Adult Routines Inventory in Autistic Children, Adolescents and Adults D. V. Crawley1, J. Tillmann1, J. K. Buitelaar2, 441.011 Component Analysis of a Novel Measure of Rigidity in T. Charman3, E. J. Jones4, E. Loth5, D. Murphy5, J. F. Hipp1 and D. Individuals with ASD C. J. Ferretti1, V. Zemon2, B. P. Taylor1, E. Eule3, W. Evans6, (1)Neuroscience and Rare Diseases (NRD), Pharma F. Bolognani4 and E. Hollander1, (1)Albert Einstein College of Medicine, Research & Early Development, Roche Innovation Center Basel, F. Psychiatric Research Institute at Montefiore-Einstein, Bronx, NY, (2) Hoffmann-La Roche AG, Basel, Switzerland, (2)Department of Cognitive Ferkauf Graduate School of Psychology, Yeshiva University, Bronx, NY, Neuroscience, Donders Institute for Brain, Cognition and Behaviour, (3)Neuroscience and Rare Diseases (NRD), Roche Pharma Research Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, and Early Development, Roche Innovation Center, Basel, Switzerland, (3)Department of Psychology, Institute of Psychiatry, Psychology and (4)VectivBio Holding AG, Basel, Switzerland, Basel, Switzerland Neuroscience, King’s College London, London, United Kingdom, (4) Centre for Brain and Cognitive Development, Birkbeck, University of London, London, United Kingdom, (5)Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom, (6) Department of Psychology, Bucknell University, Lewisburg, PA

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441.018 Examining the Hierarchical Structure of Parent-Reported 441.025 Investigating Perceptual Sensitivities and Sensory Sensory Features in Autism Using Bifactor Models Z. J. Williams1, J. I. Atypicalities during Development in Children with an Elevated Familial Feldman2 and T. G. Woynaroski2, (1)Medical Scientist Training Program, Likelihood for Autism. R. Arthur1, T. Bazelmans2, M. Johnson3, E. Vanderbilt University School of Medicine, Nashville, TN, (2)Department J. Jones4, T. Charman5 and &. The BASIS Team6, (1)Kings College of Hearing and Speech Sciences, Vanderbilt University Medical Center, London, London, United Kingdom, (2)King’s College London, Institute of Nashville, TN Psychiatry, Psychology and Neuroscience, London, United Kingdom, (3) Department of Psychology, University of Cambridge, Cambridge, United 441.019 Examining the Relationship between Stereotypy and Kingdom, (4)Centre for Brain and Cognitive Development, Birkbeck, Attentional Problems and Diagnoses in Individuals with ASD J. E. University of London, London, United Kingdom, (5)Department of Nauman and B. R. Ingersoll, Psychology, Michigan State University, Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s East Lansing, MI College London, London, United Kingdom, (6)Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United 441.020 Exploring Sensory Phenotypes in Autism Spectrum Kingdom Disorder N. E. Scheerer1, K. Curcin2, B. Stojanoski2, E. Anagnostou3, 4 5 6 7 8 R. Nicolson , E. Kelley , S. Georgiades , X. Liu and R. A. Stevenson , 441.026 Lower Verbal IQ Is Associated with Higher Presence of (1)Psychology, Western University, London, ON, Canada, (2)Western Repetitive Use of Objects with Autism Spectrum Disorder S. Mussarrat1, University, London, ON, Canada, (3)Autism Research Center, Bloorview B. Rozumny2 and E. Hanson3, (1)Boston Children’s Hospital, Boston, Research Institute, Holland Bloorview Kids Rehabilitation Hospital, MA, (2)Developmental Medicine, Boston Children’s Hospital, Boston, Toronto, ON, Canada, (4)University of Western Ontario, London, ON, MA, (3)Boston Children’s Hospital/Harvard Medical School, Boston, MA Canada, (5)Queen’s University, Kingston, ON, Canada, (6)McMaster Autism Research Team, McMaster University, Hamilton, ON, Canada, 441.027 Manual Motor Behavior in Individuals with Autism Spectrum (7)Genomics, Queen’s Genomics Lab at Ongwanada, Kingston, ON, Disorder and Their Parents E. K. Bojanek1, S. E. Kelly2, L. M. Schmitt3, Canada, (8)Brain and Mind Institute, University of Western Ontario, S. P. White4, J. A. Sweeney5 and M. W. Mosconi6, (1)Clinical Child London, ON, Canada Psychology Program, Schiefelbusch Institute for Life Span Studies, Kansas Center for Autism Research and Training (KCART), University 441.021 Functional Brain Mechanisms of Rapid Motor Control in of Kansas, Lawrence, KS, (2)Kansas Center for Autism Research and 1 1 Individuals with Autism Spectrum Disorder K. E. Unruh , J. Bartolotti , Training (KCART), University of Kansas, Lawrence, KS, (3)Cincinnati 1 1 2 W. S. McKinney , M. B. Trost and M. W. Mosconi , (1)Kansas Center Children’s Hospital Medical Center, Cincinnati, OH, (4)Department of for Autism Research and Training (K-CART), University of Kansas, Pediatrics, Emory University, Atlanta, GA, (5)Psychiatry and Behavioral Lawrence, KS, (2)Clinical Child Psychology Program, Schiefelbusch Neuroscience, University of Cincinnati College of Medicine, Cincinnati, Institute for Life Span Studies, University of Kansas, Lawrence, KS OH, (6)Clinical Child Psychology Program, Schiefelbusch Institute for Life Span Studies, University of Kansas, Lawrence, KS 441.022 Genetic Clustering of Repetitive Symptoms, Oppositional Defiant Disorder and Language Disorder and Delay in People with 441.028 Measuring Multisensory Integration and Autistic Traits J. W. Autism: A Multivariate Genetic Variance Analysis of Genetic Relationship Hagon1, S. E. Schulz2 and R. A. Stevenson3, (1)University of Western 1 2 Matrices in the SPARK Sample L. de Hoyos , M. Barendse , M. M. van Ontario, London, ON, Canada, (2)Western University, London, ON, 1 1 1,3 4,5 1,6,7 Donkelaar , E. Verhoef , S. E. Fisher , D. Rai and B. St Pourcain , Canada, (3)Brain and Mind Institute, University of Western Ontario, (1)Language and Genetics, Max Planck Institute for Psycholinguistics, London, ON, Canada Nijmegen, Netherlands, (2)Max Planck Institute for Psycholinguistics, Nijmegen, Netherlands, (3)Donders Institute for Brain, Cognition and 441.029 Microstructural Brain Correlates of Parent-Reported Sensory Behaviour, Nijmegen, Netherlands, (4)Population Health Sciences, Symptom Severity in Children with ASD and Typical Development. B. Bristol Medical School, Centre for Academic Mental Health, Bristol, G. Travers1, O. J. Surgent1, A. Riaz1, K. K. Ausderau1, D. C. Dean2 and United Kingdom, (5)BASS Autism Services for Adults, Avon & Wiltshire A. L. Alexander3, (1)University of Wisconsin - Madison, Madison, WI, Partnership NHS Trust, Bristol, United Kingdom, (6)Population Health (2)Pediatrics & Medical Physics, University of Wisconsin - Madison, Sciences, Bristol Medical School, MRC Integrative Epidemiology Unit, Madison, WI, (3)Medical Physics & Psychiatry, University of Wisconsin - Bristol, United Kingdom, (7)Donders Institute for Brain, Cognition and Madison, Madison, WI Behaviour, Radboud University, Nijmegen, Netherlands 441.030 Misophonia, Hyperacusis, and the Relationship with 441.023 Girls or Boys, Does the Repetitive Behaviors in Young Quality of Life in Autistic and Non-Autistic Adults T. Q. Boucher1, N. E. Autistic Children Differ during Object Exploration? K. Sotelo1,2, V. Scheerer2, G. Iarocci1, B. Bahmei3, S. Arzanpour3 and E. Birmingham4, Courchesne2, L. Mottron, M.D.2 and C. Jacques1,2, (1)University of (1)Psychology, Simon Fraser University, Burnaby, BC, Canada, (2) Quebec in Outaouais, Gatineau, QC, Canada, (2)Autism Research Psychology, Western University, London, ON, Canada, (3)Mechatronic Group, CIUSSS du Nord-de-l ’Île-de-Montréal, Montréal, QC, Canada Systems Engineering, Simon Fraser University, Surrey, BC, Canada, (4) Faculty of Education, Simon Fraser University, Burnaby, BC, Canada 441.024 Interoceptive Awareness Is Associated with Autism Trait Severity M. E. Johnson, D. A. Trevisan, T. C. Parker, E. Cummings, J. M. Wolf, C. C. Cukar-Capizzi, C. E. Finn, L. Pisani, C. J. Stevens, A. Naples and J. McPartland, Child Study Center, Yale University School of Medicine, New Haven, CT

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441.031 Motor, Praxis and Social Impairments in Children 441.038 Sensorimotor and Cortical-Cerebellar Lateralization in and Adolescents with Autism Spectrum Disorder, Developmental Autism Spectrum Disorder W. S. McKinney1,2, K. E. Unruh1,2, M. H. Coordination Disorder, and Typical Development E. Kilroy1, P. A. Campbell1,2 and M. W. Mosconi1,2, (1)Kansas Center for Autism Research Ring1, A. A. Nalbach2, A. A. Hossain1, C. Butera3, L. A. Harrison4, and Training (K-CART), University of Kansas, Lawrence, KS, (2)Clinical A. Jayashankar5, L. aziz-Zadeh3 and S. A. Cermak6, (1)Division of Child Psychology Program, Schiefelbusch Institute for Life Span Studies, Occupational Sciene and Occupational Therapy, USC Brain and University of Kansas, Lawrence, KS Creativity Institute, University of Southern California, Los Angeles, CA, (2)Occupational Science and Occupational Therapy, Brain and Creativity 441.039 Sensorimotor Gating in Autistic Children and Adolescents 1 1 Institute, University of Southern California, Los Angeles, CA, (3)USC and Their Typically-Developing Peers K. R. Henderson , S. E. Schulz , 2 1 3 4 Mrs. T.H. Chan Division of Occupational Science and Occupational R. Phillips , A. Seif , S. Schmid and R. A. Stevenson , (1)Western Therapy, University of Southern California, Los Angeles, CA, (4) University, London, ON, Canada, (2)University of Western Ontario, California Institute of Technology, Pasadena, CA, (5)Brain and Creativity London, ON, Canada, (3)Anatomy and Cell Biology, University of Institute, Dornsife College of Letters, Arts and Sciences, University of Western Ontario, London, ON, Canada, (4)Brain and Mind Institute, Southern California, Los Angeles, CA, (6)Division of Occpational Therapy University of Western Ontario, London, ON, Canada and Occupational Science, University of Southern California, Los 441.040 Sensory Mechanisms of Atypical Motor Variability and Angeles, CA Regularity in Autism Spectrum Disorder R. L. Shafer1,2, Z. Wang3, 1,4 5 441.032 New Device for Tip-Toe Behavior Treatment in ASD: A Proof J. Bartolotti and M. W. Mosconi , (1)Life Span Institute, University of Concept Study Based on Sensory Impairment Pattern G. Valagussa1, of Kansas, Lawrence, KS, (2)Kansas Center for Autism Research V. Balatti2, M. Azzaretto2, A. Grassi2, R. Pirovano2 and E. Grossi2, (1) and Training, University of Kansas, Lawrence, KS, (3)Department Program in Physical Therapy, University of Milano-Bicocca, School of of Occupational Therapy, University of Florida, Gainesville, FL, (4) Medicine and Surgery, Monza, Italy, (2)Autism Research Unit, Villa Kansas Center for Autism Research and Training (K-CART), University Santa Maria Foundation, Tavernerio, Italy of Kansas, Lawrence, KS, (5)Clinical Child Psychology Program, Schiefelbusch Institute for Life Span Studies, University of Kansas, 441.033 Parent Perspectives: Sensory Sensitivities Impact the Lawrence, KS Transition to Adulthood in Young Adults with ASD R. Hantman1 and H. Tager-Flusberg2, (1)Boston University, Boston, MA, (2)Department of 441.041 Sensory Phenotypes in Autism and Their Relationship 1 2 3 3 Psychological and Brain Sciences, Boston University, Boston, MA with Anxiety Z. Ding , N. E. Scheerer , C. Yang , B. Stojanoski , E. Anagnostou4, R. Nicolson5, E. Kelley6, S. Georgiades7, X. Liu8 and 441.034 Perceptual Processing Links Autism and Synesthesia: A R. A. Stevenson9, (1)Western Univeristy, London, ON, Canada, (2) Twin Study T. M. van Leeuwen1, L. Wilsson2, H. Nobel Norrman2, M. Psychology, Western University, London, ON, Canada, (3)Western Dingemanse3, S. Bolte4 and J. Neufeld5, (1)Donders Institute for Brain, University, London, ON, Canada, (4)Autism Research Center, Bloorview Cognition and Behaviour, Radboud University, Nijmegen, Netherlands, Research Institute, Holland Bloorview Kids Rehabilitation Hospital, (2)Center of Neurodevelopmental Disorders at Karolinska Institutet Toronto, ON, Canada, (5)University of Western Ontario, London, ON, (KIND), Stockholm, Sweden, (3)Centre for Language Studies, Radboud Canada, (6)Queen’s University, Kingston, ON, Canada, (7)McMaster University, Nijmegen, Netherlands, (4)Center of Neurodevelopmental Autism Research Team, McMaster University, Hamilton, ON, Canada, Disorders (KIND), Centre for Psychiatry Research; Department of (8)Genomics, Queen’s Genomics Lab at Ongwanada, Kingston, ON, Women’s and Children’s Health, Karolinska Institutet, & Stockholm Canada, (9)Brain and Mind Institute, University of Western Ontario, Health Care Services, Region Stockholm, Stockholm, Sweden, (5) London, ON, Canada Center of Neurodevelopmental Disorders (KIND), Centre for Psychiatry Research; Department of Women’s and Children’s Health, Karolinska 441.042 Sensory Processing, Prediction, and Anxiety in Autistic 1 Institutet, & Stockholm Health Care Services, Region Stockholm, Children: Behavioral and Neurophysiologic Correlates G. J. Cardon and 2 Srockholm, Sweden D. Rojas , (1)Brigham Young University, Provo, UT, (2)Colorado State University, Fort Collins, CO 441.035 Pressing a Button and Drinking from a Cup: Upper Extremity Movements during Activities of Daily Living in Children with Autism 441.043 Sensory Responsivity in Social and Non-Social Contexts 1 Spectrum Disorder N. E. Fears, T. Templin and H. L. Miller, University of of Toddlers at Risk for Autism Spectrum Disorder J. Gunderson , E. 1 2 3 4 5 North Texas Health Science Center, Fort Worth, TX Worthley , R. Grzadzinski , K. Botteron , S. R. Dager , A. M. Estes , H. C. Hazlett6, R. T. Schultz7, L. Zwaigenbaum8, J. Piven9 and J. J. Wolff1, 441.036 Relationships between Visual Fixation and Goal- (1)University of Minnesota, Minneapolis, MN, (2)University of North Directed Body Movement Differ between Autism Spectrum Disorder, Carolina Chapel Hill, Chapel Hill, NC, (3)Washington University School of Developmental Coordination Disorder, and Typical Development. H. L. Medicine, St. Louis, MO, (4)Radiology, University of Washington, Seattle, Miller, N. E. Fears and N. L. Bugnariu, University of North Texas Health WA, (5)Speech and Hearing Sciences, University of Washington, Seattle, Science Center, Fort Worth, TX WA, (6)*co-senior author, University of North Carolina, Chapel Hill, NC, (7)Center for Autism Research, Children’s Hospital of Philadelphia, 441.037 Repetitive and Restricted Behaviours and Anxiety in Autism Philadelphia, PA, (8)University of Alberta, Edmonton, AB, Canada, Spectrum Disorder: A Systematic Review and Meta-Analysis T. J. (9)*Co-senior author, University of North Carolina, Chapel Hill, NC Sellick1, K. Williams2 and A. Ure3, (1)School of Psychological Sciences, Monash University, Clayton, VIC, Australia, (2)Department of Paediatrics, Monash University, Melbourne, VIC, Australia, (3)Department of Paediatrics, Monash University, Clayton, VIC, Australia

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441.044 Sensory-Phenotype Clusters across Children with Autism 441.051 The Relationship between Sensory Reactivity Differences and ADHD C. Yang1, N. E. Scheerer2, Z. Ding3, B. Stojanoski1, E. and Mental Health Symptoms in Preschool-Age Autistic Children T. Anagnostou4, E. Kelley5, S. Georgiades6, J. Crosbie7, R. Schachar8, Rossow1, K. MacLennan2 and T. Tavassoli2, (1)Centre for Autism, X. Liu9, R. A. Stevenson10 and R. Nicolson11, (1)Western University, School of Psychology & Clinical Language Sciences, University or London, ON, Canada, (2)Psychology, Western University, London, Reading, Reading, United Kingdom, (2)Centre for Autism, School of ON, Canada, (3)Western Univeristy, London, ON, Canada, (4)Autism Psychology & Clinical Language Sciences, University of Reading, Research Center, Bloorview Research Institute, Holland Bloorview Kids Reading, United Kingdom Rehabilitation Hospital, Toronto, ON, Canada, (5)Queen’s University, Kingston, ON, Canada, (6)McMaster Autism Research Team, McMaster 441.052 The Relationship between Sensory Sensitivity and Fine University, Hamilton, ON, Canada, (7)Psychology, The Hospital for Sick Motor Function across Neurodevelopmental Disabilities: A Case for the Children, Toronto, ON, Canada, (8)Psychiatry, The Hospital for Sick Research Domain Criteria (RDoC) Framework Z. E. Arnold, R. Gahan, Children, Toronto, ON, Canada, (9)Genomics, Queen’s Genomics Lab T. Hilty, S. E. O’Kelley and K. C. Guest, The University of Alabama at at Ongwanada, Kingston, ON, Canada, (10)Brain and Mind Institute, Birmingham, Birmingham, AL University of Western Ontario, London, ON, Canada, (11)University of 441.053 Towards Mechanistic Quantification of Motor Challenges in Western Ontario, London, ON, Canada Autism during a Functional Dressing Task A. Ardalan1, A. H. Assadi2 3 441.045 Somatosensory Profiles of Children with ASD, Carriers of and B. G. Travers , (1)Zuckerman Institute, Columbia University, New a 16p11.2 Deletion and Typically Developing Children Using a Multi- York, NY, (2)University of Wisconsin-Madison, Madison, WI, (3)University Method Approach J. M. Almeida Osório, B. Rodríguez-Herreros, P. Yu, of Wisconsin - Madison, Madison, WI D. Romascano, V. Junod, S. Richetin, N. Chabane, M. Jequier Gygax 441.054 Understanding the Non-Social Domain of Autism in Autistic and A. M. Maillard, Lausanne University Hospital, Lausanne, Switzerland Adults R. Grove1, S. Begeer2, A. M. Scheeren2, R. F. Weiland2 and 3 441.046 Temperament and Self-Injurious Behavior Among Infant R. A. Hoekstra , (1)University of Technology Sydney, Sydney, NSW, Siblings of Children with Autism A. F. Dimian1, A. M. Estes2, J. T. Australia, (2)Vrije Universiteit, Amsterdam, Netherlands, (3)Department Elison1, L. Zwaigenbaum3, J. Piven4 and J. J. Wolff1, (1)University of Psychology, King’s College London, London, United Kingdom of Minnesota, Minneapolis, MN, (2)Speech and Hearing Sciences, 441.055 White Matter Microstructural Correlates of Parent-Reported University of Washington, Seattle, WA, (3)University of Alberta, Sensory Hyporesponsivity, Hyperresponsivity, Sensory Seeking, and Edmonton, AB, Canada, (4)*Co-senior author, University of North Enhanced Perception in Children with ASD and Typical Development Carolina, Chapel Hill, NC A. Riaz1, O. J. Surgent1, K. K. Ausderau1, D. C. Dean2, A. L. Alexander3 1 441.047 The First Fundamental Movement Skill Intervention and B. G. Travers , (1)University of Wisconsin - Madison, Madison, WI, Delivered As Applied Behavior Analysis: Preschoolers with ASD Gain (2)Pediatrics & Medical Physics, University of Wisconsin - Madison, the Equivalent of 2.5 Years of Skills I. T. Felzer-Kim1, J. L. Hauck2 Madison, WI, (3)Medical Physics & Psychiatry, University of Wisconsin - and J. B. Plavnick3, (1)College of Human Medicine, Department of Madison, Madison, WI Kinesiology, Michigan State University, East Lansing, MI, (2)Department of Kinesiology, College of Education, Michigan State University, East Lansing, MI, (3)Counseling, Educational Psychology, and Special Poster Session Education, Michigan State University, East Lansing, MI Poster 442 - Service Delivery/Systems of Care 441.048 The Impact of ADHD Symptoms and Age on Sensory Features in Autism E. C. Masters1, E. P. McKernan2, J. Kopec2, E. A. 442.001 A Collaborative Psychiatric-Genetics Inpatient Service and Kaplan-Kahn1, E. L. Cary1, E. Matsuba1, A. Rodrigues1, C. MacKenzie1 Outpatient Clinic Improves Accessibility to Genetics Evaluation and and N. Russo1, (1)Department of Psychology, Syracuse University, Testing for Patients with Autism Spectrum Disorder and Intellectual Syracuse, NY, (2)Psychology, Syracuse University, Syracuse, NY Disability A. Shillington1, M. Lamy2, C. A. Erickson1, K. Dominick1 and R. Hopkin1, (1)Cincinnati Children’s Hospital Medical Center, Cincinnati, 441.049 The Relationship between Body Language, Enjoyment, and OH, (2)Division of Child and Adolescent Psychiatry, Cincinnati Children’s Performance during Motor Skill Tasks in Children with Autism Spectrum Hospital Medical Center, Cincinnati, OH Disorder (ASD) I. D. Naiman1, K. P. Arbour-Nicitopoulos2, J. A. Brian3 and V. Wright4, (1)Rehabilitation Sciences Institute, University of Toronto, 442.002 A Systematic Review of Healthcare Professionals’ Toronto, ON, Canada, (2)Faculty of Kinesiology and Physical Education, Knowledge, Self-Efficacy and Attitudes Towards Working with Autistic Mental Health and Physical Activity Research Centre, University of People K. Corden1, R. Brewer1 and E. Cage2, (1)Department of Toronto, Toronto, ON, Canada, (3)Holland Bloorview Kids Rehabilitation Psychology, Royal Holloway, University of London, Egham, United Hospital, Toronto, ON, Canada, (4)Bloorview Research Institute, Holland Kingdom, (2)Department of Psychology, University of Stirling, Stirling, Bloorview Kids Rehabilitation Hospital, Toronto, ON, Canada United Kingdom

441.050 The Relationship between Developmental Coordination 442.003 Adaptation and Piloting of the Who Caregivers Skills Training Disorder and Concurrent Deficits in Social Communication and Programme for Remote Delivery C. Ferrante1, P. Sorgato1, S. Ghersi2, A. Repetitive Behaviors Among Children with Autism Spectrum Disorder Salandin2, S. Rizzo2, T. W. CST Team3, M. L. Scattoni4, C. Servili3 and E. L. R. Ketcheson1, E. A. Pitchford2 and C. Wentz3, (1)Department of Salomone1, (1)Department of Psychology, University of Milan-Bicocca, Kinesiology, Health and Sport Studies, Wayne State University, Detroit, Milan, Italy, (2)Fondazione Paideia, Turin, Italy, (3)Department of Mental MI, (2)Department of Kinesiology, Iowa State, Ames, IA, (3)Department Health and Substance Abuse, World Health Organization, Geneva, of Kinesiology, Wayne State University, Detroit, MI Switzerland, (4)Istituto Superiore di Sanità, Rome, Italy

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442.004 Applied Behavior Analysis Disparities for Medicaid-Enrolled 442.011 Do Family Characteristics Influence Providers’ Use of Individuals with Autism: A Multilevel Analysis D. Straiton1, B. R. Evidence-Based Practices? L. Tomczuk and M. Pellecchia, University of Ingersoll1, D. Kashy1 and B. S. Groom2, (1)Psychology, Michigan State Pennsylvania, Philadelphia, PA University, East Lansing, MI, (2)Mid State Health Network, Lansing, MI 442.012 Does Hcbs Enrollment Bridge Racial-Ethnic Gap in 442.005 Assessing Child Life Specialists’ Knowledge, Competency, Community-Based Service Use Among Autistic Adults? W. Song1, and Comfort Levels Caring for Pediatric Patients with Autism Spectrum L. Shea2 and S. Tao3, (1)Temple University, Philadelphia, PA, (2) Disorder K. Lavery1, A. A. Weimer1 and K. R. Warnell2, (1)School of A.J. Drexel Autism Institute, Philadelphia, PA, (3)Drexel University, Family and Consumer Sciences, Texas State University, San Marcos, Philadelphia, PA TX, (2)Department of Psychology, Texas State University, San Marcos, TX 442.013 Echo Autism: Characterizing Children Diagnosed with Tier 1 Autism By Echo Graduates in Missouri B. Gois1, K. Sohl1, J. Reken2 and 442.006 Caregivers-Mediated Intervention in Brazil through Who CST T. Hanson3, (1)Department of Child Health, University of Missouri, School Program Implementation in Public and Universal Health Care System. of Medicine, Columbia, MO, (2)Child Health, University of Missouri, E. Matos1, C. C. Rauen2, G. M. S. Doria2, M. D. F. J. Minetto3, A. M. Columbia, MO, (3)Child health, University of Missouri-Columbia School Choinski3, R. Massuda2, C. Geyer2, S. Antoniuk2, J. Braga Filho2, L. P. of Medicine, Columbia, MO Santos2, C. Guilhardi4, V. Braga2, A. H. Braga2, K. H. Nogara5, M. S. O. Alencar3 and T. W. CST Team6, (1)Founder, Ico Project Foundation, 442.014 Echo Autism: Innovations in Workforce Development to Curitiba, Brazil, (2)Psychiary, Federal University of Paraná, Curitiba, Bridge the Specialty to Generalist Gap and Optimize the Continuum of 1 2 3 Brazil, (3)Education, Federal University of Paraná, Curitiba, Brazil, (4) Autism Care. K. Sohl , R. Brown , N. C. Cheak-Zamora , V. Nanclares- 4 5 Cintia Guilhardi ABA Services, Sao Paulo, Brazil, (5)Autism Research Nogues and M. O. Mazurek , (1)Department of Child Health, University and Service, Ico Project Foundation, Curitiba, Brazil, (6)Department of Missouri, School of Medicine, Columbia, MO, (2)KUMC, Wichita, KS, of Mental Health and Substance Abuse, World Health Organization, (3)Health Sciences, University of Missouri, Columbia, MO, (4)Pediatric Geneva, Switzerland Developmental Center, AIMMC, Advocate Children’s Hospital, Chicago, IL, (5)University of Virginia, Charlottesville, VA 442.007 Cost-Benefit and Cost-Effectiveness of a Specialized, Patient-Centered, Primary Care Clinic Designed with Autistic Adults and 442.015 Echo Education: Autism in Schools – Pilot Data from a Their Caregivers B. N. Hand1, C. Hanks2 and J. Garvin3, (1)Health and Teleconsultation Model Providing Educational and Behavioral Supports Rehabilitation Sciences, The Ohio State University, Columbus, OH, (2) to Educators of Students with Autism R. E. Nevill, G. E. Lovette and M. The Ohio State Unviersity Wexner Medical Center, Hilliard, OH, (3)Health O. Mazurek, University of Virginia, Charlottesville, VA Information and Management Systems, The Ohio State University, 442.016 Emergency Department Utilization Among Youth with Autism Columbus, OH Spectrum Disorder: Exploring the Role of Preventive Care, Medical 442.008 COVID-19 Health and Social Care Access for Autistic Home, and Mental Health E. Sadikova, N. Badgett, M. Menezes and M. People and Individuals with Intellectual Disability: A European Policy O. Mazurek, University of Virginia, Charlottesville, VA Review B. Oakley1, J. Tillmann2, A. N. Ruigrok3, A. Baranger4, C. 442.017 Emergency Department Utilization By Adolescents and Takow4, T. Charman5, &. Eurosibs Team6, J. Cusack7, M. Doherty8, P. Young Adults with Autism Spectrum Disorder D. A. Iannuzzi1, M. Violland9, A. Wroczyńska10, E. Simonoff11, J. K. Buitelaar12, L. Gallagher13 Hall2, N. Oreskovic3, E. Aryee3, S. broder-Fingert4, J. M. Perrin5 and K. and D. Murphy14, (1)Forensic and Neurodevelopmental Sciences, Kuhlthau6, (1)125 Nashua Street, MassGeneral Hospital, Boston, MA, (2) Institute of Psychiatry, Psychology and Neuroscience, King’s College National Assocaition of Children’s Hospitals, Lenexa, KS, (3)Pediatrics, London, London, United Kingdom, (2)Institute of Psychiatry, Psychology Mass General Hospital, Boston, MA, (4)Boston Medical Center, Boston, and Neuroscience, King’s College London, London, United Kingdom, (3) MA, (5)Harvard Medical School, Boston, MA, (6)Massachusetts General University of Cambridge, Cambridge, United Kingdom, (4)Autism Europe, Hospital, Boston, MA Brussels, Belgium, (5)Department of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United 442.018 Examining Sociodemographic Disparities in Amount Kingdom, (6)Birkbeck, London, United Kingdom, (7)Autistica, London, and Type of Intervention Use H. S. Durham1 and A. J. Harrison2, United Kingdom of Great Britain and Northern Ireland, (8)Our Ladies’ (1)Education, University of Georgia, Athens, GA, (2)Educational Hospital, Navan, Ireland, Navan, Ireland, (9)A-Rep AIMS-2-TRIALS, Psychology, University of Georgia, Athens, GA France, France, (10)Medical University of Gdansk, Gdansk, Poland, (11)King’s College London, Institute of Psychiatry, Psychology and 442.019 From Science to Service: Seeking Evidence for the Neuroscience, London, United Kingdom, (12)Department of Cognitive Translation of Basic Research into Community-Based Practice P. Neuroscience, Donders Institute for Brain, Cognition and Behaviour, Doehring, ASD Roadmap, Chadds Ford, PA Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, (13)Trinity College Dublin, Dublin, Ireland, (14)Department of Forensic 442.020 Health Related Quality of Life of Children with ASD 1 and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology Experiencing Inpatient Psychiatric Hospitalization M. McCabe , K. 1 2 and Neuroscience, King’s College London, London, United Kingdom Bocek and A. D. Desai , (1)Seattle Children’s Research Institute, Seattle, WA, (2)Department of Pediatrics, University of Washington, 442.009 Disruptions to Services Accessed By Families of Autistic Seattle Children’s Research Institute, Seattle, WA Individuals during the COVID-19 Pandemic S. J. Howe1, J. A. Weiss2, C. M. Kerns3 and C. McMorris4, (1)University of Calgary, Calgary, AB, Canada, (2)Psychology, York University, Toronto, ON, Canada, (3) University of British Columbia, Vancouver, BC, Canada, (4)Department of Paediatrics, University of Calgary, Calgary, AB, Canada

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442.021 How Can We Deliver Timely and High Quality Diagnostic 442.028 Looking at the Big Picture: Stakeholder Perspectives on Assessment for Children with Possible Autism in the UK: A Rapid Realist the Implementation Outcomes of a CBT Program for Students with ASD Review of Autism Service Delivery Literature. V. J. Abrahamson1, W. and Anxiety within Diverse Public Schools K. Pickard1,2, A. T. Meyer3, J. Zhang1, W. Farr2, I. Male3, J. R. Parr4, L. Kenny5, V. Grahame6, A. N. Reyes1, T. Tanda4 and J. Reaven1, (1)JFK Partners, University of Allard7, H. Gage8, V. Reddy9, G. Saunders10, P. Shaw7, P. Williams8 and Colorado Anschutz Medical Campus, Aurora, CO, (2)Emory University P. M. Wilson11, (1)University of Kent, Canterbury, United Kingdom, (2) School of Medicine; Marcus Autism Center, Atlanta, GA, (3)JFK Sussex Community NHS Trust, Haywards Heath, United Kingdom, (3) Partners, University of Colorado School of Medicine, Aurora, CO, (4) Mid Sussex Child Develoment Team, Sussex Community NHS Trust, Developmental Pediatrics, Children’s Hospital Colorado, Aurora, CO Haywards Heath, United Kingdom, (4)Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom, 442.029 Measuring the Association between Behavioural (5)Centre for Research in Autism and Education (CRAE), London, Interventions and Outcomes in Young Children with Autism Spectrum 1 2 3 3 United Kingdom of Great Britain and Northern Ireland, (6)Cumbria, Disorder K. Tsiplova , W. J. Ungar , P. Szatmari , K. Cost , E. 3 4 5 6 7 Northumberland, Tyne and Wear NHS Foundation Trust, Newcastle Pullenayegum , E. Duku , J. Volden , J. Cleve , J. den Otter , P. 8 9 10 5 11 upon Tyne, United Kingdom, (7)Council for Disabled Children, London, Mirenda , I. M. Smith , C. Waddell , L. Zwaigenbaum , T. Bennett , 12 13 14 8 United Kingdom, (8)University of Surrey, Guilford, United Kingdom, (9) M. Elsabbagh , S. Georgiades , A. Zaidman-Zait and C. M. Kerns , Cambridge and Peterborough NHS Foundation Trust, Peterborough, (1)University of Toronto / The Hospital for Sick Children, Toronto, ON, United Kingdom, (10)W Sussex Parent Carer Forum, Worthing, United Canada, (2)The Hospital for Sick Children Research Institute, Toronto, Kingdom, (11)Centre for Health Service Studies, University of Kent, ON, Canada, (3)The Hospital for Sick Children, Toronto, ON, Canada, Canterbury, United Kingdom (4)Offord Centre for Child Studies, McMaster University, Hamilton, ON, Canada, (5)University of Alberta, Edmonton, AB, Canada, (6)Ontario 442.022 Impact of ASC/LD (Autistic Spectrum Disorder/Learning Ministry of Children and Youth Services, Toronto, ON, Canada, (7) Disability) Specific Training for North West Prison and Probation Staff. Education and Early Childhood Development, Fredericton, NB, Canada, H. Judge1 and C. Hughes2, (1)National Autistic Society, London, United (8)University of British Columbia, Vancouver, BC, Canada, (9)Dalhousie Kingdom, (2)National Autistic Society, Northenden, United Kingdom of University / IWK Health Centre, Halifax, NS, CANADA, (10)Simon Fraser Great Britain and Northern Ireland University, Vancouver, BC, Canada, (11)Offord Centre for Child Studies, McMaster University, Hamilton, ON, CANADA, (12)Neurology and 442.023 Improving Health Care Access and Hospitalization Rates Neurosurgery, McGill University, Montreal, QC, Canada, (13)McMaster in Patients with Autism Spectrum Disorder and/or Intellectual Disability Autism Research Team, McMaster University, Hamilton, ON, Canada, 1 through Utilizing a Nurse Care Management Model A. Hogan , M. (14)Tel-Aviv University, Tel-Aviv, Israel Lamy2, L. Terhune2, C. Frye2 and M. Zeinner2, (1)University of Cincinnati College of Medicine, Cincinnati, OH, (2)Division of Child and Adolescent 442.030 Obtaining a First Diagnosis of Autism Spectrum Disorder: Psychiatry, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH Process Characteristics and Parent Perceptions from a National Sample K. T. MacKenzie and S. M. Eack, University of Pittsburgh School of 442.024 Increasing Access to Diagnostic Evaluations and Ongoing Social Work, Pittsburgh, PA Care for Autism across Washington State A. Bravo1, J. Gerdts1, J. Mannheim2, C. Mutti-Driscoll1, J. Mancini2 and G. Stobbe2, (1)University 442.031 Occupational Therapy Service Utilization in Children of Washington, Seattle, WA, (2)Seattle Children’s Autism Center, Seattle, with ASD E. Campi1, J. Sideris1, A. Phillips1, A. M. Wiles2, V. H. Vera WA Carrasquero1, K. K. Ausderau3 and G. T. Baranek1, (1)Chan Division of Occupational Science and Occupational Therapy, University of Southern 442.025 Innovations in Caregiver Skills Training: Amplifying the California, Los Angeles, CA, (2)Wesley College, Dover, DE, (3)University Reach through Echo Autism and Virtual Delivery in Rural America. M. of Wisconsin - Madison, Madison, WI Tregnago1, P. Dixon2, A. Curran3, M. Mahurin3, T. W. CST Team4, C. Nava5, J. Marshall6 and K. Sohl3, (1)Easterseals Midwest, Columbia, 442.032 Outcomes Among Caregivers of Toddlers with ASD MO, (2)Wayne State University, Ann Arbor, MI, (3)Department of Child Concerns Following Implementation of Screen-Refer-Treat, a Novel Health, University of Missouri, School of Medicine, Columbia, MO, (4) Service Delivery Model for Early ASD Detection and Intervention T. Department of Mental Health and Substance Abuse, World Health DesChamps1, H. Neiderman1, L. V. Ibanez2, C. C. Dick1, S. M. Attar3 and Organization, Geneva, Switzerland, (5)Psychological Science, University W. L. Stone1, (1)Psychology, University of Washington, Seattle, WA, (2) of Texas Rio Grande Valley, Edinburg, TX, (6)Easterseals Midwest, St. UW READi Lab, Seattle, WA, (3)University of Washington, Seattle, WA Louis, MO 442.033 Predictors of Service Priorities during COVID-19 and Beyond 442.026 Integrating Input from Service Providers and Service M. Jimenez Munoz1, E. F. Ferguson1, H. Feerst2 and T. W. Vernon1, (1) Recipients Relative to Autism Spectrum Disorder and Mental Health University of California Santa Barbara, Santa Barbara, CA, (2)University Issues: Toward Knowledge for Action. D. B. Nicholas1, W. Mitchell2 and of California, Santa Barbara, Santa Barbara, CA R. Zulla3, (1)University of Calgary, Edmonton, AB, Canada, (2)University of Calgary, Calgary, AB, Canada, (3)School of Public Health, University 442.034 Project Echo Autism: Building Capacity Among Community 1 2 3 of Alberta, Edmonton, AB, Canada Mental Health Providers N. Dreiling , M. L. Cook , E. M. Lamarche and L. G. Klinger1, (1)TEACCH Autism Program; Psychiatry, University 442.027 Investigating Access to State-Funded, Part C Early of North Carolina, Chapel Hill, NC, (2)TEACCH Autism Program; Intervention Services in Children Evaluated for Autism Spectrum Psychology & Neuroscience, University of North Carolina, Chapel Hill, Disorder A. I. Mendez1, C. Klaiman2, A. Klin2 and K. Pickard3, (1) NC, (3)Psychiatry, UNC TEACCH Autism Program, Chapel Hill, NC Marcus Autism Center, Children’s Healthcare of Atlanta and Emory University Department of Psychology, Atlanta, GA, (2)Marcus Autism 442.035 Psychological Wellbeing and Service Satisfaction during Center, Children’s Healthcare of Atlanta and Emory University School of COVID-19 and Beyond E. F. Ferguson, M. Jimenez Munoz, H. Feerst Medicine, Atlanta, GA, (3)Emory University School of Medicine, Atlanta, and T. W. Vernon, University of California Santa Barbara, Santa Barbara, GA CA 138 • INSAR 2021 VIRTUAL ANNUAL MEETING • EPOSTERS ON-DEMAND ACCESS WITH ONLINE Q&A

442.037 Service and Support Needs in Families of Autistic Children 442.045 Use and Intention to Use Mental Health Services Among during the COVID-19 Pandemic J. Shim1, V. C. Fong2 and G. Iarocci3, College Students with Autism Spectrum Disorder J. Anbar1,2, C. (1)Simon Fraser University, Vancouver, BC, Canada, (2)Psychology, Cutshaw1, P. Haynes1, M. Barnett3, P. Glider4 and S. Pettygrove1, (1) Simon Fraser University, Vancouver, BC, Canada, (3)Psychology, Simon Mel and Enid Zuckerman College of Public Health, University of Arizona, Fraser University, Burnaby, BC, Canada Tucson, AZ, (2)Southwest Autism Research & Resource Center (SARRC), Phoenix, AZ, (3)Norton School of Family and Consumer 442.038 Systematic Review of ASD Intervention Services and Sciences, University of Arizona, Tucson, AZ, (4)Campus Health, 1 2 Treatment Programs in Africa J. M. Pierucci , A. M. Hernandez , H. University of Arizona, Tucson, AZ Lucente1, G. A. Aquino3 and G. Garcia4, (1)Psychology, St. Mary’s University, San Antonio, TX, (2)Research Imaging Institute, University 442.046 Using the Telemedicine during the COVID-19: A Working of Texas Health Science Center - San Antonio, San Antonio, TX, (3) Model to Meet the Needs of Parents and Children with Autism Spectrum The University of Texas at Austin, Austin, TX, (4)Texas Tech University, Disorder A. Narzisi1, C. Blandino2, D. Di Stefano2, A. Rocchi2 and M. Lubbock, TX Pinzino2, (1)IRCCS Stella Maris Foundation, Pisa (Calambrone), Italy, (2) CETRA, Calambrone (Pisa), Italy 442.039 Systemic Racism Continues: Disparities in Eligibility for U.S. Public Health Programs and Spending Among Autistic Adults T. 442.047 Who Caregivers Skills Training Delivery Adaptation during W. Benevides1, H. J. Carretta2, G. Rust3 and L. Shea4, (1)Occupational COVID-19 Pandemic in a Public Service at Brazilian Health Care Context Therapy, Augusta University, Augusta, GA, (2)Behavioral Sciences A. M. Choinski1, M. D. F. J. Minetto1, E. Matos2, G. M. S. Doria3, R. and Social Medicine, Florida State University College of Medicine, Massuda3, C. Geyer3, S. Antoniuk3, J. Braga Filho3, C. C. Rauen3, L. P. Tallahassee, FL, (3)Florida State University, Tallahassee, FL, (4)A.J. Santos3, V. Braga3, K. H. Nogara4, M. S. O. Alencar1, C. Guilhardi5 and Drexel Autism Institute, Philadelphia, PA T. W. CST Team6, (1)Education, Federal University of Paraná, Curitiba, Brazil, (2)Founder, Ico Project Foundation, Curitiba, Brazil, (3)Psychiary, 442.040 The Impact of COVID-19 on the IDD Community in Federal University of Paraná, Curitiba, Brazil, (4)Autism Research and California: Service Delivery and Regional Centers G. B. Salinas, Y. Service, Ico Project Foundation, Curitiba, Brazil, (5)Cintia Guilhardi Bolourian and J. Blacher, Graduate School of Education, University of ABA Services, Sao Paulo, Brazil, (6)Department of Mental Health and California, Riverside, Riverside, CA Substance Abuse, World Health Organization, Geneva, Switzerland

442.041 The Impact of Learning to Play the Piano on the Emotion 442.049 “They Looked at Me As a Person, Not Just a Diagnosis”: 1 and Behaviour Regulation of Autistic Teenagers. R. Cowie , S. Fletcher- A Qualitative Study of Barriers and Facilitators to Care at a Specialized 2 1 Watson and R. MacDonald , (1)University of Edinburgh, Edinburgh, Patient Centered Primary Care Clinic for Autistic Adults B. N. Hand1, United Kingdom, (2)Salvesen Mindroom Research Centre, University of D. Gilmore2, L. Harris2, A. Darragh3, C. Hanks4, D. Coury5, S. Moffatt- Edinburgh, Edinburgh, United Kingdom Bruce6 and J. Garvin7, (1)Health and Rehabilitation Sciences, The Ohio State University, Columbus, OH, (2)The Ohio State University, 442.042 The Importance and Availability of Adjustments to Improve Columbus, OH, (3)Division of Occupational Therapy, The Ohio State Access for Autistic Adults Who Need Mental and Physical Healthcare: University, Columbus, OH, (4)The Ohio State Unviersity Wexner Medical Findings from a UK Survey S. Brice1, J. Rodgers1, B. Ingham1,2, D. Center, Hilliard, OH, (5)Nationwide Children’s Hospital, Columbus, Mason3, C. Wilson1, M. Freeston4, A. LeCouteur1 and J. R. Parr1,2, (1) OH, (6)Department of Surgery, The Ohio State University, Columbus, Population Health Sciences Institute, Newcastle University, Newcastle OH, (7)Health Information and Management Systems, The Ohio State upon Tyne, United Kingdom, (2)Cumbria, Northumberland, Tyne and University, Columbus, OH Wear NHS Foundation Trust, Newcastle upon Tyne, United Kingdom, (3)Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom, (4)School of Psychology, Newcastle University, Poster Session Newcastle upon Tyne, United Kingdom Poster 443 - Social Cognition and Social Behavior 442.043 The Role of Advocacy and Empowerment in Shaping Service Development for Autism and Other Developmental Disorders 443.001 A Cross-Cultural Comparison of the Relation between 1 Z. Szlamka1, B. T. Tekola2, C. Hanlon3 and R. A. Hoekstra2, (1)King’s Autistic Traits and Adherence to Politeness Norms K. R. Warnell , 1 2 College London, London, United Kingdom, (2)Department of Psychology, J. M. Clegg and R. Kok , (1)Department of Psychology, Texas State King’s College London, London, United Kingdom, (3)Addis Ababa University, San Marcos, TX, (2)Department of Psychology, Education University and King’s College London, Addis Ababa, Ethiopia and Child Studies, Erasmus University Rotterdam, Rotterdam, Netherlands 442.044 Understanding Provider and Family Experiences with Telehealth Services for Children with Autism and Developmental 443.002 ASD Traits Predict Preference Towards Social Mimicry in 1 1 2 Disabilities M. L. Luu1,2, G. Duhon1,2, L. N. Berry1,2, R. G. Voigt1,2, R. a Subclinical Sample L. H. Tan , R. M. Ford , A. Morrison and S. D. 3 H. Fein1,2, S. Cash1,2 and R. P. Goin-Kochel1,2, (1)Baylor College of Stagg , (1)Psychology, Anglia Ruskin University, Cambridge, United Medicine, Houston, TX, (2)Texas Children’s Hospital, Houston, TX Kingdom, (2)Sports and Exercise Science, Anglia Ruskin University, Cambridge, United Kingdom, (3)Anglia Ruskin University, Cambridge, United Kingdom

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443.003 Application of the Joint Engagement Rating Inventory to 443.013 Camouflaging of Autistic Traits in Non-Autistic Adults Is Preschool- and School-Aged Children with Autism Spectrum Disorder Associated with Poorer Mental Health M. Somerville1, S. Fletcher- and Typical Development during a Parent-Child Free Play Interaction Watson2 and S. E. MacPherson3, (1)Psychology Department, University M. Sabatos-DeVito1, A. Bey2, R. Simmons3, J. Troy2, C. Sullivan2, S. of Edinburgh, Edinburgh, United Kingdom, (2)Salvesen Mindroom Compton4, K. L. Carpenter4, M. Spanos4, L. Franz5, N. O. Davis6, R. Research Centre, University of Edinburgh, Edinburgh, United Kingdom, E. Aiello4, L. Sikich4, S. H. Kollins6 and G. Dawson4, (1)Psychiatry and (3)Department of Psychology, University of Edinburgh, Edinburgh, United Behavioral Sciences, Duke Center for Autism and Brain Development, Kingdom Durham, NC, (2)Duke University, Durham, NC, (3)Department of Biostatistics and Bioinformatics, Duke University, Durham, NC, (4) 443.014 Can Autistic Children Discriminate Intentional from Incidental Department of Psychiatry and Behavioral Sciences, Duke Center for Pointing Gestures in a Word Learning Context? P. Maes, F. Stercq Autism and Brain Development, Durham, NC, (5)Duke Center for Autism and M. Kissine, ACTE — Center of research in Linguistics — ULB and Brain Development, Department of Psychiatry and Behavioral Neuroscience Institute, Université libre de Bruxelles, Brussels, Belgium Sciences, Duke University, Durham, NC, (6)Department of Psychiatry 443.015 Comparison of Social Skills Deficits and Strengths Profiles in and Behavioral Sciences, Duke ADHD Program, Duke University Medical Youth with Autism Spectrum Disorder and Attention Deficit Hyperactivity Center, Durham, NC Disorder J. A. Gates1, A. H. Gerber1, C. E. Miller2 and M. D. Lerner1, (1) 443.004 Attentional Bias to Positive and Negative Social Scenes Department of Psychology, Stony Brook University, Stony Brook, NY, (2) Differs Based on Traits Related to Social Anxiety J. Burk1, G. Haffner1, University of British Columbia, Vancouver, BC, Canada C. Dintino1 and C. L. Dickter2, (1)William & Mary, Williamsburg, VA, (2) 443.016 Concerns and Stress Among Autistic and Neurotypical College of William and Mary, Williamsburg, VA Adolescents during the COVID-19 Pandemic T. Simantov and F. 443.005 Autism/Autistic Traits and Belief in a Just World A. Uzefovsky, Ben-Gurion University of the Negev, Be’er-Sheva, Israel Bertrams, University of Bern, Bern, Switzerland 443.017 Correlation between Face-to-Face and Digital Social 443.006 Autistic Adults, but Not Non-Autistic Adults, Accurately Interaction and Suicidality in Autistic and Socially Anxious Individuals D. 1 1 1 1 2 1 Detect Social Interest of Conversational Partners K. M. DeBrabander, K. Gifford , L. Parker , S. Gilliat , J. Wild , C. Timpson , D. Melanson , J. 3 4 E. Morrison, D. R. Jones and N. J. Sasson, University of Texas at Dallas, A. Nielsen and M. South , (1)Neuroscience, Brigham Young University, Richardson, TX Provo, UT, (2)Psychology, Brigham Young University, Provo, UT, (3) Brigham Young University, Provo, UT, (4)Psychology & Neuroscience, 443.007 Autistic Community Connectedness As a Moderator of the Brigham Young University, Provo, UT Effect of Minority Stress on Mental Health in the Autistic Population M. Botha1, B. Dibb2, P. Rusconi3 and D. M. Frost4, (1)Psychology, University 443.018 Determining What Factors Contribute to Atypical Social of Stirling, Stirling, United Kingdom, (2)University of Surrey, Guildford, Motivation in ASD C. M. Hudac and N. R. Friedman, Center for Youth United Kingdom, (3)School of Psychology, University of Surrey, Development and Intervention, Department of Psychology, University of Guildford, United Kingdom, (4)Thomas Coram Research Unit, University Alabama, Tuscaloosa, AL College London, London, United Kingdom 443.019 Development of a Coding Scheme for Social Interactivity 1 443.008 Autistic Girls Smile More Than Autistic Boys during Natural in ASD and Related Developmental Disorders C. Rosensweig , B. 1,2 1 Conversations: Insights from Computer Vision C. J. Zampella, J. Gordon and K. Davis , (1)Cognitive Neurology/Neuropsychology, Parish-Morris, J. Foy, M. L. Cola, A. Riiff, M. Haley, A. Hutchinson, M. Department of Neurology, The Johns Hopkins University School of Leuzzi, L. S. Cubit, A. Hulick, K. Bartley, J. Pandey, R. T. Schultz and Medicine, Baltimore, MD, (2)Department of Cognitive Science, The J. D. Herrington, Center for Autism Research, Children’s Hospital of Johns Hopkins University, Baltimore, MD Philadelphia, Philadelphia, PA 443.020 Developmental Effects in Physiological Stress Response to 1 443.009 Autistic Traits, Psychosocial Factors, and Depressive Social Threat in Adolescents with and without Autism B. A. Corbett , R. 1 2 2 3 Symptoms L. Camus1, E. O’Dowd2,3, K. Jones1, B. Auyeung3, G. A. Muscatello , A. Kim , S. Vandekar and K. Patel , (1)Psychiatry and Rajendran4 and M. E. Stewart4, (1)Psychology, Heriot-Watt University, Behavioral Sciences, Vanderbilt University Medical Center, Nashville, Edinburgh, United Kingdom, (2)Discipline of General Practice, National TN, (2)Department of Biostatistics, Vanderbilt University Medical Center, University of Ireland, Galway, Ireland, (3)University of Edinburgh, Nashville, TN, (3)Vanderbilt University, Nashville, TN Edinburgh, United Kingdom, (4)Heriot-Watt University, Edinburgh, United 443.023 Effects of Creative Movement Interventions on Praxis, Kingdom of Great Britain and Northern Ireland Imitation, and Interpersonal Synchrony Skills of Children with ASD W. 1 2 3 4 443.011 Behavioral Synchrony and Empathic Response to an C. Su , C. Cleffi , S. Srinivasan and A. Bhat , (1)Physical Therapy, Interaction Partner’s Distress in Adolescents with and without ASD University of Delaware, Newark, DE, (2)Physical therapy, University E. Zadok1, I. Gordon1,2, R. Navon1, S. J. Rabin1 and O. Golan1, (1) of Delaware, Newark, DE, (3)Department of Kinesiology, University of Department of Psychology, Bar-Ilan University, Ramat-Gan, Israel, (2) Connecticut, Storrs, CT, (4)Department of Physical Therapy, University Gonda Brain Research Center, Bar-Ilan University, Ramat Gan, Israel of Delaware, Newark, DE

443.012 Biological Motion and Action Perception in Autism: A 443.024 Effects of Creative Movement Interventions on Social 1 Systematic Review Y. Bai1, E. Gowen2 and E. Poliakoff2, (1)The Communication & Behavioral Skills of Children with ASD S. Srinivasan , 2 3 4 university of Manchester, Manchester, United Kingdom, (2)Division of C. Cleffi , W. C. Su and A. Bhat , (1)Department of Kinesiology, Neuroscience and Experimental Psychology, University of Manchester, University of Connecticut, Storrs, CT, (2)Physical therapy, University of Manchester, United Kingdom Delaware, Newark, DE, (3)Physical Therapy, University of Delaware, Newark, DE, (4)Department of Physical Therapy, University of Delaware, Newark, DE

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443.025 Effects of Sex, Condition, and Phenotype on Visual Attention 443.033 Global and Fine Social Perception in Children and Adults to Social Interactive Scenes in Children: Autism Biomarkers Consortium with ASD: An Eye-Tracking Study A. Vinçon-Leite1, A. Cavalcanti for Clinical Trials C. Westerhold1, F. Shic2, A. Naples3, C. Sugar4, D. Ferreira2, A. Saitovitch3, E. Rechtman4, V. Philip-Montillot1, A. Philippe5, Senturk5, G. Hellemann5, J. Dziura6, H. Seow6, G. Dawson7, S. Jeste4, N. Chabane6, H. Lemaitre7, N. Boddaert8 and M. Zilbovicius9, (1)INSERM C. A. Nelson8, R. A. Bernier9, N. M. Kleinhans10, S. J. Webb9 and J. U1000, Paris, France, (2)Inserm U1000, institut Imagine, UNICAMP, McPartland3, (1)Child Health, Behavior and Development, Seattle Paris, France, (3)INSERM, Paris, France, (4)INSERM U1000, Institut Children’s Research Institute, Seattle, WA, (2)Center for Child Health, Imagine, Paris, France, (5)Necker Hospital, Paris, France, (6)Lausanne Behavior and Development, Seattle Children’s Research Institute, University Hospital, Lausanne, Switzerland, (7)Inserm U1000, institut Seattle, WA, (3)Child Study Center, Yale University School of Medicine, Imagine, Université Paris Sud, Paris, France, (8)Hospital Necker, Paris, New Haven, CT, (4)University of California, Los Angeles, Los Angeles, France, (9)Inserm U1000, institut Imagine, Paris, France CA, (5)UCLA, Los Angeles, CA, (6)Yale University, New Haven, CT, (7)Department of Psychiatry and Behavioral Sciences, Duke Center 443.034 Imagined Contact with Individuals with Autism Improves for Autism and Brain Development, Durham, NC, (8)Developmental Typically Developing University Students’ Attitudes Towards Autism C. L. 1 2 1 1 1 1 Medicine, Boston Children’s Hospital, Boston, MA, (9)Psychiatry and Dickter , J. Burk , K. Carter , K. Burton , A. Allen , S. Mallipeddi and K. 1 Behavioral Sciences, University of Washington, Seattle, WA, (10) Fergus , (1)College of William and Mary, Williamsburg, VA, (2)William & University of Washington, Seattle, WA Mary, Williamsburg, VA

443.026 Empathic Disequilibrium in Autism I. Shalev1, P. Smith2, C. 443.035 Impact of COVID-19 on Implementation of Live Eye-Tracking 1 Allison3, S. Baron-Cohen3 and F. Uzefovsky4, (1)Psychology, Ben-Gurion Research Procedures and Social Attention in Toddlers M. Butler , R. 1 2 1 1 1 University, Jerusalem, Israel, (2)University of Cambridge, Cambridge, Foster , C. Banarjee , H. Feiner , D. M. Goncalves Fortes , E. Diamond , 1 1 1 1 United Kingdom, (3)Autism Research Centre, Department of Psychiatry, E. Brennan-Wydra , A. Boxberger , S. Macari , A. Vernetti and K. 1 University of Cambridge, Cambridge, United Kingdom, (4)Ben-Gurion Chawarska , (1)Child Study Center, Yale University School of Medicine, University of the Negev, Be’er-Sheva, Israel New Haven, CT, (2)University of Miami, Coral Gables, FL

443.027 Examining Sex Differences in Social Responsiveness 443.036 Meet Me in the Middle: The Link between Common Ground 1 2 and Concurrent Verbal Intelligence Abilities of Young Individuals in and Coordinated Joint Action in ASD and TD E. Karin , Y. Estrugo , 1 3 4 Autism Spectrum Disorders M. A. Cox1, K. Webb2, J. E. Blume3 and A. S. Bar Yehuda , R. Geva and N. B. Bauminger-Zviely , (1)School Mastergeorge4, (1)Human Development and Family Sciences, Texas of Education, Bar - Ilan University, Ramat - Gan, Israel, (2)School of Tech Universities, Lubbock, TX, (2)Human Development and Family Education, Bar - Ilan University, Ramat-Gan, Israel, (3)Psychology Sciences, Texas Tech University, Lubbock, TX, (3)Department of Human Department, Bar-Ilan University, Ramat-Gan, Israel, (4)School of Development and Family Studies, Texas Tech University, Lubbock, TX, Education, Bar Ilan University, Ramat Gan, Israel (4)Texas Tech University, Lubbock, TX 443.037 Peer Match Rather Than Autistic Diagnosis Predicts Social 443.029 Exploring Behavioral Biomarkers of Children with ASD Network Density and Strength in Real-World Peer Interaction Among Based on Physiological Data in Practice of Conversation Initiation Autistic and Non-Autistic Adolescents Y. L. Chen and K. P. Koenig, with a Social Robot H. Do1, K. Welch1, J. T. Soriano2, R. Castelly2, S. Occupational Therapy, New York University, New York, NY Daisey2, G. M. Kuravackel3, R. Pennington4, G. Barnes3 and D. Popa1, 443.038 Perceived Social Support By Typically Developing Children (1)Louisville Automation & Robotics Research Institute, University of and Children with Autism Spectrum Disorder M. Kaedbey1, H. Dahary2 Louisville, Louisville, KY, (2)Louisville Automation & Robotics Research and E. M. Quintin3, (1)McGill Unversity, Montreal, QC, Canada, (2) Institute, University of Louisville, Lousiville, KY, (3)University of Louisville McGill University, Montreal, QC, Canada, (3)Educational & Counselling School of Medicine, Louisville, KY, (4)University of North Carolina, Psychology, McGill University, Montreal, QC, Canada Charlotte, NC 443.039 Perspective-Taking, Mentalizing, and Attending to Others 443.030 Exploring the Role of Camouflaging Motivations and in Narratives from Roleplaying Games D. Schena1, A. Hillier2 and H. Consequences C. Bernardin1 and D. Bell2, (1)University of Missouri - Carroll3, (1)University of Massachusetts, Lowell, Lowell, MA, (2)University Columbia, Columbia, MO, (2)University of Missouri, Columbia, MO of Massachusetts Lowell, Lowell, MA, (3)University of Massachuetts 443.031 Eye Will Remember You: Individual Differences in Face Lowell, Lowell, MA Fixation Patterns and Recognition Accuracy Amongst Autistic and Neurotypical Adults K. B. Parkington, Psychology, University of Waterloo, Waterloo, ON, Canada

443.032 Gender Differences in Friendship Experiences, Peer Conflict, and Perceived Loneliness in Children with ASD N. Libster, V. Auriel, A. Hovey and C. Kasari, University of California, Los Angeles, Los Angeles, CA

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443.041 Sex Differences in Social Competence from 6 to 36 Months 443.049 To be Good or to be Right: Effects of Social Problem Solving in a Sample at High Familial Risk for Autism Spectrum Disorder C. A. Competence and Congruency on Social Functioning in ASD M. L. Burrows1, R. Grzadzinski2, K. Donovan3, I. C. Stallworthy4, T. St. John5, McNair1, E. J. Libsack2, V. Mondejar2, N. Mordekai2, N. Russo-Ponsaran3 N. Marrus6, J. Parish-Morris7, S. Torres-Gomez8, L. MacIntyre9, J. M. and M. D. Lerner1, (1)Department of Psychology, Stony Brook University, Hampton10, K. Botteron6, A. M. Estes11, H. C. Hazlett12, J. R. Pruett13, Stony Brook, NY, (2)Stony Brook University, Stony Brook, NY, (3)Rush R. T. Schultz7, L. Zwaigenbaum14, J. Piven15, K. Truong3, J. T. Elison16 University Medical Center, Skokie, IL and .. The IBIS Network17, (1)Pediatrics, University of Minnesota, Minneapolis, MN, (2)University of North Carolina Chapel Hill, Chapel 443.050 Use of the Children’s Communication Checklist-2 in School- 1 Hill, NC, (3)Gillings School of Global Public Health, University of North Aged Students with ASD: A Psychometric Analysis S. W. Nowell , 2 2 3 4 Carolina, Chapel Hill, NC, (4)Institute of Child Development, University of B. Tomaszewski , J. R. Steinbrenner , A. Sam and S. L. Odom , (1) Minnesota, Minneapolis, MN, (5)University of Washington, Seattle, WA, University of North Carolina - Chapel Hill, Chapel Hill, NC, (2)Frank (6)Washington University School of Medicine, St. Louis, MO, (7)Center Porter Graham Child Development Institute, University of North for Autism Research, Children’s Hospital of Philadelphia, Philadelphia, Carolina at Chapel Hill, Chapel Hill, NC, (3)Frank Porter Graham Child PA, (8)McGill Centre for Integrative Neuroscience, Montreal Neurological Development Institute, Carrboro, NC, (4)Frank Porter Graham Child Institute, Montreal, QC, Canada, (9)McGill Centre for Integrative Development Institute, University of North Carolina at Chapel Hill, San Neuroscience, Montreal Neurological Institute, McGill University, Diego, CA Montreal, QC, Canada, (10)Washington University School of Medicine in 443.051 Using Video Stimuli to Quantify Robust and Reliable St. Louis, St. Louis, MO, (11)Speech and Hearing Sciences, University Difficulties in Social Comprehension in Adults with Autism Spectrum of Washington, Seattle, WA, (12)*co-senior author, University of North Disorder T. M. Burns-Yocum1, L. Byrge2, U. Keles3, Y. S. Lograsso4, D. Carolina, Chapel Hill, NC, (13)*Co-senior author, **For the IBIS Network, Kliemann5, R. Adolphs6 and D. P. Kennedy1, (1)Psychological and Brain Washington University School of Medicine, St. Louis, MO, (14)University Sciences, Indiana University, Bloomington, IN, (2)University of North of Alberta, Edmonton, AB, Canada, (15)*Co-senior author, University Florida, Jacksonville, FL, (3)California Institute of Technology, Pasadena, of North Carolina, Chapel Hill, NC, (16)University of Minnesota, CA, (4)Division of Humanities and Social Sciences, California Institute Minneapolis, MN, (17)University of North Carolina, Chapel Hill, NC of Technology, Pasadena, CA, (5)University of Iowa, Iowa City, IA, (6) 443.042 Social Attention of Children with ASD during Live Caltech, Pasadena, CA Interactions Around a High-Interest Object J. Yang1, V. O. Nacho2, J. 443.052 Video Game Use, Aggression, and Social Impairment in Wiebe2, G. Iarocci3 and E. Birmingham1, (1)Faculty of Education, Simon Adolescents with Autism Spectrum Disorder K. Davis1, M. K. Krug1, A. Fraser University, Burnaby, BC, Canada, (2)Simon Fraser University, M. Iosif2 and M. Solomon3, (1)Department of Psychiatry & Behavioral Burnaby, BC, Canada, (3)Psychology, Simon Fraser University, Burnaby, Sciences, UC Davis MIND Institute, Sacramento, CA, (2)Public Health BC, Canada Sciences, University of California Davis, Davis, CA, (3)Department 443.043 Social Connectedness and Stress in Autistic Compared to of Psychiatry and Behavioral Sciences, The Medical Investigation of Socially Anxious Adults D. Melanson1, D. Gifford1, L. Parker1, S. Gilliat1, Neurodevelopmental Disorders (MIND) Institute, UC Davis School of J. Wild1, C. Timpson2, J. A. Nielsen3 and M. South4, (1)Neuroscience, Medicine, University of California Davis, Sacramento, CA Brigham Young University, Provo, UT, (2)Psychology, Brigham Young 443.053 Visual Scanning Patterns Predicting Theory of Mind University, Provo, UT, (3)Harvard University, Cambridge, UT, (4) Performance J. M. Moriuchi1, S. Licona2, M. Printen3, H. Lechniak4, E. V. Psychology & Neuroscience, Brigham Young University, Provo, UT Ocampo1 and L. Soorya1, (1)Department of Psychiatry, Rush University 443.044 Social Functioning and the Presentation of Anxiety in Medical Center, Chicago, IL, (2)Rush University Medical Center, Children with Autism and Co-Occurring Anxiety Disorders M. C. Chicago, IL, (3)Child and Adolescent Psychiatry; Autism Assessment Hunsche1, M. Cervin2, E. A. Storch3, P. Kendall4, J. J. Wood5 and C. M. Research and Treatment Center, Rush University Medical Center, Kerns1, (1)University of British Columbia, Vancouver, BC, Canada, (2) Chicago, IL, (4)Child and adolescent psychiatry, Rush University Medical Lund University, Lund, Sweden, (3)Baylor College of Medicine, Houston, Center, Chicago, IL TX, (4)Temple University, Philadelphia, PA, (5)Human Development & 443.054 Watch Your Step! the Link between Coordinated Joint Psychology, University of California, Los Angeles, Los Angeles, CA Action and Peer Social Engagement in ASD and TD S. Bar Yehuda1, 2 3 443.045 Social Skills Interventions for Young Adults: Fitting into Y. Estrugo and N. B. Bauminger-Zviely , (1)School of Education, a Neurotypical World? J. Monahan1, B. Freedman2, K. Pini1 and C. Bar - Ilan University, Ramat - Gan, Israel, (2)School of Education, Bar Edmondson1, (1)University of Delaware, Newark, DE, (2)Center for - Ilan University, Ramat-Gan, Israel, (3)School of Education, Bar Ilan Disabilities Studies, University of Delaware, Newark, DE University, Ramat Gan, Israel

443.046 The Factors Affecting Social Cognition in Children with 443.055 What Are the Obstacles Encountered By Autistic Children 1,2 ASD A. Q. Razaghzadeh1, J. C. Bullen2 and P. Mundy3, (1)School and Adolescents during the Pandemic in Quebec? A. Ethier , I. 3 1,2 of Education, University of California, Davis, Davis, CA, (2)University Soulieres and C. Jacques , (1)University of Quebec in Outaouais, of California, Davis, Davis, CA, (3)University of California at Davis, Gatineau, QC, Canada, (2)Autism Research Group, CIUSSS du Sacramento, CA Nord-de-l ’Île-de-Montréal, Montréal, QC, Canada, (3)Département de Psychologie, Université du Québec à Montréal, Montréal, QC, Canada 443.047 The Influence of Autism Label on Face Recognition By Non- Autistic Adults M. I. Cargill, A. J. Lampi, Z. M. Sargent, K. M. Stockwell 443.056 With Whom Would You Prefer to Interact?: Investigating and V. K. Jaswal, University of Virginia, Charlottesville, VA Context Dependent Effects of Social Behavior and Special Interests K. M. Stockwell1, J. M. Gillis2 and V. K. Jaswal1, (1)University of Virginia, 443.048 The Role of Distractibility and Emotional Engagement in Charlottesville, VA, (2)Binghamton University, Binghamton, NY Imitation in Children with Autism A. Browngoehl, K. D. Kelly and G. Vivanti, A.J. Drexel Autism Institute, Drexel University, Philadelphia, PA

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Poster Session 444.008 Temporal Binding of Body Postures into Movements in Individual Scoring High Versus Low on Autism Symptomatology: An

Poster 444 - Social Neuroscience Ssvep Study D. Oomen1,2, J. R. Wiersema1,2 and E. Cracco2,3, (1) Department of Experimental Clinical and Health Psychology, Ghent 444.001 A Diminished Neural Response to One’s Own Face in University, Ghent, Belgium, (2)Research group EXPLORA, Ghent 1,2 Autism, As Shown Using Fast Periodic Visual Stimulation A. D. Nijhof , University, Ghent, Belgium, (3)Department of Experimental Psychology, 3 4 5 6 C. Catmur , R. Brewer , J. R. Wiersema and G. Bird , (1)Institute Ghent University, Ghent, Belgium of Psychiatry, King’s College London, London, United Kingdom, (2) Department of Experimental-Clinical and Health Psychology, Ghent 444.009 The Neurobiology of Face Processing in ASD: Evidence University, Ghent, Belgium, (3)Kings College London, London, United from a Combined fMRI and Eye-Tracking Study E. A. Kaplan-Kahn1,2, Kingdom, (4)Department of Psychology, Royal Holloway, University of B. E. Yerys2, J. Pandey2, R. T. Schultz2 and J. D. Herrington2, (1) London, Egham, United Kingdom, (5)Department of Experimental Clinical Department of Psychology, Syracuse University, Syracuse, NY, (2) and Health Psychology, Ghent University, Ghent, Belgium, (6)University Center for Autism Research, Children’s Hospital of Philadelphia, of Oxford, Oxford, United Kingdom Philadelphia, PA

444.002 Attention to Novelty Vs. Habituation in Preschoolers with Autism Spectrum Disorders (ASD): An Eye-Tracking Study N. Kojovic1, L. Ben Hadid2, D. Bavelier3 and M. Schaer4, (1)Developmental Imaging and Psychopathology Lab, UNIGE, Geneva, Switzerland, (2) Poster Session Department of Psychiatry, University of Geneva, Faculty of Medicine, 1211, Switzerland, (3)Department of Psychology, University of Geneva, Poster 446 - Technological approaches Geneva, Switzerland, (4)Developmental Imaging and Psychopathology Lab, University of Geneva, Geneva, Switzerland 446.001 A Computational Approach for Analyzing Gait Synchrony and Balance in Neurodevelopmental Disorders A. Ardalan1, N. M. 444.003 Combined Frequency-Tagging EEG and Eye-Tracking Yamane2 and S. Goldman2, (1)Zuckerman Institute, Columbia University, Measures Provide No Support for the Excess Mouth/Diminished Eye New York, NY, (2)Department of Neurology, Division of Child Neurology, 1 1 Attention Hypothesis in Autism S. Vettori , S. Van der Donck , J. Columbia University Irving Medical Center, New York, NY Nys2, P. Moors3, T. Van Wesemael4, J. Steyaert5, B. Rossion6,7, M. Dzhelyova8 and B. Boets9, (1)Center for Developmental Psychiatry, KU 446.002 A Computational Tool for Automatic Analysis of Parent-Child Leuven, Leuven, Belgium, (2)IDLab - Department of Computer Science, Interaction in Autism Spectrum Disorder D. Y. Isaev1, J. M. Di Martino2, University of Antwerp - IMEC, B-2000 Antwerp, Belgium, Antwerp, Z. Chang2, R. E. Aiello3, K. L. Carpenter3, S. Compton3, N. O. Davis4, L. Belgium, (3)Laboratory of Experimental Psychology, University of Leuven Franz5, S. H. Kollins4, M. Spanos3, G. Sapiro2, M. Sabatos-DeVito6 and (KU Leuven), Leuven, Belgium, Leuven, Belgium, (4)KU Leuven, Leuven, G. Dawson3, (1)Department of Biomedical Engineering, Duke University, Belgium, (5)Leuven Autism Research Consortium (LAuRes), Leuven, Durham, NC, (2)Department of Electrical and Computer Engineering, Belgium, (6)Université de Lorraine, CNRS, CRAN - UMR 7039, F-54000 Duke University, Durham, NC, (3)Department of Psychiatry and Nancy, France, Nancy, France, (7)Université de Lorraine, CHRU- Behavioral Sciences, Duke Center for Autism and Brain Development, Nancy, Service de Neurologie, F-54000, France, Nancy, France, (8) Durham, NC, (4)Department of Psychiatry and Behavioral Sciences, Psychological Sciences Research Institute and Institute of Neuroscience, Duke ADHD Program, Duke University Medical Center, Durham, NC, UCL, Louvain-la-Neuve, Belgium, (9)Leuven Autism Research (5)Duke Center for Autism and Brain Development, Department of Consortium (LAuRes), KU Leuven, Leuven, Belgium Psychiatry and Behavioral Sciences, Duke University, Durham, NC, (6) Psychiatry and Behavioral Sciences, Duke Center for Autism and Brain 444.004 Comparing fNIRS-Based Cortical Activation during a Dyadic Development, Durham, NC Versus a Triadic Non-Verbal Communication Task in Children with and without Autism Spectrum Disorder A. Bhat1, W. C. Su2, C. Cleffi3 and D. 446.003 AI-Based Classification of Autism from Early Ecological Tsuzuki4, (1)Department of Physical Therapy, University of Delaware, Interactions G. Alvari1, P. Venuti1 and C. Furlanello2, (1)Department of Newark, DE, (2)Physical Therapy, University of Delaware, Newark, DE, Psychology and Cognitive Science, University of Trento, Rovereto, Italy, (3)Physical therapy, University of Delaware, Newark, DE, (4)Department (2)HK3 Lab, Milan, Italy of Language Sciences, Tokyo Metropolitan University, Tokyo, Japan 446.004 Assessing Affect and Physiological Responses in a 444.006 Fixation-Related fMRI: Coregistering Eye-Tracking and Psychiatric Inpatient Sample of Individuals with Autism Spectrum MR Scanning to Identify the Neural Correlates of Engagement in ASD Disorder (ASD) D. C. Cumpanasoiu1, J. B. Northrup2, C. Peura3, J. S. Koirala1, J. Pincus1, L. Li2, A. Klin3, W. Jones3 and S. Shultz3, (1) Vezzoli4, J. Montrenes5, J. Golt6, S. Lopez-Pintado1, K. Quigley1, M. Department of Pediatrics, Emory University School of Medicine, Marcus Siegel7, C. A. Mazefsky2 and M. S. Goodwin1, (1)Northeastern University, Autism Center, Atlanta, GA, (2)Marcus Autism Center, Children’s Boston, MA, (2)Department of Psychiatry, University of Pittsburgh School Healthcare of Atlanta, Emory University, Atlanta, GA, (3)Marcus Autism of Medicine, Pittsburgh, PA, (3)Spring Harbor Hospital, Westbrook, ME, Center, Children’s Healthcare of Atlanta and Emory University School of (4)University of Pittsburgh Medical Center, Pittsburgh, PA, (5)University Medicine, Atlanta, GA of Pittsburgh School of Medicine, Pittsburgh, PA, (6)The University of Alabama, Tuscaloosa, AL, (7)Maine Medical Center - Tufts School of 444.007 Neural Mechanisms of Imitation As a Social Signal in Autism Medicine, Westbrook, ME S. Krishnan-Barman1, U. Hakim1, M. Smith1, P. Pinti2 and A. Hamilton1, (1)University College London, London, United Kingdom, (2)Birkbeck College, London, United Kingdom

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446.005 Autism Navigator® Jumpstart to Coaching in Everyday 446.012 Novel Digital Outcome Measures: Community Involvement in Activities: An Innovative Method for Training Non-Profit Staff in South Research Development I. Yorke1, N. Chromik2, C. E. Grant3, L. Frangou1, Africa and Ghana N. Chambers1, J. Carter2, G. Ayoka3, P. J. de Vries4 M. Palmer1, R. Holt4, J. Man4, E. Loth5, J. K. Buitelaar6, D. Murphy5 and A. M. Wetherby5, (1)Centre for Autism Research in Africa, Division and E. Simonoff1, (1)King’s College London, Institute of Psychiatry, for Child and Adolescent Psychiatry, University of Cape Town, Cape Psychology and Neuroscience, London, United Kingdom, (2)King’s Town, South Africa, (2)Autism South Africa, Johannesburg, South Africa, College London, Institute of Psychiatry, Psychology and Neuroscience, (3)Alexis Miranda Foundation, Accra, Ghana, (4)Centre for Autism London, United Kingdom, (3)University College London, London, United Research in Africa, Division of Child & Adolescent Psychiatry, University Kingdom, (4)Autism Research Centre, Department of Psychiatry, of Cape Town, Cape Town, South Africa, (5)Florida State University University of Cambridge, Cambridge, United Kingdom, (5)Department Autism Institute, Tallahassee, FL of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United 446.006 Community Research during a Pandemic: Pivoting Kingdom, (6)Department of Cognitive Neuroscience, Donders Institute for Community-Based Trial of Parent-Mediated Intervention for ASD to a Brain, Cognition and Behaviour, Radboud University Nijmegen Medical 1 2 3 3 Telehealth Format M. Matheis , S. Dufek , S. R. Rieth , J. A. Ko and Centre, Nijmegen, Netherlands A. C. Stahmer4, (1)Psychiatry and Behavioral Sciences, University of California at Davis MIND Institute, Sacramento, CA, (2)Psychiatry, 446.013 Novel Scalable Computational Method Reveals Distinctive University of California, Davis, Sacramento, CA, (3)San Diego State Patterns of Eye Gaze in Toddlers with Autism Spectrum Disorder Z. University, San Diego, CA, (4)UC Davis MIND Institute, University of Chang1, J. M. Di Martino1, R. E. Aiello2, K. L. Carpenter2, S. Compton2, California, Davis, Sacramento, CA N. O. Davis3, S. Espinosa1, J. Flowers2, A. Harris4, J. Howard5, S. H. Kollins3, P. R. Krishnappa Babu1, E. M. Perrin6, S. Perochon1, M. 446.007 Desensitizing Hospitalized Children with Autism to Spanos2, G. Dawson2 and G. Sapiro1, (1)Department of Electrical and 1 2 a Wearable Biosensor Device B. J. Taylor , C. Peura , D. C. Computer Engineering, Duke University, Durham, NC, (2)Department 3 4 5 3 Cumpanasoiu , K. A. Pedersen , C. A. Mazefsky , M. S. Goodwin and of Psychiatry and Behavioral Sciences, Duke Center for Autism and 6 M. Siegel , (1)Center for Psychiatric Research, Maine Medical Center Brain Development, Durham, NC, (3)Department of Psychiatry and Research Institute, Portland, ME, (2)Spring Harbor Hospital, Westbrook, Behavioral Sciences, Duke ADHD Program, Duke University Medical ME, (3)Northeastern University, Boston, MA, (4)Center for Psychiatric Center, Durham, NC, (4)Boston University, Durham, NC, (5)Duke Center Research, Maine Medical Center, Portland, ME, (5)Department of for Autism and Brain Development, Durham, NC, (6)Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, Pediatrics, Duke University School of Medicine, Durham, NC (6)Maine Medical Center - Tufts School of Medicine, Westbrook, ME 446.014 Predicting the ADOS-2 Calibrated Severity Score from Video 446.008 Differences in Outcomes between in-Person and Distance and Audio Analysis L. Soorya1, A. Sarkany2,3, K. Kamal2, E. F. Dillon4, 1 Coaching in Classroom Pivotal Response Teaching K. Oliver , A. Z. Tősér5, A. Wainer1, E. V. Ocampo1 and S. Licona6, (1)Department 2 3 3 3 4 Nahmias , C. Alvarado-Martinez , K. Chavez , I. Le and A. C. Stahmer , of Psychiatry, Rush University Medical Center, Chicago, IL, (2)Argus (1)Psychiatry and Behavioral Sciences, University of California at Davis Cognitive, Inc., Budapest, Hungary, (3)Eotvos Lorand University, MIND Institute, Sacramento, CA, (2)Stony Brook University School of Budapest, Hungary, (4)Center for Autism and Related Disorders, Medicine, Stony Brook, NY, (3)University of California, Davis MIND Kennedy Krieger Institute, Baltimore, MD, (5)Argus Cognitive, Inc., Institute, Sacramento, CA, (4)UC Davis MIND Institute, University of Lebanon, NH, (6)Rush University Medical Center, Chicago, IL California, Davis, Sacramento, CA 446.015 Quantifying Social Approach in Preschoolers with ASD in 446.009 Effectiveness of Applying Virtual Reality in Job Interview Inclusion Classrooms C. Banarjee1, Y. Tao2, R. M. Fasano3, L. Vitale3, 1 Training for Young Adults with Autism Spectrum Disorder Y. L. Chien , C. Song1, M. L. Shyu4, L. K. Perry3 and D. S. Messinger1, (1)University 2 3 Y. L. Tseng and T. R. Huang , (1)National Taiwan University, Taipai, of Miami, Coral Gables, FL, (2)University of Miami, Miami, FL, (3) Taiwan, (2)Department of Electrical Engineering, Fu Jen Catholic Psychology, University of Miami, Coral Gables, FL, (4)Electrical and University, New Taipei City, Taiwan, (3)Department of Psychology, Computer Engineering, University of Miami, Coral Gables, FL National Taiwan University, Taipei city, Taiwan 446.016 Quantitative Evaluation of Imitation Performance for ASD 446.010 Evaluating Autism Likelihood in the First Year of Life: A Subjects Using Social Robot Zeno N. Taghavi1, J. M. Berdichevsky1, G. 1 2 3 Telehealth-Based Approach M. R. Talbott , S. Dufek , G. S. Young M. Kuravackel2, R. Pennington3, K. Welch1, G. Barnes2 and D. Popa1, 4 and S. J. Rogers , (1)Psychiatry and Behavioral Sciences, University (1)Louisville Automation & Robotics Research Institute, University of of California at Davis MIND Institute, Sacramento, CA, (2)Psychiatry, Louisville, Louisville, KY, (2)University of Louisville School of Medicine, University of California, Davis, Sacramento, CA, (3)University of Louisville, KY, (3)University of North Carolina, Charlotte, NC California at Davis, MIND Institute, Sacramento, CA, (4)Psychiatry and Behavioral Sciences, University of California MIND Institute, Sacramento, CA

446.011 Feasibility of a Low-Cost Motion Capture and Virtual Reality- Based Motor Intervention for Improving Gross Motor Skills in Youth with Autism Spectrum Disorder A. Ardalan1, H. Farhat2, R. Lenroot3 and D. R. Hocking4, (1)Zuckerman Institute, Columbia University, New York, NY, (2)PlayingForward, New York, NY, (3)University of New Mexico, Albuquerque, NM, (4)Psychology & Counselling, Developmental Neuromotor & Cognition Lab, La Trobe University, Melbourne, AUSTRALIA

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446.017 Remote Assessment of ASD in Clinical Trials: Automated 446.025 Using Virtual Reality to Investigate the Effect of Autistic and Analysis of Natural Conversation J. O’Sullivan1, D. Nobbs1, D. Slater1, ADHD Traits on Visual Processing and Executive Function Patterns S. T. Kilchenmann1, W. Y. Cheng2, L. Murtagh3, C. H. Chatham4, F. Savickaite1, E. Gaillard1, N. McDonnell2 and D. R. Simmons1, (1)School Lipsmeier1, J. F. Hipp5 and M. Lindemann1, (1)Roche Pharma Research of Psychology, University of Glasgow, Glasgow, United Kingdom, (2) and Early Development. Roche Innovation Center Basel, Hoffmann-La School of Philosophy, University of Glasgow, Glasgow, United Kingdom Roche, Basel, Switzerland, (2)Pharma Research & Early Development Informatics, Roche Innovation Center New York, Basel, Switzerland, (3)Neuroscience and Rare Diseases (NRD), Roche Pharma Research Poster Session and Early Development, Roche Innovation Center, Basel, Switzerland, (4)Neuroscience and Rare Diseases (NRD), Roche Pharma Research Poster 447 - Technology Demonstration / Devices and Early Development, Roche Innovation Center, New York, CA, (5) Neuroscience and Rare Diseases (NRD), Pharma Research & Early 447.002 Innervoice: Smart Communication for Autism L. J. Brady, Development, Roche Innovation Center Basel, F. Hoffmann-La Roche iTherapy, LLC, Martinez, CA AG, Basel, Switzerland 447.003 Interactive Elearning Modules to Support Paraprofessionals 446.018 Role of Implementation Climate and Training in Predicting in Using Evidence-Based Practices with Students with Autism A. Sam1, Telehealth Implementation of Applied Behavior Analysis Services during J. R. Steinbrenner2, S. L. Odom3 and V. Waters4, (1)Frank Porter the COVID-19 Pandemic A. Pomales1, D. Straiton2 and B. R. Ingersoll2, Graham Child Development Institute, Carrboro, NC, (2)Frank Porter (1)Michigan State University, East Lansing, MI, (2)Psychology, Michigan Graham Child Development Institute, University of North Carolina at State University, East Lansing, MI Chapel Hill, Chapel Hill, NC, (3)Frank Porter Graham Child Development Institute, University of North Carolina at Chapel Hill, San Diego, CA, (4) 446.019 Scalable Computation of Facial Movement Complexity Frank Porter Graham Child Development Institute, University of North in Young Children with Autism Spectrum Disorder P. R. Krishnappa Carolina at Chapel Hill, Carrboro, NC Babu1, J. M. Di Martino1, R. E. Aiello2, K. L. Carpenter2, Z. Chang1, S. Compton2, N. O. Davis3, S. Espinosa1, J. Flowers2, A. Harris4, J. 447.004 Making Data Collection on Autism Programs Easier Howard5, S. H. Kollins3, S. Perochon1, E. M. Perrin6, M. Spanos2, G. and More Motivating: Development of a Novel Data Collection App Dawson2 and G. Sapiro1, (1)Department of Electrical and Computer Incorporating User-Centered Design and Behavioral Economics Insights Engineering, Duke University, Durham, NC, (2)Department of H. J. Nuske, J. Buck, B. Ramesh, E. Becker-Haimes, K. Zentgraf and D. Psychiatry and Behavioral Sciences, Duke Center for Autism and S. Mandell, Penn Center for Mental Health, University of Pennsylvania, Brain Development, Durham, NC, (3)Department of Psychiatry and Philadelphia, PA Behavioral Sciences, Duke ADHD Program, Duke University Medical Center, Durham, NC, (4)Boston University, Durham, NC, (5)Duke Center 447.005 Mobile and VR Technology to Find and Support Individual 1 2 2 1 for Autism and Brain Development, Durham, NC, (6)Department of Needs V. K. Korhonen , S. Merilampi , K. Toivonen and M. Virnes , (1) Pediatrics, Duke University School of Medicine, Durham, NC Autism Foundation Finland, Helsinki, Finland, (2)Satakunta University of Applied Sciences, Pori, Finland 446.020 Searches for Web Tools to Screen for Autism Produce Few Results B. W. Sanders1,2, S. Bedrick1, S. broder-Fingert3, J. K. 447.006 Socialmind- a Digital Trainer for Parents of Children 1,2 3 Dolata4, E. Fombonne5, P. Fuchu6, J. Reeder7, L. Rivas Vazquez8 and with Autism K. Sagiv and G. Levy , (1)KerenOr, Carcur, Israel, (2) K. Zuckerman9, (1)Department of Medical Informatics and Clinical SocialMind Ltd., carcur, Israel, (3)tzafririm 9, SocialMind Ltd., carcur, Epidemiology, Oregon Health & Science University, Portland, OR, (2) Israel Pediatrics, Oregon Health & Science University, Portland, OR, (3) Pediatrics, Boston University School of Medicine, Boston, MA, (4) Department of Pediatrics, Oregon Health & Science University, Portland, OR, (5)Department of Psychiatry, Oregon Health & Science University, Portland, OR, (6)Boston University School of Medicine, Boston, MA, (7)Oregon WIC Program, Oregon Health Authority, Salem, OR, (8) Department of Pediatrics (Division of General Pediatrics), Oregon Health & Science University, Portland, OR, (9)Division of General Pediatrics, Oregon Health & Science University, Portland, OR

446.022 Study of Predictive Abilities of ASD Subjects with AI Based Assistive Methods S. Gulati1, C. Majumdar2 and T. K. Gandhi3, (1)Centre of Excellence and Advanced Research for Childhood Neurodevelopmental Disorders, Child Neurology Division, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India, (2) Department. of Electrical Engineering, IIT Delhi, New Delhi, India, (3) Electrical Engineering, Indian Institute of Technology Delhi, New Delhi, India

446.023 Supporting Transition Planning to Prepare Individuals with Autism Find Opportunities for Employment: Technological Design Challenges and Recommendations J. G. Kim1, G. Abowd1 and C. E. Lee2, (1)Georgia Institute of Technology, Atlanta, GA, (2)Vanderbilt University Medical Center, Nashville, TN

145 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Agerbo, E. Aarhus University,Centre for Integrated 325.004 A Register-Based Research, CIRRAU, Aarhus Aarons, G. UC San Diego Dissemination and 437.008 University,The Lundbeck Foundation Initiative Implementation Science Center,Child for Integrative Psychiatric Research, iPSYCH and Adolescent Services Research Aghaeepour, N. Stanford University 424.003 Center,University of California, San Diego Aguayo, P. University of Utah 429.024 Abas, H. University of Minnesota 425.032 Agyapong, M. [email protected] 415.025 Abbass, Z. University of Missouri- Kansas City 416.001 King’s College London Abbo, C. Makerere University 207.004 425.046 Ahituv, N. USCF 234.002 Ahlers, K. University of Washington 426.044 439.006 Abdul-Chani, M. The University of Alabama at Birmingham 414.033 422.029 422.034 Ahmad, A. All India Institute of Medical Sciences, New 411.002 Abdulla, S. Qatar Biomedical Research Institute (QBRI), 431.002 Delhi HBKU, Qatar Foundation Ahmad, J. Institute of Psychiatry, Psychology and 217.002 Abdullahi, I. H. La Trobe University,Cooperative Research 429.043 Neuroscience, King’s College London Centre for Living with Autism (Autism CRC) Ahmed, K. Baylor College of Medicine 422.069 Abowd, G. D. Georgia Institute of Technology 446.023 Ahmed, Z. [email protected] 401.102 Abrahamson, V. University of Kent 442.021 Nottingham Trent University Abrams, D. Washington University in St. Louis 312.002 Ahn, Y. A. University of Miami 414.007 418.005 Abubakare, O. Boston Medical Center 314.004 Abukaf, H. Ben-Gurion University of the Negev,National 430.004 Aiello, R. E. Duke Center for Autism and Brain Development 312.001 406.003 Autism Research Center 406.012 409.003 418.002 443.003 Acar, F. N. University of Sussex 401.057 446.002 446.013 Acharya, K. University of Illinois at Chicago 317.004 446.019 Achsel, T. University of Lausanne 403.016 Ainsworth, K. McGill University 418.019 Acosta, A. The Medical Investigation of 441.016 Aishworiya, R. [email protected] 422.046 Neurodevelopmental Disorders (MIND) Institute, National University Health System UC Davis School of Medicine, University of Aitken, D. Salvesen Mindroom Centre 417.018 California Davis Akemi, J. Santa Casa de São Paulo School of Medical 429.037 Adachi, J. Hokkaido University 413.064 Sciences Adachi, M. Hirosaki University 414.035 414.102 Akinyemi, J. University of Ibadan 422.026 419.003 Aksman, L. USC 434.006 Adams, A. University of Miami 413.060 AL Mamari, W. Sultan Qaboos University Hospital 408.001 Adams, H. University of Kansas Medical Center 414.010 Al-Harahsheh, S. World Innovation Summit for Health 422.022 Adams, J. Arizona State University 212.004 212.005 Alaerts, K. KU Leuven,Leuven Autism Research 303.002 406.024 Consortium (LAuRes) 435.006 Adams, J. [email protected] 413.019 Albarran, C. Servier 410.007 Oregon Health & Science University Albright, C. Nationwide Children’s Hospital 210.002 439.016 Adams, R. Cincinnati Children’s Hospital Medical Center 231.003 401.083

Albright, J. Virginia Polytechnic Institute and State 426.035 426.036 Adamson, L. B. Georgia State University 414.074 415.004 University,Virginia Tech Autism Clinic & Center 415.010 415.026 for Autism Research

Adan, M. Hamad General Hospital 406.007 Alcorn, A. M. [email protected] 417.018 University of Edinburgh Adeniyi, Y. University of Ibadan 422.026 Aldrich, J. University of Rochester Medical Center 413.014 Adeyemi, A. [email protected] 414.048 Federal Neuropsychiatric Hospital Alejo, S. University of California - Irvine 427.020 Adikari, A. La Trobe University 401.103 Alencar, M. Federal University of Paraná 442.006 442.047 Adler, E. J. Marquette University 414.095 418.009 Alessandri, M. University of Miami 414.007 418.005 419.028 Adolphs, R. Caltech 434.010 443.051 Alexander, A. A. [email protected] 419.001 Centers for Disease Control and Prevention Afsharnejad, B. Telethon Kids Institute 414.045 427.003 Alexander, A. University of Wisconsin - Madison 434.012 434.018 Agbaria, H. University of Haifa 401.105 434.023 441.029 441.055 Agelink van Rentergem, J. University of Amsterdam 401.021 401.046 Alexander, C. University of California, Davis 417.029 401.094 414.051 Alexander, D. Penn State College of Medicine 401.036 Alexander, L. Child Mind Institute 231.002

146 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Alexander, S. Queensland Centre for Mental Health 403.003 Anbar, J. [email protected] 442.045 Research,The University of Queensland Southwest Autism Research & Resource Center (SARRC),Mel and Enid Zuckerman Algur, Y. Drexel University 414.074 College of Public Health, University of Arizona Alhothi, A. Hamad General Hospital 406.007 Anderson, C. [email protected] 417.031 Ali, A. Queensland Brain Institute, The University of 403.003 Towson University Queensland Anderson, K. A. [email protected] 401.085 Ali, D. King’s College London 401.106 Drexel University A.J. Drexel Autism Institute Ali, H. Wake Forest Institute for Regenerative 423.006 Andonovic, I. University of Strathclyde 415.011 441.004 Medicine Aljazi, M. Michigan State University 316.002 Andrade, B. Centre for Addiction and Mental Health 418.013 418.022 Alkan, M. M. Durham University 322.004 Andreassen, O. University of Oslo 426.009 Allard, A. Council for Disabled Children 442.021 Andrews, D. S. The Medical Investigation of 208.003 434.006 Allemang-Grand, R. The Hospital for Sick Children 403.011 Neurodevelopmental Disorders (MIND) Institute, 434.021 Allen, A. College of William and Mary 443.034 UC Davis School of Medicine, University of California Davis Allison, C. University of Cambridge 232.001 301.002 314.001 443.026 Andrews, H. La Trobe University 401.082 Andrianopoulos, M. V. [email protected] 413.004 413.065 Allman, B. Western University 440.004 University of Massachusetts Almasy, L. Children’s Hospital of Philadelphia,University of 401.054 430.003 Andrzejewski, T. M. Virginia Polytechnic Institute and State 305.001 413.051 Pennsylvania University 414.038 429.025 Almeida Osório, J. M. Lausanne University Hospital 441.045 Angara, K. College of Human Medicine, Michigan State 403.010 Als, T. Center for Genomics and Personalized 325.001 University Medicine, CGPM, and Center for Integrative Anns, S. [email protected] 401.057 417.032 Sequencing, iSEQ,The Lundbeck Foundation University of Sussex Initiative for Integrative Psychiatric Research, Anshu, K. NIMHANS 403.002 iPSYCH,Aarhus University Ansuini, C. Istituto Italiano di Tecnologia 411.017 412.010 Altgassen, A. Johannes Gutenberg-Universität Mainz 401.094

Altman, A. UCL 434.006 Antezana, L. Virginia Polytechnic Institute and State 426.035 Altschuler, M. R. [email protected] 429.040 University University of Minnesota Anthony, B. J. [email protected] 422.019 Alvarado-Martinez, C. University of California, Davis MIND Institute 446.008 University of Colorado, Denver Alvares, G. [email protected] 227.001 423.010 Anthony, L. G. University of Colorado, Denver 422.019 422.021 University of Western Australia Anticevic, A. Yale University School of Medicine 429.012 444.005 Alvari, G. University of Trento 446.003

Alviar Guzman, C. University of California Merced 413.025 Antoniuk, S. Federal University of Paraná 442.006 442.047 Amaral, D. G. The Medical Investigation of 302.004 310.001 Neurodevelopmental Disorders (MIND) Institute, 313.003 406.008 Antoun, S. Institut Pasteur 217.004 UC Davis School of Medicine, University of 414.101 434.006 Anzulewicz, A. University of Warsaw 441.004 California Davis 434.021 441.016 Aoki, S. Zikei Hospital/Zikei Institute of Psychiatry 231.002 Ambrosino, S. University Medical Center 215.003 432.001 Aoki, Y. Showa University 231.002 Aparecida da Silva, M. Federal University of São João del-Rei 425.012 Ameis, S. H. Centre for Addiction and Mental Health 434.014 Aparna, S. College of Dairy Science and Technology 423.003 Ames, J. Kaiser Permanente 429.032 Kerala Veterinary and Animal Science Ames, M. University of Victoria 417.027 University, Amigo, C. [email protected] 420.002 422.025 Aquino, G. The University of Texas at Austin 442.038 Clinica de psiquiatria pediátrica Facultad de 425.009 Arango, C. Hospital General Universitario Gregorio 217.004 medicina, UDELAR Marañón Ammons, C. Children’s Healthcare of Atlanta 434.013 Arazi, A. Ben Gurion University 419.021 An, J. Korea University 233.003 Arbour-Nicitopoulos, K. University of Toronto 441.049 Anagnostou, E. Holland Bloorview Kids Rehabilitation Hospital 217.004 226.003 Arbuckle, S. [email protected] 304.003 231.002 310.001 University of Oregon 319.003 413.027 418.013 418.022 Arcadio Arce, M. San Diego State University 415.040 434.015 429.005 434.014 441.020 441.041 Archibald, A. UC Irvine 427.020 441.044 Ardalan, A. Columbia University 441.053 446.001 446.011

147 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Arias, A. University of California, 306.001 406.023 aziz-Zadeh, L. University of Southern California 402.001 441.031 414.095 Armony, Y. Tel Aviv University 401.086 Aznarez, I. Stoke Therapeutics 234.003 Armour, A. C. Children’s National Hospital 414.014 422.019 Azzaretto, M. Villa Santa Maria Foundation 441.032

Armstrong, M. Washington University of St. Louis 422.031 B Armstrong, S. La Salle University 422.060 Bacherini, A. [email protected] 415.023 Armstrong, V. L. IWK Health Centre 415.005 University of Perugia Arnold, S. Cooperative Research Centre for Living with 309.004 401.028 Bachevalier, J. Emory University 403.005 Autism (Autism CRC),UNSW 401.064 414.083 Baconawa, M. UC Irvine 427.020 Badal, S. AFMC 327.003 Arnold, Z. [email protected] 441.007 441.052 The University of Alabama at Birmingham Badgett, N. University of Virginia 442.016 Arora, R. Sangath 425.001 425.016 Baez, A. University of Miami 419.028 Bagdasarov, A. [email protected] 440.005 Arslantas, D. Eskisehir Osmangazi University Medical School 441.012 Yale University School of Medicine Arthur, R. Kings College London 415.009 Bagni, C. University of Lausanne,University of Rome Tor 403.016 441.025 Vergata Arunachalam, S. New York University 413.016 Bahmei, B. Simon Fraser University 441.030 Arutiunian, V. HSE University 413.029 Bahri, N. UCLA 422.039 Aryee, E. Mass General Hospital 442.017 Bai, X. University of Chinese Academy of 414.056 Arzanpour, S. Simon Fraser University 441.030 Sciences,Institute of Psychology, Chinese 414.073 Ashburner, J. K. Autism Queensland, The University of 426.021 Academy of Sciences Queensland Bai, Y. The university of Manchester 443.012 Ashby, D. Children’s Hospital Los Angeles 422.008 Bailey, J. University of Miami 224.001 Assadi, A. University of Wisconsin-Madison 441.053 Bailey, R. Purdue University 419.009 Astle, D. MRC Cognition & Brain Sciences Unit, 439.009 439.012 Bailey Bisson, J. Clemson University 425.033 University of Cambridge Baird, G. Guy’s and St Thomas’ NHS Foundation Trust 401.049 429.030 Astrovskaya, I. Simons Foundation 430.001 Atsumi, T. Kyorin University,Research Institute of 412.002 Bak, M. University of Minnesota 425.032 National Rehabilitation Center for Persons with Bakare, M. O. Federal Neuro-Psychiatric Hospital, Upper 414.048 419.007 Disabilities Chime, New Haven, Enugu, Enugu State, Attar, S. M. University of Washington 414.040 414.053 Nigeria 442.032 Bakeman, R. Georgia State University 415.026 Atzei, R. NPM Bambini in Movimento SCS 414.071 Baker, E. University of California Riverside 402.003 427.029 Atzva Poria, N. Ben Gurion University 419.021 427.033 Au-Yeung, S. University of Nottingham,University of Oxford 232.001 Baker, J. K. California State University, Fullerton 422.045 435.011 Augustyn, M. Boston Medical Center 314.004 Baker, K. MRC Cognition & Brain Sciences Unit, 439.009 439.012 Auriel, V. University of California, Los Angeles 443.032 University of Cambridge Ausderau, K. K. University of Wisconsin - Madison 441.029 441.055 Baker Worthman, L. Department of Health and Community Services 214.002 304.003 442.031 Austin, A. Purdue University 422.001 Baker-Ericzen, M. [email protected] 213.001 Australian Autism Biobank Cooperative Research Centre for Living with 423.010 Rady Children’s Hospital San Diego Team, T. Autism (Autism CRC) Baker-Harvey, H. Boston University 414.044 414.099 Auyeung, B. University of Edinburgh 303.001 443.009 Bakian, A. V. [email protected] 321.003 406.021 Avellaneda, A. University of Miami 419.028 University of Utah Avey, D. Washington University in St Louis 223.001 Bakner, K. Utah State University 414.052 Avillach, P. DBMI - Harvard Medical School 437.005 Bakulski, K. M. University of Michigan 419.016 419.020 Avlund, S. H. Aarhus University Hospital, Psychiatry.,Aalborg 401.075 Bal, V. H. [email protected] 231.004 401.011 University Hospital Rutgers University-New Brunswick 412.007 413.048 Ayaya, S. The University of Tokyo 401.089 Ayoka, G. Alexis Miranda Foundation 446.005 Balabanovska, M. University of Manchester 414.027 Ayub, M. Queen’s University 413.027 429.005 Balan, A. University of Sao Paulo 407.001 434.014 Balasco, L. University of Trento 208.002 Azam, S. Aga Khan University 419.008 Balatti, V. Villa Santa Maria Foundation 441.032 Azar, Z. Sangath 425.005 425.024 Balboni, G. University of Perugia 415.023

148 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Balcazar, F. University of Illinois at Chicago 425.020 425.042 Barry, T. [email protected] 417.012 422.064 Washington State University Baldimtsi, E. Aristotle University of Thessaloniki 413.037 Bartels, M. Vrije Universiteit 401.061 Baldwin, K. [email protected] 413.021 Bartley, K. Center for Autism Research, Children’s Hospital 207.002 443.008 University of Delaware of Philadelphia Ballester-Navarro, P. Hospital General Universitario de Aucante 429.036 Bartolotti, J. [email protected] 303.003 319.002 Bamford, J. Newcastle University 429.017 406.024 University of Kansas 441.021 441.040 Bamps, A. UZ Leuven Bartolotti, L. Boston Medical Center 314.004 Ban, L. South China Normal University 406.019 415.006 Barton, A. Northwest Missouri State University 427.013 Banarjee, C. University of Miami 322.003 414.041 Barton, M. University of Connecticut 415.010 415.038 443.035 446.015 441.001 Baruffini, S. University of Milano-Bicocca, School of 401.052 Banaschewski, T. Central Institute of Mental Health, University of 215.003 215.004 Medicine and Surgery Heidelberg 307.001 434.022 Barzilay, R. University of Pennsylvania,Children’s Hospital 401.054 441.006 of Philadelphia Bandini, L. [email protected] 311.002 414.055 Basadonne, I. [email protected] 414.071 University of Massachusetts Medical School 419.026 419.029 University of Trento 437.010 Bangert, K. University of South Carolina 439.004 Bascom, J. Autistic Self Advocacy Network 422.021 Bar Yehuda, S. Bar - Ilan University 443.036 443.054 Bast, N. [email protected] 322.001 441.006 University Hospital Frankfurt Baranek, G. T. [email protected] 321.004 414.084 Batalle, D. King’s College London 217.002 University of Southern California 415.003 418.002 Bateman, L. The Center for Autism Research/CHOP 320.004 441.010 442.031 Battaglia, F. IRCCS Istituto Giannina Gaslini, Ospedale 411.017 412.010 Baranger, A. Autism Europe 314.001 442.008 Pediatrico,Istituto Italiano di Tecnologia Batterham, P. The Australian National University 401.029 Barbaro, J. [email protected] 210.001 415.012 Battino, R. Rose F. Kennedy Center, Children’s Evaluation 427.022 La Trobe University and Rehabilitation Center; Montefiore Medical Barbeau, E. B. Cognitive Neuroscience Unit, Montreal 412.004 Center Neurological Institute, McGill University Baudouin, S. STALICLA SA 303.004 Barendse, M. Max Planck Institute for Psycholinguistics 441.022 Bauer, K. Lehigh University 414.008 Barger, B. Georgia State University 324.001 419.001 Bauman, M. UC Davis MIND Institute 403.014 422.061 437.011 Baumann, H. F. Hoffmann-La Roche Ltd 321.002 Barker, D. The Warren Alpert Medical School of Brown 327.002 Bauminger-Zviely, N. [email protected] 443.036 443.054 University Bar Ilan University Barkley, S. Icahn School of Medicine at Mount Sinai 435.013 439.014 Bavelier, D. University of Geneva 444.002 443.021 Baxter, L. [email protected] 412.005 412.012 Barnes, G. [email protected] 404.006 443.029 Barrow Neurological Institute University of Louisville School of Medicine 446.016 Bazelmans, T. King’s College London, Institute of Psychiatry, 415.009 441.025 Barnett, M. Norton School of Family and Consumer 442.045 Psychology and Neuroscience Sciences, University of Arizona Bazinas, C. International Hellenic University 446.024 Barns, S. Simons Foundation 408.004 430.001 Beard, M. The Ohio State University 422.040 Barokova, M. D. Boston University 413.026 414.044 Bearden, C. Semel Institute for Neuroscience and Human 434.027 Behavior and Department of Psychology, Baron-Cohen, S. University of Cambridge 215.003 215.004 University of California-Los Angeles 232.001 232.002 Bearss, K. University of Washington 214.004 426.044 301.002 303.001 307.001 314.001 315.003 411.019 Beasant, L. University of Bristol 409.001 422.012 434.017 434.022 443.026 445.001 Beattie, E. La Trobe University 210.001 Beaudoin, E. University of Vermont 401.053 Barón-Mendoza, I. C. Instituto de Investigaciones Biomédicas, UNAM 403.007 Beaumont, A. University of Miami 414.007 418.005 Barrington, A. W. Marquette University 306.001 419.028 Barrios, N. [email protected] 422.025 425.026 Becchio, C. Istituto Italiano di Tecnologia 411.017 412.010 Fleni 425.028 425.029 Becker, L. NIH 414.028 425.044 Becker, M. Stanford University 424.003 Barry, L. University of Limerick 323.002 Becker-Haimes, E. University of Pennsylvania 447.004

149 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Beckerson, M. E. Center for Innovative Research in 434.013 Berdichevsky, J. Louisville Automation & Robotics Research 446.016 Autism,University of Alabama Institute, University of Louisville Beckmann, C. Centre for Functional MRI of the Brain (FMRIB), 215.003 215.004 Berent, A. GeneTx Biotherapeutics,Foundation for 234.004 University of Oxford 307.001 434.001 Angelman Syndrome Therapeutics 434.004 434.022 Beresford, B. University of York 427.012 434.025 Bedford, R. Kings College London 313.001 313.002 Bergamo, N. Michigan State University 414.024 Berger, N. I. Michigan State University 414.028 Bednarz, H. University of Alabama at Birmingham 401.073 Bergmann, S. Purdue University 435.007 Bedrick, S. Oregon Health & Science University 413.019 413.028 Berich-Anastasio, E. Johns Hopkins Bloomberg School of Public 401.059 446.020 Health,Sheppard Pratt Beecher, C. The University of the West Indies, Mona 419.025 Campus Berman, A. Vanderbilt University Medical Center - 210.004 308.002 Treatment and Research Institute for Autism Begeer, S. [email protected] 312.004 401.061 Spectrum Disorder Vrije Universiteit 441.054 Bermperidis, T. [email protected] 414.059 443.022 Begum Ali, J. Centre for Brain and Cognitive Development, 308.003 406.017 Rutgers University Birkbeck, University of London 415.024 Bernardi, K. Holland Bloorview Kids Rehab 426.003 Begum-Ali, J. Centre for Brain and Cognitive Development, 406.009 Birkbeck College Bernardin, C. J. University of Missouri - Columbia 443.030 Bejarano, Á. University of Salamanca 436.003 Bernier, R. University of Washington 202.001 435.014 322.002 435.015 Bell, D. University of Missouri 443.030 406.014 439.003 Bellesheim, K. [email protected] 427.013 427.020 408.003 439.010 University of Michigan 429.018 443.025 435.009 Bello-Mojeed, M. [email protected] 414.048 419.007 Berry, D. University of Minnesota, Twin Cities 308.004 Federal Neuropsychiatric Hospital 422.026 Berry, L. N. Baylor College of Medicine,Texas Children’s 422.069 442.044 Belmonte, M. K. [email protected] 401.102 Hospital Com DEALL Trust Berry, R. Marcus Autism Center 429.031 Belteki, Z. Utrecht University 413.006 Bertamini, G. [email protected] 415.017 426.004 Ben Hadid, L. University of Geneva, Faculty of Medicine 444.002 University of Trento 426.037 Ben Shalom, D. [email protected] 401.102 Bertollo, J. R. [email protected] 221.003 Ben-Gurion University Virginia Polytechnic Institute and State Ben-Ami, S. [email protected] 405.005 University,Virginia Tech Autism Clinic & Center Massachusetts Institute of for Autism Research Technology,Weizmann Institute of Science Bertone, A. McGill University 411.018 418.019 Ben-Ari, Y. Neurochlore 219.004 Ben-Itzchak, E. [email protected] 422.003 426.010 Bertrams, A. University of Bern 443.005 Ariel University Besio, V. Centro Hospitalario Pereyra Rossell 425.009 Benavidez, H. UC Irvine 427.020 Besney, R. University of Calgary 417.027 Bender, K. UCSF 234.002 Besse, E. Servier 410.007 Benes, J. Santa Clara University 414.015 Bethlehem, R. A. University of Cambridge 303.001 Benevides, T. W. [email protected] 429.014 442.039 Bevans, K. [email protected] 414.020 Augusta University Temple University Benke, K. Johns Hopkins Bloomberg School of Public 310.003 325.003 Beversdorf, D. Q. University of Missouri, Columbia 406.002 427.013 Health Bennett, A. Children’s Hospital of Philadelphia 422.041 Bey, A. L. Duke University 443.003 Bennett, T. (. McMaster University 313.001 313.002 Bezemer, M. INTER-PSY 429.010 422.023 429.027 Bhat, A. N. [email protected] 227.003 443.023 442.029 University of Delaware 443.024 444.004 Benninger, T. Nationwide Children’s Hospital 414.070 Benrey, N. Ferkauf Graduate School of Psychology, 414.057 Bhat, B. Sangath 425.015 Yeshiva University,Seaver Autism Center Bhatti, L. King’s College London 425.036 for Research and Treatment, Department of Psychiatry, Icahn School of Medicine at Mount Bhavnani, S. Sangath 425.001 425.016 Sinai Hospital Biasini, F. J. University of Alabama at Birmingham 414.033 Bent, C. A. La Trobe University,Cooperative Research 426.021 Centre for Living with Autism (Autism CRC) Bigler, E. D. Brigham Young University 434.012 434.018 Bentenuto, A. University of Trento 415.017 422.050 Bilaver, L. A. Northwestern University 317.004 426.004 426.037 Bilder, D. University of Utah 321.003 406.021 429.024

150 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Billeci, L. National Research Council 423.002 Boccuto, L. Greenwood Genetic Center 303.004 Binion, G. E. Marcus Autism Center 414.018 414.019 Bocek, K. Seattle Children’s Research Institute 442.020 Binoun-Chaki, H. Soroka Medical Center 426.046 Bockstal Fieulaine, B. Université Reims Champagne Ardenne 425.018 Bird, G. University of Oxford 444.001 Boddaert, N. Hospital Necker 443.033 Birkeneder, S. L. University of California, Davis 417.020 417.029 Boets, B. KU Leuven 406.024 418.004 435.006 444.003 Birmingham, E. Simon Fraser University 441.030 443.042 Boettcher, K. University of Virginia 414.039 Boggs, A. Cincinnati Children’s Hospital Medical Center 406.018 Birnschein, A. The University of Alabama 414.064 Bohr, Y. York University 422.010 Biro, B. Eotvos Lorand University 436.005 Boi, J. University of Cagliari and “G.Brotzu” Hospital 231.002 Birtwell, K. Massachusetts General Hospital 427.001 427.032 Trust Boilson, A. M. Dublin City University 419.002 427.025 Biscaldi, M. Department of Child and Adolescent Psychiatry, 411.014 University of Freiburg Boitnott, A. Icahn School of Medicine at Mount Sinai 302.003 431.001 Bishop, C. Brock University 401.077 Bojanek, E. University of Kansas 227.004 441.027 Bishop, L. University of Wisconsin - Madison 213.002 213.003 Bokadia, H. Rutgers University 414.059 401.043 Boland, S. C. Washington State University 417.012 Bishop, S. L. University of California San Francisco 226.004 231.002 231.003 309.003 Boles, R. [email protected] 304.001 427.014 401.083 404.003 University of Colorado Anschutz Medical 414.093 441.013 Campus Bolognani, F. Axial Therapeutics, Inc. 321.002 410.005 Blacher, J. University of California, Riverside 425.031 427.029 441.011 427.033 442.040 Bolourian, Y. University of California, Riverside 442.040 Bolte, S. E. Karolinska Institutet, & Stockholm Health Care 311.003 320.003 Black, C. [email protected] 414.094 435.008 Services, Region Stockholm 404.008 414.045 University of South Carolina 439.004 427.003 427.037 Black, L. University of Kansas 426.017 429.039 441.034 Black, M. H. [email protected] 401.041 414.045 Bomgardner, E. Rowan University 422.011 Curtin University 427.003 Bonneh, Y. S. [email protected] 412.008 Blackmore, C. E. Department of Forensic and 434.027 Bar-Ilan University Neurodevelopmental Sciences, and Bonnet-Brilhault, F. [email protected] 435.005 the Sackler Institute for Translational EXcellence Center in Autism and Neurodevelopment, Institute of Psychiatry, neurodevelopmental disorders,UMR 1253, Psychology and Neuroscience, King’s iBrain, Université de Tours, Inserm College London,Behavioural Genetics Clinic, Bonney, E. University of Minnesota 207.004 425.046 Adult Autism Service, Behavioural and Developmental Psychiatry Clinical Academic Boo, C. University of Connecticut 413.013 413.036 Group, South London and Maudsley Foun

Blagrave, J. California State University, Chico 401.108 Booij, J. Amsterdam University Medical Centers, location 307.003 Blajeski, S. University of Michigan 213.003 Academic Medical Center Blakeley-Smith, A. JFK Partners, University of Colorado Anschutz 304.001 427.014 Booke, L. In Tune Music and Wellness 422.043 Medical Campus Bookheimer, S. Y. University of California, Los Angeles 318.001 319.001 Blandino, C. CETRA 442.046 414.058 434.007 440.006 440.007 Blasko, A. Lehigh University 414.008 Bookman, M. Verily Life Sciences 310.001 Blazquez Hinojosa, A. Hospital Clinic 217.004 Boorom, O. Vanderbilt University Medical Center 413.025 Bletsch, A. Goethe-University Frankfurt am Main 215.003 432.001 Borg, A. KIND Karolinska Institutet Center of 427.037 434.017 434.027 Neurodevelopmental Disorders

Blijd-Hoogewys, E. M. [email protected] 414.026 429.010 Borglum, A. The Lundbeck Foundation Initiative 205.004 325.004 INTER-PSY for Integrative Psychiatric Research, iPSYCH,Center for Genomics and Personalized Bloch, C. [email protected] 229.001 418.010 Medicine, CGPM, and Center for Integrative University Hospital Cologne,LMU Hospital Sequencing, iSEQ,Aarhus University Munich Borowy, A. The Ohio State University 422.040 422.052 Blume, J. [email protected] 405.001 413.050 422.067 Texas Tech University 413.058 443.027 Bosco, P. IRCCS Stella Maris Foundation 402.001 Boadu, J. King’s College London, Institute of Psychiatry, 427.012 Bosio, M. STALICLA SL 303.004 Psychology and Neuroscience Botch, T. Dartmouth College 202.004 Boardman, J. University of Edinburgh 415.011 Botha, M. University of Stirling 235.001 401.055 Boateng, S. Stony Brook University 402.006 429.007 443.007

151 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Bottema-Beutel, K. [email protected] 216.001 216.002 Braverman, Y. Boston Children’s Hospital 411.013 435.004 Boston College 216.003 216.004 413.003 413.032 Bravo, A. University of Washington 442.024 Botteron, K. Washington University School of Medicine 307.002 308.004 Bray, S. University of Calgary 434.029 320.001 415.027 415.039 441.005 Breakefield, X. Massachusetts General Hospital 234.001 441.043 443.041 Breese, L. South London and Maudsley NHS Foundation 427.012 Botticello, A. Kessler Foundation 437.004 Trust Boucher, T. Q. Simon Fraser University 315.004 411.018 Breider, S. University Medical Center Groningen, University 427.019 413.047 441.030 of Groningen Brennan, S. Michigan State University 414.024 Bourgeron, T. Institut Pasteur 215.001 226.001 215.003 434.004 Brennan-Wydra, E. Child Study Center, Yale University School of 322.003 414.041 217.004 445.001 Medicine 443.035 Brentani, H. Clinical Hospital 426.029 Bourla, I. University of California, San Francisco 434.002 Bressler, J. The University of Texas Health Science Center 419.025 Bourourou, R. University of Monastir 401.010 at Houston Bowler, D. [email protected] 401.007 Brewe, A. The University of Alabama 211.004 City, University of London Brewer, R. Royal Holloway, University of London 401.047 442.002 Bowling, A. Merrimack College 414.055 419.026 444.001 419.029 Brian, J. A. Holland Bloorview Kids Rehabilitation Hospital 413.027 418.022 Bowman, D. Institute for Intelligent Systems,University of 224.002 415.005 426.003 Memphis 418.013 426.023 Bowman, K. L. University of North Carolina 401.042 401.066 441.049 Brice, S. Newcastle University 318.003 429.017 Boxberger, A. Child Study Center, Yale University School of 322.003 414.041 418.014 429.044 Medicine 443.035 427.002 442.042 427.010 Boxhoorn, S. Goethe University Frankfurt 322.001 Bricker, J. California State University Northridge 401.023 Boyd, B. [email protected] 201.002 437.015 Briend, F. UMR 1253, iBrain, Université de Tours, Inserm 406.027 University of Kansas Brier, J. Queens College 422.060 Bozzi, Y. University of Trento 208.002 Brignell, A. Australian Catholic University,Murdoch 413.063 Braconnier, M. St. John’s University 422.033 Children’s Research Institute and University of Braden, B. Arizona State University 401.006 401.033 Melbourne,Monash University 412.005 412.012 Brinkman, A. H. Washington State University 422.064 Bradley, C. University of North Carolina at Chapel Hill 401.045 Brinton, J. University of Colorado Denver School of 429.028 Bradley, L. Coventry University,University of Bedfordshire 232.001 Medicine Bradshaw, J. [email protected] 415.014 Brittenham, C. The Graduate Center, City University of New 415.020 University of South Carolina York Bradstreet, L. E. Pediatric Psychology and Neuropsychology 414.053 Britvan, B. Seaver Autism Center, Department of 414.093 435.013 Department, Nationwide Children’s Hospital Psychiatry, Icahn School of Medicine at Mount Brady, L. iTherapy, LLC 413.002 447.002 Sinai Hospital Brady, N. C. University of Kansas 414.016 426.017 Brkic, D. MRC Cognition & Brain Sciences Unit, 439.012 427.026 University of Cambridge Braem, S. Ghent University 412.015 broder-Fingert, S. Boston Medical Center 314.004 442.017 Braga, A. Federal University of Paraná 442.006 446.020 Broderick, N. Vanderbilt University Medical Center 210.004 308.002 Braga, V. Federal University of Paraná 442.006 442.047 426.008 Brodkin, E. S. University of Pennsylvania 401.054 430.003 Braga Filho, J. Federal University of Paraná 442.006 442.047

Bragg, J. Mount Sinai Medical Center 415.037 Brondino, N. University of Pavia 419.024 Brahim, T. UNIVERSITY OF MONASTIR 401.020 Bronstein, B. M. [email protected] 305.002 Brammer, M. Institute of Psychiatry, Psychology and 226.001 University of Pennsylvania Neuroscience, King’s College London Brook, M. Curtin University 429.029 Brand, H. Massachusetts General Hospital,Broad Institute 205.002 205.004 Brookman-Frazee, L. UC San Diego,Child and Adolescent Services 213.001 324.002 of MIT and Harvard Research Center,UC San Diego Dissemination 437.008 Branyan, H. F. Center for Autism and the Developing Brain 211.002 418.011 and Implementation Science Center Brown, C. University Hospital Southampton NHS 401.062 Brass, M. Humboldt-Universität zu Berlin,Ghent University 412.015 Foundation Trust. Braun, J. Brown University 419.006 Brown, H. M. University of Alberta 417.013 422.037 Bravaccio, C. Univ. “Federico II” 231.002 Brown, K. Oregon State University 411.003

152 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Brown, R. KUMC 442.014 Burnham Riosa, P. Brock University 401.077 Brownfield, V. University of Missouri 414.037 Burns-Yocum, T. Indiana University 443.051 Browngoehl, A. H. Drexel University 413.062 415.026 Burrier, R. Stemina Biomarker Discovery 406.008 443.048 Burrows, C. A. University of Minnesota 320.001 443.041 Brucato, M. Johns Hopkins Bloomberg School of Public 325.003 Health Burrows, E. University of Melbourne 411.005 Bruce, S. Columbia University 430.001 Burton, K. College of William and Mary 443.034 Bruce, S. PGSP-Stanford Psy.D. Consortium 427.018 Buruma, M. INTER-PSY 414.026 Brueggeman, L. University of Iowa 430.001 Bury, S. M. Olga Tennison Autism Research Centre, School 401.029 401.082 Brunori, E. IRCCS Fondazione Stella Maris 424.002 of Psychology and Public Health, La Trobe 429.004 University Brunt, S. University of Virginia 228.002 422.009 Bush, L. Rush University Medical Center 413.033 Brusilovskiy, E. Temple University 401.048 Bussu, G. Radboudumc 215.004 434.004 Bryson, S. Dalhousie University 415.005 426.003 Butera, C. University of Southern California 402.001 441.031 Bucan, M. University of Pennsylvania 401.054 430.003 Butler, C. University of Bath 401.096 Buck, J. University of Pennsylvania 447.004 Butler, L. [email protected] 413.031 Buckingham, A. University of Massachusetts Lowell 427.027 Boston University Buckley, C. The Royal College of General Practitioners UK 427.007 Butler, M. K. Child Study Center, Yale University School of 322.003 414.041 Medicine 443.035 Budavari, A. C. [email protected] 415.018 Johns Hopkins Bloomberg School of Public Butter, E. Nationwide Children’s Hospital 210.002 414.075 Health 439.016 Buxbaum, J. D. Icahn School of Medicine at Mount Sinai 205.004 302.003 Budenske, J. Rush University Medical Center 422.006 325.004 414.057 Bufo, M. UMR 1253, iBrain, Université de Tours, Inserm 435.005 414.093 431.001 Bugnariu, N. University of North Texas Health Science 441.036 435.013 439.014 Center 439.018 Bybjerg-Grauholm, J. Center for Neonatal Screening, Department 325.004 Buil, M. Vrije Universiteit 401.061 for Congenital Disorders, Statens Serum Buitelaar, J. K. Donders Institute for Brain, Cognition and 215.001 426.030 Institut,The Lundbeck Foundation Initiative for Behaviour, Radboud University Nijmegen 215.002 432.001 Integrative Psychiatric Research, iPSYCH, Medical Centre,Karakter Child and Adolescent 215.003 434.001 Byrge, L. University of North Florida 434.010 443.051 Psychiatry University Center 215.004 434.004 226.001 434.022 Byrne, K. University of California, Los Angeles 401.099 306.003 434.025 307.001 435.002 Bøglum, A. iPSYCH 325.001 320.002 441.017 413.006 442.008 C 414.063 446.012 Cachat, J. STALICLA SA 303.004 425.040 Cadondon, S. UC Irvine 427.020 Cage, E. A. University of Stirling 235.002 401.047 Bullen, J. University of California, Davis 411.004 414.011 422.037 422.072 443.046 442.002 Bullmore, E. Brain Mapping Unit, Department of Psychiatry, 434.017 Cagiano, R. IRCCS Stella Maris Foundation 415.023 University of Cambridge, UK Cahalan, S. Rutgers University 412.007 Bulotsky-Shearer, R. University of Miami 413.060 Cai, R. Autism Spectrum Australia 401.044 401.104 Burack, J. A. McGill University 411.010 418.018 414.005 418.025 Cakar, M. E. University of California, Los Angeles 434.007 Buranova, N. [email protected] 417.010 422.020 University of Missouri Calderon, N. Rush University Medical Center 413.033 Burchfield, C. University of Kansas 427.026 Calderoni, S. University of Pisa,IRCCS Fondazione Stella 402.001 Maris 423.002 Burdeus, M. Instituto de Investigación Sanitaria Gregorio 217.004 424.002 Marañón Callara, A. University of Pisa 423.002 Burghardt, P. Wayne State University 406.021 Calley, S. University of Bath 441.009 Burghof, L. University Hospital Cologne 418.010 Calnan, T. Duke Center for Autism and Brain Development 406.012 Burk, J. William & Mary 443.004 443.034 Calvarro-Castañeda, A. University of Salamanca 436.003 Burke, D. Galway Autism Partnership 429.007 Calvo Escalona, R. Hospital Clinic 217.004 Burkhardt-Reed, M. University of Memphis 224.002 Camarata, S. Vanderbilt University Medical Center 419.012 Burlinson, E. Children’s National Hospital 422.019 Campana, F. Institut Pasteur 434.004

153 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Campbell, J. M. Western Carolina University 417.026 Carper, R. SDSU/UC San Diego,San Diego State 415.040 434.015 University Campbell, M. Kansas Center for Autism Research 441.038 and Training (K-CART), University of Carravallah, L. Michigan State University 401.062 Kansas,University of Kansas Carretta, H. J. [email protected] 442.039 Campbell, M. University of Missouri Kansas City School of 210.003 Florida State University College of Medicine Medicine,Children’s Mercy Kansas City Carroll, H. University of Massachuetts Lowell 443.039 Campbell, S. Axial Therapeutics, Inc. 434.005 Carson, W. E. Duke University 406.001 Campi, E. University of Southern California 415.003 442.031 Carta, A. University of Sassari 231.002

Campos, G. University of Sao Paulo 407.001 Carter, A. S. University of Massachusetts Boston 228.002 414.094 415.008 Campos, R. Universidad Autónoma de Madrid 425.043 Carter, C. University of California Davis 403.014 Camus, L. Heriot-Watt University 443.009 Carter, C. Lancaster University 413.005 Canal-Bedia, R. University of Salamanca 427.025 429.013 Carter, J. Autism South Africa 446.005 429.036 436.003 Carter, K. College of William and Mary 443.034 Canales, C. P. University of California Davis 403.010 Carter Leno, V. King’s College London, Institute of Psychiatry, 414.004 415.001 Canevini, M. Università degli Studi-Milano 231.002 Psychology and Neuroscience 422.063 429.021 429.030 Canfield, A. [email protected] 413.014 Carvalho, M. Universidade Federal de Minas Gerais 415.007 415.031 SUNY Upstate Medical University Canu, D. Department of Child and Adolescent Psychiatry, 411.014 Carvallo, C. [email protected] 437.006 University of Freiburg ASSE Cao, X. Renyu School for Children with Special Needs 425.027 Cary, E. L. Syracuse University 435.010 441.048 Cao, Z. University of Rochester Medical Center 440.001 Cascio, C. J. Vanderbilt University Medical Center 324.004 Caplan, B. UC San Diego,Child and Adolescent Services 324.002 Caselli, R. Mayo Clinic Arizona 401.033 Research Center Casey, B. [email protected] 419.002 Cappe, E. Université de Paris 425.018 Dublin City University Carbone, P. University of Utah 314.002 Cash, S. Baylor College of Medicine,Texas Children’s 442.044 Cardon, G. J. Brigham Young University 405.003 441.042 Hospital Cassidy, S. A. University of Cambridge,University of 232.001 232.002 Cardona, S. University of Miami 414.007 418.005 Nottingham,Newcastle University 305.003 315.003 419.028 Castelbaum, L. Boston Children’s Hospital,Boston University 413.044 414.021 Cardoso, F. Centro Hospitalario Pereira Rossell 420.002 Castellanos, F. NYU Langone Health 226.004 Cardy, R. E. Holland Bloorview Kids Rehabilitation Hospital 418.013 418.022 Castellon, F. A. University of California, Los Angeles 305.002 417.038 Carey, C. Broad Institute of MIT and Harvard 205.003 205.004 Castelly, R. University of Louisville 443.029 309.003 441.013 Castro-Fornieles, J. CIBERSAM 217.004 Cargill, M. I. University of Virginia 443.047 Catmur, C. Kings College London 444.001 Carlock, K. Indiana University 427.021 Caudell, D. Vanderbilt University 422.037 Carlos, C. L. Yale University School of Medicine 406.016 435.003 435.012 444.005 Caudill, M. Cornell University 419.016 Carlson, D. Duke University 406.001 Cavalcanti Ferreira, A. Inserm U1000, institut Imagine, UNICAMP 443.033 Carlson, M. Marquette University 306.001 406.023 Cavallo, A. University of Turin,Istituto Italiano di Tecnologia 412.010 Cawthorne, T. King’s College London, Institute of Psychiatry, 427.012 Carlson, N. University of Western Ontario 413.056 Psychology and Neuroscience Carlsson, T. Center for Neurodevelopment Disorders at 404.008 Celestin, O. NIH/NIMH 422.065 Karolinska Institutet (KIND) Cermak, S. [email protected] 441.031 Carmona, J. University of Connecticut 413.036 University of Southern California Carnicer, M. Hospital General Universitario Gregorio 217.004 Cermak, S. University of Southern California 441.010 Marañón Cervantes, J. Baylor College of Medicine,Texas Children’s 422.069 Caron, V. Université du Québec à Montréal 401.088 425.007 Hospital 425.045 Cervin, M. Lund University 443.044 Carpenter, K. University of Kent 401.003 Cestrone, A. University of Vermont 401.053 Carpenter, K. Duke Center for Autism and Brain Development 202.002 207.003 312.001 406.003 Cetin, G. University of North Carolina at Chapel Hill 415.039 406.012 406.003 Cevasco, M. Seattle Children’s Hospital 427.030 418.002 443.003 446.002 446.013 Chabane, N. Lausanne University Hospital 441.045 443.033 446.019 Chai, X. McGill University, Montreal Neurological 412.004 Institute

154 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Chakrabarti, B. [email protected] 434.011 Chaxiong, P. University of Minnesota 422.002 University of Reading Cheak-Zamora, N. C. [email protected] 442.014 Chakrabarty, B. All India Institute of medical sciences, New 411.002 University of Missouri Delhi, India Chemotti, M. Child and Adolescent Services Research 415.019 Chamberlain, S. J. University of Connecticut Health Center Center,San Diego State University Chambers, N. University of Cape Town 446.005 Chen, A. University of Cincinnati College of Medicine 419.006 Champagne, N. Mira Foundation 427.034 Chen, B. Third Affiliated Hospital of SUN YAT-SEN 426.033 University Chan, A. The Hospital for Sick Children 310.001 Chen, B. San Diego State University 415.040 434.015 Chan, C. University of Melbourne 413.063

Chan, J. Massachusetts General Hospital 427.020 Chen, B. B. University of Maryland 417.025 417.037 Chan, N. [email protected] 422.045 Loma Linda University Chen, H. Foundation for Autistic Children and Adults in 426.018 426.045 Taiwan Chan (Ting), V. York University 426.028 Chen, H. Department of Medicine, MacKay Medical 426.034 Chandler, S. King’s College London, Institute of Psychiatry, 414.054 422.035 College,MacKay Children’s Hospital Psychology and Neuroscience 422.063 429.021 429.030 Chen, H. University of Bath 441.009 Chandran, V. A. University of Reading 434.011 Chen, J. Western University 434.028 Chandrasekhar, T. Duke University Medical Center 409.003 Chen, J. Affiliated Shenzhen Maternity & Child 436.001 Chang, C. Vanderbilt University 434.003 Healthcare Hospital Chang, T. University of California, Los Angeles 430.001 Chen, J. University of Southern California 309.001 Chang, Y. California State University, Los Angeles 426.001 426.018 Chen, L. Santa Clara University 412.017 414.012 426.032 426.045 414.015 Chen, L. College of Staten Island 425.021 Chang, Z. Department of Electrical and Computer 207.003 230.002 Chen, Q. University of Pittsburgh 211.003 Engineering, Duke University 312.001 406.003 446.002 446.013 Chen, Q. The Pennsylvania State University 414.069 446.019 Chen, R. School of Labor and Human Resources, 425.027 Charlton, R. A. [email protected] 218.002 401.008 Renmin University of China Goldsmiths University of London 401.039 401.093 Chen, W. Wucailu 413.042 401.097 Charman, T. Institute of Psychiatry, Psychology and 215.001 215.002 Chen, X. Roche Pharma Research and Early 321.002 Neuroscience, King’s College London 215.003 215.004 Development, Roche Innovation Center 217.004 226.001 Chen, X. South China Normal University 425.011 306.003 307.001 Chen, Y. Graduate Institute of Clinical Medicine, College 423.001 308.003 320.002 of Medicine, National Taiwan University 321.002 401.049 404.005 406.009 Chen, Y. The Pennsylvania State University 414.069 406.017 414.004 Chen, Y. [email protected] 323.003 417.028 414.029 414.054 New York University 443.037 415.001 415.009 Chen, Y. [email protected] 321.004 414.084 415.024 415.025 University of Southern California 422.035 422.063 425.040 427.012 Chen, Z. University of Southern California 309.001 427.025 429.021 Chenausky, K. V. [email protected] 413.031 429.026 429.030 Beth Israel Deaconess Medical Center Charvin, D. [email protected] 303.004 327.004 Cheng, W. Pharma Research & Early Development 446.017 STALICLA SA Informatics, Roche Innovation Center New York Chaterjee, I. Bar Ilan University 423.005 Cheon, J. Yonsei University 235.004 Chatham, C. H. [email protected] 215.001 215.003 Chetty, S. Stanford University 302.004 Roche Pharma Research and Early 217.004 230.001 Development, Roche Innovation Center 321.002 446.017 Cheung, C. [email protected] 413.022 413.057 The Hong Kong Polytechnic University Chaudhary, D. Sangath 425.015 Cheung, C. H. Birkbeck University of London 414.054 Chavarro, J. Harvard T.H. Chan School of Public Health 419.004 Chiang, C. [email protected] 317.001 426.026 Chavez, K. University of California, Davis MIND Institute 446.008 National Chengchi University Chawarska, K. Yale University School of Medicine 202.001 322.003 Chiang, L. M. UCLA Semel Institute for Neuroscience & 422.071 409.002 414.041 Human Behavior 435.009 435.014 Chiappe, J. C. California State University, Dominguez Hills 305.002 410.006 435.015 443.035 Chien, Y. National Taiwan University 401.032 446.009 Chawla, S. Children’s Healthcare of Atlanta and Emory 304.002 Chitty, D. J. IWK Health Centre 426.038 University School of Medicine

155 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Chiu, Y. National Taiwan University Hospital 426.018 426.045 Cleffi, C. University of Delaware 441.015 443.023 443.024 444.004 Chladek, M. Clinical Outcomes Solutions 439.008 Clegg, J. Texas State University 443.001 Chlebowski, C. UC San Diego,Child and Adolescent Services 324.002 Research Center Cleve, J. Ontario Ministry of Children and Youth Services 442.029 Cho, A. University of California, Los Angeles 313.003 401.035 Cleveland, S. Stanford University 319.004 Cliffe, R. H. [email protected] 426.007 Choi, A. [email protected] 412.014 413.044 Olga Tennison Research Centre Harvard Graduate School of Education,Boston 415.022 415.029 Children’s Hospital Cliquet, F. Institut Pasteur 215.001 215.003 445.001 Choi, Y. [email protected] 404.002 Clossick, L. R. University of Michigan 437.007 Dartmouth College Cloud, J. Nathan Klein Institute 226.004 Choinski, A. M. Federal University of Paraná 442.006 442.047 Cobb, S. University of Edinburgh 206.004 Chondrogianni, V. University of Edinburgh 411.011 Coco, C. Karolinska Institutet 414.045 427.037 Chong, S. National University Hospital 422.046 Coffman, M. Virginia Tech 422.033 427.044 Choueiri, R. C. University of Massachusetts Memorial 414.076 Children’s Medical Center Cogger-Ward, H. University of Nottingham 232.001 Chow, K. The Chinese University of Hong Kong 414.002 Cohen, S. R. University of California - San Diego 422.014 Chow, T. Kaiser Permanente Southern California 309.001 Cohen Eilig, M. Sunny Hill Health Centre at BC Children’s 417.034 Choy, T. C. University of California, Riverside 402.003 427.029 Hospital 427.033 Cohenour, T. L. University of California, Los Angeles 415.016 Christodulu, K. V. Center for Autism and Related Disabilities 427.005 Cola, M. Center for Autism Research, Children’s Hospital 320.004 425.041 Christopher, K. [email protected] 401.065 of Philadelphia 427.042 443.008 University of California, Los Angeles Christou, G. La Trobe University 415.012 Colcombe, S. Nathan Klein Institute 226.004 Chromik, N. King’s College London, Institute of Psychiatry, 446.012 Coleman, K. Kaiser Permanente Southern California 437.008 Psychology and Neuroscience Colic, M. University of Hawaii at Manoa 422.007 Chu, A. Boston University School of Public Health 437.013 Collignon, O. Université Catholique de Louvain 418.019 Chu, R. Growing Healthy Children Therapy Services, 414.058 Collins, R. L. Harvard Medical School,Broad Institute of MIT 205.002 205.004 Inc. and Harvard,Massachusetts General Hospital Chua, Y. [email protected] 415.011 Colombo-Dougovito, A. M. [email protected] 401.108 University of Strathclyde University of North Texas Chung, W. Columbia University 231.004 401.026 Colozzo, P. University of British Columbia 426.027 401.072 408.004 430.001 Colvert, E. Institute of Psychiatry, Psychology and 401.002 Ciaramella, A. Istituto Superiore di Sanità 427.025 Neuroscience, King’s College London Cichewicz, K. University of California Davis 403.010 Compton, S. Child/Family Mental Health and Developmental 312.001 406.003 Neuroscience, Duke University Medical Center 406.012 409.003 Ciesielski, J. University of Calgary 422.038 418.002 419.013 Cilluffo, A. Towson University 401.100 443.003 446.002 446.013 446.019 Cimmino, D. B. Brigham Young University 401.092 414.032

Condy, E. E. National Institute of Mental Health 414.028 Ciobanu, T. Roche Pharma Research and Early 410.005 Development, Roche Innovation Center Conlon, O. University of Alberta 437.014 Cirstea, C. University of Missouri 406.002 Conner, C. M. University of Pittsburgh School of Medicine 429.033 Claes, P. UZ Leuven,KU Leuven 418.004 Conner, C. University of Virginia 417.007 417.040 Clairmont, C. Massachusetts General Hospital 414.031 Connolly, E. University of California Davis 403.010 Clapham, H. University of Technology Sydney Autistic 422.058 Advisory Board Connor, S. F. Hoffmann-La Roche Ltd. 439.008 Clapperton, A. School of Population and Global Health, 401.029 429.004 Consortium, G. Seattle Children’s Research Institute 413.049 429.018 University of Melbourne Consortium, S. SPARKForAutism.org 401.026 401.072 Clark-Whitney, E. Center for Autism and the Developing Brain 317.002 413.017 408.004 430.001

Clarke, E. B. University of California, Los Angeles 401.069 422.074 Constantin, L. University of Queensland 302.001

Clarkson, T. Temple University 435.001 Constantino, J. [email protected] 320.001 415.036 Washington University School of Medicine Clausen, L. Aarhus University, Faculty of Health,Aarhus 401.075 Unirversity Hospital, Psychiatry Contreras, J. University of Texas at El Paso 413.045 Cook, J. Arizona State University 401.006

156 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Cook, J. School of Psychology, University of Birmingham 418.026 Craig, M. C. Department of Forensic and 434.017 434.027 Neurodevelopmental Sciences, and the Sackler Cook, K. M. Children’s National Hospital 434.009 Institute for Translational Neurodevelopment, Cook, M. University of North Carolina 442.034 Institute of Psychiatry, Psychology and Cooke, J. Institute of Psychiatry, Psychology and 226.001 Neuroscience, King’s College London Neuroscience, King’s College London Crais, E. University of North Carolina at Chapel Hill 321.004 414.084 Cooley Hidecker, M. University of Kentucky 413.010 415.003 Cramer, S. Aarhus University 427.025 Cooley-Cook, H. University of Louisville 422.018 Craske, M. University of California, Los Angeles 440.007 Cooper, K. University of Bath 401.096 441.009 Crasta, J. Kennedy Krieger Institute 440.002 Corbett, B. A. [email protected] 406.010 418.021 Cravo, E. Federal University of Paraná 231.002 Vanderbilt University Medical Center 429.022 429.045 Crawford, H. Coventry University 232.002 443.020 Corden, K. Royal Holloway, University of London 401.047 442.002 Crawley, D. V. Pharma Research & Early Development, Roche 321.002 432.001 Innovation Center Basel, F. Hoffmann-La 441.017 Cordero, L. Center for Autism Research, Children’s Hospital 427.042 Roche AG of Philadelphia Crehan, E. T. Tufts University 315.002 401.087 Cornaggia, C. University of Milano-Bicocca, School of 401.052 401.098 422.073 Medicine and Surgery Cremone-Caira, A. Assumption University 435.004 Cornish, K. Monash University 425.030 425.039 Cristallo, N. [email protected] 211.002 414.042 Corona, L. Vanderbilt University Medical Center - 210.004 221.002 Center for Autism and the Developing Brain Treatment and Research Institute for Autism 308.002 Crocetti, D. Kennedy Krieger Institute 307.004 Spectrum Disorder Crockford, S. K. University of Cambridge 303.001 Corrêa, J. University of Sao Paulo 407.001 Croen, L. A. Kaiser Permanente 325.003 415.018 Cortese, F. University of Calgary 434.029 419.004 419.005 Cosenza, A. IRCCS Fondazione Stella Maris 424.002 419.006 419.016 419.022 429.028 Cosgrove, J. Augustana University 403.015 429.032 Cost, K. The Hospital for Sick Children 442.029 Croft, J. University of Bristol 429.015 Costa, A. [email protected] 413.061 418.023 Crompton, C. J. [email protected] 401.015 University of Luxembourg Division of Psychiatry, University of Edinburgh Costantino, A. Fondazione IRCCS Cà Granda Ospedale 231.002 Crosbie, J. The Hospital for Sick Children 226.003 413.027 Maggiore Policlinico 434.014 441.044 Cottle, J. [email protected] 441.007 Psychology, The University of Alabama at Crosley, H. Purdue University 422.001 Birmingham Crowley, M. J. Yale Child Study Center 405.004 Coulanges, L. University of Pittsburgh 412.007 Crowley, S. M. Boston College 216.001 216.002 Coulter, K. University of Connecticut 414.074 415.038 216.003 216.004 441.001 413.032 Courchesne, E. University of California San Diego 219.001 327.001 Crume, T. University of Colorado Anschutz Medical 419.001 Campus Courchesne, V. Autism Research Group, CIUSSS du Nord-de-l 313.002 441.023 Crutcher, J. NIMH 401.012 414.060 ’Île-de-Montréal Courcy, I. Université du Québec à Montréal 401.088 425.007 Crutel, V. Servier 410.001 410.007 425.045 Coury, D. [email protected] 328.002 442.049 Cruz, D. Hackensack Meridian Health – Mountainside 412.007 Nationwide Children’s Hospital Medical Center Couture, M. [email protected] 401.016 Cserjesi, R. Institute of Psychology, ELTE Eötvös Loránd 436.005 Universite de Sherbrooke University Cowie, R. University of Edinburgh 442.041 CST Team, T. World Health Organization 228.003 425.004 426.018 426.033 Cox, B. E. Florida State University 417.001 417.011 426.045 442.003 442.006 442.025 Cox, G. Royal Children’s Hospital,Monash University 401.063 442.047 Cox, M. Texas Tech Universities 443.027 Cubit, L. S. University of Rochester 207.002 320.004 Coyle, R. E. USC Neurodevelpomental Disorders Lab 435.008 414.078 443.008 Crabbe, S. University of Pennsylvania 232.004 Cukar-Capizzi, C. Yale University School of Medicine 412.018 441.024 Cracco, E. Ghent University 444.008 Craft, A. Towson University 401.081 Craig, K. Heriot-Watt University 429.008

157 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Cukier, S. H. [email protected] 401.058 422.025 Dale, I. The National Autistic Society 326.004 417.002 PANAACEA 422.029 425.026 417.036 427.025 425.028 425.029 425.044 Dale, M. University of Toronto 429.002 Cummings, E. M. Yale University School of Medicine 406.016 412.018 Dale, N. Great Ormond Street Hospital NHS Foundation 203.003 404.001 435.012 440.005 Trust 441.024 444.005 Dallman, A. Towson University 401.100 437.015 Cummings, K. K. University of California, Los Angeles 319.001 414.058 434.007 440.006 Dalloul, N. UC Davis MIND Institute 313.003 440.007 Dalloul, N. UC Davis Psychiatry and Behavioral Sciences 401.035 Cumpanasoiu, D. C. Northeastern University 446.004 446.007 Daloya, M. University of Haifa 405.002

Curcin, K. Western University 441.020 Dalton, S. University of Utah 406.021 Curran, A. University of Missouri, School of Medicine 442.025 Daly, E. Department of Forensic and 217.002 434.017 Neurodevelopmental Sciences, Institute of 434.027 Curtin, C. University of Massachusetts Medical School 311.002 Psychiatry, Psychology and Neuroscience, 414.055 King’s College London 419.026 419.029 Daly, M. Broad Institute of MIT and 205.004 437.010 Harvard,Massachusetts General Curtis, C. King’s College London 404.005 Hospital,University of Helsinki Curtiss, S. L. University of Delaware 417.005 Daly, M. Queensland Children’s Hospital 434.005 Cusack, J. P. Autistica 314.001 Damiani, S. University of Pavia 419.024 442.008 Daniel, E. Tel-Aviv University 401.086 Cusick, C. Broad Institute of MIT and Harvard 205.004 Daniels, A. M. Simons Foundation 401.026 401.072 Custode, S. University of Miami 413.060 414.007 Daniels, J. Johns Hopkins Bloomberg School of Public 310.003 325.003 418.005 Health Cutler, D. Emory University School of Medicine 205.004 Daniels, J. L. University of North Carolina at Chapel Hill 401.045 Cutshaw, C. Mel and Enid Zuckerman College of Public 442.045 Daniels, N. Leuven Autism Research Consortium 303.002 406.024 Health, University of Arizona (LAuRes),KU Leuven 435.006 Cuvertino, S. University of Manchester 407.003 Daniels, S. National Institute of Mental Health (NIMH) 422.065 D Danika, P. Kennedy Krieger Institute 413.043 423.009

D’Abate, L. The Hospital for Sick Children 310.001 Danilina, K. Moscow State University of Psychology and 413.029 D’Agostino, C. I. Universidad Caece, Mujeres TEA, Yoenfoco 425.003 Education D’Mello, A. [email protected] 412.016 Daou, N. McNeese State University 425.018 425.021 American University 425.033 Daoud, S. Holland Bloorview 426.003 D’Silva, V. Robert Wood Johnson Barnabas Health 328.001 Monmouth Medical Center Dapretto, M. University of California, Los Angeles 318.001 319.001 414.058 434.007 da Costa, P. F. Centre for Neuroimaging Sciences, King’s 226.001 440.006 440.007 College London da Silva, N. private 415.031 Dar, S. The Hebrew University of Jerusalem 422.003 Dababnah, S. University of Maryland, Baltimore 228.003 Dardani, C. [email protected] 423.004 424.001 425.017 Population Health Sciences, Bristol Medical 429.015 Dada, R. All India Institute of Medical Sciences, New 420.003 School, Centre for Academic Mental Health Delhi Darragh, A. The Ohio State University 328.002 442.049 Dadlani, N. National Institute of Mental Health and 413.039 425.037 Neurosciences Dasgupta, J. [email protected] 425.016 Dager, S. University of Washington 307.002 308.004 Sangath 320.001 413.035 daVanport, S. [email protected] 422.021 415.027 415.039 Autistic Women & Nonbinary Network 441.005 441.043 Davey Smith, G. Population Health Sciences, Bristol Medical 423.004 424.001 School, MRC Integrative Epidemiology Unit Dahary, H. McGill University 411.016 443.038 Davezak, N. [email protected] 437.006 Dahiya-Singh, A. V. Virginia Polytechnic Institute and State 426.036 ASSE University,Virginia Tech Autism Clinic & Center Davico, C. University of Turin 231.002 for Autism Research David, C. UMR 1253, iBrain, Université de Tours, Inserm 406.027 Daikoku, T. The University of Tokyo 401.089 David, V. So Love Autistic Center 426.020 Daisey, S. N. University of Louisville 443.029

158 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Davidovitch, N. Ben-Gurion University in the Negev, Ministry 414.088 De Falco, S. University of Trento 422.050 426.004 of health Davidson, D. Loyola University Chicago 401.038 422.037 de Geus-Oei, L. Leiden University Medical Center,University 307.003 of Twente Davies, L. University of Manchester 425.015 de Hoyos, L. Max Planck Institute for Psycholinguistics 441.022 Davies, P. Colorado State University 440.002 De Korte, M. [email protected] 426.030 Radboud University Medical Center, Donders Davila, M. Texas State University 414.003 Institute for Brain, Cognition and Behaviour, Davis, A. UC Davis MIND Institute 401.035 Department of Cognitive Neuroscience,Karakter Davis, E. Vanderbilt University Medical Center 422.066 Child and Adolescent Psychiatry University Center Davis, G. University of Texas Health Science Center at 403.004 San Antonio De la Fuente-Granada, M. Instituto de Investigaciones Biomédicas, UNAM 403.007 Davis, J. University of Utah 321.003 429.024 De Los Angeles, C. Stanford University 434.026 de los Reyes, E. Nationwide Children’s Hospital 439.016 Davis, K. The Johns Hopkins University School of 443.019 de Marchena, S. L. University of Missouri 418.006 Medicine De Niz, C. DBMI - Harvard Medical School 437.005 Davis, K. [email protected] 443.052 Department of Psychiatry & Behavioral de Rothschild, A. Department of Forensic and 226.001 412.006 Sciences, UC Davis MIND Institute Neurodevelopmental Sciences, Institute of Psychiatry, Psychology and Neuroscience, Davis, L. K. Vanderbilt University Medical Center 404.004 King’s College London Davis, M. FDA 230.004 De Rubeis, S. Icahn School of Medicine at Mount Sinai 205.004 302.003 Davis, N. Duke ADHD Program, Duke University Medical 312.001 406.003 414.057 431.001 Center 406.012 409.003 418.002 419.013 De Stefano, L. Cincinnati Children’s Hospital Medical Center 406.025 443.003 446.002 de Vries, P. J. University of Cape Town 101.001 425.014 446.013 446.01 425.038 446.005 Davis, R. University of Edinburgh 411.011 607.006 Deakin, J. Cambridgeshire and Peterborough NHS 303.001 Davis, S. Washington University School of Medicine 307.002 308.004 Foundation Trust 312.002 Davis, T. Louisiana State University 414.001 Dean, D. University of Wisconsin - Madison 434.023 441.029 441.055 Davydova, E. Moscow State University of Psychology and 413.029 Dean, M. [email protected] 401.068 417.019 Education California State University, Channel Islands Dawson, G. [email protected] 202.001 418.002 Deane, E. Curtin University 401.041 Duke Center for Autism and Brain Development 202.002 419.013 207.003 422.013 Deason, J. University of California Davis 419.016 230.002 435.009 Deavenport-Saman, A. Children’s Hospital Los Angeles 422.008 312.001 435.014 322.002 435.015 Debnath, R. Leibniz Institute for Neurobiology 306.004 406.001 443.003 DeBrabander, K. University of Texas at Dallas 235.003 443.006 406.003 443.025 406.012 446.002 Defresne, P. Université de Mons 419.018 409.002 446.013 Del Bianco, T. Birkbeck University of London 217.004 320.002 409.003 446.019 425.040 Del Colle, R. University of Alberta 417.013 Dawson, M. University of California - Irvine 427.020 del Valle Rubido, M. Roche Pharma Research and Early 410.005 Dawson, P. Cooperative Research Centre for Living with 423.010 Development, Roche Innovation Center Autism (Autism CRC),Mater Research Institute, The University of Queensland Delafield-Butt, J. [email protected] 402.001 415.011 University of Strathclyde 441.004 Dawson-Squibb, J. University of Cape Town 425.014 dell’Acqua, F. [email protected] 215.004 307.001 Day, T. Stony Brook University 402.006 435.001 Institute of Psychiatry, Psychology and 434.022 Neuroscience, King’s College London Day, T. N. [email protected] 418.007 Florida State University,University of Pittsburgh Delorme, R. [email protected] 217.004 226.001 School of Medicine Excellence centre for Autism and Neurodevelopmental disorders Dayal, H. Maulana Azad Medical College, New Delhi, 437.009 India Delos Santos, J. Hunter College, City University of New York 422.031 422.072 De Angelis, J. [email protected] 414.061 DeLucia, E. Virginia Polytechnic Institute and State 305.001 413.051 University of Milano-Bicocca University 414.038 429.025 de Bildt, A. University Medical Center Groningen, University 417.004 425.006 DeMaria, A. Purdue University 422.001 of Groningen 427.019 De Chiara, V. CTA 425.003

159 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Demontis, D. Center for Genomics and Personalized 325.001 Dietrich, A. University Medical Center Groningen, University 427.019 Medicine, CGPM, and Center for Integrative of Groningen Sequencing, iSEQ,Aarhus University,The Diez Villoria, E. University of Salamanca 429.013 429.036 Lundbeck Foundation Initiative for Integrative 436.003 Psychiatric Research, iPSYCH Diggins, C. Simons Foundation 408.004 Demurie, E. Ghent University 226.001 DiGuiseppi, C. University of Colorado Anschutz Medical 419.001 den Houting, J. Macquarie University 429.004 Campus den Otter, J. Education and Early Childhood Development 442.029 Dillon, E. F. RUSH University Medical School 413.033 413.043 Deng, H. Child Developmental & Behavior Center, Third 426.033 446.014 Affiliated Hospital of SUN YAT-SEN University, Dilly, L. Marcus Autism Center 414.006 Guangzhou, China Dimachkie-Nunnally, A. University of California, Davis 211.001 305.002 DeNigris, D. Fairleigh Dickinson University 422.031 410.006 417.029 DiMarino, E. Cortica Healthcare 404.007 Denluck, E. PEERS lab: UCLA PEERS Clinic 401.101 427.015 Dimian, A. University of Minnesota 441.046 Denney, K. La Trobe University 401.029 Dimitrov, M. Institute of Psychiatry, Psychology and 217.002 Dent, G. Washington University in St. Louis 312.002 Neuroscience, King’s College London DeOliveira, C. University of Western Ontario 403.001 Dindar, K. University of Oulu 413.067 Deronda, A. [email protected] 307.004 Ding, Z. Western Univeristy 441.041 441.044 Kennedy Krieger

Desai, A. Department of Pediatrics, University of 442.020 Dingemanse, M. Centre for Language Studies, Radboud 441.034 Washington, Seattle Children’s Research University Institute Dinstein, I. Ben-Gurion University of the Negev,National 414.013 419.021 Desai, S. University of California, San Francisco 434.002 Autism Research Center 426.046 430.004 DeSain, T. DBMI - Harvard Medical School 437.005 Dintino, C. William & Mary 443.004 DesChamps, T. University of Washington 442.032 Dirks, B. University of Miami 419.028 434.003 Désormeaux-Moreau, M. Université de Sherbrooke 401.016 Dispirito, N. UBC 417.034 Desrosiers, J. University of Montreal 422.068 Dissanayake, C. [email protected] 210.001 314.003 Devlin, B. University of Pittsburgh School of Medicine 205.004 208.001 Olga Tennison Autism Research Centre, School 401.103 414.098 of Psychology and Public Health, La Trobe 415.012 423.010 University of Calgary Dewey, D. 434.029 University 426.007 429.004 Di Martino, A. Child Mind Institute 226.004 231.002 Di Martino, J. Duke University 207.003 230.002 DiStefano, C. University of California Los Angeles 231.001 409.002 312.001 406.003 Divan, G. [email protected] 425.001 425.005 446.002 446.013 Sangath 425.015 425.016 446.019 425.024 607.005 Di Rezze, B. M. McMaster University 401.077 413.010 Dixon, P. Wayne State University 228.003 442.025 Di Stefano, D. CETRA 442.046 Do, H. M. University of Louisville 443.029 Diamond, E. Child Study Center, Yale University School of 322.003 414.041 Medicine 443.035 Doan, R. Boston Children’s Hospital 430.001 Dias, C. [email protected] 401.102 Dobrescu, I. University of Medicine and Pharmacy “Carol 419.015 Cambridgeshire and Peterborough NHS Davila”,“Prof. Dr.Alex. Obregia” Psychiatry Foundation Trust Hospital Dibb, B. University of Surrey 235.001 401.055 Dodds, R. 9. [email protected] 317.004 401.050 443.007 California State University Los Angeles Dichter, G. S. University of North Carolina 401.045 Doehring, P. ASD Roadmap 442.019 Dick, C. University of Washington 442.032 Doherty, M. [email protected] 401.062 429.007 Dickel, D. Lawrence Berkeley National Lab 205.004 Our Lady’s Hospital 442.008 Dickinson, A. University of California, Los Angeles 209.001 Dolan, B. Medical College of Wisconsin 306.001 406.023

Dickson, K. S. [email protected] 415.019 Dolata, J. K. Oregon Health & Science University,Pacific 413.009 413.019 Child and Adolescent Services Research University 413.028 446.020 Center Dominick, K. C. Cincinnati Children’s Hospital Medical 406.018 415.030 Dickter, C. L. College of William and Mary 443.004 443.034 Center,University of Cincinnati College of 415.032 429.006 Medicine 429.020 442.001 DiCriscio, A. S. Geisinger Autism & Developmental Medicine 321.001 Institute Donaghue, A. Tufts University 401.098 Dieckhaus, M. F. University of Connecticut 401.012 414.060 Donaldson, C. Radboud University 435.002 Diehl, K. E. Simons Foundation 401.026 Dong, S. UCSF School of Medicine 205.004 Diehm, R. Medical University of Vienna 427.025 Donley, E. Stemina Biomarker Discovery 406.008 Donovan, K. University of North Carolina 410.004 415.027 443.041 160 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Dorey, J. University of Massachusetts Lowell 427.027 Dupuis, A. [email protected] 418.013 418.022 University of Toronto, Dalla Lana School of Doria, G. Federal University of Paraná 442.006 442.047 Public Health Dotan, O. Soroka Medical Center 426.046 Duque-Wilckens, N. Michigan State University 316.002 Dougherty, J. Washington University School of Medicine 223.001 Durham, H. University of Georgia 442.018 Douglas, S. Michigan State University 409.001 422.012 Durham, L. STALICLA SA 303.004 327.004 427.031 Doumas, M. Queen’s University Belfast 436.004 Durkin, M. University of Wisconsin School of Medicine and 401.043 419.023 Dow, D. UCLA Semel Institute for Neuroscience & 312.003 Public Health Human Behavior Durocher, J. S. University of Miami 414.007 418.005 Dow, H. C. University of Pennsylvania 401.054 430.003 Durston, S. University Medical Center Utrecht 215.003 215.004 Dowds, E. M. [email protected] 426.003 307.001 434.022 Holland Bloorview Kids Rehabilitation Hospital- Autism Research Centre Dutheil, F. Université Clermont Auvergne, CNRS, LaPSCo, 436.005 Doyle, J. K. [email protected] 429.007 429.016 CHU Clermont-Ferrand, WittyFit University of Dublin, Trinity College Duvall, L. University of Alabama 434.016 Doyle, T. University of Stirling 235.002 Duvall, S. Oregon Health & Science University 414.046 Dragoy, O. HSE University,Federal Center for Stroke and 413.029 Dwyer, P. [email protected] 422.037 422.072 Neurotechnologies University of California, Davis 426.013 426.031 Drapalik, K. N. Yale Child Study Center 427.036 440.008 Dyke, P. University of Missouri 427.013 Drapeau, E. Icahn School of Medicine at Mount Sinai 302.003 Dykens, E. Vanderbilt University 426.008 Dreiling, N. University of North Carolina 442.034 Dzhelyova, M. UCL 418.004 Dreyer Gillette, M. Children’s Mercy Kansas City,University of 210.003 444.003 Missouri Kansas City School of Medicine Dziura, J. Yale University 202.001 Drimalla, H. University of Bielefeld 229.004 409.002 Dromi, E. Tel Aviv University 401.086 435.009 435.014 Drury, B. American University 412.016 435.015 Druyvesteyn, M. Radboud University 435.002 443.025 Drye, M. Center for Autism Research, Children’s Hospital 207.002 414.078 of Philadelphia E Du Rocher Schudlich, T. Western Washington University 422.057 Eack, S. University of Pittsburgh School of Social Work 442.030 Duane, S. C. The George Washington University 301.003 Eapen, V. Cooperative Research Centre for Living with 423.010 Autism (Autism CRC) 426.021 Dub, B. Kaiser Permanente Southern California 437.008 Earl, E. Oregon Health & Science University 403.005 DuBay, M. University of North Carolina 414.039 425.043 Earl, R. University of Washington 406.014 408.003 427.043 430.002 Dubey, R. [email protected] 406.005 Medanta Superspeciality Hospital 439.003 439.006 439.010 Dudick, C. SiLAS Solutions 443.022 Eastland, J. Newcastle University 414.009 Duerden, E. Western University 434.028 Easton, A. Durham University 322.004 Duerksen, K. University of Victoria 417.027 Ebeling, H. Oulu University Hospital and University of Oulu 413.067 427.025 Dufek, S. University of California, Davis 422.015 446.006 446.010 446.021 Echenique, L. Grupo Cidep, Mujeres TEA 425.003 Dufour, B. University of California, Davis 438.001 Eckel, S. University of Southern California 309.001 Dufresne, S. R. Tufts University 315.002 401.087 Ecker, C. University Hospital, Goethe University, Frankfurt 215.003 307.001 422.073 am Main 432.001 434.017 Duhon, G. Texas Children’s Hospital,Baylor College of 421.001 442.044 434.022 434.027 Medicine Edden, R. A. The Johns Hopkins University School of 217.003 307.004 Duis, J. Children’s Hospital Colorado Anschutz 403.006 Medicine Duker (Stein), L. University of Southern California 441.010 Edmondson, C. University of Delaware 443.045 Duku, E. McMaster University 313.001 313.002 Edmunds, S. R. Boston Children’s Hospital,Harvard School of 402.002 411.013 413.010 422.023 Medicine 427.004 429.027 442.029 Edwards, G. Aston University 418.008 Edwards, L. A. Marcus Autism Center, Children’s Healthcare 304.002 324.003 Dumas, G. Institut Pasteur 215.001 215.003 of Atlanta and Emory University School of 406.013 415.013 432.001 Medicine 415.028 415.033 Dumont, R. Thomas Jefferson University 401.091 415.035 Dunlap, K. Stanford University 437.001 Edwards, M. Emory University 224.001

161 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Efrim-Budisteneau, M. ‘Victor Babes’ National Institute of Pathology 427.025 Erickson, K. Michigan State University 427.031 Eggebrecht, A. T. Washington University School of Medicine 307.002 Errafii, K. College of Health and Life Sciences, Hamad 431.002 Bin Khalifa University, Qatar Foundation, Egger, H. New York University Langone Health 418.002 Education City, Doha, Qatar.,Qatar Biomedical Ehrenthal, D. University of Wisconsin Madison 401.043 Research Institute (QBRI), HBKU, Qatar Eichler, E. E. Howard Hughes Medical Institute,University of 406.014 408.003 Foundation Washington 430.001 430.002 Eshraghi, O. University of Pennsylvania 401.054 439.003 439.010 Español Martín, G. Hospital Universitari Vall d’Hebron 429.013 Eigsti, I. [email protected] 401.012 414.060 Espenhahn, S. University of Calgary 434.029 University of Connecticut 414.077 434.019 Espinosa, S. Department of Electrical and Computer 207.003 312.001 Eiland, A. Yale University School of Medicine 444.005 Engineering, Duke University 406.003 446.013 Eisenhower, A. University of Massachusetts Boston 228.002 415.008 446.019 Esplin, M. Intermountain Healthcare 406.021 Ekremet, P. A. Accra Psychiatric Hospital 422.026 Estes, A. University of Washington 307.002 308.004 Elashoff, D. UCLA Medical Center 207.001 227.002 320.001 413.035 Eldeeb, S. Y. Drexel University 414.074 414.042 415.027 Elgersma, Y. Erasmus Medical Center 403.013 415.039 422.013 426.002 441.005 Elias, R. University of California, Los Angeles 315.001 401.065 441.043 441.046 422.074 443.041 Eliasziw, M. Tufts University School of Medicine 414.055 419.026 Estes, M. University of California Davis 403.010 419.029 Elison, J. T. University of Minnesota 207.004 307.002 Estrugo, Y. Bar - Ilan University 443.036 443.054 308.004 320.001 Ethier, A. University of Quebec in Outaouais,Autism 422.068 443.055 425.046 429.040 Research Group, CIUSSS du Nord-de-l ’Île- 441.046 443.041 de-Montréal Elkhatib Smidt, S. Children’s Hospital of Philadelphia,University of 430.003 Ethridge, L. University of Oklahoma Health Science Center 406.025 Pennsylvania EU-AIMS, L. EU-AIMS Organization 215.001 215.002 Elkins, J. SIMmersion, LLC 213.002 215.003 215.004 Ellegood, J. Hospital for Sick Children 233.001 302.003 306.003 307.001 403.011 320.002 425.040 Ellert, K. Bar-Ilan University 412.008 434.004 434.022 Elliott, E. Bar Ilan University 423.005 Eule, E. Roche Pharma Research and Early 410.005 441.011 Development, Roche Innovation Center Ellis, C. University of Manchester 414.027 427.040 Eurosibs Team, &. Birkbeck 442.008 Ellis, C. L. Institute of Psychiatry, Psychology and 215.001 217.002 Evangeliou, A. Aristotle University of Thessaloniki 446.024 Neuroscience, King’s College London Evans, A. C. McGill University 307.002 Ellis-Weismer, S. University of Wisconsin-Madison 413.030 Evans, D. W. [email protected] 321.002 441.017 Ellison, K. S. Louisiana State University 414.001 Bucknell University Elsabbagh, M. McGill University 228.003 310.001 Evans, G. Cumbria, Northumberland, Tyne and Wear NHS 427.002 313.001 313.002 Foundation Trust 419.027 422.023 Everitt, A. University of California San Francisco 233.004 422.044 429.027 442.029 Evers, K. KU Leuven,UPC Z.org KU Leuven 218.003 Elsayed, M. Rutgers University 406.004 443.022 Exner, C. University of California San Francisco 233.004 Emerman, I. University of Washington 435.014 Eyler, L. T. Univeristy of California, San Diego 327.001 Emmons, K. A. University of Washington 413.035 Eyles, D. The University of Queensland,Queensland 403.003 Emsley, R. Kings College 220.001 Centre for Mental Health Research Endinjok, B. California State University Northridge 401.023 Eyo, U. University of Virginia 212.002 Eng, C. Cleveland Clinic 302.002 316.003 Eytan, D. [email protected] 419.021 431.003 Bar Ilan University Engchuan, W. The Hospital for Sick Children 310.001 Eyuboglu, D. Eskisehir Osmangazi University Medical School 441.012 Englestad, A. Harvard University 201.001 Eyuboglu, M. [email protected] 441.012 Eskisehir Osmangazi University Medical School Engstrom, E. UC Davis MIND Institute 304.001 427.014 Enneking, B. Indiana University School of Medicine 414.080 F Ensor, R. Brock University 401.077 F. Elhag, S. Qatar Biomedical Research Institute (QBRI), 431.002 Erath, S. Auburn University 435.011 HBKU, Qatar Foundation Erickson, C. Cincinnati Children’s Hospital Medical 406.018 406.025 Center,University of Cincinnati College of 415.030 415.032 Medicine 429.020 442.001

162 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Factor, R. S. [email protected] 426.035 426.036 Fein, R. Texas Children’s Hospital,Baylor College of 422.069 442.044 Virginia Tech Autism Clinic & Center for Autism Medicine Research,Virginia Polytechnic Institute and Feinberg, E. Boston University School of Public Health 437.013 State University,UCLA Semel Institute for Neuroscience and Human Behavior Feiner, H. Child Study Center, Yale University School of 322.003 414.041 Medicine 443.035 Fagerland, M. Oslo University Hospital 426.009 Feldman, J. I. Vanderbilt University Medical Center 324.004 441.018 Failla, M. D. The Ohio State University 324.004 Fair, D. Masonic Institute for the Developing Brain 403.005 Feliciano, P. Simons Foundation 231.004 401.026 Fairchild, A. University of South Carolina 414.094 401.072 408.004 430.001 Faja, S. Boston Children’s Hospital 202.001 402.002 Felicicchia, R. Purdue University 439.013 409.002 411.013 427.004 435.004 Fell, L. MGH 422.051 435.009 435.014 Felzer-Kim, I. Michigan State University 441.047 437.012 Fenning, R. M. [email protected] 422.024 422.045 Falagiarda, F. Université Catholique de Louvain 418.019 California State University, Fullerton 435.011 Falck-Ytter, T. Karolinska Institutet & Uppsala University 226.001 406.009 Fergus, K. College of William and Mary 443.034

Falkmer, M. Curtin University 311.003 414.045 Ferguson, B. [email protected] 406.002 427.013 427.003 University of Missouri Fallin, M. Johns Hopkins University 310.003 325.003 Ferguson, E. University of California Santa Barbara 442.033 442.035 401.045 415.018 419.004 419.005 Ferguson, J. K. Marcus Autism Center 414.018 414.019 419.006 419.014 Fernandes, N. Centre for Addiction and Mental Health 429.002 419.016 419.022 Falter-Wagner, C. University of Cologne,LMU Hospital Munich 418.010 Fernandes, S. J. Drexel University 328.001 Fan, S. Taipei Medical University Hospital 426.022 Fernandes, T. McGill University 418.025 Fang, H. McMaster University 413.010 Fernandez, B. Memorial University of Newfoundland and 310.001 Eastern Health Farash, S. University of Rochester Medical Center 413.014 Ferrante, C. University of Milan-Bicocca 442.003 Farchione, T. FDA 230.004 Ferrara, K. National Institute of Mental Health (NIMH) 422.065 Farhat, H. PlayingForward 446.011 Ferre, S. UMR 1253, iBrain, Université de Tours, Inserm 406.027 Farmer, C. National Institute of Mental Health 404.003 410.003 Ferrer, E. UC Davis 313.003 414.101 Faroy, M. Soroka Medical Center 414.013 426.046 Ferretti, C. J. Albert Einstein College of Medicine, Psychiatric 441.011 Research Institute at Montefiore-Einstein Farr, W. Sussex Community NHS Trust 414.047 414.107 Ferretti, S. UC Irvine 427.020 442.021 Farran, L. K. Communication Sciences and Disorders, 224.004 Ferrin, M. Re:Cognition Health 410.007 University of West Georgia Feuling, L. Stemina Biomarker Discovery 406.008 Farzadegan, H. Johns Hopkins Bloomberg School of Public 310.003 325.003 Filho, J. Child Mind Institute 226.004 Health Finch, T. Northumbria University 427.007 Fasano, R. M. University of Miami 413.060 446.015 Finlayson, R. University of Washington 422.013 Fatta, L. Istituto Superiore di Sanità 427.025 Finn, C. E. Child Study Center, Yale University School of 435.003 Fears, N. E. [email protected] 441.035 441.036 Medicine 441.024 University of North Texas Health Science Fischbach, R. Columbia University 422.060 Center Fish, L. King’s College London 406.009 Fecher, M. Center for Autism Research, Children’s Hospital 207.002 414.078 of Philadelphia Fisher, H. Geisinger 221.001 Fecteau, S. Université du Québec en Outaouais 401.040 427.034 Fisher, M. H. [email protected] 401.040 Michigan State University Feczko, E. University of Minnesota, Medical School 403.005 Fisher, S. Donders Institute for Brain, Cognition 441.022 Federick, B. Harvard Medical School & McLean Hospital 434.005 and Behaviour,Max Planck Institute for Federico, A. [email protected] 415.014 Psycholinguistics University of South Carolina Fishman, I. SDSU/UC San Diego,San Diego State 415.040 434.015 Feehan, K. St. Christopher’s Hospital for Children 308.001 University Feerst, H. J. University of California Santa Barbara 442.033 442.035 Fisler, L. A. California State University Los Angeles 401.050 Fitzgerald, A. R. University of California, Davis 305.002 Fein, D. A. University of Connecticut 308.001 401.012 414.060 415.004 Fitzgerald, R. Washington University School of Medicine 419.001 415.010 415.038 Fitzpatrick, P. Assumption College 443.028 434.019 441.001 Fiume, M. DNAstack 310.001

163 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Flanagan, D. Loyola Marymount University 401.090 Foster, M. University of South Carolina 415.014 Flanagan, H. [email protected] 426.038 Foster, N. C. Istituto Italiano di Tecnologia 411.017 IWK Health Centre Foster, R. E. Child Study Center, Yale University School of 322.003 414.041 Flash, T. Weizmann Institute of Science 405.005 Medicine 443.035 Fleck, M. Vanderbilt University Medical Center- Treatment 221.002 Fox, E. University of Washington 328.003 and Research Institute for Autism Spectrum Fox, K. DBMI - Harvard Medical School 437.005 Disorder Foxe, J. University of Rochester Medical Center 440.001 Fleisch, C. Simons Foundation 430.001 Foy, J. Children’s Hospital of Philadelphia 443.008 Fleischhaker, C. Department of Child and Adolescent Psychiatry, 411.014 University of Freiburg Francis, C. B. Florida State University 417.001 417.011 Fletcher-Watson, S. University of Edinburgh 401.015 411.011 Francis, D. [email protected] 401.008 415.011 417.018 King’s College London 442.041 443.013 Francis, R. W. Telethon Insitute for Child Health Research 309.002 Fleurio, G. Boston Medical Center 437.013 Francis, S. Vanderbilt University Medical Center - 210.004 308.002 Fleury, V. P. Florida State University 417.009 Treatment and Research Institute for Autism Flores, M. Icahn School of Medicine at Mount Sinai 302.003 Spectrum Disorder Flores, N. [email protected] 427.025 Franco, M. [email protected] 413.061 University of Salamanca University of Luxembourg Floris, D. L. Donders Centre for Cognitive Neuroimaging 215.003 215.004 Frangou, L. King’s College London, Institute of Psychiatry, 446.012 307.001 434.022 Psychology and Neuroscience 434.025 Franklin, L. Towson University 417.031 Flowers, J. Duke Center for Autism and Brain Development 312.001 406.003 Franz, L. Duke University 406.012 409.003 446.013 446.019 418.002 419.013 Flusser, H. Soroka University Medical Center,National 414.013 430.004 425.038 443.003 Autism Research Center 446.002 Fodstad, J. C. Indiana University School of Medicine,Indiana 414.066 Fraser, A. University of Utah 406.021 University Health Physicians Frayne, M. F. King’s College London, Institute of Psychiatry, 414.004 Fok, M. Virginia Polytechnic Institute and State 305.001 414.038 Psychology and Neuroscience University Frazier, T. W. John Carrol University 310.001 316.003 Foley, K. Southern Cross University,The University of 309.004 321.002 414.091 New South Wales Freedman, B. [email protected] 413.021 443.045 Folta, S. C. Tufts University 311.002 University of Delaware Fombonne, E. J. Oregon Health & Science University 413.009 413.019 Freedman, E. University of Rochester Medical Center 440.001 413.028 446.020 Freeman, N. [email protected] 414.068 414.081 Fong, H. [email protected] 425.030 Monash University Monash University Malaysia Freeman, S. UCLA Medical Center 414.092 Fong, V. Simon Fraser University 442.037 Freeston, M. Newcastle University 318.003 401.017 Forbes, G. King’s College London, Institute of Psychiatry, 315.001 410.002 414.009 Psychology and Neuroscience 418.014 422.062 427.002 427.010 Ford, A. L. Marcus Autism Center,Emory University 403.005 429.017 442.042 Ford, R. Anglia Ruskin University 443.002 Freitag, C. M. [email protected] 215.003 322.001 Forde, N. Donders Institute for Brain, Cognition and 307.001 Department of Child and Adolescent Psychiatry, 409.004 414.100 Behaviour, Radboud University Nijmegen Psychosomatics and Psychotherapy, University 441.006 Medical Centre Hospital Frankfurt, Goethe University Forgeot d’Arc, B. Université de Montréal 401.088 425.007 Frewer, V. [email protected] 411.015 425.045 Griffith University Forner Puntonet, M. Hospital Universitari Vall d’Hebron 429.013 Frezzia, R. Brigham Young University 434.012 Fornito, A. Turner Institute for Brain and Mental Health, 434.001 Fridell, A. Karolinska institute 414.045 427.037 School of Psychological Sciences, and Monash Biomedical Imaging, Monash University Fried, T. Rose F. Kennedy Center, Children’s Evaluation 427.022 Forsen, E. G. University of North Carolina at Chapel Hill 415.027 and Rehabilitation Center; Montefiore Medical Center Foss-Feig, J. H. [email protected] 414.057 429.012 Seaver Autism Center for Research and 435.013 439.014 Friedman, A. [email protected] 314.004 Treatment, Department of Psychiatry, Icahn 439.018 443.021 Boston Medical Center School of Medicine at Mount Sinai Hospital 444.005 Friedman, N. University of Alabama 443.018 Fossi, A. Jefferson Center for Autism & Neurodiversity 401.062 Friedrichs, M. University of Kansas Medical Center 426.017 Foster, J. McMaster University 212.001 Friesen, K. A. University of Calgary 422.054 Foster, J. [email protected] 401.102 Frisch, M. University of Connecticut 441.001 King’s College London

164 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Fritz, A. Institute of Psychiatry, Psychology and 226.001 Ganz, W. University of Washington 439.010 Neuroscience, King’s College London Gao, X. School of Medicine, Tsinghua University 406.026 Frka, C. CSI 422.031 Gao, Y. Michigan State University 316.002 Frost, D. University College London 235.001 401.055 Gao, Z. Santa Clara University 414.012 443.007 Frost, K. M. Michigan State University 413.034 422.049 Garces, P. Hoffmann-La Roche 306.003 Garcia, B. Dartmouth College 202.004 Frye, C. Cincinnati Children’s Hospital Medical Center 442.023 Garcia, C. University of California, Los Angeles 305.002 Fryfogle, L. Towson University 401.100 Garcia, G. M. Texas Tech University 442.038 Fu, J. Broad Institute of MIT and 205.004 Garcia, M. UIC 425.020 425.042 Harvard,Massachusetts General Hospital Garcia, R. A. Clínica Las Condes, Santiago, Chile. 401.058 422.025 Fuchu, P. Boston University School of Medicine 437.013 446.020 422.029 425.026 425.028 425.029 Fuentes, J. Policlinica Gipuzkoa 410.007 425.044 Fuerth, J. DNAstack 310.001 Garcia-Forn, M. Icahn School of Medicine at Mount Sinai 302.003 431.001 Fujino, J. Medical Institute of Developmental Disabilities 231.002 Research, Showa University García-Primo, P. Institute of Health Carlos III, ISCIII 427.025 Fukatsu, R. Research Institute of National Rehabilitation 401.027 Gardner, L. Johns Hopkins All Children’s Hospital 414.050 417.026 Center for Persons with Disabilities Gardner, R. M. Karolinska Institutet 423.004 424.001 Fukuda, J. Hiratani Children’s Clinic 413.015 Garg, S. University of Manchester 407.003 434.031 Fulceri, F. Istituto Superiore di Sanità 427.025 Furby, H. Personalised Health Care, F. Hoffmann-La 414.029 Gargan, C. Syracuse University 413.004 413.065 Roche Ltd Furlanello, C. HK3 Lab 426.037 Garland, D. Cumbria, Northumberland, Tyne and Wear NHS 410.002 414.009 446.003 Foundation Trust 422.062 Furnier, S. University of Wisconsin-Madison 419.023 Garman-McClaine, B. Indiana University 427.021 Garrido, G. Universidad de la República 401.058 420.002 G 422.025 422.029 Gabis, L. V. Sheba Medical Center 405.002 419.021 425.009 425.026 425.028 425.029 Gabriela Rocha Araujo, A. Federal University of São João del-Rei 425.012 425.044 437.006 Gabrieli, J. Massachusetts Institute of Technology 413.007 Garrido, M. University of Melbourne 412.009 Gabrielsen, T. P. [email protected] 414.052 429.001 Garrison, W. University of Massachusetts Medical School 414.076 Brigham Young University Garvin, B. St. Christopher’s Hospital for Children 308.001 Gaddour, N. University Hospital F. Bourguiba 401.010 401.020 Garvin, J. The Ohio State University 328.002 442.007 442.049 Gadow, K. Stony Brook University 429.023 Gates, J. A. Stony Brook University 443.015 Gage, H. University of Surrey 442.021 Gau, S. National Taiwan University Hospital & College 401.032 423.011 Gahan, R. The University of Alabama at Birmingham 441.052 of Medicine Gaigg, S. B. [email protected] 418.024 Gaudet, E. University of Alberta 417.013 Autism Research Group, City, University of Gavin, W. Colorado State University 440.002 London Gecz, J. Adelaide Medical School and the Robinson 430.002 Gaillard, E. University of Glasgow 446.025 Research Institute, University of Adelaide, Gal, E. [email protected] 401.034 401.105 Adelaide, Australia University of Haifa Gehricke, J. University of California, Irvine 427.020 Galbusera, A. Functional Neuroimaging Lab, Centre for 208.002 Gehringer, B. University of Pennsylvania 401.054 430.003 Neuroscience and Cognitive Systems Galetta, N. Private practice 425.003 Gengoux, G. W. Stanford University School of Medicine 422.048 427.018

Gallagher, E. Autism Spectrum Australia 401.029 401.044 Genova, H. M. Kessler Foundation 437.004 Gallagher, L. Trinity College Dublin 231.002 429.007 Genovesi, E. [email protected] 425.036 442.008 King’s College London Gallagher, M. Towson University 401.100 Gentles, S. J. McMaster University 413.010 Gallagher, S. University of Limerick 323.002 George, M. RTI International 439.017 Gammer, I. Surrey & Borders Partnership NHS Foundation 414.054 Georgescu, A. L. King’s College London 229.002 Trust Gamutan, J. Rowan University 429.009 Gandhi, T. K. Indian Institute of Technology Delhi 446.022 Ganesan, S. SFARI, Simons Foundation 408.004

165 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Georgiades, S. McMaster University 231.002 313.001 Gios, T. Santa Casa de São Paulo School of Medical 429.037 313.002 413.010 Sciences 413.027 422.023 Girault, J. B. University of North Carolina 204.001 415.027 429.005 429.027 415.039 434.014 441.020 Girdler, S. J. Curtin University 311.003 414.045 441.041 441.044 427.003 442.029 Girke, L. Karolinska Institutet 226.001 Georgoula, C. Re:Cognition Health 410.007 Girma, F. Addis Ababa University 326.001 Gerber, A. H. [email protected] 443.015 Stony Brook University Giroux, M. Aut’Créatifs 401.088 425.007 425.045 Gerdts, J. University of Washington 328.003 442.024 Gisbert, L. Hospital Universitari Vall d’Hebron 429.013 429.036

Gerig, G. New York University 307.002 415.039 Giserman-Kiss, I. Neurodevelopmental and Behavioral 414.057 414.093 Phenotyping Service, National Institutes of Geschwind, D. H. University of California, Los Angeles 430.001 Mental Health Getselter, D. Bar Ilan University 423.005 Gissler, M. National Institute for Health and Welfare 309.002 Getz, M. Boston Children’s Hospital 311.001 427.025 Geurts, H. M. University of Amsterdam 401.021 401.046 Gizzo, D. Kaiser Permanente 437.008 401.094 411.008 Glaser, T. University of Sao Paulo 407.001 414.051 Glauser, J. Harvard College 412.014 Gev, T. [email protected] 426.024 Association for Children at Risk,Bar-Ilan Glazer, D. Verily Life Sciences 310.001 University Glider, P. Campus Health, University of Arizona 442.045 Geva, R. Bar-Ilan University 443.036 Gliga, T. Birkbeck University of London 406.009 Geyer, C. Federal University of Paraná 231.002 442.006 425.016 442.047 Glodjo, A. Sunny Hill Health Centre at BC Children’s 417.034 Ghai, S. Marcus Autism Center, Children’s Healthcare 224.001 Hospital of Atlanta, and Emory University School of Glowinski, A. [email protected] 415.036 Medicine Washington University in St. Louis Gharehgazlou, A. University of Toronto 434.014 Godfrey, K. [email protected] 434.029 Ghersi, S. Fondazione Paideia 442.003 University of Calgary Ghods, S. University of California San Francisco 401.083 Godoy, L. Children’s National Hospital 228.001 Ghorai, A. University of Pennsylvania 430.003 Godoy, P. Universidade de Sao Paulo (USP) 426.029 Ghosh, S. Research Insights and Innovation, Population 425.004 Godwin, D. Baylor College of Medicine,Texas Children’s 422.069 Health & Safety Hospital Giannotti, M. University of Trento 422.050 Goel, D. University of California, San Diego 327.001 Giauque, A. Massachusetts General Hospital 427.032 Goeldner, C. Neuroscience and Rare Diseases (NRD), 410.005 Roche Pharma Research and Early Gibbs, V. Autism Spectrum Australia 401.044 401.104 Development, Roche Innovation Center 414.005 Gibson, A. Children’s Mercy Kansas City 210.003 Goh, S. Cortica Healthcare 404.007 Gibson, M. Children’s Mercy Kansas City 210.003 Goin-Kochel, R. P. [email protected] 421.001 422.069 Texas Children’s Hospital,Baylor College of 442.044 Brigham Young University Gifford, D. R. 418.027 443.017 Medicine 443.043 Gilchrest, C. Johns Hopkins All Children’s Hospital 414.050 Gois, B. [email protected] 442.013 University of Missouri, School of Medicine Gillani, S. The University of Texas Health Science Center 419.015 at Houston Golan, H. M. Ben-Gurion University of the Negev,National 419.021 430.004 Autism Research Center Gillentine, M. A. [email protected] 430.002 University of Washington Golan, O. [email protected] 401.034 419.021 Bar-Ilan University,Association for Children 426.024 429.038 Gillespie, S. [email protected] 401.076 at Risk 443.011 Emory University School of Medicine Goldberger, T. UBC 417.034 Gillespie-Lynch, K. College of Staten Island; CUNY Graduate 235.004 417.016 Center 422.031 422.037 Goldblum, J. E. University of North Carolina at Chapel Hill 414.082 437.015 422.072 425.012 Golden, K. J. [email protected] 425.030 425.039 425.018 425.021 Monash University Malaysia 425.033 Goldfarb, Y. [email protected] 401.034 Gilliat, S. Brigham Young University 443.017 443.043 University of Haifa

Gillis, J. Binghamton University 443.056 Goldman, S. g. [email protected] 446.001 Columbia University Irving Medical Center Gilmore, D. The Ohio State University 328.002 442.049 Goldschmidt, G. University of California, Santa Barbara (UCSB) 427.023 Ginnell, L. University of Edinburgh 415.011 Goldstein, A. Bar-Ilan University 402.004

166 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Golson, M. E. Utah State University 414.052 436.002 Grahame, V. Cumbria, Northumberland, Tyne and Wear NHS 410.002 414.009 Foundation Trust 422.062 427.006 Golt, J. The University of Alabama 418.015 446.004 442.021 Grainger, C. University of Stirling 401.078 401.080 Gomez Alvarado, C. UCLA 324.002 Grant, C. University College London 446.012 Gomot, M. UMR 1253, iBrain, Université de Tours, Inserm 436.005 Grapel, J. N. [email protected] 406.012 Goncalves Fortes, D. Child Study Center, Yale University School of 322.003 414.041 Duke Center for Autism and Brain Development Medicine 443.035 Grassi, A. Villa Santa Maria Foundation 441.032 Gong, X. National Clinical Research Center for Mental 411.006 Gratten, J. Institute for Molecular Bioscience, 423.010 Disorders The University of Queensland,Mater Gonzalez, M. Azrieli Center for Autism Research, Montreal 419.027 Research Institute, The University of Neurological Institute-Hospital,McGill University Queensland,Cooperative Research Centre for Living with Autism (Autism CRC) González-Arenas, A. Instituto de Investigaciones Biomédicas, UNAM 403.007 Graucher, T. The Hebrew University of Jerusalem 426.019 Goodall, E. Health Possibilities 426.021 Graves, W. Rutgers University 412.007 Goodman, H. UCLA Semel Institute for Neuroscience and 401.101 427.016 Human Behavior 427.024 Grazioli, M. [email protected] 426.012 Montclair State University Goodman, M. University of Pennsylvania 430.003 Greaves-Lord, K. University of Groningen,Yulius Organization 427.019 Goodman, Z. University of Miami 434.003 for Mental Health,Lentis Psychiatric Goodrich, A. University of California Davis 419.020 Institute,Erasmus MC-Sophia Goodwin, A. Department of Forensic and 226.001 412.006 Green, G. UCLA Department of AA Studies, EASE 422.075 Neurodevelopmental Sciences, Institute of Project team/ARCS Project/ UCEDD Children’s Psychiatry, Psychology and Neuroscience, Hosptial LA King’s College London Green, J. University of Manchester 220.002 414.027 Goodwin, J. C. Newcastle University 410.002 414.009 425.005 425.015 422.062 425.024 426.029 Goodwin, M. S. [email protected] 211.003 446.004 427.040 434.031 Northeastern University 446.007 Green, S. University of California, Los Angeles 318.001 319.001 Goon, J. University of California Davis 403.010 414.058 434.007 440.006 440.007 Gordillo, M. L. Boston University 311.001 Green Snyder, L. Simons Foundation 404.003 430.001 Gordon, A. UCLA 233.002 Gordon, B. The Johns Hopkins University School of 443.019 Greene, R. Oregon Health & Science University 414.046 Medicine,Department of Cognitive Science, The Greene, S. University of Texas Health Science Center at 403.004 Johns Hopkins University San Antonio Gordon, I. [email protected] 402.004 426.024 Greene, T. Simons Foundation 408.004 Bar-Ilan University 443.011 Grey, N. Sussex Partnership NHS Trust 218.001 Gordon, N. Marquette University 418.009 Grice, D. E. Icahn School of Medicine at Mount Sinai 302.003 Gordon, R. A. [email protected] 422.006 422.040 Griesi-Oliveira, K. Hospital Israelita Albert Einstein 407.001 Rush University Medical Center 422.052 Griffith, R. Optimal Clinical Trials 434.005 Goris, J. Ghent University 412.015 Grigaux, O. UC Irvine 427.020 Goshe, B. Mass General Hospital 422.051 Groenman, A. P. University of Amsterdam 401.021 401.046 Gosse, L. Centre for Brain and Cognitive Development, 308.003 401.094 411.008 Birkbeck University of London 414.051 Gotham, K. Vanderbilt University Medical Center 401.067 418.016 Groom, B. S. Mid State Health Network 442.004 429.009 441.003 Grosman, H. Seaver Autism Center, Department of 414.093 435.013 Gould, G. G. [email protected] 403.004 Psychiatry, Icahn School of Medicine at Mount 439.018 443.021 University of Texas Health Science Center at Sinai Hospital San Antonio Gross, C. Cincinnati Children’s Hospital Medical 406.018 Gowen, E. University of Manchester 412.011 412.013 Center,University of Cincinnati College of 443.012 Medicine Gozal, E. University of Louisville 404.006 Grossi, E. Villa Santa Maria Foundation 401.052 414.061 Gozzi, A. [email protected] 208.002 441.032 Functional Neuroimaging Lab, Centre for Grossman, E. The Graduate Center, CUNY 417.016 Neuroscience and Cognitive Systems Grossman, R. B. [email protected] 413.046 Graham, J. Newcastle University 305.003 Emerson College Graham Holmes, L. Boston University School of Public 222.001 222.003 Grosvenor, L. Johns Hopkins Bloomberg School of Public 419.014 Health,Hunter College, City University of New 222.004 301.001 Health York 401.085

167 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Grove, J. The Lundbeck Foundation Initiative 325.001 325.004 Gurnani, S. Boston University Medical Center 406.011 for Integrative Psychiatric Research, 424.001 Gurrin, S. University of Technology Sydney Autistic 422.058 iPSYCH,Aarhus University,Center for Genomics Advisory Board and Personalized Medicine, CGPM, and Center for Integrative Sequencing, iSEQ Gurtovenko, K. Seattle Children’s Hospital 427.030 Grove, M. L. The University of Texas Health Science Center 419.025 Guthrie, W. Children’s Hospital of Philadelphia 207.002 414.078 at Houston Gutierrez, A. DBMI - Harvard Medical School 437.005 Grove, R. University of Technology Sydney 312.004 422.058 Guy, L. [email protected] 401.084 441.054 UNC TEACCH Autism Program Grover, S. Dairy Microbiology Division, ICAR- National 423.003 Guy, M. Loyola University Chicago 435.008 Dairy Research Institute, Gynegrowski, K. Marist 423.012 Grzadzinski, R. University of North Carolina Chapel Hill 320.001 410.004 441.005 441.043 443.041 H Guan, S. Waseda University 427.008 Haak, K. Radboud University Medical Center Nijmegen, 434.004 Donders Institute for Brain, Cognition Guastella, A. J. Brain and Mind Centre, Children’s Hospital 434.005 and Behaviour, Department of Cognitive Westmead Clinical School, Faculty of Medicine Neuroscience and Health, University of Sydney Haapanen, L. University of California Davis 403.010 Gudbrandsen, M. Department of Forensic and 434.017 434.027 Neurodevelopmental Sciences, and the Sackler Haartsen, R. Birkbeck University of London 306.003 320.002 Institute for Translational Neurodevelopment, 429.026 Institute of Psychiatry, Psychology and Haas, E. Ministry of Health 414.088 Neuroscience, King’s College London Haas, K. Autism Spectrum Australia 401.044 Guedria, A. University of Monastir 401.020 Habayeb, S. I. [email protected] 228.001 422.022 Guerithault, N. Arizona State University 401.006 412.012 Catholic University of America Guerrero, L. Aut’Créatifs 401.088 425.007 Hadad, B. University of Haifa 401.051 425.045 Haddad, F. University of Western Ontario 403.001 Guest, K. C. The University of Alabama at Birmingham 439.005 441.007 441.052 Haendel, A. D. [email protected] 306.001 406.023 Guha Roy, S. Sangath 425.005 425.024 Concordia University Wisconsin 414.095 Haffey, A. University of Reading 434.011 Guhn, M. University of British Columbia 419.011 Haffner, G. William & Mary 443.004 Gui, A. Birkbeck University of London 306.003 404.005 Hafner, R. City, University of London 413.008 406.009 415.024 Guidotti, M. UMR 1253, iBrain, Université de Tours, 435.005 Hagiwara, T. Hokkaido University of Education, Asahikawa 414.035 Inserm,CHRU Tours,EXcellence Center in Hagon, J. University of Western Ontario 441.028 Autism and neurodevelopmental disorders Haidar, G. University of Washington 426.044 Guiducci, L. [email protected] 423.002 Haigh, S. University of Nevada, Reno 434.032 National Research Council Hakim, U. University College London 444.007 Guilhardi, C. Cintia Guilhardi ABA Services 442.006 442.047 Hale, M. University of Miami 414.007 418.005 Guillon, Q. University of Toulouse 427.025 Haley, M. Children’s Hospital of Philadelphia 443.008 Guillory, S. Seaver Autism Center for Research and 414.057 435.013 Halkola, H. King’s College London 415.024 Treatment, Department of Psychiatry, Icahn 439.014 439.018 Hall, G. University of Technology Sydney 401.064 422.058 School of Medicine at Mount Sinai Hospital 443.021 Hall, J. Simons Foundation 408.004 430.001 Gulati, S. [email protected] 327.003 406.005 All India Institute of Medical Sciences 406.006 411.002 Hall, J. Cardiff University 222.002 420.003 423.003 Hall, L. San Diego State University 213.004 401.022 425.001 425.015 425.016 446.022 Hall, L. [email protected] 439.010 University of Washington Gulsrud, A. UCLA Semel Institute for Neuroscience & 211.001 214.003 Human Behavior 415.016 422.071 Hall, M. National Assocaition of Children’s Hospitals 442.017 Gulzar ali, N. Aga Khan University 419.008 Hall-Bruce, M. Brain and Mind Institute, University of Western 411.003 Ontario Gunderson, J. University of Minnesota 441.043 Hall-Lande, J. [email protected] 321.003 422.002 Guney, E. STALICLA SL 303.004 327.004 University of MN

Guo, Y. Peking University Sixth Hospital 414.073 Hallett, S. Autistic Mutual Aid Society Edinburgh 401.015 Gupta, J. All India Institute of Medical Sciences, New 327.003 Hallett, V. South London and Maudsley NHS Foundation 427.012 Delhi Trust Gupta, N. All India Institute of Medical Sciences 406.005 Hallgren, J. Creighton University School of Medicine 403.009 Gurbuz, E. [email protected] 422.037 Halligan, T. A. Yale University School of Medicine 414.096 Durham University Hallmayer, J. Stanford University 302.004 319.004

168 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Halpern, D. Seaver Autism Center for Research and 414.057 414.093 Harrington, M. University of Michigan 213.003 Treatment, Department of Psychiatry, Icahn Harris, A. Boston University 312.001 406.003 School of Medicine at Mount Sinai Hospital 446.013 446.019 Ham, L. Roche 215.001 Harris, A. University of Calgary 434.029 Hamdan, O. The Hospital for Sick Children 310.001 Harris, B. [email protected] 414.052 Hamdani, Y. Centre for Addiction and Mental 401.107 University of Colorado Health,University of Toronto Harris, L. The Ohio State University 442.049 Hamilton, A. University College London 444.007 Harris, N. Vanderbilt University Medical Center 422.066 Hammerton, G. University of Bristol 429.015 Harris, S. Michigan Medicine 210.002 Hamner, T. Drexel University 308.001 Harrison, A. J. [email protected] 425.006 425.033 Hamodat, T. Dalhousie Univeristy 426.038 University of Georgia 442.018 Hampton, J. Washington University School of Medicine in 320.001 443.041 Harrison, L. A. University of Southern California 402.001 441.031 St. Louis Harrison, L. University of Manchester 427.040 Hamra, G. B. Johns Hopkins Bloomberg School of Public 419.005 419.006 Health 419.020 Harrison, R. Centre for Brain and Cognitive Development, 404.005 406.009 Birkbeck University of London Hamrick, L. Purdue University 414.096 Harrop, C. [email protected] 405.004 414.082 Han, B. Simons Foundation 408.004 430.001 University of North Carolina at Chapel Hill 437.015 Han, G. Peking University Sixth Hospital 414.087 Hartley, C. Lancaster University 413.005 Han, G. T. [email protected] 327.002 412.018 Hartley, D. [email protected] 310.001 Yale University School of Medicine 429.012 435.003 Autism Speaks Hand, B. N. The Ohio State University 328.002 442.007 Hartman, C. [email protected] 417.004 442.049 University Medical Center Groningen Handsman, R. Children’s National Hospital 422.019 422.053 Hartney, M. Boston Children’s Hospital 414.021 Hangauer, J. Johns Hopkins All Children’s Hospital 439.001 Haruvi Lamdan, N. [email protected] 429.038 Hanks, C. The Ohio State Unviersity Wexner Medical 328.002 442.007 Bar-Ilan University Center 442.049 Harvey, P. University of Miami 401.004 Hanley, G. University of British Columbia 419.011 Harvey, W. University of Washington 430.001 Hanley, M. Durham University 417.039 Haschek, A. La Trobe University,Cooperative Research 429.004 429.043 Hanlon, C. Addis Ababa University and King’s College 326.001 442.043 Centre for Living with Autism (Autism CRC) London Haskins, A. J. Dartmouth College 202.004 Hannah, K. E. [email protected] 411.003 413.056 University of Western Ontario Hastedt, I. Boston Children’s Hospital 411.013 Hannon, B. Cambridgeshire & Peterborough Foundation 414.105 Hastings, A. Children’s National Hospital 228.001 NHS Trust Hatem Pereira, A. FHEMIG 415.007 415.031 Hannon, E. University of Exeter 325.004 Hattangadi, N. Cortica Healthcare 404.007 Hansell, N. Queensland Brain Institute, The University of 423.010 Queensland Hauck, J. Michigan State University 427.031 441.047 Hansen, L. Children’s Mercy Kansas City 210.003 Hawks, Z. Washington University 307.002 Hansen, S. N. Aarhus University 309.002 Hayes, S. J. University College London 411.017 Hanson, E. [email protected] 414.022 441.026 Haynes, P. Mel and Enid Zuckerman College of Public 442.045 Boston Children’s Hospital/Harvard Medical Health, University of Arizona School Hayse, B. University of Missouri 418.006 Hanson, K. University of California Davis MIND Institute 403.014 Hayutin, L. University of Colorado Anschutz Medical 304.001 427.014 Hanson, T. University of Missouri-Columbia School of 442.013 Campus Medicine Hayward, H. L. Institute of Psychiatry, Psychology and 215.002 Hantman, R. [email protected] 441.033 Neuroscience, King’s College London Boston University Hayward, S. M. [email protected] 401.029 429.004 Happé, F. [email protected] 218.001 218.002 School of Health and Social Development, 429.043 Institute of Psychiatry, Psychology and 218.003 218.004 Deakin University Neuroscience, King’s College London 401.002 401.008 401.009 401.039 Hazlett, H. C. University of North Carolina 307.002 308.004 401.060 401.093 320.001 415.027 401.106 415.039 441.005 Hardan, A. Y. Stanford University 319.004 321.002 441.043 443.041 414.091 426.005 Harkins, C. University of Virginia 429.041 He, J. l. Institute of Psychiatry, Psychology and 217.003 307.004 Neuroscience 412.006 440.003 Harland, R. UC Berkeley 233.004

169 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract He, J. Michigan State University 316.002 Higgins, J. Cooperative Research Centre for Living 401.028 with Autism (Autism CRC),Department of 414.083 He, X. School of Medicine, Tsinghua University 406.026 Developmental Disability Neuropsychiatry, Healy, S. University of Deleware 401.108 UNSW Heath, B. The Medical Investigation of 208.003 414.101 Hightower, B. Massachusetts General Hospital 420.001 Neurodevelopmental Disorders (MIND) Institute, Hightshoe, K. University of Colorado Anschutz Medical 419.001 UC Davis School of Medicine, University of Campus California Davis Hildebrandt, E. Cortica Healthcare 404.007 Heck, O. Indiana University 427.021 Hill, M. M. [email protected] 415.034 Hedley, D. [email protected] 401.029 401.082 University of California, Davis, MIND Institute Olga Tennison Autism Research Centre, School 414.098 429.004 of Psychology and Public Health, La Trobe Hillier, A. University of Massachusetts Lowell 427.027 443.039 University Hegarty, J. P. Stanford University 319.004 406.002 Hills, K. University of South Carolina 414.094 Hilty, T. The University of Alabama at Birmingham 441.052 Helfer, B. Imperial College London 322.001 Hilvert, E. Loyola University 401.038 Hellemann, G. UCLA 322.002 443.025 Hine, J. F. Vanderbilt University Medical Center- Treatment 210.004 221.002 Hellings, J. A. [email protected] 416.001 428.001 and Research Institute for Autism Spectrum 308.002 University of Missouri Kansas City and Truman Disorder,Vanderbilt University Medical Center Behavioral Health Hipp, J. F. Pharma Research & Early Development, Roche 321.002 410.005 Hemingway, E. F. Durham University 417.039 Innovation Center Basel, F. Hoffmann-La 441.017 446.017 Roche AG Henders, A. Institute for Molecular Bioscience, The 423.010 University of Queensland Hirano, Y. Research Center for Child Mental Development 427.008 Chiba University Henderson, E. Duke University Medical Center 419.013 Hiratani, M. Hiratani Children’s Clinic 413.015 Henderson, K. Western University 441.039 Hirota, T. University of California, San Francisco (UCSF) 231.002 414.035 Henry, A. University of California at Davis 417.007 417.040

Hepburn, S. Colorado State University 415.021 Hirshman, A. Rush University Medical Center 413.033 Hérault, E. Université de Sherbrooke 401.016 Hirst, K. Thompson Center, University of Missouri 427.013 Hermann, C. University of Zululand 417.008 Ho, H. S. York University 225.002 Hernandez, A. University of Texas Health Science Center - 442.038 Ho, S. Zhongxing Branch of Taipei City Hospital 317.001 426.026 San Antonio Hoang, D. University of California, Davis 419.019 Hernandez, A. Texas State University 414.003 Hoang, N. The Hospital for Sick Children 310.001 310.002 Hernandez, N. UMR 1253, iBrain, Université de Tours, Inserm 435.005 Hoch, N. Clark University 228.002 Hernández Fabián, A. Hospital Clínico Universitario de Salamanca 436.003 Hochheimer, S. University of Rochester Medical Center 305.002 Heron, J. Population Health Sciences, Bristol Medical 401.013 School, Centre for Academic Mental Health Hock, R. University of South Carolina 418.003 422.042 Tech Kids Unlimited Herrell, J. 417.016 422.031 Hocking, D. R. [email protected] 446.011 422.037 Developmental Neuromotor & Cognition Lab, La Herrema, R. Cumbria, Northumberland, Tyne and Wear NHS 427.010 Trobe University Foundation Trust,Newcastle University Hoekstra, P. University Medical Center Groningen, University 417.004 427.019 Herrington, C. Vanderbilt University Medical Center 426.008 of Groningen Herrington, J. University of Pennsylvania 306.001 443.008 Hoekstra, R. A. King’s College London 312.004 326.001 444.009 425.036 441.054 Hertz-Picciotto, I. University of California at Davis 415.018 419.004 442.043 419.005 419.006 Hoekzema, K. University of Washington 430.002 419.016 419.022 Hoffkins, C. University of Rochester Medical Center 413.014 Hervás, A. Instituto Global de Atención al Neurodesarrollo 410.007 (IGAIN) Hogan, A. L. [email protected] 414.094 435.008 University of South Carolina 439.004 439.007 Herzog, M. University of Missouri 417.010 Hogan, A. University of Cincinnati College of Medicine 442.023 Heselton, G. Athabasca University 401.001 Holbrook, A. C. University of California, Los Angeles 312.003 410.004 Hessabi, M. The University of Texas Health Science Center 419.008 419.015 414.092 at Houston 419.025 Holem, R. University of Missouri 427.013 Hessels, R. S. Utrecht University 202.003 Holeva, V. Papageorgiou General Hospital 446.024 Heussler, H. The University of Queensland 423.010 434.005 Holingue, C. Kennedy Krieger Institute 413.043 423.009 Hewitson, L. The Johnson Center for Child Health and 422.016 Development Hollander, E. Albert Einstein College of Medicine, Psychiatric 321.002 441.011 Research Institute at Montefiore-Einstein Hick, S. Curtin University 429.029 Hollett, M. South London and Maudsley NHS Foundation 427.012 Higginbotham, E. The Hospital for Sick Children 310.001 Trust

170 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Hollingsworth, T. Nationwide Childrens Hospital 210.002 Hughes, M. Centers for Disease Control and Prevention 321.003 Hollocks, M. King’s College London 401.049 Huibers, M. Amsterdam Public Mental Health Research 232.003 Institute Holloway, J. National University of Ireland Galway 323.002 Huijsman, E. University Medical Center Utrecht 217.004 Holt, R. University of Cambridge 307.001 314.001 434.022 446.012 Hulen, J. Creighton University School of Medicine 403.009 Holt, T. San Diego State University 417.021 Hulick, A. T. Children’s Hospital of Philadelphia 443.008 Hong, J. Kennedy Krieger Institute,Johns Hopkins 423.009 Hull, L. University College London 414.105 University School of Medicine Hume, K. University of North Carolina at Chapel Hill 213.004 317.003 Hongo, M. Chiba University 427.008 401.022 417.014 Hooge, I. Utrecht University 202.003 427.028 427.039 Humm, L. SIMmersion, LLC 213.002 Hooker, J. Harvard Medical School,Massachusetts 420.001 General Hospital Humphreys, P. University of Manchester 407.003 Hopkin, R. Cincinnati Children’s Hospital Medical Center 429.020 442.001 Hunnius, S. Radboud University 413.006 435.002 Hunsche, M. [email protected] 443.044 Horack, J. Nationwide Children’s Hospital 414.075 University of British Columbia Horesh, D. Bar-Ilan University,Association for Children 429.038 Hunt, E. E. University of South Carolina 439.004 439.007 at Risk Hunter, S. Thompson Center, University of Missouri 418.006 427.013 Hossain, A. [email protected] 441.031 University of Southern California Huntjens, A. VU University 232.003 Hotson, K. [email protected] 401.102 Hurst, A. New York University 417.016 Nottingham Trent University Hurtig, T. University of Oulu and Oulu University Hospital 413.067 Hou, C. Stanford University 437.001 Hurwitz, S. [email protected] 427.021 Hovey, A. University of California, Los Angeles 443.032 Indiana University Howard, J. Duke Center for Autism and Brain Development 202.002 312.001 Husic, A. Stanford University 437.001 406.003 409.003 Huster, R. University of Oslo 411.009 446.013 446.019 Hutchinson, A. Children’s Hospital of Philadelphia 443.008 Howard, K. E. University of Alberta 417.013 Hutsler, J. J. University of Nevada, Reno 434.032 Howe, J. The Hospital for Sick Children 310.001 310.002 Hwang, J. Y. University of New South Wales 414.083 Howe, S. J. University of Calgary 422.054 429.011 Hyde, C. [email protected] 231.001 429.035 442.009 UCLA Medical Center Howerton, E. M. Johns Hopkins Bloomberg School of Public 310.003 325.003 Hydros, S. NIHR Maudsley Biomedical Research Centre 217.004 Health Hyvelin, J. STALICLA SA 303.004 Howlin, P. [email protected] 401.007 401.061 King’s College London I Hsiao, M. National Taiwan University Hospital,School of 426.018 426.045 Iadarola, S. University of Rochester Medical Center 214.003 305.002 Occupational Therapy, College of Medicine, National Taiwan University Iampieri, A. Towson University 417.031 Hsieh, M. National Taiwan University Hospital 401.032 Iannaccone, C. University of Trento 414.071 Hu, X. University of Missouri 414.106 Iannuzzi, D. MassGeneral Hospital 422.051 442.017 Huang, M. Affiliated Shenzhen Maternity & Child 414.097 436.001 Iao, L. Department of Psychology, Nottingham Trent 418.012 Healthcare Hospital University Huang, Q. King’s College London 217.002 Iarocci, G. Simon Fraser University 315.004 411.018 413.047 441.030 Huang, T. National Taiwan University 446.009 442.037 443.042 Huang, Y. Department of Medicine, MacKay Medical 426.034 Ibanez, L. V. UW READi Lab 214.001 414.040 College,MacKay Memorial Hospital 442.032 Huang, Y. Cooperative Research Centre for Living 309.004 414.083 Ibáñez Jiménez, P. Hospital Universitari Vall d’Hebron 429.013 429.036 with Autism (Autism CRC),Department of Ibarra, C. San Diego State University 415.040 Developmental Disability Neuropsychiatry, UNSW Ibrahim, A. McGill University 228.003 Huaracha, D. N. Harvard College,Boston Children’s Hospital 415.022 Ibrahim, K. Yale University School of Medicine 306.002 Hudac, C. M. [email protected] 406.014 408.003 Ibrahim, S. Aga Khan University 419.008 University of Alabama 439.010 443.018 Ide, M. [email protected] 401.027 412.002 Hudock, R. [email protected] 427.038 Research Institute of National Rehabilitation University of Minnesota Center for Persons with Disabilities Hudry, K. La Trobe University 414.054 426.021 Igliozzi, R. IRCCS Stella Maris Foundation 415.023 Hugh, M. University of Washington 425.032 Ijalba, E. [email protected] 413.042 Queens College, CUNY Hughes, C. National Autistic Society 442.022

171 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Ilan, M. Ben-Gurion University of the Negev 414.013 426.046 James, K. King’s College London 414.027 Ilias, K. Universiti Teknologi MARA 425.030 425.039 Janecka, M. The Lundbeck Foundation Initiative for 325.004 Integrative Psychiatric Research, iPSYCH,Icahn Ilioska, I. I. Donders Institute for Brain, Cognition and 215.004 434.001 School of Medicine at Mount Sinai Hospital Behaviour Janes, A. Harvard Medical School & McLean Hospital 434.005 Ilyes, E. Graduate Center; CUNY 422.031 Jarcho, J. Temple University 435.001 Inge, A. Children’s National Hospital 228.001 Jarus, T. UBC 417.034 Ingersoll, B. Michigan State University 413.034 422.049 441.019 442.004 Jassim, N. University of Cambridge 411.019 446.018 Jaswal, V. University of Virginia 418.017 422.030 Ingham, B. Northumberland Tyne and Wear NHS 318.003 418.014 443.047 443.056 Foundation Trust 427.002 427.007 Jatkar, A. [email protected] 401.102 429.017 429.044 University of North Carolina 442.042 Iosif, A. University of California Davis 208.003 313.003 Jayashankar, A. University of Southern California 441.031 401.004 403.014 Jeanneret, N. CIUSSS Nord-de-l’Île-de-Montréal,Université du 401.088 425.007 415.034 419.016 Québec à Montréal 425.045 419.020 443.052 Jeckel, O. University of Missouri 414.037 Ip, A. University of British Columbia 419.011 Jenaro, C. [email protected] 427.025 iPSYCH ASD Working N/A 424.001 University of Salamanca Group, T. Iqbal, R. Boston Children’s Hospital 402.002 Jensen, J. California State University Northridge 401.023 Ireland, R. Kaiser Permanente 437.008 Jequier Gygax, M. Lausanne University Hospital 441.045 Irevolino, A. Universidad de la Republica 425.009 Jeste, S. S. University of California, Los Angeles 202.001 231.001 319.001 322.002 Irshad, G. [email protected] 426.012 409.002 414.062 Montclair State University 435.009 435.014 Isaev, D. Y. Duke Center for Autism and Brain Development 406.001 446.002 435.015 443.025

Isaksson, J. Karolinska Institutet 320.003 Jevtic, A. University of California, Santa Barbara 426.013 426.031 Iskrov, G. [email protected] 427.025 Jichici, B. Brock University 401.077 Institute for Rare Diseases Jilderda, S. [email protected] 426.003 Israeli, D. Kaplan Medical Center,Hebrew University of 405.005 Sickkids Hospital for Sick Children Jerusalem Jimenez, T. Rose F. Kennedy Center, Children’s Evaluation 427.022 Isralowitz, E. University of Southern California 441.010 and Rehabilitation Center; Montefiore Medical Center J Jimenez Munoz, M. University of California Santa Barbara 442.033 442.035 J. Satheesh, N. Qatar Biomedical Research Institute (QBRI), 431.002 HBKU, Qatar Foundation Jimenez-Espinoza, C. D. University of La Laguna 433.001 Jachyra, P. Centre for Addiction and Mental Health 429.002 Jin, X. Harvard University 223.003 Jacob, P. National Institute of Mental Health and Neuro 422.056 Jo, B. Department of Psychiatry and Behavioral 414.091 Sciences (NIMHANS), Bangalore Sciences, Stanford University, Stanford, CA Jacobson, M. Oregon Health & Science University 206.003 Job Said, A. [email protected] 401.033 The George Washington University Jacques, C. Autism Research Group, CIUSSS du Nord- 422.068 441.023 de-l ’Île-de-Montréal,University of Quebec in 443.055 Joergensen, M. Special Area Autism,Aarhus Unirversity 401.075 Outaouais Hospital, Psychiatry Jadav, N. Rutgers University-New Brunswick 413.048 John, R. UCD MIND Institute 422.015 Jagadapillai, R. University of Louisville 404.006 JohnKlein, C. Rutgers University-New Brunswick 413.048 Jager-Hyman, S. University of Pennsylvania 232.004 Johnson, A. R. University of California, Los Angeles 422.017 429.003 Jain, R. Maulana Azad Medical College and Lok Nayak 426.006 Johnson, B. Cortica Healthcare 404.007 Hospital Johnson, J. University of Michigan 213.003 Jain, V. All India Institute of Medical Sciences 406.005 Johnson, K. A. [email protected] 411.005 Jaini, R. Comprehensive Cancer Center, Case 316.003 University of Melbourne Western Reserve University School of Johnson, M. Yale University School of Medicine 441.024 Medicine,Cleveland Clinic Lerner Research Johnson, M. University of Cambridge 215.001 320.002 Institute 406.009 406.017 Jalali, N. DBMI - Harvard Medical School 437.005 414.054 415.001 James, C. Indiana University School of Medicine 414.080 425.040 429.026 441.025 James, J. Southwest Autism Research & Resource 414.036 Center

172 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Johnson, M. [email protected] 306.003 308.003 Kaale, A. Oslo University Hospital,University of Oslo 411.009 413.018 Birkbeck, University of London 404.005 415.009 413.041 426.009 415.024 415.025 Kaat, A. Northwestern University 410.003 414.028 425.016 Johnson, M. Cortica Healthcare 404.007 Kabourek, S. NORC at the University of Chicago 410.006 Johnson, M. Personalised Health Care, F. Hoffmann-La 414.029 Kaburlasos, V. International Hellenic University 446.024 Roche Ltd Kadlaskar, G. University of California, Davis, MIND Institute 415.015 435.007 Johnson, M. Goyt Valley Medical Practice 401.062 Kaedbey, M. McGill Unversity 411.016 443.038 Johnston, E. Center for Autism Research Excellence 413.017 413.052 Kaguelidou, F. Institut Pasteur 217.004 Johri, S. Sangath 425.015 425.024 Kahathuduwa, C. N. Texas Tech University 405.001 Jones, A. HEALTHY AFRICAN AMERICAN FAMILIES 422.075 Kaijadoe, S. Karakter Child and Adolescent Psychiatry 414.063 426.030 Jones, D. University of Texas at Dallas 235.003 443.006 University Center Jones, E. Centre for Brain and Cognitive Development, 215.001 215.002 Kakra, M. Sangath 425.001 425.015 Birkbeck, University of London 215.003 217.004 425.024 306.003 308.003 Kala, S. Yale University School of Medicine 440.005 320.002 404.005 Kalb, L. Kennedy Krieger Institute,Johns Hopkins 401.059 406.009 406.017 University 414.054 415.001 415.009 415.024 Kalb, L. Johns Hopkins Bloomberg School of Public 413.043 423.009 415.025 425.040 Health 429.026 432.001 Kaller, M. University of Oxford 403.011 441.017 441.025 Kallitsounaki, A. University of Kent 401.025 Jones, F. [email protected] 410.006 422.008 Healthy African American Families 422.075 Kalomiris, A. Cincinnati Children’s Hospital Medical Center 210.002 Jones, H. Population Health Sciences, Bristol Medical 423.004 424.001 Kalvin, C. Yale University 306.002 School, Centre for Academic Mental Health 429.015 Kamal, K. Argus Cognitive, Inc. 446.014 Jones, K. Heriot-Watt University 443.009 Kamal, M. Sidra Medicine 406.007 Jones, L. University of Manchester 412.011 Kamila, G. All India Institute of Medical Sciences, New 327.003 Jones, W. Emory University 304.002 324.003 Delhi 403.005 406.013 Kaminer, I. E. Drexel University 401.037 401.079 406.015 415.013 415.028 415.033 Kamm, G. The University of Melbourne 411.015 415.035 415.036 Kan, D. University of North Carolina at Chapel Hill 417.014 434.030 444.006 Kana, R. University of Alabama,Center for Innovative 401.073 434.013 Jones Bartoli, A. Goldsmiths, University of London 417.002 Research in Autism 434.016 Jonesteller, T. Yerkes National Primate Research Center, 403.005 Kanellopoulos, A. University of Lausanne 403.016 Emory University Kang, E. [email protected] 402.005 427.011 Jordan, R. Yale Child Study Center 306.002 Montclair State University Jorgenson, C. University of Missouri 418.006 Kang, V. Y. University of Illinois at Chicago 429.018 Joseph, L. National Institute of Mental Health 607.002 Kang, X. The Chinese University of Hong Kong 413.001 Joyce, E. [email protected] 419.004 Kang, Y. National University Hospital 422.046 Drexel University Kanne, S. Thompson Center for Autism & 231.002 427.013 Juárez, P. Vanderbilt University Medical Center- Treatment 221.002 308.002 Neurodevelopmental Disorders and Research Institute for Autism Spectrum 426.008 438.001 Disorder Kaplan-Kahn, E. A. Syracuse University 435.010 441.048 444.009 Judge, H. National Autistic Society 326.004 417.002 Kapp, S. K. University of Portsmouth 422.031 422.072 417.036 442.022 Karadag, E. Akdeniz University Faculty of Education 441.012 Juneja, M. Maulana Azad Medical College 425.001 425.015 Karaminis, T. Edge Hill University 414.089 414.090 426.006 437.009 Karim, D. Rutgers University 412.007 Jung, J. [email protected] 319.001 414.058 University of California, Los Angeles 440.006 440.007 Karim, F. Aga Khan University 419.008 Karin, E. Bar - Ilan University 443.036 Junge, C. Utrecht University 413.006 Karpur, A. [email protected] 419.027 422.044 Junod, V. Lausanne University Hospital 441.045 Autism Speaks Jurado Luque, M. Hospital Universitari Vall d’Hebron 429.036 Jutla, A. New York State Psychiatric Institute / Columbia 318.002 University Jyotishi, M. Applied Survey Research 413.024 K

173 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Kasari, C. University of California, Los Angeles 211.001 214.002 Kennedy, B. S. Boston Children’s Hospital 437.012 214.003 305.002 Kennedy, D. [email protected] 415.030 415.032 410.006 414.017 Indiana University 434.010 443.051 414.023 415.016 417.017 417.019 Kenny, L. [email protected] 409.001 422.012 422.071 426.001 Centre for Research in Autism and Education 442.021 426.032 426.042 (CRAE) 443.032 Kenny, R. University of Cambridge 232.001 Kashy, D. Michigan State University 442.004 Kent, J. Stanford University 437.001 Kassee, C. University of Toronto,Centre for Addiction and 401.107 Kenworthy, L. Children’s National Hospital 414.014 422.019 Mental Health 422.021 422.053 Kasten, E. Michigan State University 401.045 Kenyeres, N. HelpScout Canada 401.077 Kataoka, L. Santa Casa de São Paulo School of Medical 429.037 Kepple, C. Florida State University 417.001 417.011 Sciences Kataoka, S. University of California, Los Angeles 305.002 410.006 Kerasidou, M. Papageorgiou General Hospital 446.024 Katiyar, A. Indian Council Of Medical Research, New 420.003 Kerkhof, A. Amsterdam Public Mental Health Research 232.003 Delhi, India Institute Katz, M. The New Jersey Autism Center of Excellence 426.043 Kernohan, A. Newcastle University 410.002 414.009 422.062 Katz, T. University of Colorado School of Medicine 429.028 Kerns, C. M. University of British Columbia 313.001 313.002 Kauffman, E. Drexel University 419.022 422.023 422.027 Kaur, S. University of Calgary 434.029 422.054 434.006 442.009 442.029 Kaur, S. All India Institute of medical sciences, New 411.002 443.044 Delhi, India Kerub, O. Ben-Gurion University, Ministry of Health 414.088 Kaushik, A. NIHR Maudsley Biomedical Research Centre 217.004 Ketcheson, L. Wayne State University 437.003 441.050 Kawa, R. University of Warsaw 427.025 Key, A. [email protected] 418.021 Kawashima, H. La Trobe University 414.098 Vanderbilt University Medical Center Kawashima, M. Institute of Neuropsychiatry, Seiwa Hospital 231.002 Kezuka, E. Gunma Prefectural Women’s University 414.098 Kay, D. Brigham Young University 401.092 414.032 Khan, A. Weill Cornell Medicine-Q 406.007 Keating, C. University of Birmingham 418.026 Khan, S. N. [email protected] 420.003 Kechayas, P. Papageorgiou General Hospital 446.024 All India Institute of Medical Sciences, New Delhi Keehn, B. [email protected] 435.007 Purdue University Khan, S. All India Institute of Medical Sciences, New 327.003 Delhi Kehinde, O. A. [email protected] 417.008 University of Zululand Khandaker, G. University of Cambridge 423.004 424.001 Keifer, C. M. Stony Brook University 435.001 Khawar, S. Montclair State University 426.012 427.011 Keles, U. California Institute of Technology 434.010 443.051 Kiafar, A. McGill University 228.003 Kellam, B. The Hospital for Sick Children 310.001 Kiefer, S. Southwest Autism Research & Resource 414.036 Center Kelleher, B. Purdue University 414.096 419.009 422.001 439.013 Kiffmeyer, E. Augustana University 403.015 439.017 Kiing, J. National University Hospital 422.046 Keller, K. Seaver Autism Center 435.013 Kilchenmann, T. Roche Pharma Research and Early 446.017 439.014 Development. Roche Innovation Center Basel, 439.018 Hoffmann-La Roche 443.021 Kelley, E. A. Queen’s University 413.027 Kilroy, E. University of Southern California 441.031 429.005 Kim, A. Vanderbilt University Medical Center 406.010 443.020 434.014 Kim, H. University of California San Francisco 231.002 419.030 441.020 441.041 Kim, H. Harvard T.H. Chan School of Public Health 419.030 441.044 Kim, I. Tulane University 425.017 Kello, C. University of California Merced 413.025 Kim, J. G. Georgia Institute of Technology 417.022 446.023 Kelly, K. [email protected] 308.001 414.053 Kim, S. Center for Autism and the Developing Brain 211.002 226.004 Drexel University 443.048 231.002 312.003 Kelly, L. Augustana University 403.015 317.002 410.004 Kelly, S. University of Kansas 227.004 414.053 411.007 413.017 443.048 413.059 414.042 Kelso, N. University of Maryland, College Park 422.033 418.011 Kim, S. Duksung Women’s University 235.004 413.003 Kempner Mishkin, I. Bar Ilan University 417.024 Kendall, P. Temple University 443.044 Kim, S. Seattle Childrens 418.002

174 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Kim, Y. Purdue University 435.007 Klusek, J. [email protected] 439.004 University of South Carolina Kim, Y. University of California, San Francisco 231.002 419.030 Knapp, M. LSE 422.035 427.012 Kim, Y. Yonsei University 235.004 Knight, E. University of Rochester Medical Center 440.001 Kim, Z. Department of Child and Adolescent Psychiatry, 409.004 Psychosomatics and Psychotherapy, University 414.100 Knight, L. Duke University Medical Center 419.013 Hospital Frankfurt, Goethe University Knott, C. E. University of South Carolina 414.094 Kimber, S. University of Manchester 407.003 Knox, R. Queen’s University Belfast 436.004 Kimhi, Y. [email protected] 417.024 Ko, J. A. [email protected] 415.019 Levinsky College of Education,Bar Ilan San Diego State University 446.006 University Kodakkadan, F. M. Anglia Ruskin University 425.002 Kinfe, M. Addis Ababa University 326.001 Kodesh, A. University of Haifa 309.002 King, B. H. UCSF 418.002 Koenig, K. P. New York University 323.003 417.028 King, J. B. University of Utah 434.012 434.018 443.037 King, S. Boston Medical Center 314.004 Kofner, B. CUNY 422.031 422.037 Kingsbury, C. Utah Department of Health 321.003 422.072 425.018 425.033 University of Utah College of Health Kirby, A. V. 321.003 Koh, M. Massachusetts general hospital 414.031 University of Miami Kircher, L. 434.003 Koh, Y. The Korea Institute for Children’s Social 419.030 Kirk, H. Monash University 425.030 Development, Rudolph Child Research Center Kishore, T. National Institute of Mental Health and Neuro 422.056 Kohane, I. DBMI - Harvard Medical School 437.005 Sciences (NIMHANS), Bangalore Köhler, J. LMU Munich 229.003 University of Wisconsin-Madison Kissel, L. 208.001 Kohli, J. S. SDSU/UC San Diego,San Diego State 415.040 434.015 Kissine, M. Université libre de Bruxelles 419.018 443.014 University Koirala, S. Emory University School of Medicine, Marcus 324.003 406.013 Kitzerow, J. Department of Child and Adolescent Psychiatry, 409.004 414.100 Autism Center 415.028 444.006 Psychosomatics and Psychotherapy, University Hospital Frankfurt, Goethe University Kojovic, N. K. UNIGE 444.002 University of Uppsala Kjellson, M. 321.002 Kok, R. Erasmus University Rotterdam 443.001 Children’s Healthcare of Atlanta and Emory Klaiman, C. 324.003 406.015 Kolevzon, A. Seaver Autism Center for Research and 414.057 414.093 University School of Medicine 414.018 414.019 Treatment, Department of Psychiatry, Icahn 418.002 435.013 415.013 415.014 School of Medicine at Mount Sinai Hospital 439.014 439.018 415.033 415.035 429.031 439.011 Koller, J. [email protected] 419.021 422.003 442.027 Hebrew University of Jerusalem 426.019 Kleber, S. Department of Child and Adolescent Psychiatry, 414.100 Kollins, S. Duke ADHD Program, Duke University Medical 312.001 406.003 Psychosomatics and Psychotherapy, University Center 406.012 409.003 Hospital Frankfurt, Goethe University 418.002 419.013 Kleberg, J. Karolinska institutet 439.015 443.003 446.002 446.013 446.019 University of Pittsburgh School of Medicine Klei, L. 205.004 Kommu, J. National Institute of Mental Health and Neuro 422.056 Klein, C. Department of Child and Adolescent Psychiatry, 322.001 411.014 Sciences (NIMHANS), Bangalore University of Freiburg Komorowski, R. Biogen 209.005 Klein, C. B. [email protected] 317.002 401.042 Konak, L. Iona College 425.023 University of North Carolina 401.066 Kong, L. Penn State College of Medicine 414.069 Kleinhans, N. University of Washington 322.002 409.002 435.009 435.014 Kong, M. University of Louisville 422.018 435.015 443.025 Kong, X. Massachusetts General Hospital 414.031 414.097 Kooy, F. University of Antwerp 430.002 Klemencic, M. Vanderbilt University Medical Center 429.022 Kopec, J. [email protected] 441.048 Kliemann, D. University of Iowa 434.010 443.051 Syracuse University Klin, A. Marcus Autism Center, Children’s Healthcare 324.003 406.013 Korczak, D. Hospital for Sick Children 231.002 of Atlanta and Emory University School of 406.015 415.013 Medicine 415.014 415.028 Korhonen, V. K. Autism Foundation Finland 447.005 415.033 415.035 Korisky, A. Bar-Ilan University 402.004 415.036 434.030 Korkontzelos, Y. Edge Hill University 414.089 414.090 442.027 444.006 Kline, A. Stanford University 437.001 Koukos, E. Wake Forest Institute for Regenerative 423.008 Klinger, L. G. [email protected] 401.042 401.066 Medicine University of North Carolina 442.034 Kovacs Balint, Z. Emory University 403.005 Kloetzer, J. University of North Carolina - Chapel Hill 401.045 Kloth, A. D. Augustana University 403.015

175 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Koziel, J. Department of Forensic and 226.001 412.006 Kuzminski, R. Cooperative Research Centre for Living with 311.003 Neurodevelopmental Sciences, Institute of Autism Psychiatry, Psychology and Neuroscience, Kyaga, S. Servier 410.001 410.007 King’s College London Kraemer, B. San Diego State University 213.001 213.004 Krajmalnik-Brown, R. Arizona State University 212.004 212.005 Kral, T. V. University of Pennsylvania School of Nursing 414.055 419.026 419.029 Kramer, J. University of Bath 441.009 Krause, L. Microba Life Sciences 423.010 Kremer, K. University of Minnesota 427.038 Kresse, A. Seattle Children’s Research Institute 413.049 429.018 Kreun, E. University of California Davis 403.010 Krigsman, A. Pediatric Gastroenterology Resources of New 423.006 423.007 York and Texas 423.008 Krishnamurthy, V. Ummeed Child Development Center 328.004 Krishnan-Barman, S. University College London 444.007 Krishnappa Babu, P. Duke University 207.003 312.001 406.003 446.013 446.019 Krol, M. A. [email protected] 226.001 306.004 Boston University,Radboudumc Krueger, W. Marquette University 306.001 406.023 Krug, M. K. UC Davis MIND Institute 401.004 443.052 Kryszak, E. Nationwide Chidlren’s Hospital 210.002 Kuan, T. York University 225.003 Kuhlthau, K. Massachusetts General Hospital 422.051 427.020 442.017 Kumagaya, S. The University of Tokyo 401.089 Kumar, A. South London and Maudsley NHS foundation 218.004 trust; King’s College London Kumar, D. Stanford University 434.026 Kumar, D. Sangath 425.001 425.015 425.024 Kumar, R. Wake Forest Institute for Regenerative 423.008 Medicine Kumar, R. DBMI - Harvard Medical School 437.005 Kun, X. Central South University 430.002 Kuo, H. University of Wisconsin Madison 401.043 Kuo, H. Michigan State University 401.050 Kuo, S. S. Broad Institute of MIT and 205.003 309.003 Harvard,Massachusetts General Hospital 441.013 Kupis, L. University of Miami 419.028 434.003 Kuravackel, G. M. University of Louisville School of Medicine 422.018 443.029 446.016 Kurtz-Nelson, E. [email protected] 408.003 439.003 University of Washington 439.006 Kuschner, E. S. Children’s Hospital of Philadelphia 429.031 Kushan, L. Semel Institute for Neuroscience and Human 434.027 Behavior and Department of Psychology, University of California-Los Angeles Kushki, A. Bloorview Research Institute 226.003 413.027 415.005 418.013 418.022 Kushner, E. H. Emory University, Marcus Autism Center 324.003 406.013 415.028 Kusi-Mensah, K. Komfo Anokye Teaching Hospital 422.026 Kuwabara, H. University of Tokyo Hospital 427.008

176 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Laor, N. Tel-Aviv University,Association for Children 429.038 L at Risk La Valle, C. Boston University,Center for Autism Research 413.017 413.031 Larkin, C. Queensland Children’s Hospital 434.005 Excellence 413.052 414.044 Larroulet, A. Socializarte 425.003

Labonté, C. [email protected] 417.013 Larsen, K. Oslo University Hospital 426.009 University of Alberta Larson, L. NC State 324.001 437.011 Labus, M. Research and Enterprise Services, Faculty of 410.002 414.009 Medical Sciences, Newcastle University 422.062 Latinus, M. UMR 1253, iBrain, Université de Tours, Inserm 406.027 LaCava, P. Rhode Island College 417.003 Lau, B. K. University of Washington 413.035 Lacroix, A. LPNC, Univ. Grenoble Alpes, Univ. Savoie 436.005 Lau, J. Northwestern University 413.001 Mont Blanc, CNRS Laugeson, E. A. [email protected] 401.101 426.035 Ladd-Acosta, C. Johns Hopkins Bloomberg School of Public 310.003 325.003 UCLA Semel Institute for Neuroscience and 426.036 427.015 Health Human Behavior 427.016 427.024 Lai, B. South China Normal University 406.019 415.006 Lavanderos, A. M. Vanderbilt University Medical Center 422.066 425.011 Lavery, K. Texas State University 442.005 Lai, M. University of Cambridge 208.004 231.002 Law, J. [email protected] 231.004 401.026 303.001 320.002 Kennedy Krieger Institute 401.072 401.107 429.002 434.017 Lawley, G. O. Oregon Health & Science University 413.019 413.028 Lainhart, J. University of Wisconsin - Madison 434.012 434.018 Lawlor, M. C. USC 422.005 Lawrence, K. E. University of California, Los Angeles 102.003 Lakhera, S. Sangath 425.005 425.024 Lawson, L. [email protected] 414.083 415.012 Lalani, L. Boston Children’s Hospital 406.011 La Trobe University,Cooperative Research 429.004 429.043 Centre for Living with Autism (Autism CRC) Lall, G. Sangath 425.015 425.024 Lawson, W. Curtin University,Cooperative Research Centre 311.003 401.041 Lalli, M. Icahn School of Medicine at Mount Sinai 223.001 for Living with Autism (Autism CRC) 401.064 Lam, G. [email protected] 414.002 425.018 Lax, L. CARES 426.012 University of South Florida Layton, C. F. [email protected] 414.057 415.037 Lamarche, E. UNC TEACCH Autism Program 401.084 442.034 Seaver Autism Center for Research and 435.013 443.021 Treatment, Department of Psychiatry, Icahn Lamas, G. Centro Hospitalario Pereira Rossell 420.002 School of Medicine at Mount Sinai Hospital Lamash, L. [email protected] 443.010 Lazaro, M. CIBERSAM 217.004 University of Haifa Lazzeroni, L. Stanford University 319.004 Lambert, E. Servier 410.001 Le, C. Texas State University 414.003 Lambert, R. University of California, Santa Barbara 417.030 Le, I. University of California, Davis MIND Institute 446.008 Lambie, J. Anglia Ruskin University 425.002 Leadbitter, K. University of Manchester 414.027 427.040 Lambrechts, A. [email protected] 413.008 422.036 City, University of London Leaman, S. King’s College London 217.002 Lamoureux, S. The Hospital for Sick Children 310.001 Leano, J. Center for Autism Research Excellence 306.004 413.052 Lampi, A. J. University of Virginia 418.017 422.030 Leavitt, D. Wake Forest University 407.002 443.047 Leblanc, E. Stanford University 437.001 Lampinen, L. University of California, San Francisco 401.083 Leblond, C. Institut PASTEUR 215.001 215.003 Lamy, M. Cincinnati Children’s Hospital Medical Center 429.006 429.020 445.001 442.001 442.023 Lebowitz, E. Yale School of Medicine 422.003 Landa, R. Kennedy Krieger Institute 201.001 413.043 Lecavalier, L. Ohio State University 437.015 415.018 423.009 Landau, E. J. Northwestern University 413.001 Lechniak, H. Rush University Medical Center 443.053 Lane, E. University of California San Diego,Child and 437.008 LeCouteur, A. Newcastle University 318.003 427.002 Adolescent Services Research Center 429.017 429.044 442.042 Lane, R. Children’s Hospital of Philadelphia 422.041 Lecusay, D. [email protected] 401.058 Lane, S. Purdue University 439.017 University of Texas Rio Grande Valley Lange, N. McLean Hospital 434.012 434.018 Ledoux, M. University of California, Riverside 425.031 Langer, A. University of Pennsylvania 401.054 430.003 Ledsham, V. University of Edinburgh 415.011 Langerak, I. Karakter, kinder-en jeugdpsychiatrie 414.063 Lee, A. University of Washington 413.035 Langhorne, S. [email protected] 401.102 427.040 Lee, C. E. Vanderbilt University Medical Center 417.022 446.023 University of Manchester Lee, D. University of Edinburgh 441.004 Lanphear, B. Simon Fraser University 419.006 Lee, E. Anglia Ruskin University 425.002

177 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Lee, H. University of Southern California 414.039 Lerman, B. Icahn School of Medicine at Mount Sinai 435.013 439.014 439.018 Lee, H. University of California, Los Angeles 214.003 Lerner, J. E. UCLA Semel Institute for Neuroscience and 401.101 427.024 Lee, H. Lerner Research Institute 302.002 Human Behavior Lee, J. D. [email protected] 425.019 Lerner, M. D. [email protected] 402.005 402.006 University of Illinois Stony Brook University 427.011 429.023 Lee, J. Georgia State University 422.061 435.001 443.015 443.049 Lee, J. K. [email protected] 208.003 429.034 Leung, M. The Hong Kong Polytechnic University 413.022 413.057 The Medical Investigation of 434.006 434.021 Neurodevelopmental Disorders (MIND) Institute, Leuzzi, M. Children’s Hospital of Philadelphia 443.008 UC Davis School of Medicine, University of Levato, L. University of Rochester Medical Center 305.002 410.006 California Davis Leventhal, B. University of California San Francisco 231.002 419.030 Lee, L. Duke Center for Autism and Brain Development 409.003 Lever, A. University of Amsterdam 411.008 Lee, L. Johns Hopkins Bloomberg School of Public 321.003 Health Levi, L. The Hebrew University of Jerusalem 426.019 Lee, N. Drexel University 301.003 401.031 Levin, A. R. Boston Children’s Hospital 202.001 435.009 401.079 413.062 435.014 Lee, Q. UC Davis Neuroscience Graduate Group 429.034 Levine, S. University of Haifa 309.002 Lee, S. Ewha woman’s Univ. 426.016 Levinson, H. Rutgers University 412.007 Lee, S. Heriot-Watt University 429.008 Levy, G. SocialMind Ltd. 447.006 Leech, R. Imperial College London 226.001 Levy, S. E. Center for Autism Research, Children’s Hospital 401.045 429.028 of Philadelphia; Perelman School of Medicine at Newcastle University Lees, R. 427.007 the University of Pennsylvania AP-HP, Robert-Debré Hospital, Child and 226.001 Lefebvre, A. Levy, T. Icahn School of Medicine at Mount Sinai 414.057 414.093 adolescent Psychiatry unit Hospital 435.013 439.014 Lehman, C. W. Simons Foundation 231.004 401.026 439.018 401.072 Lewis, L. F. University of Vermont 401.053 Marquette University Lehman, S. 418.009 Lewis, M. University of British Columbia 310.001 [email protected] 413.012 413.045 Lehnert-LeHouillier, H. Lewkowicz, D. Child Study Center, Yale University School of 322.003 New Mexico State University Medicine University Hospital Cologne Lehnhardt, F. 418.010 Li, A. Massachusetts General Hospital 414.097 [email protected] 427.037 Leifler, E. Li, J. University of California, Davis 305.002 KIND Karolinska Institutet Center of Neurodevelopmental Disorders Li, L. Marcus Autism Center, Children’s Healthcare of 403.005 434.030 Atlanta, Emory University 444.006 Leinonen, E. Murdoch University 413.067 Li, M. Renyu School for Children with Special Needs 425.027 Lemaitre, H. Inserm U1000, institut Imagine, Université 443.033 Paris Sud Li, N. South China Normal University 406.019 415.006 Lemelman, A. R. Center for Autism and the Developing Brain 317.002 Li, S. [email protected] 411.005 University of Melbourne Lemler, C. Department of Child and Adolescent Psychiatry, 414.100 Psychosomatics and Psychotherapy, University Li, S. National Taiwan University Hospital 426.018 426.045 Hospital Frankfurt, Goethe University Li, S. Foshan Chancheng Central Hospital 406.019 415.006 Lemonnier, E. centre expert autisme du limousin, CHU de 410.001 Li, X. University of Chinese Academy of 414.056 414.073 limoges Sciences,Chinese Academy of Sciences Lennuyeux-Comnene, L. City, University of London 418.024 Li, X. National Clinical Research Center for Mental 411.006 414.072 Lenroot, R. University of New Mexico 446.011 Disorders 414.087 Lense, M. Vanderbilt University Medical Center 304.002 413.025 Libsack, E. J. Stony Brook University 429.018 443.049 422.043 Libster, N. University of California, Los Angeles 417.038 443.032 Leon Attia, O. Sheba Medical Center 405.002 Licari, M. [email protected] 227.001 Leon Lua, A. Duke University Medical Center 419.013 University of Western Australia Leonard, H. Telethon Kids Institute 309.002 Licona, S. Rush University Medical Center 443.053 446.014 Leong, D. Disabled People’s Association 401.019 Ligneul, C. University of Oxford 403.011 Leosdottir, T. State Diagnostic and Counselling Centre 427.025 Lilley, R. [email protected] 401.064 Leppert, B. Population Health Sciences, Bristol Medical 424.001 Macquarie University School, MRC Integrative Epidemiology Unit Lillian, A. American University 412.016 Lepping, R. University of Kansas 227.004 Lim, E. T. [email protected] 425.022 Lerch, J. The Hospital for Sick Children,Wellcome Centre 226.003 233.001 National University of Singapore for Integrative Neuroimaging (WIN), University 302.003 319.003 Lim, T. National University Hospital 422.046 of Oxford,University of Toronto 403.011 434.014 Limon, D. L. Brigham Young University 418.027 421.001

178 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Limperopoulos, C. Children’s National Health System 219.002 Logemann, A. Institute of Psychology, ELTE Eötvös Loránd 436.005 University Lin, B. Kaiser Permanente Southern California 437.008 Lograsso, Y. UCLA Semel Institute for Neuroscience and 401.101 427.016 Lin, F. ALSOLIFE 414.056 414.072 Human Behavior 427.024 443.051 414.073 Lin, H. University of Toronto,National Taiwan University 426.018 426.045 Lolli, B. Thompson Center, University of Missouri 427.013 Hospital,National Taiwan University Hospital & Lomax, E. Newcastle University 429.044 College of Medicine Lombardo, M. Laboratory for Autism and Neurodevelopmental 208.002 215.003 Lin, T. [email protected] 317.001 426.026 Disorders, Istituto Italiano di Tecnologia 303.001 327.001 National Chengchi University 434.017 Lind, T. San Diego State University,Child and 324.002 London, Z. Rutgers University-New Brunswick 401.011 Adolescent Services Research Center Long, H. University of Memphis 224.002 Linde, J. Georgetown University 422.053 Long, K. Boston University 311.001 Lindemann, M. Roche Pharma Research and Early 217.004 446.017 Loo, B. National University of Singapore 401.019 Development. Roche Innovation Center Basel, Hoffmann-La Roche Looden, T. Donders Centre for Cognitive Neuroimaging 215.004 434.025 Lindly, O. Northern Arizona University 417.008 Loomba, N. Vanderbilt University 434.013 Lindsey, R. A. Washington State University 417.012 422.064 Lopez, K. Arizona State University 228.004 326.002 Lineback, K. [email protected] 415.036 Lopez-Pintado, S. Northeastern University 446.004 Washington University School of Medicine in St. Louis Lopukhina, A. HSE University 413.029 Lingam, R. Cumbria, Northumberland Tyne and Wear NHS 429.046 Lor, P. University of Kansas 427.026 Foundation Trust Lord, C. University of California, Los Angeles 204.003 211.002 Linke, A. San Diego State University 415.040 434.015 226.004 312.003 313.004 315.001 Lipovenko, L. Ezra Medical Center 422.060 401.049 401.065 Lipsmeier, F. Roche Pharma Research and Early 446.017 401.069 401.099 Development. Roche Innovation Center Basel, 410.004 414.042 Hoffmann-La Roche 414.092 422.039 Lisandrelli, G. Indiana University 415.030 415.032 422.074 Losh, A. Graduate School of Education, University of 425.031 University of British Columbia Liu, C. 422.023 California Riverside Liu, C. Personalised Health Care, F. Hoffmann-La 414.029 Losh, M. Northwestern University 413.001 Roche Ltd Loth, E. Institute of Psychiatry, Psychology and 215.001 215.002 Liu, D. Boston College 413.014 Neuroscience, King’s College London 215.003 215.004 Liu, F. Vrije University Amsterdam 312.004 217.004 226.001 306.003 307.001 Liu, G. Penn State College of Medicine 414.069 320.002 321.002 Liu, J. University of California, Los Angeles 319.001 412.006 425.013 Liu, J. Central South University 413.053 425.040 432.001 434.004 434.022 Liu, J. National Clinical Research Center for Mental 411.006 441.017 446.012 Disorders Loukusa, S. University of Oulu 413.067 LIU, J. Tsinghua University 413.054 Loureiro, L. The Hospital for Sick Children 310.001 Liu, K. Massachusetts General Hospital 414.031 414.097 Love, A. M. Aspect Research Centre for Autism Practice 311.004 401.044 401.104 Liu, P. Baylor Genetics 430.002 Loveland, K. A. [email protected] 419.008 419.025 Liu, Q. School of Medicine, Tsinghua University 406.026 The University of Texas Health Science Center Liu, T. Vanderbilt University Medical Center 304.002 422.043 at Houston Liu, T. Foundation for Autistic Children and Adults in 426.018 426.045 Lovette, G. University of Virginia 442.015 Taiwan Low, H. M. Universiti Sains Malaysia 425.006 Liu, X. Indiana University - Bloomington 304.004 Lowe, J. [email protected] 314.003 401.103 Liu, X. Queen’s Genomics Lab at Ongwanada 441.020 441.041 La Trobe University 441.044 Lowenthal, R. Santa Casa de São Paulo School of Medical 427.009 429.037 Liu, Y. National Yang-Ming University 426.034 Sciences Llera, A. Donders Institute for Brain, Cognition and 307.001 434.001 Lowery, L. A. University of Missouri 427.020 Behaviour, Radboud University Nijmegen 434.025 Lowry, S. Seattle Children’s Research Institute 429.018 Medical Centre Loy, N. American University 412.016 Lobo, L. Ummeed Child Development Center 328.004 Lu, J. Hospital for Sick Children 319.003 Locke, J. J. University of Washington 214.004 Lu, S. [email protected] 441.004 Lockwood Estrin, G. [email protected] 425.001 425.016 University of Strathclyde Birkbeck University of London 425.040

179 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Lu, Y. Michigan State University 427.031 Maclay, A. Sheppard Pratt 401.059 Luberto, C. Mass General Hospital 422.051 MacLennan, K. University of Reading 429.042 441.051 Lucas-Wright, A. Charles R. Drew University of Medicine and 422.008 422.075 MacNaughton, G. UCLA Semel Institute 414.062 427.004 Science 435.004 Lucente, H. St. Mary’s University 442.038 MacPherson, S. E. University of Edinburgh 443.013 Ludwig, M. Stemina Biomarker Discovery 406.008 Macwilliam, S. IWK HEALTH CENTRE 426.003 Luedecke, E. King’s College London 401.039 Maddox, B. UNC TEACCH Autism Program 232.004 401.084 422.041 422.053 Luelmo, P. San Diego State University 417.023 Lugo Marín, J. Hospital Universitari Vall d’Hebron 429.013 429.036 Madley-Dowd, P. University of Bristol 429.015 Luk, G. McGill University 426.014 Madrid, A. Syracuse University 435.010 Lundin, K. Karolinska Institutet 320.003 Maes, P. Université libre de Bruxelles 419.018 443.014 Lunsky, Y. [email protected] 401.107 429.002 Magalhães, J. Mackenzie Presbyterian University 427.009 Centre for Addiction and Mental Health Magan Maganto, M. University of Salamanca 436.003 Lupas, A. B. Seattle Children’s Hospital 427.030 427.043 Magaña, S. University of Texas at Austin 228.004 317.004 326.002 414.055 Lurie, S. M. Seaver Autism Center for Research and 414.057 419.026 419.029 Treatment, Department of Psychiatry, 425.010 Icahn School of Medicine at Mount Sinai Magee, P. DNAstack 310.001 Hospital,Ferkauf Graduate School of Psychology, Yeshiva University Magiati, I. [email protected] 401.019 422.037 National University of Singapore 425.022 Lurmann, F. Sonoma Technology, Inc. 309.001 Mahadik, S. Ummeed Child Development Center 425.004 Luthra, N. McMaster Children’s Hospital 225.004 Mahdi, S. UZ Leuven,KU Leuven 418.004 Luu, M. Baylor College of Medicine,Texas Children’s 442.044 Hospital Mahjoob, M. University of Toronto 418.013 Luyster, R. Emerson College 413.023 Mahony, J. Macquarie University,Cooperative Research 401.064 Centre for Living with Autism (Autism CRC) Ly, A. Population Health Sciences, Bristol Medical 401.013 School, MRC Integrative Epidemiology Unit Mahurin, M. University of Missouri, School of Medicine 442.025 Lyall, K. Drexel University 415.018 419.004 Maillard, A. Lausanne University Hospital 441.045 419.005 419.006 Major, S. Duke Center for Autism and Brain 202.002 406.001 419.022 Development, Department of Psychiatry and Lyman, B. Autism Spectrum Diagnostics and Consulting 422.060 Behavioral Sciences, Duke University Lyon, A. [email protected] 414.036 Major, S. T. Duke Center for Autism and Brain 406.012 Southwest Autism Research & Resource Development, Department of Psychiatry and Center Behavioral Sciences, Duke University Lyst, M. University of Edinburgh 206.001 Majumdar, C. Department. of Electrical Engineering, IIT Delhi 446.022 Lytridis, C. International Hellenic University 446.024 Mäkinen, L. University of Oulu 413.067 M Makiyama, Y. Institute of Neuropsychiatry, Seiwa Hospital 231.002 Male, I. Sussex Community NHS Trust 414.047 414.107 Ma, Z. ALSOLIFE 414.072 442.021 Macari, S. Yale University School of Medicine 322.003 414.041 Malhi, P. Post Graduate Institute of Medical Education 401.030 443.035 and Research MacCormack, J. University of Lethbridge 417.015 425.018 Malik, R. Weill Cornell Medicine-Qatar 406.007 Maljaars, J. KU Leuven,UPC Z.org KU Leuven 218.003 Macdonald, D. McGill University 426.014 Malligo, A. Southwest Autism Research & Resource 414.036 MacDonald, R. University of Edinburgh 442.041 Center MacFarlane, H. Oregon Health & Science University 413.019 Mallinson, D. University of Wisconsin Madison 401.043 Machalicek, W. A. University of Oregon 326.002 Mallipeddi, S. College of William and Mary 443.034 MacIntyre, L. Montreal Neurological Institute, McGill 320.001 443.041 Malow, B. A. Vanderbilt University Medical Center 404.004 University Malvy, J. CHRU Tours,EXcellence Center in Autism and 406.027 435.005 Mack, D. L. University of Washington 407.002 neurodevelopmental disorders Mackay, W. Stellenbosch University 425.013 Malysheva, O. Cornell University 419.016 MacKenzie, C. K. Syracuse University 435.010 441.048 Mämmelä, L. University of Oulu 413.067

MacKenzie, K. University of Pittsburgh School of Social Work 442.030 Mammen, M. Southwest Autism Research & Resource 414.036 Center Mackie, T. I. Institute for Health, Health Care Policy and 228.002 Aging Research, School of Public Health, Mamokhina, U. Moscow State University of Psychology and 413.029 Rutgers Univer Education

180 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Man, J. University of Cambridge 314.001 Martinez-Cerdeno, V. UC Davis School of Medicine; Institute for 438.001 446.012 Pediatric Regenerative Medicine and Shriners Mancini, A. IRCCS Stella Maris Foundation 415.023 Hospitals for Children of Northern California Mancini, J. Seattle Children’s Autism Center 442.024 Martínez-Marcial, M. Instituto de Investigaciones Biomédicas, UNAM 403.007 Mandel, G. Oregon Health & Science University 206.003 Martinez-Pedraza, F. Florida International University 228.002 Mandell, D. S. University of Pennsylvania 232.004 305.002 Martinez-Torres, K. Vanderbilt University 419.012 410.006 447.004 Martinez-Trujillo, J. C. Western University 434.028 Maruani, A. hopital robert debre 226.001 Mandy, W. University College London 401.096 401.106 414.105 417.018 Marzano, G. [email protected] 421.001 427.008 Baylor College of Medicine,Texas Children’s Manelis, L. Ben Gurion University of the Negev 426.046 Hospital Mankovich, A. University of Connecticut 413.058 Masi, G. IRCCS Stella Maris Foundation 231.002 Mann, C. Goethe-University Frankfurt am Main 215.003 432.001 Mason, D. Institute of Psychiatry, Psychology and 401.009 401.060 434.017 434.027 Neuroscience, King’s College London 427.007 442.042 Mannheim, J. Seattle Children’s Autism Center 442.024 Mason, L. Centre for Brain and Cognitive Development, 215.001 215.002 Manohar, H. [email protected] 422.056 Birkbeck, University of London 217.004 306.003 National Institute of Mental Health and Neuro 320.002 406.009 Sciences (NIMHANS), Bangalore 406.017 425.016 Manrique, S. CPAL. Peru. 425.029 425.040 429.026 Mantua, V. FDA 230.004 Mason, M. Rowan University 429.009 Mantzalas, J. La Trobe University 401.103 Mason, R. Purdue University 422.001 Manyukhina, V. National Research University Higher School of 434.024 Masongsong, Z. E. Healthy African American Families, II 422.075 Economics,MEG-Center, Moscow University of Massolo, M. L. Kaiser Permanente 429.032 Psychology and Education (MSUPE) Massuda, R. Federal University of Paraná 442.006 442.047 Mao, X. South China Normal University 425.011 Mastergeorge, A. M. Texas Tech University 405.001 413.050 Maqueda-Martínez, E. Instituto de Investigaciones Biomédicas, UNAM 403.007 413.058 443.027 Marchenko, O. Simons Foundation 430.001 Masters, E. C. Syracuse University 435.010 441.048 Marco, E. Cortica Healthcare 404.007 434.002 Masuda, A. University of Southern California 415.003 440.003 Masumoto, K. [email protected] 411.012 Marek, S. Washington University School of Medicine 307.002 Kobe University Margari, L. University of Bari “Aldo Moro” 231.002 Masuya, J. Department of Psychiatry, Tokyo Medical 427.008 Mariano, V. University of Lausanne 403.016 University Ibaraki Medical Center, Ibaraki, Japan Maroon, M. University of Western Ontario 403.001 Mata-Greve, F. Marquette University 406.023 Marret, S. Rouen University Hospital 410.007 Mathaga, J. Arthur’s Dream Autism Trust (ADAT 425.021 Marrus, N. Washington University School of Medicine 307.002 308.004 Foundation) 312.002 320.001 415.036 443.041 Matheis, M. University of California at Davis MIND Institute 446.006 Marsh, K. Unumb Center of Neurodevelopment 210.004 Matherly, S. M. University of North Carolina 401.042 401.066 Marshall, J. Easterseals Midwest 442.025 Matos, E. Ico Project Foundation 442.006 442.047 Marta, E. Drexel University 401.018 Matsuba, E. Syracuse University 435.010 441.048 Martin, A. University of California Riverside 402.003 427.029 Matsushima, K. Kansai Medical University 401.027 427.033 Matthews, N. L. Southwest Autism Research & Resource 414.036 Martin, G. E. St. John’s University 413.001 Center Martin, L. University of Kansas Medical Center 227.004 Mattila, M. Oulu University Hospital and University of Oulu 413.067 Martin, S. American University 412.016 Mattingley, J. The University of Queensland 412.009 Martin, W. Education Development Center 417.028 Matz Vaisman, T. The Hebrew University of Jerusalem 422.003 Martín Cilleros, M. University of Salamanca 436.003 Maxwell, J. Newcastle University 427.006 Martinage, A. OMPACO 425.023 Maxwell, S. Icahn School of Medicine at Mount Sinai 302.003 Martindale, I. A. San Diego State University 415.040 434.015 May, D. National Autistic Society 326.004 417.002 Martinez, K. San Diego State University / University of 324.002 437.008 417.036 California, San Diego Joint Doctoral Program May, G. University of Nebraska-Lincoln 324.002 in Clinical Psychology,Child and Adolescent Mayer, Y. UBC 417.034 Services Research Center (CASRC) Mazefsky, C. A. [email protected] 211.003 418.007 Martinez, M. Kaiser Permanente Southern California 309.001 University of Pittsburgh School of Medicine 418.015 429.033 446.004 446.007 Mazmanian, S. K. California Institute of Technology 212.003

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Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Mazurek, M. O. [email protected] 422.009 427.013 McLaughlin, C. Columbia University 435.013 439.018 University of Virginia 429.041 442.014 443.021 442.015 442.016 McLaughlin, E. University of Nottingham 315.003 Mazzone, L. University of Rome Tor Vergata 231.002 McLaughlin, W. The University of the West Indies, Mona 419.025 Mazzoni, N. University of trento 415.017 422.050 Campus McAllister, A. University of California Davis 403.010 403.014 McMAHON, J. V. [email protected] 323.002 University of Limerick McAllister, M. Duke University Medical Center 419.013 McMahon, W. University of Utah 321.003 McAllister, T. Yale University School of Medicine 406.016 McManus, B. University of Alabama at Birmingham 401.073 McAlonan, G. South London and Maudsley Foundation NHS 217.002 Trust McMorris, C. A. [email protected] 417.027 422.027 University of Calgary 422.054 429.011 McCabe, M. Seattle Children’s Research Institute 413.049 442.020 429.035 434.029 McCauley, J. [email protected] 313.004 401.069 442.009 Saint Mary’s College of California McNair, M. Stony Brook University 443.049 McClain Verdoes, M. B. Utah State University 414.052 436.002 McNally Keehn, R. Indiana University School of Medicine 414.080 McCleery, J. Saint Joseph’s University 427.042 McPartland, J. Yale University School of Medicine 202.001 209.002 McConnell, R. University of Southern California 309.001 322.002 406.016 409.002 412.018 McConnell Hatch, A. University of Southern California 415.003 422.033 429.012 McCormick, C. Purdue University 422.001 435.003 435.009 McCracken, C. Emory University School of Medicine 401.076 435.012 435.014 435.015 440.005 McCrimmon, A. University of Calgary 434.029 441.024 443.025 McDaniel, J. University of Kansas 426.017 427.026 444.005 McDonald, R. G. Montclair State University 427.011 McQuaid, G. A. G 301.003 301.004 401.031 McDonnell, C. G. Virginia Polytechnic Institute and State 305.001 413.051 McQueen, E. C. University of North Carolina at Chapel Hill 415.013 415.033 University 414.038 429.025 415.035 429.031 McDonnell, N. University of Glasgow 446.025 McRae, A. Institute for Molecular Bioscience, The 423.010 McDougall, F. Genentech 439.008 University of Queensland McDougle, C. Massachusetts General Hospital 418.002 420.001 McRae, K. University of Western Ontario 411.003 413.056 427.001 427.032 McVeigh, J. [email protected] 429.029 McFayden, T. Virginia Polytechnic Institute and State 413.040 Curtin University University McVey, A. J. University of British Columbia 306.001 406.023 McGeown, S. University of Edinburgh 417.018 422.023 429.019 McGhee Hassrick, E. Drexel University 305.002 401.018 Mcwilliams, L. The University of Manchester 426.029 410.006 Meaburn, E. Birkbeck College 404.005 406.009 McGranaghan, R. University of Nottingham 315.003 Meadan, H. University of Illinois 425.019 McGrath, J. Trinity College 231.002 Mecca, T. Santa Casa de São Paulo School of Medical 429.037 McGregor, H. Loma Linda University 422.045 Sciences McGrew, J. Indiana University - Purdue University 201.003 221.004 Meena, A. All India Institute of Medical Sciences, New 327.003 Indianapolis 417.006 422.047 Delhi McIntyre, L. University of Oregon 422.024 426.011 Meera, S. S. National Institute of Mental Health and 413.039 415.027 Neurosciences 415.039 425.037 McIntyre, N. S. [email protected] 317.003 413.013 607.003 University of Central Florida 427.028 Megalogeni, M. King’s College London 217.004 McKechnie, R. Boston Children’s Hospital,Boston University 413.044 Mehringer, J. Indiana University Purdue University - 414.066 McKenney, E. [email protected] 418.016 Indianapolis Rowan University Mei, P. Washington University in St. Louis 312.002 McKernan, E. P. Syracuse University 413.059 441.048 Mei, T. Donders Institute for Brain, Cognition and 215.004 307.001 Mckinney, A. [email protected] 401.102 Behaviour, Radboud University Nijmegen University of Edinburgh Medical Centre McKinney, W. S. University of Kansas 227.004 441.021 Meiri, G. Soroka University Medical Center 414.013 414.088 441.038 419.021 426.046 McKinnon, I. Newcastle University 429.046 430.004 Meirovitch, Y. Massachusetts Institute of 405.005 McKinstry, R. Washington University School of Medicine 307.002 415.039 Technology,Weizmann Institute of Science McLaren, J. Geisel School of Medicine, Dartmouth 202.004 Melanson, D. Brigham Young University 418.027 443.017 McLaren, T. Cooperative Research Centre for Living with 423.010 443.043 Autism (Autism CRC),Institute for Molecular Bioscience, The University of Queensland Melbourne, J. University of California, Los Angeles 318.001

182 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Melero, P. Valencia Montessori School 425.043 Mikami, T. Research Center for Child Mental Development, 406.020 414.035 Graduate School of Medicine, Hirosaki 414.102 Melgarejo, M. San Diego State University 201.004 417.021 University Melkumyan, M. American University 412.016 Mikkelsen, M. Kennedy Krieger Institute 307.004 Mellman, H. JFK Partners, University of Colorado Anschutz 422.049 Milačić-Vidojević, I. University of Belgrade 422.007 Medical Campus Milan, S. University of Connecticut 415.010 Mello, C. The Pennsylvania State University 414.065 Milbourn, B. Curtin University 311.003 Mello, M. University of California at Davis MIND Institute 417.033 Milbrandt, J. Washington University in St. Louis 223.001 Meltzer, L. [email protected] 414.020 429.028 National Jewish Health Miles, C. University of Washington 408.003 Memon, P. King’s College London 425.036 Milgramm, A. Center for Autism and Related Disabilities 427.005 Menashe, I. National Autism Research Center 414.013 414.088 Milham, M. Child Mind Institute 226.004 231.002 419.021 426.046 Mill, J. University of Exeter 325.004 430.004 Mendez, A. Marcus Autism Center, Children’s Healthcare 406.015 442.027 Millan, M. E. Stanford University School of Medicine 422.048 of Atlanta and Emory University Department of Miller, C. University of British Columbia 443.015 Psychology Miller, H. L. University of North Texas Health Science 441.035 441.036 Mendez, E. San Diego State University 415.040 Center Mendonca, D. Icahn School of Medicine at Mount Sinai 302.003 Miller, J. Children’s Hospital of Philadelphia 414.078 427.042 Menezes, M. University of Virginia 442.016 Miller, M. University of California, Davis, MIND Institute 415.015 415.034 Mennes, M. Donders Institute for Brain, Cognition and 434.001 Millington, E. J. University of Glasgow 441.002 441.014 Behaviour Millington, J. University of Sussex 417.032 Menon, S. Sangath 425.005 425.024 Mills, N. University of Bristol 409.001 422.012 Menon, V. Stanford University 434.026 Mentch, J. Dartmouth College,Massachusetts Institute of 217.001 404.002 Milner, V. L. [email protected] 401.002 401.060 Technology Institute of Psychiatry, Psychology and Neuroscience, King’s College London Merikangas, K. National Institute of Mental Health 231.002 Milosavljevic, B. Institute of Psychiatry, Psychology and 414.054 429.026 Merilampi, S. Satakunta University of Applied Sciences 447.005 Neuroscience, King’s College London Mermillod, M. LPNC, Univ. Grenoble Alpes, Univ. Savoie 436.005 Milton, D. University of Kent 429.046 Mont Blanc, CNRS Miner, S. [email protected] 437.002 Messina, C. Emory University 425.021 Case Western Reserve University Messinger, D. University of Miami 413.060 414.007 Minetto, M. Federal University of Paraná 442.006 418.005 446.015 442.047 Mevorach, C. [email protected] 427.009 Minnigulova, A. HSE University 413.029 University of Birmingham Miodrag, N. [email protected] 401.023 Meyer, A. T. JFK Partners, University of Colorado School 304.001 427.014 California State University Northridge of Medicine 442.028 Miotti, C. Curtin University 429.029 Meyer, C. Axial Therapeutics, Inc. 434.005 Mirenda, P. [email protected] 313.001 Meyer, P. King’s College London 425.036 University of British Columbia 313.002 Mgaieth, F. King’s College London, Institute of Psychiatry, 217.004 422.023 Psychology and Neuroscience 422.035 426.041 429.027 Mian, N. University of New Hampshire 414.094 442.029 Mias, G. Michigan State University 316.002 Mirsky, Y. Bar Ilan University 417.024 Micai, M. Istituto Superiore di Sanità 427.025 Mishra, D. Maulana Azad Medical College and Lok Nayak 426.006 Miceli, A. Vanderbilt University Medical Center 308.002 422.066 Hospital Michaelovski, A. Soroka University Medical Center,National 414.013 426.046 Mitchel, M. Geisinger 221.001 Autism Research Center 430.004 Mitchell, B. Department of Computer Science 414.089 Michaelson, J. Division of Computational and Molecular 310.004 430.001 Mitchell, C. Emerson College 413.023 Psychiatry Mitchell, M. [email protected] 414.036 Michalak, C. Rush University Medical Center 414.028 Southwest Autism Research & Resource Michelini, G. University of California Los Angeles 429.040 Center Middleton, C. University of Colorado Anschutz Medical 304.001 427.014 Mitchell, W. University of Calgary 422.038 Campus 422.070 442.026 Mifsud, M. TAASC 414.086 Mitra, R. Washington University in St. Louis 223.001 Miguel, J. UC San Diego 422.014 Mitter, V. Centre for Fertility and Health (CeFH), 309.002 Mikami, M. Hirosaki University 414.035 Norwegian Institute of Public Health

183 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Mittiga, S. Monash University 414.081 Morin, D. Université du Québec à Montréal 414.065 Mitz, A. R. National Institute of Mental Health 404.003 Morin, K. University of North Carolina, Chapel Hill 414.008 427.028 Mizutani, R. United Graduate School of Child Development, 413.015 Kanazawa University Moriuchi, J. Department of Psychiatry, Rush University 443.053 Medical Center Modi, M. [email protected] 406.011 Boston Children’s Hospital Morosini, P. Unità Operativa Neuropsichiatria Infantile 231.002 ASST Lodi Moehrle, D. University of Western Ontario 403.012 440.004 Morris, E. La Trobe University 429.043 Moerkerke, M. KU Leuven,Leuven Autism Research 406.024 435.006 Morrison, A. Anglia Ruskin University 443.002 Consortium (LAuRes) Morrison, K. E. University of Texas at Dallas 443.006 Moessnang, C. Central Institute of Mental Health, University of 215.001 215.004 Morriss Sipsock, D. [email protected] 327.002 Heidelberg 307.001 434.022 Maine Behavioral Healthcare Moffatt-Bruce, S. The Ohio State University 328.002 442.049 Morrow, E. Brown University 327.002 Moffitt, J. M. [email protected] 414.007 418.005 Mors, O. Aarhus University,The Lundbeck Foundation 325.001 University of Miami Initiative for Integrative Psychiatric Research, 325.004 Mofid, Y. UMR 1253, iBrain, Université de Tours, Inserm 435.005 iPSYCH,Psychosis Research Unit, Aarhus University Hospital Mohan, A. University of Connecticut 401.012 414.060 Morton, H. E. Binghamton University,Geisinger 221.001 Moilanen, I. University of Oulu and Oulu University Hospital 427.025 Mosconi, M. [email protected] 227.004 303.003 Mol, A. dr. Leo Kannerhuis 414.051 429.010 University of Kansas 307.002 319.002 Monahan, J. [email protected] 413.021 443.045 441.021 441.027 University of Delaware 441.038 441.040 Mondejar, V. Stony Brook University 443.049 Moscoso, A. Institut Pasteur 217.004 Monga, S. The Hospital for Sick Children 418.013 418.022 Moser, C. University of South Carolina 414.094 Monroy, M. University of Salamanca 427.025 Moses, A. D. Santa Clara University 412.017 Montani, C. Istituto Italiano di Tecnologia 208.002 Moses Bélanger, C. Université du Québec en Outaouais,Fondation 427.034 Mira Montenegro, M. C. University of Texas Rio Grande Valley 422.025 422.029 Moss, S. Northumberland CCG 427.007 Monterrey, J. Stanford University 319.004 Moss, S. Yerkes National Primate Research Center, 403.005 Montgomery, L. University of Edinburgh 411.011 Emory University Montiel-Nava, C. La Universidad del Zulia 425.028 Mossa, A. Icahn School of Medicine at Mount Sinai 431.001 Montobbio, N. Italian Institute of Technology 412.010 Mossad, S. Hospital for Sick Children 319.003 Montrenes, J. University of Pittsburgh School of Medicine 446.004 Mosse, D. SOAS University of London 232.001 Moodie, T. University of Technology Sydney Autistic 422.058 Mostofsky, S. H. Center for Autism and Related Disorder, 217.003 Advisory Board Kennedy Krieger Institute 307.004 Moody, C. T. UCLA Semel Institute for Neuroscience and 401.101 427.015 Mottron, M.D., L. Autism Research Group, CIUSSS du Nord-de-l 441.023 Human Behavior 427.016 ’Île-de-Montréal Moody, E. J. University of Wyoming 324.001 419.001 Mozolic-Staunton, B. Southern Cross University 414.034 437.011 Moore, H. Newcastle University 418.014 MRC AIMS Consortium, *. University of Cambridge 434.017 Moors, P. Laboratory of Experimental Psychology, 444.003 Muckerman, J. University of Missouri 427.013 University of Leuven (KU Leuven), Leuven, Mudhar, G. University of Oslo 413.041 Belgium Mueller, J. South London and Maudsley NHS Foundation 427.012 Moosajee, M. The Francis Crick Institute,Great Ormond 404.001 Trust Street Hospital for Children,Moorfields Eye Mueller, N. California State University Channel Islands 401.068 Hospital,UCL Institute of Ophthalmology Mues, M. Ghent University 226.001 Mor Snir, I. [email protected] 426.024 Association for Children at Risk Muiruri, J. Kenya Autism Alliance 425.021 Morales, D. Loyola University Chicago 401.038 Mukherjee, P. University of California, San Francisco 434.002 440.003 Morales, M. National Research Council 423.002 Mulay, K. National University Hospital 422.046 Mordekai, N. Stony Brook University 443.049 Mulick, J. Ohio State Universty 210.002 Moreno, M. P. University of Connecticut 415.038 Mulle, J. Emory University School of Medicine 439.011 Morgan, C. The University of Alabama at Birmingham 422.034 439.005 Mullen, B. SiLAS Solutions 443.022 Morgan, E. H. UC Davis 410.006 422.059 Müller, R. San Diego State University,SDSU/UC San 415.040 Morgan, L. American Association of Suicidology 429.014 Diego 434.015 Mori, H. Research Center for Child Mental Development, 414.035 Muller Spaniol, M. [email protected] 427.009 Graduate School of Medicine, Hirosaki 419.003 Mackenzie Presbyterian University University

184 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Mullett, J. Lurie Center for Autism, Massachusetts 420.001 Mutti-Driscoll, C. University of Washington 442.024 General Hospital 427.001 Muttiah, N. Department of Disability Studies , Faculty of 447.001 Mundy, P. C. University of California at Davis 100.001 411.004 Medicine ,University of Kelaniya,Department 413.013 414.011 of Disability Studies ,Faculty of Medicine 443.046 ,University of Kelaniya Munir, K. M. University Center for Excellence in 419.007 Myers, E. University of Rochester Medical Center 440.001 Developmental Disabilities (UCEDD), Division of Developmental Medicine, Boston Children Myers, J. Seattle Pacific University 427.030 Hospital, 300 Longwood Avenue, Boston, MA, Myers, S. M. Geisinger 221.001 USA Myhre, K. University of Pennsylvania 232.004 Munoz, V. Vanderbilt University Medical Center 413.025 Myrick, Y. Children’s National Hospital 228.001 Munson, J. University of Washington 422.013 Myszko, Z. Kessler Foundation 437.004 Murali, S. University of Washington 430.001 Muratori, F. IRCCS Fondazione Stella Maris,Department of 402.001 415.023 N Clinical and Experimental Medicine, University 423.002 424.002 Nacho, V. Simon Fraser University 443.042 of Pisa Nader, A. [email protected] 425.007 Murias, K. University of Calgary 434.029 Université de Montréal Murias, M. Duke Center for Autism and Brain 202.001 Nadif Kasri, N. Radboudumc 223.002 Development, Department of Psychiatry and 202.002 Behavioral Sciences, Duke University Nadler, C. [email protected] 210.003 415.021 Children’s Mercy Kansas City Murphy, C. M. Department of Forensic and 434.027 Neurodevelopmental Sciences, and Nadwodny, N. Children’s National Hospital 422.021 422.022 the Sackler Institute for Translational Nagai, Y. Institute for AI and Beyond, The University of 401.089 Neurodevelopment, Institute of Psychiatry, Tokyo,The University of Tokyo Psychology and Neuroscience, King’s Nagesh, S. Latika Roy Foundation 425.037 College London,Behavioural Genetics Clinic, Adult Autism Service, Behavioural and Nagle, J. Penn State College of Medicine 401.036 Developmental Psychiatry Clinical Academic Nagpal, N. [email protected] 401.026 401.072 Group, South London and Maudsley Foun Simons Foundation Murphy, D. G. Institute of Psychiatry, Psychology and 215.001 215.002 Nahmias, A. S. [email protected] 201.004 417.021 Neuroscience, King’s College London 215.003 215.004 University of California at Davis MIND Institute 446.008 217.002 217.004 Naigles, L. University of Connecticut 401.012 413.013 226.001 306.003 413.023 413.024 307.001 320.002 413.036 413.038 425.013 425.040 413.050 413.058 432.001 434.004 415.010 434.017 434.022 Naiman, I. University of Toronto 441.049 434.027 441.017 442.008 446.012 Naing, Z. University of California, San Francisco 325.002 Nair, D. Latika Roy Foundation 425.037 Murphy, L. Boling Center for Disabilities 436.002 Nair, N. University of Missouri 406.002 Murphy, M. University of Kansas 426.017 Naithani, L. Sangath 425.005 425.024 Murphy, M. Emory University School of Medicine 439.011 Nakagawa, A. Research Center for Child Mental Development 427.008 Murphy, S. Drexel University 401.018 Chiba University Murphy, S. [email protected] 401.102 Nakajima, S. Keio University School of Medicine 231.002 University of Bedfordshire Nakamura, K. Research Center for Child Mental Development, 406.020 414.035 Murray, D. S. [email protected] 321.002 Graduate School of Medicine, Hirosaki 414.102 419.003 Autism Speaks 422.047 University,Department of Neuropsychiatry, Murray, F. Autistic Mutual Aid Society Edinburgh (AMASE) 417.018 Graduate School of Medicine, Hirosaki University Murray, J. Yale University 412.003 Nakamura, S. Fukushima University 427.008 Murtagh, L. Roche Pharma Research and Early 321.002 410.005 Development, Roche Innovation Center 446.017 Nalbach, A. [email protected] 441.031 University of Southern California Murthi, K. New York University 417.028 Nalpathamkalam, T. The Hospital for Sick Children 310.001 Muscatello, R. A. [email protected] 406.010 429.022 Vanderbilt University Medical Center 443.020 Nanclares-Nogues, V. [email protected] 442.014 Advocate Children’s Hospital Musci, R. Johns Hopkins Bloomberg School of Public 415.018 Health Nanovic, S. Drexel University 308.001 Mussarrat, S. Boston Children’s Hospital 414.022 441.026 Must, A. Tufts University School of Medicine 311.002 414.055 419.026 419.029 437.010

185 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Naples, A. Yale University School of Medicine 202.001 322.002 Ng-Thow-Hing, A. Stanford University 437.001 406.016 409.002 Nguyen, J. Holland Bloorview Kids Rehabilitation Hospital 413.027 412.018 435.003 435.009 435.012 Nguyen, K. University of Connecticut 413.024 435.014 435.015 Nguyen, M. UC Irvine 427.020 440.005 441.024 Nguyen, P. VNU University of Education 414.025 443.025 444.005 Naqvi, N. C. Iona College 425.006 425.023 Niarchou, M. Vanderbilt University Medical Center 404.004 Narayan, A. Tulane University School of Medicine,University 434.002 Niblo, K. Icahn School of Medicine at Mount Sinai 302.003 431.001 of California, San Francisco Nicholas, D. University of Calgary 401.001 422.038 Narayan, C. All India Institute of Medical Sciences, New 327.003 422.070 437.014 Delhi 442.026 Nicholas, E. University of Rochester Medical Center 440.001 Narvekar, N. King’s College London 415.001 Nichols, L. A.J. Drexel Autism Institute 415.004 Narzisi, A. IRCCS Stella Maris Foundation 231.002 442.046 Nicholson, A. Vanderbilt University 210.004 308.002 Natowicz, M. Cleveland Clinic, LL-3 406.008 426.008 Nickel, R. E. OHSU 414.103 Nauman, J. Michigan State University 441.019 Nicolopoulou, A. Lehigh University 413.037 Nava, C. M. University of Texas Rio Grande Valley 401.058 414.067 422.025 422.029 Nicolson, R. University of Western Ontario 413.027 429.005 425.009 425.026 434.014 434.028 425.029 425.044 441.020 441.041 442.025 441.044 Navon, R. Bar-Ilan University 443.011 Nielsen, J. Harvard University 418.027 429.001 434.012 434.018 Nayar, K. Northwestern University 413.001 443.017 443.043 Ndlovu, M. University of Cape Town 425.038 Nieto, C. Universidad Autónoma de Madrid 425.043 Nebel, M. Kennedy Krieger Institute 307.002 Nijhof, A. Ghent University,Institute of Psychiatry, King’s 444.001 Neece, C. Loma Linda University 422.024 422.045 College London Neiderman, H. University of Washington 442.032 Nikolaeva, J. I. Northwestern University 435.004 Neilson, S. Independent Researcher 429.007 Nikopoulou, V. Papageorgiou General Hospital 446.024 Neklyudova, A. Institute of Higher Nervous Activity and 439.002 Nir, Z. The Hebrew University of Jerusalem 203.001 Neurophysiology Nishida, A. Oregon Health & Science University 430.001 Nelson, A. UCSF 234.002 Nishino, T. Washington University School of Medicine 307.002 Nelson, B. Stony Brook University 435.001 NNamoko, N. Edge Hill University 414.090 Nelson, C. A. [email protected] 202.001 209.003 Nnoli, N. California State University Northridge 401.023 Boston Children’s Hospital,Harvard Graduate 322.002 409.002 Nobbs, D. Roche Pharma Research and Early 217.004 School of Education 412.014 413.044 Development. Roche Innovation Center Basel, 230.001 414.021 415.020 Hoffmann-La Roche 446.017 415.022 415.029 435.009 435.015 Nobel Norrman, H. Center of Neurodevelopmental Disorders at 441.034 443.025 Karolinska Institutet (KIND) Neo, W. Purdue University 414.096 Nobili, L. University of Genoa,IRCCS Istituto Giannina 411.017 Nespodzany, A. Arizona State University 412.012 Gaslini, Ospedale Pediatrico 412.010 Netzer, S. The Hebrew University of Jerusalem 426.019 Noble, C. Western Washington University 422.057 Neufeld, J. Karolinska Institutet, & Stockholm Health Care 320.003 434.011 Noda, Y. Keio University School of Medicine 231.002 Services, Region Stockholm 441.034 Noens, I. KU Leuven 218.003 Neuhaus, E. E. University of Washington,Seattle Children’s 413.049 429.018 Nogara, K. Ico Project Foundation 442.006 442.047 Research Institute Nogueira, M. Universidade Federal de Minas Gerais 415.007 415.031 Nevill, R. University of Virginia 442.015 Nomi, J. University of Miami 419.028 434.003 Newberg, A. Emerson College 413.046 Noppornpitak, J. DNAstack 310.001 Newmeyer, A. Nationwide Childrens Hospital/Ohio State 210.002 University Nord, A. University of California, Davis 403.010 Newschaffer, C. J. Pennsylvania State University 415.018 419.004 Nordahl, C. W. The Medical Investigation of 302.004 313.003 419.005 419.006 Neurodevelopmental Disorders (MIND) Institute, 414.101 429.034 419.016 419.022 UC Davis School of Medicine, University of 434.006 434.021 California Davis 441.016 Newton, L. Clinical Outcomes Solutions 439.008 Nordahl, C. University of California at Davis School of 208.003 Ney, D. University of Wisconsin 406.008 Medicine Ng-Cordell, E. University of British Columbia Vancouver,MRC 439.009 Nordahl-Hansen, A. Faculty of Education, Østfold University College 413.018 Cognition & Brain Sciences Unit, University of 439.012 Cambridge Nordenskjold, M. Karolinska Institutet 430.002

186 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Nordgren, A. Karolinska institutet 439.015 Oakley, B. Institute of Psychiatry, Psychology and 226.001 442.008 Neuroscience, King’s College London Normand, C. L. [email protected] 401.016 401.040 Université du Québec en Outaouais 427.034 Obeid, R. Case Western Reserve University 425.018 425.033 Normansell-Mossa, K. M. Brigham Young University 401.017 418.027 Oberlander, T. University of British Columbia 419.011 Norris, M. [email protected] 210.002 414.070 OBrien, H. University of Calgary 422.027 Nationwide Children’s Hospital Ocampo, E. V. Rush University Medical Center 413.033 422.006 Northrup, J. B. University of Pittsburgh School of Medicine 211.003 446.004 443.053 446.014 Nowakowski, T. University of California San Francisco 233.004 430.002 Odendaal, H. Stellenbosch University 226.001 425.013 Odom, S. L. University of North Carolina at Chapel Hill 213.004 317.003 Nowell, K. Thompson Center for Autism & 231.002 414.037 323.001 401.022 Neurodevelopmental Disorders 414.106 418.006 427.028 443.050 447.003 Nowell, S. W. University of North Carolina - Chapel Hill 427.028 443.050 Oeltzschner, G. The Johns Hopkins University School of 217.003 307.004 Nowinski, L. Massachusetts General Hospital 427.001 427.032 Medicine Ntombela, B. University of Zululand 417.008 Ogle, L. N. Ball State University 201.003 221.004 Nugent, N. Towson University 401.100 Ohler, A. University of Missouri 422.020 Numa, M. A. Brigham Young University 434.012 Oi, M. Kanazawa University, United Graduate School 413.015 Nunez, M. Universidad Autonoma de Madrid 425.028 425.044 of Child Dev. Nunez Pepen, R. Boston Medical Center 437.013 Oien, R. A. The Arctic University of Norway 414.049 414.079 Nuño, M. UC Davis 424.003 Ojha, K. University of Louisville School of Medicine 404.006 Nuske, H. J. [email protected] 305.002 410.006 Okada, N. J. [email protected] 319.001 434.007 University of Pennsylvania 447.004 University of California, Los Angeles 440.006 Nwaordu, G. Goldsmiths University of London 401.097 Okoniewski, K. RTI International 439.013 Nys, J. IDLab - Department of Computer Science, 444.003 Okuno, M. Gunma University of Health and Welfare 414.098 University of Antwerp - IMEC, B-2000 Antwerp, Okyere, C. Michigan State University 427.017 427.041 Belgium Oldehinkel, M. Donders Institute for Brain, Cognition and 434.001 Nyström, P. Uppsala University 406.009 Behaviour Nærland, T. Oslo University Hospital 426.009 Oldham, A. M. Drexel University 413.062 O Oliveira, G. g. Centro Hospitalar e Universitário de Coimbra 410.007 - CHUC O Burns, C. B. UNC Chapel Hill 210.002 Oliver, C. Cerebra Centre for Neurodevelopmental 418.008 O’Brien, A. [email protected] 413.007 Disorders Massachusetts Institute of Technology,Harvard Oliver, K. University of California at Davis MIND Institute 417.033 446.008 University

O’Brien, S. MRC Cognition & Brain Sciences Unit, 439.009 439.012 Ollendick, T. Virginia Polytechnic Institute and State 413.040 426.036 University of Cambridge University O’Connell, G. Humboldt University 434.011 Oller, D. University of Memphis,Konrad Lorenz Institute 224.002 224.003 O’Connor, R. University of Glasgow 232.001 315.003 for Evolution and Cognition Research,Institute 224.004 429.008 for Intelligent Systems O’Donnell, R. O. Thompson Center for Autism & 417.010 Olsen, D. Children’s Mercy Kansas City,University of 210.003 Neurodevelopmental Disorders Missouri Kansas City School of Medicine O’Dowd, E. Discipline of General Practice, National 443.009 Olson, L. A. SDSU/UC San Diego 415.040 434.015 University of Ireland,University of Edinburgh Oluonye, N. M. Great Ormond Street Hospital for Children NHS 404.001 O’Flaherty, J. University of Manchester 407.003 Foundation Trust,Moorfields Eye Hospital NHS O’Hagan, B. Boston Medical Center 314.004 Foundation Trust O’Hara, R. Stanford University 302.004 Omigbodun, O. University of Ibadan 422.026 O’Kelley, S. [email protected] 414.033 422.034 Onofrychuk, E. University of Calgary 422.070 The University of Alabama at Birmingham 439.005 441.007 Oomen, D. Ghent University 444.008 441.052 Oram Cardy, J. Western University 440.004 O’Neil, M. Rose F. Kennedy Center, Children’s Evaluation 427.022 and Rehabilitation Center; Montefiore Medical Oredipe, T. College of Staten Island, CUNY 422.072 Center Orekhova, E. MedTech West and the Institute 434.024 O’Roak, B. J. Oregon Health & Science University 430.001 of Neuroscience and Physiology, Sahlgrenska Academy, the University of O’Sullivan, J. A. Roche Pharma Research and Early 446.017 Gothenburg,Moscow University of Psychology Development. Roche Innovation Center Basel, and Education (MSUPE) Hoffmann-La Roche Oreskovic, N. Mass General Hospital 442.017 Oakes, L. A. University of Rochester Medical Center 440.001 Orlich, F. Seattle Children’s Hospital 417.019

187 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Orsmond, G. Boston University 311.001 323.004 Panzeri, V. University of Milano-Bicocca, School of 401.052 Medicine and Surgery Osato, A. Research Center for Child Mental Development, 406.020 414.102 Graduate School of Medicine, Hirosaki Paolizzi, E. University of Trento 426.037 University Papadopoulos, C. University of Bedfordshire 326.003 Osborne, M. R. South Tyneside’s Kids And Young Adults Klub - 410.002 414.009 Papadopoulou, M. Aristotle University of Thessaloniki, 446.024 Special needs support group (KAYAKS) 422.062 Paparella, T. University of California Los Angeles 414.092 Oshima, F. [email protected] 427.008 Research Center for Child Mental Development Paradis, P. [email protected] 414.068 Chiba University Monash University Osipowicz, K. Drexel University 401.079 Parellada, M. Hospital General Universitario Gregorio 217.004 Marañón Osmanaj, D. City, University of London 422.036 Parenteau, C. University of California, San Francisco 401.083 Osuna, A. University of California Santa Barbara 427.023 Paris Perez, J. King’s College London, Institute of Psychiatry, 414.004 427.012 Otto, S. R. [email protected] 434.032 Psychology and Neuroscience University of Nevada, Reno Parish-Morris, J. Children’s Hospital of Philadelphia 320.001 320.004 Ouimet, M. Neurodiversité 401.088 425.007 425.041 427.042 425.045 443.008 443.041 Ousley, O. Emory University School of Medicine 401.076 Ouyang, X. Affiliated Shenzhen Maternity & Child 436.001 Park, E. Massachusetts General Hospital 422.051 Healthcare Hospital Park, H. Boston Medical Center 437.013 Owens, H. CHILDREN’S HOSPITAL LOS ANGELES 422.075 Park, M. Nottingham Trent University,Monash University 425.039 Ozonoff, S. University of California at Davis, MIND Institute 208.003 415.015 Malaysia 415.018 419.020 Park, S. Y. Brigham Young University 401.070 434.021 O’Sullivan, J. Mater Private Hospital 429.007 Park, Y. Icahn School of Medicine at Mount Sinai 302.003 431.001 Parker, L. Brigham Young University 443.017 443.043 P Parker, R. Massachusetts General Hospital and Harvard 427.020 Pac, S. Western University 434.028 Medical School Pacheco, D. Syracuse University 435.010 Parker, T. C. Yale University School of Medicine 406.016 440.005 441.024 Pagani, M. [email protected] 208.002 Parkes, L. University of Manchester 434.031 Functional Neuroimaging Lab, Centre for Neuroscience and Cognitive Systems Parkington, K. B. [email protected] 443.031 University of Waterloo Pagni, B. [email protected] 401.006 412.012 Arizona State University Parladé, M. V. University of Miami 414.007 418.005 419.028 Pagoni, P. MRC Integrative Epidemiology Unit, Bristol 423.004 Parlatini, V. King’s College London 217.004 Medical School, University of Bristol 424.001 Parmaksiz, D. Marcus Autism Center 324.003 406.013 Paige, M. Towson University 401.081 415.028 Palacios, E. University of California, San Francisco 434.002 Parmar, A. Massachusetts General Hospital 420.001 Pallathra, A. A. [email protected] 430.003 Parner, E. University of Aarhus 309.002 Catholic University of America Parr, J. Newcastle University 217.004 318.003 Palmer, M. King’s College London, Institute of Psychiatry, 217.004 414.004 410.002 414.009 Psychology and Neuroscience 422.035 422.063 414.047 418.014 427.012 446.012 422.062 427.002 Palmer, N. DBMI - Harvard Medical School 437.005 427.007 429.017 Palomo, R. Universidad Complutense de Madrid 425.043 429.044 442.021 442.042 Pan, P. Karolinska Institutet 429.039 Parsons, O. University of Cambridge 411.019 Panchani, D. King’s College London 425.036 Parsons, T. Autism Research Centre, University of 314.001 Panda, P. All India Institute of Medical Sciences 327.003 Cambridge Pandey, J. [email protected] 307.002 320.004 Parviainen, T. Finnish Association for Autism and Aspergers 427.025 Children’s Hospital of Philadelphia 415.027 415.039 Syndrome 443.008 444.009 Parvinchi, D. McMaster University 413.010 Pandey, R. All India Institute of Medical Sciences 406.005 Pasca, S. Stanford University, 223.004 Pandey, S. Sangath 425.015 425.024 Pasco, G. King’s College London 226.001 308.003 Pandina, G. Janssen Research & Development 230.003 404.005 414.054 Panganiban, J. University of California Los Angeles 417.017 415.001 415.024 Panjwani, A. Purdue University 419.009 Pasqualotto, A. University of Trento 426.004 Panzeri, S. Istituto Italiano di Tecnologia 412.010 Passos-Bueno, M. Instituto de Biociências, Universidade de São 407.001 Paulo

188 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Paszek, K. San Diego State University 426.044 Pennacchio, L. Lawrence Berkeley National Lab 205.004 Patel, H. King’s College London 404.005 Penner, K. [email protected] 426.013 426.031 University of California, Santa Barbara Patel, K. Vanderbilt University 443.020 Pennington, R. University of North Carolina 443.029 446.016 Patel, R. The Hospital for Sick Children 310.001 Pereira, A. C. Institute of Psychiatry, Psychology and 217.002 Patel, S. Université du Québec à Montréal 414.065 Neuroscience, King’s College London Patel, V. [email protected] 425.001 425.005 Pereira, G. School of Public Health, Curtin University 309.002 Harvard Medical School 425.016 425.024 607.004 Pereverzeva, D. Moscow State University of Psychology and 413.029 Patenaude, P. T. McGill University 412.004 Education Paterson, A. University of Toronto 310.001 Perez, G. Mass General Hospital/Harvard Medical School 422.051 Pathapati, N. University of Texas Health Science Center at 403.004 Perez, L. University of Pennsylvania 430.003 San Antonio Perez Crawford, T. University of Missouri Kansas City School of 210.003 Patterson, G. University of Denver 319.001 414.058 Medicine,Children’s Mercy Kansas City 440.006 Perez Liz, G. [email protected] 308.001 425.026 Pattison, E. Monash University 414.081 Drexel University 425.028 425.029 Paula, C. s. [email protected] 401.058 422.025 425.044 Universidade Presbiteriana Mackenzie 422.029 425.026 Perez-Cano, L. STALICLA SL 303.004 327.004 425.028 425.029 Perin, C. University of Milano-Bicocca, School of 401.052 425.044 427.009 Medicine and Surgery Pauly, R. Greenwood Genetic Center 303.004 Perochon, S. J. Duke University,Ecole Normale Supérieure 207.003 312.001 Pavlopoulou, G. Anna Freud Centre/UCL Brain Sciences,UCL 326.003 422.032 Paris-Saclay 406.003 446.013 446.019 Pavlov, A. Marcus Autism Center 414.006 Perrin, E. Duke University School of Medicine 312.001 406.003 Pawar, P. University of Alabama at Birmingham 401.073 446.013 446.019 Perrin, J. M. Harvard Medical School 442.017 Paxton, A. University of Connecticut 413.058 Perry, A. York University 225.001 225.002 Paxton, A. Indiana University School of Medicine 414.080 225.003 225.004 Payne, C. Atlanta Speech School 403.005 Perry, C. M. University of North Carolina at Chapel Hill 437.015 Pazol, K. Centers for Disease Control and Prevention, 401.045 Perry, K. Holland Bloorview Kids Rehabilitation Hospital 426.003 National Center on Birth Defects and 419.001 Perry, L. K. University of Miami 413.060 414.007 Developmental Disabilities 418.005 446.015 Pearl, A. Penn State Hershey/Penn State College of 401.036 Pervanidou, P. School of Medicine, Aghia Sophia Children’s 231.002 Medicine Hospital, National and Kapodistrian University Pearson, A. University of Manchester 427.040 of Athens Pearson, A. University of Sunderland 422.032 Perzolli, S. University of Trento 415.017 426.004 Peck, F. Boston Children’s Hospital 435.009 426.037 Pecukonis, M. G. [email protected] 413.052 Pesaladinne, A. Purdue University 422.001 Boston University,Center for Autism Research Peterson, J. L. University of Washington 427.043 Excellence Peterson, M. Brigham Young University 434.018 Pedapati, E. University of Cincinnati College of 406.018 406.025 Medicine,Cincinnati Children’s Hospital Medical 415.030 415.032 Petkova, S. P. MIND Institute University of California Davis 102.002 Center 429.020 School of Medicine 403.006 Pedersen, K. A. Maine Medical Center 446.007 Petrill, S. The Ohio State University 422.040 Pellecchia, G. The Hospital for Sick Children 310.001 Petroski, G. University of Missouri 427.013 Pellecchia, M. University of Pennsylvania 214.003 Petrulla, V. Florida International University 425.041 442.011 Pettine, W. W. Yale University 412.003 Pelletier, J. Boston University 311.002 Pettygrove, S. [email protected] 442.045 Pelletier, T. New York University 413.016 University of Arizona Pellicano, E. [email protected] 401.028 Peura, C. Spring Harbor Hospital 211.003 Cooperative Research Centre for Living with 401.064 446.004 Autism (Autism CRC),Macquarie University 446.007 Pelphrey, K. University of Virginia 405.004 422.021 Peyrin, C. LPNC, Univ. Grenoble Alpes, Univ. Savoie 436.005 429.018 Mont Blanc, CNRS Pelton, M. Coventry University 232.002 315.003 Pezzimenti, F. Vanderbilt University Medical Center 231.003 Peña, S. San Diego State University 415.040 434.015 401.083 Pfeiffer, B. Temple University 401.048 Penev, Y. Stanford University 437.001 Pham, H. Institute for Exceptional Care 442.010 Peng, H. University of Oxford 434.022 Phan, J. Brock University 401.077 Peng, M. Carnegie Mellon University 226.002

189 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Phelps, R. Oregon Health & Science University 414.046 Podda, J. Italian Multiple Sclerosis Foundation,Istituto 412.010 Italiano di Tecnologia Philibert-Lignieres, G. McGill University 411.018 413.047 Podestá, I. Licenciatura en fonoaudiología, EUTM, 425.009 Philip-Montillot, V. INSERM U1000 443.033 UDELAR Philippe, A. Necker Hospital 443.033 Pokoski, O. University of Wisconsin-Madison 419.023 Phillips, A. University of Southern California 442.031 Poliakoff, E. University of Manchester 412.011 412.013 443.012 Phillips, J. M. Stanford University 319.004 Politi, P. University of Pavia 419.024 Phillips, R. A. University of Western Ontario 441.039 Polizzi, M. University of Naples Federico II 231.002 Phillips, S. Curtin University 311.003 Polzer, L. Goethe University Frankfurt / Department of 322.001 Piatti, A. Ghent University 426.015 Child and Adolescent Psychiatry Pickard, H. [email protected] 228.003 Pomales, A. Michigan State University 446.018 King’s College London Pompan, E. [email protected] 426.011 Pickard, K. Emory University School of Medicine; Marcus 304.001 422.049 University of Oregon Autism Center,JFK Partners, University of 427.014 442.027 Pomponio, A. Temple University 401.048 Colorado Anschutz Medical Campus 442.028 Ponteduro, M. King’s College London 217.002 Pickering, S. Seattle Children’s Hospital 427.030 427.043 Poole, D. University of Manchester 412.011 Pickles, A. King’s College London, Institute of Psychiatry, 228.003 313.001 Psychology and Neuroscience 313.002 315.001 Poon, B. University of British Columbia 419.011 401.049 414.004 Popa, D. Louisville Automation & Robotics Research 443.029 415.024 422.035 Institute, University of Louisville 446.016 427.012 429.021 429.030 Porcelli, A. Unknown Affiliation 306.001 Pierce, K. [email protected] 327.001 Portolese, J. T. [email protected] 231.002 University of California, San Diego Clinical Hospital Pierucci, J. St. Mary’s University 442.038 Posada, M. Institute of Rare Diseases Research, Instituto 427.025 Pietraszczyk-Kędziora, B. Gdanskie Centrum Zdrowia Sp z o.o. 410.007 de Salud Carlos III 436.003 Pileggi, M. Marcus Autism Center 401.076 Poto, N. Asperger/Autism Network 427.027 Pilkington, A. Department of Forensic and 226.001 Potros, M. Drexel University 401.018 Neurodevelopmental Sciences, Institute of 412.006 Potter, M. [email protected] 226.001 Psychiatry, Psychology and Neuroscience, Stellenbosch University 425.013 King’s College London Poulin, M. UQAT 401.016 401.040 Pincus, J. Emory University School of Medicine, Marcus 439.011 Poulsen, R. E. University of Queensland 302.001 Autism Center 444.006 Poustka, L. University Medical Center Goettingen 427.025 441.006 Pincus, M. Rutgers University 412.007 Povey, C. [email protected] 427.025 Pini, K. University of Delaware 443.045 The National Autistic Society Pinkava, W. College of Staten Island, City University of 425.033 Powell, H. Institute of Psychiatry, Psychology and 440.003 New York Neuroscience Pinti, P. Birkbeck College 444.007 Powell, P. S. Centers for Disease Control and Prevention, 401.045 Pinzino, M. CETRA 442.046 National Center on Birth Defects and Pirovano, R. Villa Santa Maria Foundation 441.032 Developmental Disabilities Pisani, L. Child Study Center, Yale University School of 435.015 Powell, S. Université de Sherbrooke 401.016 Medicine 441.024 Prasad, S. Taysha Gene Therapies 206.002 Piscitelli, D. University of Milano-Bicocca, School of 401.052 Prendergast, K. University of California Davis 403.010 Medicine and Surgery,McGill University Prescott, K. University of Wisconsin - Madison 413.030 Pitchford, E. Iowa State 437.003 441.050 Preston, A. Loma Linda University 422.045 Pittard, C. Children’s Mercy Kansas City 210.003 Preston, G. M. Axial Therapeutics, Inc. 434.005 Piven, J. University of North Carolina 307.002 308.004 Pretti, N. Istituto Italiano di Tecnologia 411.017 320.001 415.027 415.039 441.005 Pretzel, R. University of North Carolina - Chapel Hill 401.045 441.043 441.046 Pretzsch, C. M. IoPPN King’s College London 215.003 443.041 Prieve, B. Syracuse University 435.010 Pizzano, M. University of California, Los Angeles 414.017 Prigge, M. D. [email protected] 434.012 Plate, S. [email protected] 320.004 Developmental Network Neurobiology 434.018 Center for Autism Research, Children’s Hospital Laboratory, University of Utah of Philadelphia Prinsen, J. [email protected] 303.002 Plavnick, J. B. Michigan State University 441.047 KU Leuven 435.006 Pliatsikas, C. University of Reading 434.011 Printen, M. T. Rush University Medical Center 443.053 Pochareddy, S. Yale University 208.001

190 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Procyshyn, T. University of Cambridge 303.001 Railey, K. S. Emory University School of Medicine and 311.004 414.006 Children’s Healthcare of Atlanta Prokofyev, A. MEG-Center, Moscow University of Psychology 434.024 and Education (MSUPE) Rajendran, G. Heriot-Watt University 443.009 Prosperi, M. [email protected] 423.002 Raju, R. National Institute of Mental Health and 413.039 University of Pisa,IRCCS Fondazione Stella 424.002 Neurosciences Maris Ramappa, S. University of California, Los Angeles,Dept 414.058 Protho, T. F. Purdue University 414.096 439.017 of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles Protzner, A. University of Calgary 434.029 Ramesh, B. University of Pennsylvania 447.004 Provenzani, U. University of Pavia 419.024 Ramirez, A. University of Texas Rio Grande Valley 422.029 Provenzano, G. University of Trento 208.002 Ramirez-Celis, A. UC Davis 424.003 Prud’hommeaux, E. Boston College 413.014 ramos-Quiroga, j. Hospital Universitari Vall d’Hebron 429.013 429.036 Pruett, J. R. Washington University School of Medicine 307.002 308.004 Ramsay, G. Emory University 224.001 224.002 443.041 224.003 Pugliese, C. E. Children’s National Hospital 422.021 422.022 Ramsey, R. K. [email protected] 414.053 414.074 422.053 The Ohio State University Pullenayegum, E. The Hospital for Sick Children 442.029 Rancano, K. M. Friedman School of Nutrition Science and 437.010 Punukollu, M. University of Glasgow 217.004 Policy, Tufts University Putnam, O. University of North Carolina at Chapel Hill 414.082 Randall, S. Cincinnati Children’s Hospital Medical Center 427.044 Putri, M. Monash University 401.063 Randeniya, R. The University of Queensland 412.009 Puts, N. A. King’s College London 217.003 307.004 Rangel, J. University of Kansas Medical Center 426.017 412.006 432.001 Rankin, J. A. University of Pennsylvania, Perelman School 414.064 440.003 of Medicine Q Ranzino, E. Lousiana State University 414.001 Qi, Z. University of Delaware,Massachusetts Institute 413.007 Rao, L. NIMHANS 403.002 of Technology Rasga, C. Instituto Nacional de Saúde Doutor Ricardo 427.025 Qian, Y. Kaiser Permanente 325.003 429.032 Jorge Qin, Y. School of Medicine, Tsinghua University 406.026 Rashmi, H. Dairy Microbiology Division, ICAR- National 423.003 Qiu, X. Jiangxi Provincial Children’s Hospital 404.006 Dairy Research Institute, Queensland Twin Adoles- Queensland Brain Institute, The University of 423.010 Rasin, R. Rutgers University, RWJ Medical School 302.003 cent Brain Project, T. Queensland Rast, J. Drexel University 222.001 328.001 Quigley, K. Northeastern University 446.004 422.028 Rattazzi, A. PANAACEA 401.058 422.025 Quintin, E. McGill University 411.010 411.016 422.029 425.026 411.018 413.047 425.028 425.029 418.018 418.025 425.044 607.008 426.014 443.038 Ratto, A. B. Children’s National Hospital 422.019 422.021 Quirbach, M. Autism Speaks 310.001 422.022 R Rau, S. Children’s National Hospital 414.014 Rauen, C. Federal University of Paraná 442.006 442.047 Rabenstein, K. East Sussex healthcare Trust 401.062 Rausch, A. Donders Institute for Brain, Cognition and 307.001 Rabin, S. Bar-Ilan University 443.011 Behaviour, Radboud University Nijmegen Rad, F. University of Medicine and Pharmacy “Carol 419.015 Medical Centre Davila”,“Prof. Dr.Alex. Obregia” Psychiatry Rava, J. Office of Autism Research Coordination 422.065 Hospital (OARC) Rader, D. University of Pennsylvania 401.054 430.003 Ravel, D. Neurochlore 410.001 410.007 Radhoe, T. A. University of Amsterdam 401.021 401.046 Ravi, M. UMass Children’s Hospital 414.076 401.094 414.051 Ravichandran, C. McLean Hospital 427.001 427.032 Rafla, M. King’s College London 425.036 Ravindran, V. [email protected] 427.042 Rahaman, F. U. Bangabandhu Sheikh Mujib Medical University 401.074 Floreo, Inc. Rahbar, M. H. The University of Texas Health Science Center 419.008 419.015 Rawot, E. University of Pennsylvania 401.054 430.003 at Houston 419.025 Ray, L. University of Nevada, Reno 434.032 Rahman, M. University of Southern California 309.001 Raymond, L. A. Boston University 414.044 Rai, D. Population Health Sciences, Bristol Medical 401.013 409.001 School, Centre for Academic Mental 422.012 423.004 Razaghzadeh, A. University of California, Davis 443.046 Health,Avon & Wiltshire Partnership NHS Trust 424.001 429.015 Rea, H. University of Washington 406.014 414.079 441.022 426.036 426.044 Rai, R. Rutgers University 414.030 414.059 Rea, M. M. Marquette University 414.095 443.022

191 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Reach-ASD Team, T. Manchester University NHS Foundation Trust 427.040 Richards, J. Rowan University 401.067 429.009 Ready, A. Sheppard Pratt 401.059 Richards, J. University of South Carolina 435.008 Realpe, A. X. University of Bristol 409.001 422.012 Richdale, A. L. [email protected] 401.103 414.083 La Trobe University 429.043 Reaven, J. JFK Partners, University of Colorado Anschutz 304.001 422.049 Medical Campus 427.014 442.028 Richetin, S. Lausanne University Hospital 441.045 Richey, J. A. Virginia Tech 426.035 Rebecchini, G. University of Perugia 415.023 Ridderinkhof, K. University of Amsterdam 411.008 Rechtman, E. INSERM U1000, Institut Imagine 443.033 Riecken, C. University of Missouri 406.002 Reddy, C. AIIMS 406.006 Rieth, S. R. San Diego State University 415.019 446.006 Reddy, V. Cambridge and Peterborough NHS Foundation 442.021 Trust Righi, G. The Warren Alpert Medical School of Brown 327.002 University Reeder, J. Oregon Health Authority 446.020 Rigoli, F. City, University of London 418.024 Reetzke, R. Kennedy Krieger Institute 413.043 423.009 Riiff, A. Children’s Hospital of Philadelphia 443.008 Reeves, K. Wake Forest University Health Sciences 423.007 Riley, K. D. Seattle Children’s Research Institute 414.049 414.079 Regan, A. School of Nursing and Health Professions, 309.002 University of San Francisco Rimmer, C. McGill University 411.016 411.018 413.047 Regehr, L. Brigham Young University 429.001 Rinaldi, M. L. Center for Autism and Related Disabilities 427.005 Reich, K. BBW Abensberg 401.095 Rinaldo, E. York University 429.005 Reichenberg, A. Icahn School of Medicine at Mount Sinai 309.002 325.004 Ring, P. University of Southern California 441.031 Hospital Rivard, M. Université du Québec à Montréal 414.065 Reid, K. Cumbria, Northumberland Tyne and Wear NHS 429.046 Foundation Trust Rivas Vazquez, L. Oregon Health & Science University 446.020 Reid, M. Catholic University of America 406.015 Rivera, S. M. University of California, Davis 302.004 440.008 Reider, A. Duke University 425.038 Rizzo, S. Fondazione Paideia 442.003 Reilly, A. University of Minnesota 425.032 Rob, P. Newcastle University 422.062 Reinhart-Mercer, L. Duke Center for Autism and Brain Development 409.003 Roberts, J. Griffith University 426.021 Reisinger, D. Cincinnati Children’s Hospital Medical Center 427.044 Roberts, J. University of South Carolina 414.094 Reken, J. S. University of Missouri 422.020 442.013 435.008 Rempel, G. Athabasca University 401.001 439.004 439.007 Rennie, O. The Hospital for Sick Children 310.001 310.002 Roberts, W. s. isand 401.077

Rentschler, L. University of North Carolina - Chapel Hill 317.003 417.014 Robertson, A. University of Glasgow 232.001 232.002 Robertson, B. Creighton University School of Medicine 403.009 Restuadi, R. Institute for Molecular Bioscience, The 423.010 Robertson, C. Dartmouth College 202.004 217.001 University of Queensland 404.002 Retico, A. Istituto Nazionale di Fisica Nucleare, Pisa 402.001 Robins, D. L. Drexel University 308.001 414.053 Reuter, M. The Hospital for Sick Children 310.001 414.074 415.004 415.010 415.026 Reyes, N. M. JFK Partners, University of Colorado Anschutz 304.001 419.001 415.038 441.001 Medical Campus 427.014 442.028 Robinson, B. Centers for Disease Control and Prevention, 401.045 Reynolds, A. University of Colorado School of Medicine 415.021 429.028 National Center on Birth Defects and Developmental Disabilities Reynolds, J. Telethon Kids Institute 227.001 Robinson, E. Harvard School of Public Health 205.003 205.004 Rezende, T. Santa Casa de São Paulo School of Medical 429.037 309.003 441.013 Sciences Robinson, J. MRC Integrative Epidemiology Unit, Bristol 424.001 Riaz, A. University of Wisconsin - Madison 441.029 441.055 Medical School, University of Bristol Riby, D. Durham University 322.004 417.039 Robinson, J. School of Psychological Sciences, University 401.029 439.015 of Melbourne,Centre for Youth Mental Health, 429.004 Ricci, M. Iona College 425.023 Orygen Ricciardelli, P. University of Milano - Bicocca, Italy 414.061 Robinson Rosenberg, C. University of Colorado / JFK Partners 419.001 Ricciardi, C. MIT 217.001 Robison, A. Michigan State University 316.002 Riccio, A. The Graduate Center, City University of New 417.016 417.028 Robison, J. E. William & Mary 102.005 York (CUNY) 422.031 422.072 Rocca, A. Washington University in St. Louis 312.002 Riccio, M. University of Naples Federico II 231.002 Rocchetti, M. University of Pavia 419.024 Rice, L. C. American University 412.016 Rocchi, A. CETRA 442.046 Richards, E. Purdue University 439.017 Rocha, J. Tufts University 315.002 Richards, G. Newcastle University 232.001 Rochon, V. Université de Sherbrooke 401.016

192 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Rodgers, J. Newcastle University 232.001 232.002 Roshandel, D. The Hospital for Sick Children 310.001 305.003 315.003 Rosier, A. CHU de Rouen and CHU Le Rouvray 410.007 318.003 401.017 410.002 414.009 Rosoli, A. [email protected] 401.058 422.025 418.014 422.062 Organizacion Estados Iberoamericanos 422.029 425.026 427.002 427.006 425.028 425.029 427.010 429.017 425.044 429.044 429.046 Ross, B. University of Michigan 213.002 213.003 442.042 Ross, M. University of Calgary 434.029 Rodrigues, A. Syracuse University 435.010 441.048 Ross, W. Autism Inclusion Resources,Jefferson Center 401.062 Rodriguez, N. Indiana University 427.021 for Autism & Neurodiversity Rodríguez-Herreros, B. Lausanne University Hospital 441.045 Rossion, B. Université de Lorraine, CHRU-Nancy, Service 444.003 Rodriguez-seijas, C. Stony Brook University 429.023 de Neurologie, F-54000, France,Université de Lorraine, CNRS, CRAN - UMR 7039, F-54000 Rodstein, J. UCLA Semel Institute for Neuroscience and 427.016 Nancy, France Human Behavior Rossow, K. Vanderbilt 419.010 Roeder, K. Carnegie Mellon University 205.004 208.001 226.002 Rossow, T. University or Reading 429.042 441.051 Roestorf, A. [email protected] 401.007 401.078 Rotenberg, A. Harvard Medical School 406.011 University of Stirling 401.080 422.036 Roth, E. A. Spalding University 422.018 Roeyers, H. Ghent University 226.001 406.022 Roth, I. Holland Bloorview Kids Rehab 426.003 418.020 426.015 436.003 Rothman, E. [email protected] 222.001 222.003 Rogdaki, M. Institute of Psychiatry, Psychology and 434.027 Boston University School of Public Health 222.004 301.001 Neuroscience, King’s College,Psychiatric Roudbarani, F. H. [email protected] 427.035 Imaging Group, MRC London Institute of York University Medical Sciences, Imperial College Rouhandeh, A. Yeshiva University 439.014 Roge, B. University of Toulouse - Jean Jaures 427.025 Roux, A. A.J. Drexel Autism Institute, Drexel University 222.001 328.001 Rogers, S. J. The Medical Investigation of 414.042 414.101 422.028 Neurodevelopmental Disorders (MIND) Institute, 422.015 426.002 Rovane, A. University of South Carolina 418.003 422.042 UC Davis School of Medicine, University of 429.034 434.006 California Davis 434.021 441.016 Rowe, M. Harvard Graduate School of Education 413.044 446.010 446.021 Rowe, M. University of California, San Francisco 414.057 415.037 434.002 440.003 Rojas, D. Colorado State University 405.003 441.042 Rowe, P. University of Strathclyde 415.011 441.004 Romascano, D. Lausanne University Hospital 441.045 Rowley, S. N. Yale Child Study Center 306.002 Romeo, R. King’s College London, Institute of Psychiatry, 427.012 Roy, E. Université du Québec en Outaouais 401.040 Psychology and Neuroscience Roy, R. Sangath 425.015 425.024 Romero, C. University of Miami 419.028 434.003 Rozumny, B. [email protected] 414.022 441.026 Romero Santo-Tomás, O. Hospital Universitari Vall d’Hebron 429.036 Boston Children’s Hospital Roncadin, C. [email protected] 413.010 Rubenstein, E. [email protected] 401.043 419.001 McMaster Children’s Hospital - Hamilton Health Boston University School of Public Health Sciences Ruble, L. [email protected] 201.003 221.004 Rong, Y. [email protected] 413.022 413.057 Ball State University 417.006 422.047 The Hong Kong Polytechnic University Root, H. [email protected] 439.005 441.007 Rudko, N. The Hebrew University of Jerusalem 426.019 University of Alabama at Birmingham Rudrabhatla, A. Marcus Autism Center, Children’s Healthcare 415.013 415.033 Rosen, N. E. University of California, Los Angeles 313.004 of Atlanta and Emory University School of 415.035 Medicine Rosen, T. JFK Partners 429.023 Ruigrok, A. N. University of Cambridge 314.001 442.008 Rosenan, R. Bar-Ilan University 405.002 Rosenbaum, P. CanChild Centre, McMaster University 413.010 Rum, Y. [email protected] 401.086 Tel Aviv University Rosenberg, B. New York University Tandon School of 417.016 Engineering,Tech Kids Unlimited Rumball, F. [email protected] 218.001 218.003 Oxleas NHS foundation trust 218.004 Rosenberg, S. University of Colorado Anschutz Medical 324.001 415.021 Campus 419.001 437.011 Rumbold, B. La Trobe University 314.003 Rosenberg-Lee, M. Department of Psychology, Rutgers University 412.007 Rusconi, P. University of Surrey 401.055 443.007 Rosenfeld, J. Baylor College of Medicine 430.002 Russell, A. J. University of Bath 401.096 441.009 Rosensweig, C. [email protected] 443.019 The Johns Hopkins University School of Russell, A. Center for Autism Research, Children’s Hospital 320.004 425.041 Medicine of Philadelphia 427.042

193 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Russell, N. C. [email protected] 401.017 401.092 Sakkalou, E. UCL Great Ormond Street Institute of Child 203.004 Brigham Young University 414.032 Health Russo, N. Syracuse University 435.010 441.048 Salandin, A. Fondazione Paideia 442.003 Salem, A. Oregon Health & Science University 413.019 Russo-Ponsaran, N. M. Rush University Medical Center 443.049 Salinas, A. University of Wisconsin-Madison 419.023 Rust, G. Florida State University 442.039 Salinas, G. [email protected] 442.040 Rutter, T. M. Seattle Pacific University 406.014 427.030 University of California, Riverside 427.043 Salloum-Asfar, S. [email protected] 431.002 Ryali, S. Stanford University 434.026 Qatar Biomedical Research Institute (QBRI), Ryan, K. Eunice Kennedy Shriver Center, University of 311.002 HBKU, Qatar Foundation Massachusetts Medical School Salomone, E. University of Milan-Bicocca 414.054 442.003 Ryan, V. Drexel University 414.074 Ryu, J. University of California, Los Angeles 443.022 Salvitti, T. Research Coordination and Support Service, 427.025 Istituto Superiore di Sanità S Salzer, M. Temple University 401.036 401.048 Saade, S. Université du Québec à Montréal 425.006 425.018 Sam, A. [email protected] 323.001 443.050 425.033 Frank Porter Graham Child Development 447.003 Saarimäki, H. Tampere University 434.010 Institute Sabatos-DeVito, M. Duke Center for Autism and Brain Development 406.012 409.003 Samborn, S. University of Calgary 422.070 418.002 435.014 Samms-Vaughan, M. E. The University of the West Indies, Mona 419.025 443.003 446.002 Campus Sabini, K. University of California, Santa Barbara 427.023 Sample, E. Oregon Health & Science University 414.046 Sabourin, K. R. [email protected] 429.028 University of Colorado Anschutz Medical San Jose Caceres, A. Institute of Psychiatry, Psychology and 217.004 Campus Neuroscience, King’s College London Sachdev, P. The Johnson Center for Child Health and 422.016 Sanchez, M. Emory University 403.005 Development Sanchez, M. S. University of California Davis 414.011 Sacrey, L. Glenrose Rehabilitation Hospital 415.005 Sanchez, V. E. Boston Children’s Hospital 402.002 Sadaka, Y. Ministry of Health 419.021 Sanchez, Y. University of Texas Health Science Center at 403.004 Sadik, A. Avon and Wiltshire Mental Health Partnership 423.004 424.001 San Antonio NHS Trust Sanchez Perez, P. Department of Special Needs Education, 413.018 Sadikova, E. University of Virginia 442.016 University of Oslo Sadka, N. [email protected] 210.001 Sancimino, C. R. UCSD School of Medicine, Autism Center of 412.007 La Trobe University Excellence Saemundsen, E. State Diagnostic and Counseling Center 427.025 Sandbank, M. P. The University of Texas at Austin 216.001 216.002 216.003 Sáez, C. DBMI - Harvard Medical School,Instituto 437.005 Sanders, B. W. Oregon Health & Science University 446.020 Universitario de Tecnologías de la Información y Comunicaciones (ITACA), Universitat Sanders, K. Product Development Neuroscience, F. 418.002 Politècnica de València (UPV) Hoffmann-La Roche Ltd. Safar, K. Hospital for Sick Children 319.003 434.008 Sanders, S. J. UCSF School of Medicine 205.004 208.001 233.003 234.002 Safari, T. UCLA Medical Center 207.001 227.002 404.003 Safer-Lichtenstein, J. University of Oregon 426.011 Sandin, S. Icahn School of Medicine at Mount Sinai 309.002 Sagiv, K. SocialMind Ltd.,KerenOr 447.006 Sandoval, S. New Mexico State University 413.012 Sagon, A. Boston Children’s Hospital,Suffolk University 402.002 Sanghvi, D. Ummeed Child Development Center 425.004 Sahin, M. [email protected] Sanguino, H. University of Calgary 429.011 429.035 Boston Children’s Hospital/Harvard Medical 406.011 Sangwan, P. Sangath 425.005 425.024 School Sanner, C. M. Loma Linda University 422.045 Saini, T. UC Irvine 427.020 Santamaria, N. Motivatea 425.003 Sairam, S. [email protected] 426.006 Maya Clinic Santhanam, S. Metropolitan State University of Denver 422.037 Sait, M. Western University 315.004 Santhanam, S. Metropolitan State University of Denver 401.081 Saito, M. [email protected] 231.002 406.020 Santhosh, M. Seattle Children’s Research Institute 409.002 413.049 Department of Neuropsychiatry, Graduate 414.035 414.102 414.079 429.018 School of Medicine, Hirosaki University Santos, L. Federal University of Paraná 442.006 442.047 Saito, M. Hokkaido University of Education, Sapporo 413.064 Santulli, M. East Tennessee State University 426.008 Saitovitch, A. INSERM 443.033 Sakamoto, Y. Department of Neuropsychiatry, Graduate 406.020 414.102 School of Medicine, Hirosaki University

194 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Sapey-Triomphe, L. Leuven Autism Research (LAuRes), KU 412.001 Schauder, K. Children’s National Hospital 414.014 Leuven,Laboratory of Experimental Psychology, Schauer, J. University of California, Davis 424.003 Department of Brain and Cognition, Leuven Brain Institute, KU Leuven Schechter, J. Duke ADHD Program, Duke University Medical 406.012 Center Sapiro, G. Duke University 207.003 230.002 312.001 406.001 Scheeren, A. [email protected] 312.004 401.061 406.003 446.002 Vrije Universiteit 441.054 446.013 446.019 Scheerer, N. Western University 315.004 441.020 Sapra, S. All India Institute of Medical Sciences 406.005 441.030 441.041 Sargent, C. [email protected] 439.010 441.044 University of Washington Scheibner, H. University of Vermont 401.053 Sargent, Z. University of Virginia 422.030 443.047 Scheive, N. Indiana University Purdue University - 414.066 Indianapolis Sariyanidi, E. Center for Autism Research, Children’s Hospital 207.002 Schena, D. University of Massachusetts, Lowell 427.027 443.039 of Philadelphia Sarkany, A. Eotvos Lorand University,Argus Cognitive, Inc. 446.014 Schendel, D. E. Aarhus University 309.002 325.004 401.075 427.025 Sarkar, N. Vanderbilt University 414.043 Sarn, N. B. Cleveland Clinic Foundation,Case Western 302.002 Scherer, S. The Hospital for Sick Children 310.001 310.002 University Saro, H. Massachusetts General Hospital - Lurie Center, 427.001 Scherr, J. Nationwide Children’s Hospital 439.016 Lexington, MA Schertz, H. H. Indiana University 304.004 425.027 Saron, C. [email protected] 440.008 Schetter, P. UC Davis 201.004 417.021 UC Davis Saroukhani, S. The University of Texas Health Science Center 419.025 Schietecatte, I. Ghent University 418.020 at Houston Schieve, L. A. Centers for Disease Control and Prevention 429.028 Sasson, N. J. University of Texas at Dallas 235.003 443.006 Schillingsburg, A. May Institute 401.076 Schiltz, H. K. Marquette University 306.001 406.023 Sato, N. Fukushima University 427.008 418.009 429.019 Satterstrom, F. K. Massachusetts General Hospital,Broad Institute 205.004 435.011 of MIT and Harvard Schirling, H. University of Vermont 401.053 Saulnier, C. A. Marcus Autism Center, Children’s Healthcare 439.011 Schjolberg, S. Norwegian Institute of Public Health 414.049 of Atlanta and Emory University School of Schlink, A. J. [email protected] 414.023 Medicine University of California, Los Angeles Saunders, G. W Sussex Parent Carer Forum 442.021 Schloesser, R. Sheppard Pratt 401.059 Savage, L. C. PEERS lab: UCLA PEERS Clinic 427.015 Schmid, S. University of Western Ontario 403.001 403.012 Savage, M. [email protected] 427.028 427.039 440.004 441.039 University of North Texas Schmidt, E. K. Boston University 311.001 323.004 Savickaite, S. [email protected] 446.025 University of Glasgow Schmidt, R. J. [email protected] 415.018 419.004 University of California Davis 419.005 419.016 Sawyer, A. Centre for Addiction and Mental Health 429.002 419.019 419.020 Sax, C. San Diego State University 213.001 419.022 Scahill, L. Marcus Autism Center 401.076 414.091 Schmitt, L. M. Cincinnati Children’s Hospital Medical 406.018 406.025 Center,University of Cincinnati College of 427.044 441.027 Scarlett, C. North Tyneside CCG 427.007 Medicine Scarpa, A. [email protected] 221.003 414.038 Schneider, K. University of Luxembourg 418.023 Virginia Polytechnic Institute and State 426.035 426.036 University Schneider, V. Universidade Federal de Minas Gerais 415.007 Scarvie, K. Rady Children’s Hospital San Diego 213.001 Schoenenberger, P. Roche Pharma Research and Early 410.005 Development, Roche Innovation Center Scattoni, M. Istituto Superiore di Sanità 427.025 442.003 Schrantee, A. Amsterdam University Medical Centers, location 307.003 Scerif, G. University of Oxford 439.009 439.012 Academic Medical Center

Schaaf, C. P. Baylor College of Medicine 310.002 Schreuer, N. University of Haifa 401.105 Schaaf, R. Thomas Jefferson University 401.091 440.003 Schuchard, J. Children’s Hospital of Philadelphia 414.020 Schuck, R. K. University of California, Santa Barbara 417.030 426.013 Schachar, R. The Hospital for Sick Children 413.027 434.014 426.031 441.044 Schultz, R. T. Children’s Hospital of Philadelphia 207.002 307.002 Schaer, M. University of Geneva 444.002 308.004 320.001 Schäfer, T. Goethe-University Frankfurt am Main 215.003 434.017 320.004 415.027 415.039 441.005 Rivierduinen Institute for Mental Schalbroeck, R. 307.003 429.015 441.043 443.008 Healthcare,Maastricht University 443.041 444.009

195 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Schulz, S. E. [email protected] 440.004 441.028 Servatius-Oosterling, I. Karakter Child and Adolescent Psychiatry 414.063 426.030 Western University 441.039 University Center Schumann, C. M. UC Davis 403.014 Servili, C. World Health Organization 442.003 Schwartz, I. Medical Genetics Service/HCPA, Genetics 231.002 Sestan, N. Yale School of Medicine 208.001 Department/UFRGS Setien, I. Hospital Universitari Vall d’Hebron 429.013 429.036 Schwartz, J. Harvard T.H. Chan School of Public Health 309.001 Schwartz, S. Utah State University 414.052 Seto, M. Research Center for Child Mental Development 427.008 Chiba University Schwartz, S. Boston University 102.004 413.031 414.099 Sewwandi, L. Department of Disability Studies ,Faculty of 447.001 Medicine ,University of Kelaniya Schwartzman, B. Vanderbilt University 401.090 Seymour, J. York ASD Partnership 401.077 Schwartzman, J. M. Palo Alto University 422.048 429.022 429.045 Shabalala, N. J. University of Cape Town 425.038 Scorah, J. McGill University 313.002 Shafer, R. L. University of Kansas 441.040 Scott, A. Centers for Disease Control and Prevention, 401.045 Shaffer, R. Cincinnati Children’s Hospital Medical Center 415.030 415.032 National Center on Birth Defects and 427.044 Developmental Disabilities Shah, P. NIHR Maudsley Biomedical Research Centre 217.004 Scott, B. J. University of Sussex 417.032 Shahabuddin, A. Oregon Health & Science University 414.046 Scott, E. University of Queensland 302.001 Shaham, M. [email protected] 405.002 Scott, K. Western University 440.004 Haifa University Scott, S. King’s College London, Institute of Psychiatry, 414.004 422.035 Shaikh, M. Monash University Malaysia 425.030 Psychology and Neuroscience 427.012 Shakespeare-Pellington, S. The University of the West Indies, Mona 419.025 Seager van Dyk, I. Yale School of Public Health 429.019 Campus Sebat, J. University of California - San Diego 310.001 Shalev, I. Ben-Gurion University 443.026 Seese, S. University of California, Los Angeles 417.038 Shalev, L. [email protected] 427.009 Tel-Aviv University Sefik, E. Emory University 439.011 Shams, S. University of Gothenburg 403.008 Segev-Cojocaru, R. Soroka Medical Center 426.046 Shapiro, K. Cortica Healthcare 404.007 Seguin, D. Western University 434.028 Share-Strom, D. Dori Zener & Associates,Centre for Addiction 401.107 Segura, M. Facultad de medicina 422.025 and Mental Health Segura, P. Child Mind Institute 226.004 231.002 Sharma, R. All India Institute of Medical Sciences 411.002 Seiboth, C. Newcastle University 427.007 Sharma, S. All India Institute of Medical Sciences, New 327.003 411.002 Delhi Seif, A. Western University 441.039 Sharp, W. Marcus Autism Center 429.031 Seifer, V. Autism Speaks 310.001 Shaw, P. Council for Disabled Children 442.021 Seitzman, B. Washington University in St. Louis 307.002 Shea, L. L. A.J. Drexel Autism Institute 328.001 422.028 Selders, K. Thompson Center for Autism and 414.037 427.013 442.012 442.039 Neurodevelopmental Disorders Shefa, J. Institute of Paediatric Neurodisorder and Autism 401.074 Sellick, T. J. Monash University 441.037 (IPNA) Sellitto, T. York University 418.001 Shefer, S. Sheba Medical Center 405.002 Selten, J. Rivierduinen Institute for Mental 307.003 429.015 Shefer - Kaufmann, N. Clalit institute for child development 412.008 Healthcare,Maastricht University Sheinkopf, S. [email protected] 327.002 Semones, O. Virginia Polytechnic Institute and State 305.001 429.025 Women & Infants Hospital University Sheldrick, R. Boston University School of Public Health 228.002 415.008 Seng, G. National Taiwan University Hospital,National 426.018 426.045 Taiwan University Shemovski Thomas, B. Dori Zener & Associates 401.107 Sengupta, K. Ummeed Child Development Center 328.004 425.004 Shen, L. School of Medicine, Tsinghua University 406.026 Shen, S. Boston University,Center for Autism Research 413.031 413.052 Senturk, D. UCLA 202.001 322.002 Excellence 435.009 435.014 443.025 Shen, Y. Columbia University 430.001 Seo, J. University of California Davis 403.010 Shenouda, J. [email protected] 419.017 Seow, H. Yale University 202.001 435.009 Rutgers NJ Medical School 435.014 435.015 Shephard, E. Institute of Psychiatry, Psychology and 414.054 426.029 443.025 Neuroscience, King’s College London 429.026 Sereno, M. San Diego State University 434.015 Shepherd, H. The University of Manchester 412.013 Seris, N. University of Cape Town 425.038 Sherman, H. Massachusetts General Hospital 414.031 414.097 Serret, S. CHU Children Hospital of Nice 410.001 Sertie, A. L. Hospital Israelita Albert Einstein 407.001 Sherrod, G. University of Alabama at Birmingham 401.073

196 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Sherwood, K. University of Michigan 213.002 213.003 Silleresi, S. UMR 1253, iBrain, Université de Tours, 406.027 Inserm,Department of Psychology, University of Shevchuk, S. College of Staten Island, CUNY 422.031 Milano-Bicocca Shic, F. Seattle Children’s Research Institute 202.001 322.002 Silove, N. University of Sydney 426.021 322.003 409.002 Silverman, J. MIND Institute University of California Davis 403.006 414.049 414.079 School of Medicine 435.009 435.014 435.015 443.025 Silverman, L. University of Rochester Medical Center 413.014 Shields, G. University of Manchester 425.015 Simantov, T. Ben-Gurion University of the Negev 443.016 Shih, A. Autism Speaks 228.003 419.027 Simcoe, K. Vanderbilt University Medical Center- Treatment 221.002 422.044 426.018 and Research Institute for Autism Spectrum 426.045 Disorder Shih, W. I. University of California, Los Angeles 214.003 305.002 Simhal, A. Child Mind Institute 226.004 231.002 410.006 417.019 422.071 426.001 Siminerio, S. Rose F. Kennedy Center, Children’s Evaluation 427.022 426.032 and Rehabilitation Center; Montefiore Medical Shikako-Thomas, K. McGill University 419.027 422.044 Center Simmons, D. R. [email protected] 441.002 441.014 Shil, A. Ben Gurion University,National Autism 430.004 University of Glasgow 446.025 Research Center Simmons, R. Duke University 425.038 443.003 Shillington, A. Cincinnati Children’s Hospital Medical Center 429.006 429.020 442.001 Simmons, Z. Brigham Young University 401.092 414.032 Shim, J. Simon Fraser University 442.037

Shimizu, E. Research Center for Child Mental Development 427.008 Simon, A. Trinity University 421.001 Chiba University Simon, N. Massachusetts General Hospital 427.032 Shinkawa, H. Hirosaki University 414.035 419.003 Simon, T. Wake Forest Institute for Regenerative 423.006 423.008 Shire, S. Y. University of Oregon 214.002 228.003 Medicine 304.003 426.001 426.032 Simonoff, E. King’s College London, Institute of Psychiatry, 204.004 401.049 Psychology and Neuroscience 414.004 422.035 Shlyakhova, A. HSE University 413.029 422.063 427.012 Shore, S. M. Adelphi University 422.037 429.021 429.030 Shu, Y. Kaiser Permanente Southern California 309.001 442.008 446.012 Sims, A. Michigan State University 401.045 Shulman, C. [email protected] 401.024 The Hebrew University of Jerusalem Sinai, Y. [email protected] 426.024 Bar-Ilan University Shulman, L. H. Rose F. Kennedy Center, Children’s Evaluation 427.022 and Rehabilitation Center; Montefiore Medical Singappuli, P. NIHR Maudsley Biomedical Research Centre 217.004 Center Singer, E. Vanderbilt University Medical Center 404.004 Shultz, S. Marcus Autism Center, Children’s Healthcare 324.003 415.028 Singh, S. C. University of Missouri-Kansas City 428.001 of Atlanta and Emory University School of 434.030 439.011 Medicine 444.006 Singh, S. Harbor-UCLA Medical Center 428.001 Shurtz, L. UCLA 409.002 Singh, S. All India Institute of Medical Sciences, New 327.003 Delhi Shyu, M. University of Miami 414.007 446.015 Singh, T. University of Utah 429.024 Sideridis, G. [email protected] 415.029 Singhi, P. Post Graduate Institute of Medical Education 401.030 Boston Children’s Hospital/Harvard Medical and research School Sinnamon, J. Oregon Health & Science University 206.003 Sideris, J. University of Southern California 321.004 414.084 Siper, P. M. Seaver Autism Center for Research and 414.057 414.093 415.003 441.010 Treatment, Department of Psychiatry, Icahn 415.037 435.013 442.031 School of Medicine at Mount Sinai Hospital 439.014 439.018 Sidorov, M. Children’s National Hospital 209.004 403.013 Sipos-Galvez, L. Hospital General Universitario Gregorio 217.004 Marañón Siegel, M. Maine Medical Center - Tufts School of 211.003 446.004 Medicine - Spring Harbor Hospital,Maine 446.007 Siracusano, M. [email protected] 231.002 Medical Center - Tufts School of Medicine University of Rome Tor Vergata Sihna, R. All India Institute of Medical Sciences, New 327.003 Sirci, F. STALICLA SL 327.004 Delhi Sirsikar, A. University of Connecticut 414.077 Sikich, L. Duke Center for Autism and Brain Development 409.003 414.055 Sivathasan, S. McGill University 411.010 411.016 418.002 419.013 414.018 414.019 419.026 419.029 418.018 429.031 443.003 Sizoo, B. B. Dimence 232.003 Silkey, M. Personalised Health Care, F. Hoffmann-La 414.029 Roche Ltd Skepnek, E. Southwest Autism Research & Resource 414.036 Center

197 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Skinner, S. Greenwood Genetic Center 303.004 Sobota, K. Harimata Sp. z.o.o. 441.004 Sklar, V. University of California, Los Angeles 422.017 429.003 Sohl, K. [email protected] 328.004 422.020 University of Missouri, School of Medicine 427.013 442.013 Slater, D. Roche Pharma Research and Early 446.017 442.014 442.025 Development. Roche Innovation Center Basel, Hoffmann-La Roche Soke, G. N. Centers for Disease Control and Prevention 429.028 Slaughter, J. Vanderbilt University Medical Center 426.008 Soker-Elimaliah, S. City University of New York,College of Staten 415.002 441.008 Island, City University of New York Slonims, V. Guy’s & St Thomas’ NHS Foundation Trust 414.004 422.035 (Evelina Children’s Hospital) 427.012 Solari, E. [email protected] 417.007 417.040 Curry School of Education University of Virginia Slot, M. University Medical Center Utrecht 217.004 Solish, A. Holland Bloorview Kids Rehabilitation Hospital 426.003 Slowinska, K. University of Sussex 401.057 Solomon, M. The Medical Investigation of 208.003 302.004 Smallman, R. University of Manchester 427.040 Neurodevelopmental Disorders (MIND) Institute, 313.003 401.004 Smernoff, Z. University of Pennsylvania 401.054 UC Davis School of Medicine, University of 401.035 414.101 California Davis 429.034 434.006 Smit, A. K. Accare Child and Adolescent Psychiatry or 417.004 425.006 434.021 443.052 University of Groningen Solomon, O. University of Southern California 422.008 422.075 Smit, P. Stellenbosch University 425.013 Solorzano, R. Floreo, Inc. 427.042 Smith, A. M. Stemina Biomarker Discovery 406.008 Solouki, L. [email protected] 401.101 427.024 Smith, B. University of Southern California 207.001 227.002 UCLA Semel Institute for Neuroscience and Smith, C. J. Southwest Autism Research & Resource 412.005 412.012 Human Behavior Center 414.036 Somerville, M. University of Edinburgh 443.013 Smith, D. Olivet University 422.006 Sondheimer, N. The Hospital for Sick Children 310.001 Smith, D. College of Staten Island, CUNY 425.021 Sondhi, V. All India Institute of Medical Sciences, New 423.003 Smith, D. Curtin University 401.041 Delhi Smith, E. Brigham Young University 401.070 Song, A. Children’s National Hospital 310.004 422.021 Smith, I. Virginia Tech 211.004 Song, A. Y. Johns Hopkins Bloomberg School of Public 325.003 419.004 Health 419.022 Smith, I. M. [email protected] 310.001 313.001 Dalhousie University / IWK Health Centre 313.002 415.005 Song, C. University of Miami 446.015 422.023 426.003 Song, J. Wucailu 413.042 426.038 429.027 Song, L. Johns Hopkins Bloomberg School of Public 419.022 442.029 Health Smith, J. Geisinger Autism & Developmental Medicine 321.001 Institute Song, W. Temple University 442.012 Smith, J. Baylor College of Medicine,Texas Children’s 422.019 422.069 Song, X. Chinese University of Hong KOng 413.011 Hospital Soong, W. College of Medicine, National Taiwan University 426.018 426.045 Smith, J. University of Utah 213.002 213.003 Soorya, L. [email protected] 413.033 414.028 Rush University Medical Center 443.053 446.014 Smith, K. University of South Carolina 414.094 439.004 Sorgato, P. University of Milan-Bicocca 442.003 Smith, L. University of Oslo 426.009 Soriano, J. P. University of Louisville 443.029 Smith, M. University College London 444.007 Soriano, J. KU Leuven 303.002 Smith, M. University of Michigan 213.002 213.003 Sorokin, A. Moscow State University of Psychology and 413.029 Education,Haskins Laboratories Smith, P. University of Cambridge 443.026 Sotelo, K. University of Quebec in Outaouais,Autism 422.068 441.023 Smith, S. University of Oxford 434.022 Research Group, CIUSSS du Nord-de-l ’Île- de-Montréal Smith, T. University of Rochester Medical Center 305.002 Sotgiu, S. University of Sassari 231.002 Smith, V. R. University of Alberta 426.040 Soubramanian, S. South West London St.George’s Mental Health 303.001 Smith DaWalt, L. E. University of Wisconsin-Madison Waisman 213.002 213.003 NHS Trust Center 213.004 401.022 Soucy, A. Boston Children’s Hospital 430.001 Smulders, T. Newcastle University 322.004 Soulieres, I. Université du Québec à Montréal 401.088 422.068 Smyrnis, N. National and Kapodistrian University of Athens 411.014 425.007 425.045 Snijder, M. Radboud University Medical Centre, 414.063 443.055 Donders Institute for Brain, Cognition and South, M. [email protected] 401.017 401.070 Behavior,Karakter Child and Adolescent Brigham Young University 401.092 414.032 Psychiatry University Centre 418.027 429.001 SNM, A. University of Mysore 408.002 443.017 443.043 Snyder, A. Washington University School of Medicine 307.002 Soutullo, O. Children’s National Hospital 228.001 So, W. C. [email protected] 413.011 Souza, A. L. STALICLA SA 303.004 The Chinese University of Hong Kong

198 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Souza, L. Universidade Federal de Minas Gerais 415.007 Stanfield, A. University of Edinburgh 217.004 401.015 Spain, D. King’s College London, Institute of Psychiatry, 218.003 Stanish, H. University of Massachusetts- Boston 414.055 419.026 Spanos, M. [email protected] 312.001 406.003 419.029 Duke Center for Autism and Brain Development 406.012 409.003 Stanley, R. Marquette University 305.004 418.002 443.003 446.002 446.013 Stanutz, S. McGill University 411.010 446.019 Staples, K. Texas Woman’s University 437.003 437.007 Sparapani, N. J. University of California, Davis 305.002 417.020 417.029 Starnawska, A. Center for Genomics and Personalized 325.001 325.004 Spence, S. J. [email protected] Medicine, CGPM, and Center for Integrative Boston Children’s Hospital Sequencing, iSEQ,The Lundbeck Foundation Spiegel, A. Johns Hopkins University 217.001 Initiative for Integrative Psychiatric Research, iPSYCH,Aarhus University Spratt, P. UCSF 234.002 State, M. W. University of California San Francisco 233.004 Springer, P. E. Stellenbosch University 226.001 425.013 Staunstrup, N. Center for Genomics and Personalized 325.001 325.004 Srihari, V. Yale University School of Medicine 429.012 444.005 Medicine, CGPM, and Center for Integrative Srikar, M. National Institute of Mental Health and 413.039 Sequencing, iSEQ,Aarhus University,Psychosis Neurosciences Research Unit, Aarhus University Hospital,The Lundbeck Foundation Initiative for Integrative Srinath, S. NIMHANS 403.002 Psychiatric Research, iPSYCH Srinivasan, S. University of Connecticut 441.015 443.023 Stavrinos, D. University of Alabama at Birmingham 401.073 443.024 St Pourcain, B. Population Health Sciences, Bristol Medical 441.022 Stavropoulos, K. K. University of California Riverside 402.003 427.029 School, MRC Integrative Epidemiology 427.033 Unit,Donders Institute for Brain, Cognition and Steacy, C. SIMmersion, LLC 213.002 Behaviour, Radboud University,Max Planck Steele, J. Yerkes National Primate Research Center, 403.005 Institute for Psycholinguistics Emory University St. John, T. University of Washington 320.001 415.027 Steele, M. Cortica Healthcare 404.007 415.039 443.041 Steeman, S. University of Pennsylvania 401.054 Staal, W. Karakter Child and Adolescent Psychiatry 426.030 University Center,Leiden University,Radboud Stefanov, R. Institute for Rare Diseases 427.025 University Medical Center, Donders Institute for Steffgen, G. University of Luxembourg 413.061 418.023 Brain, Cognition and Behaviour, Department of Cognitive Neuroscience Steiman, M. Azrieli Center for Autism Research, Montreal 313.001 419.027 Stabile, M. [email protected] 401.012 414.060 Neurological Institute-Hospital 422.044 University of Connecticut 434.019 Steinbeck, L. Center for Autism Research, Children’s Hospital 207.002 414.078 Stadler, W. Technical University of Munich 412.013 of Philadelphia Stadnick, N. University of California, San Diego,Child and 437.008 Steinbrenner, J. [email protected] 213.004 317.003 Adolescent Services Research Center,UC University of North Carolina at Chapel Hill 323.001 401.022 San Diego Dissemination and Implementation 427.028 443.050 Science Center 447.003 Stagg, C. University of Oxford 434.031 Stephenson, K. G. [email protected] 210.002 414.075 Nationwide Children’s Hospital Stagg, S. Anglia Ruskin University 425.002 443.002 Stercq, F. Université libre de Bruxelles 443.014 Stahl, S. UNC TEACCH Autism Program 401.084 Stergiakouli, E. MRC Integrative Epidemiology Unit, Bristol 401.013 423.004 University of California, Davis Stahmer, A. C. 201.004 214.003 Medical School, University of Bristol 424.001 304.001 305.002 410.006 414.074 Sterrett, K. T. University of California, Los Angeles 401.099 422.039 415.019 417.021 426.042 417.033 426.002 Stessman, H. Creighton University School of Medicine 403.009 446.006 446.008 Stevens, C. Yale University School of Medicine 435.012 441.024 Stainbrook, A. [email protected] 221.002 426.008 Stevens, C. Broad Institute of MIT and Harvard 205.004 Vanderbilt University Medical Center- Treatment and Research Institute for Autism Spectrum Stevens, M. University of Missouri 414.037 Disorder Stevens, M. Hartford Hospital 434.019 Staines, A. [email protected] 427.025 Stevenson, R. A. [email protected] 315.004 411.003 Dublin City University University of Western Ontario 413.056 440.004 Stallworthy, I. [email protected] 308.004 443.041 441.020 441.028 Institute of Child Development, University of 441.039 441.041 Minnesota 441.044 Stewart, D. Center for Autism Research Excellence 413.052 Stamm, C. Massachusetts General Hospital 427.032 Stewart, G. R. [email protected] 218.002 401.008 Stancu, M. University of Medicine and Pharmacy “Carol 419.015 Institute of Psychiatry, Psychology and 401.039 401.093 Davila”,“Prof. Dr.Alex. Obregia” Psychiatry Neuroscience, King’s College London 401.106 Hospital

199 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract

Stewart, M. Heriot-Watt University 429.008 443.009 Suarez, S. Pacific University 413.009 Steyaert, J. G. Leuven Autism Research Consortium 406.024 418.004 Suckling, J. University of Cambridge 434.017 (LAuRes),KU Leuven 435.006 444.003 Sugar, C. 202.001 209.002 Stichter, J. University of Missouri 417.010 427.013 University of California, Los Angeles 322.002 409.002 435.009 435.014 Stivaros, S. M. University of Manchester 434.031 435.015 443.025 Stobbe, G. Seattle Children’s Autism Center 442.024 Suh, M. Ewha Womans University 426.016 Stockwell, K. [email protected] 422.030 422.037 Suhrheinrich, J. San Diego State University 201.004 417.021 University of Virginia 443.047 443.056 Sukhodolsky, D. G. Yale University School of Medicine 306.002 Stoencheva, V. Department of Forensic and 434.027 Sule, A. Department of Psychiatry, University of Neurodevelopmental Sciences, and 303.001 the Sackler Institute for Translational Cambridge Neurodevelopment, Institute of Psychiatry, Sulek, R. Griffith University,Cooperative Research Centre Psychology and Neuroscience, King’s for Living with Autism (Autism CRC) 426.021 College London,Behavioural Genetics Clinic, Sullivan, C. 406.012 Adult Autism Service, Behavioural and Duke University 443.003 Developmental Psychiatry Clinical Academic Sullivan, N. Boston Children’s Hospital Group, South London and Maudsley Foun 414.028 Sullivan, S. Population Health Sciences, Bristol Medical Stoffers, M. University of Delaware 417.005 423.004 424.001 School, Centre for Academic Mental Health 429.015 Stojanoski, B. Western University 441.020 441.041 Sultan, S. Singer and Sultan: Consultants Plus+ 441.044 429.007 Stokes, M. A. Deakin University 401.029 429.004 Suma, K. University of Georgia 415.026 Sumiya, F. Universidade de São Paulo (USP) 231.002 Stolar, O. [email protected] 419.021 Sumner, R. Johns Hopkins All Children’s Hospital Assaf Harofeh Medical Center 414.050 Sun, L. [email protected] Stoll, M. Michigan State University 414.024 Indiana University 425.027 Stone, C. Vanderbilt University Medical Center 210.004 308.002 Sun, N. University of California San Francisco 233.004 Stone, W. L. University of Washington 214.001 414.040 Sun, T. Michigan State University 442.032 427.031 Stoodley, C. J. [email protected] 412.016 Sung, K. UCLA Semel Institute for Neuroscience and 427.016 427.024 American University Human Behavior Storch, E. Baylor College of Medicine 443.044 Suominen, A. University of Turku 309.002 Stormont, M. University of Missouri, Columbia 417.010 Supekar, K. Stanford University School of Medicine 434.026 Stover, K. [email protected] 426.023 Super, H. Catalan Institution for Research and Advanced 322.001 University of Toronto Studies

Straiton, D. Michigan State University 442.004 446.018 Surgent, O. J. University of Wisconsin - Madison 434.023 441.029 441.055 Strang, J. F. [email protected] 310.004 422.021 Susko, M. Dalhousie University 415.005 Children’s National Hospital Suswaram, S. University of Kansas 414.016 425.034 Stringer, D. King’s College London, Institute of Psychiatry, 427.012 Psychology and Neuroscience Suto, C. Research Center for Child Mental Development 427.008 Chiba University Stroganova, T. A. [email protected] 434.024 Moscow University of Psychology and Svancara, A. University of Alabama at Birmingham 401.073 Education (MSUPE) Swails, L. University of Kansas Medical Center 414.010 Stroud, J. Child Mind Institute 226.004 231.002 Swain, D. [email protected] 211.002 411.007 Virginia Polytechnic Institute and State 414.042 418.011 Strug, L. The Hospital for Sick Children 310.001 University Strydom, A. King’s College London 217.004 Swaminathan, D. National Institute of Mental Health and 413.039 425.037 Stuart, A. University of Utah 314.002 Neurosciences Stubbert, E. McGill University 411.010 Swanson, A. [email protected] 414.043 Vanderbilt University Medical Center Sturm, A. N. Loyola Marymount University 401.090 Swanson, M. R. University of Texas at Dallas,University of North 415.027 415.039 Sturman, M. Michigan State University 413.020 Carolina Styner, M. 307.002 403.005 University of North Carolina Sweeney, J. A. University of Cincinnati College of Medicine 227.004 406.025 415.039 441.027 Su, W. [email protected] 441.015 443.023 Sweeney, M. R. Dublin City University 419.002 University of Delaware 443.024 444.004 Sweeney, M. Dublin City University 427.025 Su, Y. E. Central South University 413.053 413.055 Sweeney, M. University of Missouri 427.020 Su-Feher, L. University of California Davis 403.010 Syed, B. University of Toronto 418.022 Suárez, J. Clínica de pisquiatría pediátrica, Facultad de medicina, Universidad de la Republica 422.025 Symonds, T. Clinical Outcomes Solutions 439.008

200 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Sysoeva, O. [email protected] 439.002 Tang, Q. Indiana University School of Medicine 414.080 Institute of Higher Nervous Activity and Tang, T. [email protected] 413.022 413.057 Neurophysiology The Hong Kong Polytechnic University Szatmari, P. The Hospital for Sick Children 204.002 313.001 Tani, P. University of Helsinki 427.025 313.002 422.023 429.027 442.029 Tao, S. Drexel University 442.012 Szendrey, S. University of North Carolina at Chapel Hill 427.028 Tao, Y. University of Miami 414.007 446.015 Szlamka, Z. King’s College London 442.043 Tarica, M. University of Cagliari and “G.Brotzu” Hospital 231.002 Søholm Hansen, C. The Lundbeck Foundation Initiative for 325.001 Trust Integrative Psychiatric Research, iPSYCH Tarlowe, J. Rutgers University 426.043 T Tarver, J. Aston University 414.004 418.008 427.012 Tablon-Modica, P. York University 427.035 Tassone, A. Massachusetts General Hospital 427.032 Tachibana, Y. National Centre for Child Health and 231.002 Tavassoli, T. University of Reading 414.057 415.037 Development 429.042 441.051 Tachtatzis, C. University of Strathclyde 415.011 441.004 Tafolla Magana, M. University of California, Los Angeles 417.038 426.042 Taverna, E. University of Connecticut 401.012 414.060

Tagavi, D. University of California, Santa Barbara 426.044 427.023 Tayade, P. All India Institute of medical sciences, New 411.002 Delhi, India Tager-Flusberg, H. Boston University 306.004 412.014 Taylor, B. Albert Einstein College of Medicine, Psychiatric 441.011 413.007 413.017 Research Institute at Montefiore-Einstein 413.026 413.031 Taylor, B. [email protected] 446.007 413.044 413.052 Maine Medical Center Research Institute 414.021 414.044 414.099 415.020 Taylor, C. University of Manchester 425.005 425.024 415.022 415.029 441.033 Taylor, C. Centre for Brain and Cognitive Development, 406.017 Taghavi, N. Louisville Automation & Robotics Research 446.016 Birkbeck, University of London Institute, University of Louisville Taylor, C. The Ohio State University 422.067 Tailanian, N. Hospital Pereira Rossell 437.006 Taylor, C. M. Geisinger 221.001 Taillieu, A. KU Leuven 303.002 Taylor, H. Newcastle University 427.007 Takahashi, M. Hirosaki University 414.035 Taylor, J. Brigham and Women’s Hospital 205.003 419.003 Takahashi, N. Fukushima University 427.008 Taylor, J. L. Vanderbilt Kennedy Center 231.003 401.083 426.008 Takahashi, T. University of Missouri 231.002 427.013 Taylor, M. J. University of Toronto,The Hospital for Sick 226.003 319.003 Takow, C. Autism Europe 442.008 Childre,The Hospital for Sick Children 434.008 434.014 Tal, R. Ben Gurion University,National Autism 430.004 Taylor, M. Karolinska Institutet 404.008 Research Center Taylor, S. University of Pennsylvania 401.054 430.003 Talbott, M. R. University of California at Davis MIND Institute 422.015 446.010 Tebartz van Elst, L. University Medical Center - University of 411.014 446.021 Freiburg Talkowski, M. Massachusetts General Hospital,Broad Institute 205.002 205.004 of MIT and Harvard,Harvard Medical School Tecoulesco, V. University of Connecticut 413.038 Talovic, M. Washington University School of Medicine 307.002 Teixeira, M. Universidade Presbiteriana Mackenzie 427.009 Tamang, M. K. The University of Queensland 403.003 Tekola Gebru, B. [email protected] 326.001 425.036 King’s College London 442.043 Tamon, H. National Centre for Child Health and 231.002 Development Teles e Silva, A. Hospital Israelita Albert Einstein 407.001 Tamura, S. UCSF 234.002 Templin, T. University of North Texas Health Science 441.035 Center Tan, L. H. Anglia Ruskin University 443.002 Tena, K. Center for Autism Research, Children’s Hospital 320.004 425.041 Tanas, J. Children’s National Hospital 403.013 of Philadelphia 427.042 Tancredi, D. J. UC Davis School of Medicine 419.020 Tenenbaum, E. Duke Center for Autism and Brain Development 202.002 Tancredi, R. IRCCS Stella Maris Foundation 231.002 414.071 Teo, T. National University of Singapore 401.019 415.023 424.002 Teoh, A. Duke Center for Autism and Brain Development 409.003 Tanda, T. Developmental Pediatrics, Children’s Hospital 304.001 427.014 Terao, Y. Kyorin University 401.027 412.002 Colorado 442.028 Tang, K. [email protected] 414.042 Terhune, L. Cincinnati Children’s Hospital Medical Center 442.023 University of Notre Dame Terrill, W. University of Minnesota 427.038 Tang, L. David Geffen School of Medicine at UCLA 414.057 435.013 Terui, A. Department of Neuropsychiatry, Graduate 406.020 414.102 439.018 School of Medicine, Hirosaki University

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Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Teufel, K. Department of Child and Adolescent Psychiatry, 409.004 414.100 Tomaszewski, B. University of North Carolina at Chapel Hill 213.004 401.022 Psychosomatics and Psychotherapy, University 401.042 401.066 Hospital Frankfurt, Goethe University 401.084 427.028 427.039 443.050 Thacker, S. T. [email protected] 302.002 431.003 Lerner Research Institute of Cleveland Clinic Tomczuk, L. University of Pennsylvania 442.011 Thakkar, K. Michigain State University, Department of 443.021 Tomeny, T. The University of Alabama 414.064 Psychology Toolan, C. K. University of California, Los Angeles 312.003 414.092 The BASIS Team, &. Institute of Psychiatry, Psychology and 404.005 414.054 426.042 Neuroscience, King’s College London 415.009 415.024 Toong, R. Curtin University 429.029 441.025 Torenvliet, C. [email protected] 401.021 401.046 The BASIS-STAARS King’s College London,Centre for Brain and 415.025 University of Amsterdam 401.094 411.008 Team, &. Cognitive Development, Birkbeck, University 414.051 of London Torquati, J. U of Nebraska 324.001 437.011 the BASIS-STAARS Centre for Brain and Cognitive Development, 406.017 Torres, A. University of Texas Rio Grande Valley 401.058 414.067 Team, .. Birkbeck, University of London Torres, E. B. Rutgers University 406.004 414.030 The IBIS Network, .. University of North Carolina 320.001 415.027 414.059 426.043 415.039 441.005 443.022 443.041 Torres-Gomez, S. Montreal Neurological Institute 320.001 443.041 Thielmeyer, A. Indiana University 427.021 Tősér, Z. Argus Cognitive, Inc. 446.014 Thiruvahindrapuram, B. The Hospital for Sick Children 310.001 Toteja, G. Indian Council of Medical Research 406.005 Thisted Horsdal, H. Aarhus University,Big Data Centre for 325.004 Towers, L. University of California, Davis 417.029 Environment and Health, Aarhus University,The Lundbeck Foundation Initiative for Integrative Towle, P. Westchester Institute for Human Development 414.104 Psychiatric Research, iPSYCH Traeger, L. Massachusetts General Hospital 422.051 Thomas, C. American University 412.016 Trafford, L. G. University of Alberta 417.013 Thomas, H. [email protected] 411.007 434.019 Tran, A. David Geffen School of Medicine at UCLA 414.062 University of Connecticut Tran, A. Rady Children’s Hospital 213.001 Thomas, R. P. [email protected] 401.012 413.050 University of Connecticut 414.060 415.010 Tran, C. V. VNU University of Education 414.025 441.001 Transue, S. E. Rowan University 401.067 Thomas, T. University of Iowa 310.004 Travers, B. G. University of Wisconsin - Madison 434.023 441.016 Thompson, C. [email protected] 429.029 441.029 441.053 Curtin University 441.055 Thomsen, P. Aarhus University Hospital, Psychiatry 401.075 Travers, J. University of Nevada, Reno 434.032 Throm, E. V. Centre for Brain and Cognitive Development, 406.017 Tregnago, M. Easterseals Midwest 442.025 Birkbeck, University of London Trelles, M. Seaver Autism Center for Research and 414.057 414.093 Thurm, A. National Institute of Mental Health 231.002 404.003 Treatment, Department of Psychiatry, Icahn 439.018 410.003 414.028 School of Medicine at Mount Sinai Hospital Tian, R. Massachusetts General Hospital 414.031 Trembath, D. [email protected] 426.021 Menzies Health Institute,Cooperative Research Tierney, A. Greenwood Genetic Center 303.004 Centre for Living with Autism (Autism CRC) Tillman, E. University of South Carolina 439.007 Tremblay, K. UQAT 401.040 Tillmann, B. Université Claude-Bernard Lyon1 411.018 Trevisan, D. A. [email protected] 429.012 435.012 Tillmann, J. King’s College London 215.001 215.002 Yale University School of Medicine 440.005 441.024 215.003 215.004 Tricarico, N. College of Staten Island, City University of 425.033 306.003 320.002 New York 321.002 410.005 425.040 432.001 Troiani, V. Geisinger Autism & Developmental Medicine 321.001 434.004 434.022 Institute 441.017 442.008 Trollor, J. N. Cooperative Research Centre for Living 309.004 401.028 Tilson, C. Helping Hands Inc 426.012 with Autism (Autism CRC),Department of 401.029 401.064 Timpson, C. Brigham Young University 443.017 443.043 Developmental Disability Neuropsychiatry, 414.083 429.004 UNSW Tint, A. Centre for Addiction and Mental Health 401.107 Trost, B. The Hospital for Sick Children 310.001 Tjeertes, J. F. Hoffmann-La Roche Ltd 439.008 Trost, M. University of Kansas 441.021 Todd, T. California State University 401.023 Troxel, M. University of Massachusetts Boston 415.008 Todorov, A. Washington University School of Medicine 307.002 Troy, J. Duke University 443.003 Toivonen, K. Satakunta University of Applied Sciences 447.005 Trudel, M. [email protected] 427.034 Tokish, H. Marcus Autism Center, Children’s Healthcare 415.013 415.033 University of Sherbrooke of Atlanta and Emory University School of 415.035 Medicine Trujillo, Y. UC Irvine 427.020 Truong, K. University of North Carolina 410.004 443.041

202 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Tsai, W. National Taiwan University Hospital 426.018 426.045 Umbricht, D. Roche Pharma Research and Early 410.005 Development, Roche Innovation Center Tsang, M. UCLA David Geffen School of Medicine 227.002 Umesawa, Y. Research Institute of National Rehabilitation 401.027 Tsang, T. University of California, Los Angeles 319.001 Center for Persons with Disabilities,Kyorin Tseng, J. Massachusetts General Hospital,Harvard 420.001 University Medical School Unal, N. Eskisehir Osmangaz University Medical School 441.012 Tseng, N. [email protected] 417.029 Underwood, J. Neurosciences & Mental Health Research 222.002 University of California Institute, Cardiff University Tseng, W. Yale School of Medicine 306.002 406.023 Ung, D. C. Icahn School of Medicine at Mount Sinai 302.003 Tseng, Y. Fu Jen Catholic University 446.009 Ungar, W. The Hospital for Sick Children Research 313.001 313.002 Institute 422.023 426.039 Tsimpli, I. University of Cambridge 413.037 429.027 442.029 Tsiplova, K. University of Toronto / The Hospital for Sick 442.029 Children Unruh, K. E. University of Kansas 227.004 319.002 Tsou, M. Stanford University 437.001 441.021 441.038 Tsuchiyagaito, A. Laureate Instituto for Brain Research, Tulsa, 427.008 Unwin, K. L. [email protected] 222.002 OK, USA Olga Tennison Autism Research Centre, La Tsuzuki, D. Tokyo Metropolitan University 444.004 Trobe University Tunc, B. Center for Autism Research, Children’s Hospital 207.002 Urbiola, E. Hospital General Universitario Gregorio 217.004 of Philadelphia Marañón Turacchi, L. Università degli Studi 231.002 Ure, A. [email protected] 411.015 414.081 Turchi, R. St. Christopher’s Hospital for Children 308.001 Monash University 441.037 Turnacioglu, S. Floreo, Inc. 427.042 Usher, C. University of Bedfordshire 422.032 Turnage, D. M. [email protected] 422.055 Uysal, S. P. Cleveland Clinic 406.011 University of Central Florida Uzefovsky, F. Ben-Gurion University of the Negev 443.016 443.026 Turnbull, D. University of Southern California 422.005 Turner, E. Duke University 425.038 V National Institute of Mental Health and Turner, T. Washington University in St. Louis 205.001 430.001 Vaidhyanathan, P. 413.039 Neurosciences 425.037 Turygin, N. Westchester Institute for Human Development 414.104 Vaidya, C. J. Psychology, Georgetown University 434.009 Twerski, G. The New Jersey Autism Center of Excellence 426.043 Vaillancourt, T. University of Ottawa 313.001 313.002 422.023 429.027 Tybor, D. j. Tufts University 414.055 419.026 Sangath 419.029 Vajaratkar, V. 425.005 425.015 425.024 Tychsen, L. Washington University School of Medicine 307.002 Valagussa, G. Villa Santa Maria Foundation,University of 401.052 441.032 Tye, C. [email protected] 404.005 Milano-Bicocca, School of Medicine and King’s College London Surgery Tyson, G. Microba Life Sciences,Centre for Microbiome 423.010 Valdez, D. Universidad de Buenos Aires- FLACSO 401.058 422.025 Research, School of Biomedical Sciences, 422.029 425.026 Queensland University of Technology 425.028 425.029 Tyushkevich, S. Moscow State University of Psychology and 413.029 425.044 Education Valenzuela Palafoll, M. Hospital Vall d’Hebron 430.002 Valicenti-McDermott, M. d. Rose F. Kennedy Center, Children’s Evaluation 427.022 U and Rehabilitation Center; Montefiore Medical Uddin, L. Q. University of Miami 419.028 434.003 Center van Amelsvoort, T. Maastricht University 307.003 Udhnani, M. Children’s Hospital of Philadelphia 427.042 Van de Water, J. University of California, Davis 219.003 403.010 Ueckert, S. University of Uppsala 321.002 403.014 424.003 Ulerio, C. Tech Kids Unlimited 417.016 van den Boomen, C. Utrecht University 413.006 Uljarevic, M. U. University of Melbourne 321.002 401.029 411.015 414.091 van den Bosch, W. Scelta 232.003 426.005 429.004 van den Hoofdakker, B. University Medical Center Groningen, University 427.019 432.001 of Groningen,University of Groningen Ullmer, P. King’s College London 425.036 Van der Donck, S. [email protected] 406.024 418.004 Ulloa, A. 2Instituto de Investigación Sanitaria Gregorio 217.004 KU Leuven 444.003 Marañón van der Gaag, M. Parnassia Psychiatric Institute 232.003 Ulrich, D. University of Michigan 437.007 van der Merwe, C. Broad Institute of MIT and Harvard 205.003 205.004 Ulrich, H. University of Sao Paulo 407.001 309.003 441.013

203 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Van der Paelt, S. [email protected] 426.015 Vera Carrasquero, V. University of Southern California 442.031 Ghent University Verbalis, A. Children’s National Hospital 422.019 422.021 van der Putten, W. University of Amsterdam,dr. Leo Kannerhuis 414.051 422.022 van Dijk, M. University of Groningen 414.026 Vercesi, M. University of Pavia 419.024 Van Dongen - Boomsma, [email protected] 426.030 435.002 Verghis, T. Sangath 425.015 M. Karakter Child and Adolescent Psychiatry Verhoef, E. Max Planck Institute for Psycholinguistics 441.022 University Center Vernetti, A. Yale University School of Medicine 322.003 443.035 van Donkelaar, M. Max Planck Institute for Psycholinguistics 441.022 Vernon, T. University of California Santa Barbara 427.023 442.033 Van Dyke, J. L. University of Colorado 419.001 442.035 Van Hecke, A. V. [email protected] 306.001 406.023 Vero, J. Rutgers University 443.022 Marquette University 414.095 418.009 Verplanken, B. University of Bath 441.009 429.019 Vettori, S. KU Leuven 102.001 418.004 van Leeuwen, T. Radboud University 435.002 441.034 444.003 Veytsman, E. University of California Riverside 402.003 425.031 van Lier, R. Radboud University 435.002 427.029 427.033 Van Lierde, T. Ghent University 406.022 van Petersen, E. Radboud University 435.002 Vezzoli, J. University of Pittsburgh Medical Center 446.004 Van Rijn, S. Leiden University 401.071 Vibert, B. A. Child Mind Institute 231.002 van Velden, F. Leiden University Medical Center 307.003 Vicente, A. M. Instituto Nacional Saude Doutor Ricardo Jorge 427.025 Van Wesemael, T. KU Leuven 444.003 Vidiksis, R. EDC 417.028 Van Wicklin, C. Massachusetts Institute of Technology 404.002 Vieira, K. Universidade Federal de Minas Gerais 415.007 Vandana, P. Nationwide Children’s Hospital 439.016 Vietze, P. M. Montclair State University 426.012 Vandekar, S. Vanderbilt University Medical Center 406.010 443.020 Viggiano, A. Weill Cornell Medicine Center for Autism and 411.007 413.059 the Developing Brain (CADB) Vanderbilt, D. Children’s Hospital Los Angeles/Keck School of 422.008 Viljoen, M. University of Cape Town 425.038 Medicine of USC Villalobos, M. E. [email protected] 207.004 314.002 Vandewouw, M. [email protected] 226.003 319.003 University of Utah 425.046 University of Toronto,Holland Bloorview Kids 434.008 434.014 Villar, S. [email protected] 401.102 Rehabilitation Hospital,The Hospital for Sick University of Cambridge Children,Hospital for Sick Children Vincent, J. York St. John University 422.072 Vanegas, S. B. Texas State University 414.003 425.010 607.001 Vincenzi, B. F. Hoffmann-La Roche Ltd 439.008 Vangala, S. UCLA Medical Center 207.001 Vinçon-Leite, A. INSERM U1000 443.033 Vanwalleghem, G. University of Queensland 302.001 Violland, P. A-Rep AIMS-2-TRIALS 442.008 Varcin, K. J. [email protected] 426.021 Virnes, M. Autism Foundation Finland 447.005 Griffith University,Cooperative Research Centre Vismara, L. Independent Consultant 426.020 for Living with Autism (Autism CRC) Visscher, P. nstitute for Molecular Bioscience, The 423.010 Varkey, H. Rutgers University 414.059 University of Queensland Vashi, N. [email protected] 422.010 Vitale, L. University of Miami 413.060 446.015 York University Vitiello, B. University of Turin 231.002 Vecchione, R. Drexel University 419.005 Vivanti, G. [email protected] 413.062 415.004 Vedaldi, A. University of Oxford 434.022 Drexel University 426.020 426.024 Veenstra-VanderWeele, J. New York State Psychiatric Institute / Columbia 318.002 418.002 443.048 University Vlaeminck, F. Ghent University 418.020 Vega Garcia, J. University of California, Davis 417.029 Vo, L. Western New England University 401.011 Vehorn, A. Vanderbilt University Medical Center 308.002 419.010 413.048 Vogeley, K. Research Center Jülich,University Hospital 418.010 Vejnoska, S. University of California, Davis 305.002 426.002 Cologne Vogt, D. College of Human Medicine, Michigan State 403.010 Velthuis, H. E. Institute of Psychiatry, Psychology and 217.002 University Neuroscience, King’s College London Voigt, R. Baylor College of Medicine,Texas Children’s 442.044 Venker, C. E. University of Wisconsin-Madison 413.020 Hospital Ventimiglia, J. Drexel University 401.018 410.006 Voinova, V. Research Clinical Institute of Pediatrics 439.002 Volden, J. University of Alberta 442.029 Ventola, P. Yale University School of Medicine 405.004 427.036 Volfovsky, N. Simons Foundation 408.004 430.001 Venuti, P. University of Trento 414.071 415.017 422.050 426.004 426.037 446.003

204 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Volk, H. E. Johns Hopkins Bloomberg School of Public 310.003 325.003 Walum, H. Marcus Autism Center, Children’s Healthcare 415.013 415.033 Health 415.018 419.004 of Atlanta and Emory University School of 415.035 419.005 419.014 Medicine 419.022 Wamsley, B. University of California, Los Angeles 226.002 Volker, M. A. Michigan State University 414.024 Wan, G. Affiliated Shenzhen Maternity & Child 414.097 436.001 Volz, D. F. Hoffmann-La Roche AG 410.005 Healthcare Hospital Vorstman, J. A. The Hospital for Sick Children 310.001 310.002 Wang, A. Emory University 403.005 Vukovic, R. University of Minnesota 422.002 Wang, B. ALSOLIFE 414.056 414.073 Vukusic, S. UC Davis 440.008 Wang, C. Nankai University 312.004 425.035 W Wang, F. Peking University Sixth Hospital 414.087 Waddell, C. Simon Fraser University 313.001 422.023 Wang, H. National Clinical Research Center for Mental 414.072 429.027 442.029 Disorders Waddington, H. Cooperative Research Centre for Living with 426.021 Wang, H. National Taiwan Normal University 225.002 417.035 Autism (Autism CRC),Victoria University of Wellington Wang, J. [email protected] 411.006 Wade, J. W. Adaptive Technology Consulting 414.043 Perking University Wagemans, J. Laboratory of Experimental Psychology, 412.001 Wang, L. Center for Autism Research, Children’s Hospital 207.002 Department of Brain and Cognition, Leuven of Philadelphia 414.078 Brain Institute, KU Leuven Wang, M. University of California, Santa Barbara 426.013 426.031 Wagner, J. B. City University of New York,College of Staten 415.002 415.020 Island, City University of New York 441.008 Wang, P. Simons Foundation 217.004 321.002 Wagner, L. Vanderbilt University Medical Center 210.004 221.002 Wang, T. Central South University 430.001 430.002 308.002 Wainer, A. Rush University Medical Center 422.006 422.040 Wang, W. University of Western Ontario 403.012 422.052 446.014 Wang, Y. University of Maryland, Baltimore 425.017 Waisman, T. University of Calgary 422.037 Wang, Y. Tsinghua University 413.054 Waisman-Nitzan, M. University of Haifa 401.105 Wang, Y. Vanderbilt University Medical Center 304.002 Waite, J. Aston University 418.008 Wang, Z. University of Florida 441.040 Waizbard-Bartov, E. UC Davis 414.101 434.006 Wang, Z. The Hospital for Sick Children 310.001 Warberg, C. Aarhus University 427.025 Walker, H. Seaver Autism Center, Department of 435.013 439.014 Psychiatry, Icahn School of Medicine at Mount 439.018 Ward, E. Donders Institute for Brain, Cognition and 413.006 Sinai Hospital Behaviour Walker, N. E. Kerry’s Place Autism Services 401.077 Ward, H. [email protected] 310.001 DNAstack Walker, S. J. Wake Forest Institute for Regenerative 407.002 423.006 Medicine 423.007 423.008 Ward, J. Brigham Young University 434.012 Ward, N. G. University of Texas at El Paso 413.045 Wall, D. Stanford University 437.001 Ward, O. F. Tufts University 401.087 422.073 Wallace, A. University of Washington 439.003 Wallace, G. The George Washington University 301.003 301.004 Wardak, C. UMR 1253, iBrain, Université de Tours, Inserm 435.005 401.031 401.033 Warnell, K. R. [email protected] 442.005 443.001 422.021 Texas State University Wallace, L. Institute for Molecular Bioscience, The 423.010 University of Queensland,Cooperative Research Warren, S. University of Kansas 426.017 Centre for Living with Autism (Autism CRC) Warren, Z. Vanderbilt University Medical Center 210.004 221.002 Wallis, K. Center for Autism Research, Children’s Hospital 414.078 308.002 414.043 of Philadelphia 419.010 422.066 426.008 Wallisch, A. University of Kansas 201.002 Warreyn, P. Ghent University 406.022 418.020 Walpole, S. Kaiser Permanente 437.008 426.015 Walsh, L. Geisinger 221.001 Warrier, V. University of Cambridge 215.003 445.001 Walsh, M. Arizona State University 401.006 412.005 Washington, P. Stanford University 437.001 412.012 Waters, V. University of North Carolina at Chapel Hill 447.003 Walters, D. Kaiser Permanente 437.008 Watkins, A. Abbeywood Community School 425.043 Walton, K. M. [email protected] 422.040 422.052 Watson, L. R. [email protected] 321.004 414.084 The Ohio State University 422.067 University of North Carolina at Chapel Hill 415.003 Walton-Bowen, K. Clinical Research Associates, LLC 217.004 Weaver, M. University of Utah 429.024 Webb, K. Texas Tech University 443.027

205 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Webb, S. University of Washington 202.001 209.002 Whitney, J. The Hospital for Sick Children 310.001 322.002 406.014 Whittingham, L. Brock University 401.077 409.002 413.049 414.079 429.018 Wickramasekara, R. Creighton University School of Medicine 403.009 435.009 435.014 Wickstrom, J. National Institute of Mental Health 404.003 435.015 439.010 Wiebe, J. Simon Fraser University 443.042 443.025 Wegrzynski, A. The University of Oklahoma 406.025 Wieckowski, A. T. Drexel University 414.074 415.004 415.026 Wei, J. The Hospital for Sick Children 310.001 Wiersema, J. R. Ghent University 406.022 412.015 Wei, Z. Shenzhen Maternity and Child Healthcare 414.097 444.001 444.008 Hospital Wiggins, L. D. Centers for Disease Control and Prevention 321.003 401.045 Weiland, R. Vrije Universiteit 441.054 415.021 419.001 429.028 Weiler, L. University of Minnesota 427.038 Wigham, S. Newcastle University 414.047 429.046 Weimer, A. Texas State University 442.005 Weiner, D. Harvard Medical School 205.003 Wilches, A. FLACSO 425.028 425.044 Weir, E. M. University of Cambridge 301.002 Wild, J. Brigham Young University 443.017 443.043 Weir, R. University College London 403.014 Weisblatt, E. [email protected] 401.102 Wiles, A. Wesley College 442.031 University of Cambridge Wilhelm, F. University of Salzburg 440.007 Weise, J. Department of Developmental Disability 401.028 Wilkinson, C. L. Boston Children’s Hospital 412.014 414.021 Neuropsychiatry, UNSW 415.029 Weiss, J. York University 418.001 422.010 Wilkinson, E. Rutgers University-New Brunswick 231.004 401.011 422.027 422.054 413.048 426.028 427.035 Wilkinson, E. Center for Autism and Related Disabilities 427.005 442.009 Willar, K. A. Psychiatry and Behavioral Sciences, Stanford 427.018 Weiss, O. Surrey Place 225.003 University School of Medicine Weitlauf, A. S. Vanderbilt University Medical Center 210.004 221.002 Willfors, C. [email protected] 439.015 308.002 414.043 Karolinska institutet 422.066 426.008 Willgoss, T. F. Hoffmann-La Roche Ltd. 439.008 Welch, K. C. University of Louisville 443.029 446.016 Williams, D. M. University of Kent 401.003 401.025 Welford, M. King’s College London 425.036 401.078 401.080 Williams, K. Monash Children’s Hospital,Monash University 401.063 413.063 Welsh, D. Geisinger 221.001 414.081 441.037 Welsh, P. Cumbria, Northumberland, Tyne and Wear NHS 318.003 427.002 Williams, P. University of Surrey 442.021 Foundation Trust Williams, R. Children’s National Hospital 228.001 Wen, T. University of California, San Diego 327.001 Williams, S. University of Manchester 434.031 Wentz, C. Wayne State University 441.050 Williams, Z. Vanderbilt University School of Medicine 422.037 426.013 Werling, D. M. University of Wisconsin-Madison 208.001 426.031 429.045 Werninghaus, G. Australian Catholic University 414.081 440.008 441.003 441.018 Wesson, J. Yerkes National Primate Research Center, 403.005 Williamson, J. University of Washington 427.030 Emory University Willsey, A. J. University of California San Francisco 233.004 West, M. Vanderbilt University Medical Center 422.066 Willsey, H. University of California San Francisco 233.004 West, M. J. [email protected] 401.012 University of Connecticut Wilson, C. University of Dublin, Trinity College 429.016 Westberg, L. University of Gothenburg 403.008 Wilson, C. Newcastle University 427.002 427.007 429.044 442.042 Westerhold, C. Seattle Children’s Research Institute 443.025 Wilson, K. P. Towson University 401.081 401.100 Wetherby, A. M. Florida State University Autism Institute 418.007 446.005 Wilson, P. University of Kent 442.021 Weyland, M. Université libre de Bruxelles 419.018 Wilson, R. B. UCLA Medical Center 207.001 227.002 Wheeler, A. RTI International 439.013 Wilson, S. Rutgers University 401.011 White, S. P. Emory University 414.018 414.019 429.031 439.011 Wilson, S. University of Minnesota 429.040 441.027 Wilsson, L. Center of Neurodevelopmental Disorders at 441.034 White, S. The University of Alabama 211.004 418.015 Karolinska Institutet (KIND) 429.033 Wiltshire, G. Curtin University 401.041 Whitehead, S. University of Western Ontario 403.012 Winning, A. Loyola University Chicago 401.038 Whitehouse, A. University of Western Australia 227.001 423.010 426.021 Winter, J. Center for Autism and the Developing Brain 317.002 Whitney, D. University of Michigan 419.014 Winter-van Rossum, I. University Medical Center Utrecht 217.004

206 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Wismel, S. The Hebrew University of Jerusalem 422.003 Wright, B. University of York 203.002 Wisner-Carlson, R. Sheppard Pratt 401.059 Wright, C. Child and Adolescent Mental Health Service, 410.002 414.009 Northumbria Healthcare NHS Foundation Trust 422.062 Witthuhn, N. University of Oregon 414.096 Wright, C. University of Calgary 434.029 Wittke, K. University of Connecticut 413.050 413.058 Wright, J. [email protected] 408.004 430.001 Witwer, A. N. The Ohio State University 414.070 Simons Foundation Wodka, E. L. Center for Autism and Related Disorder, 217.003 Wright, M. Centre for Advanced Imaging, The University 423.010 Kennedy Krieger Institute of Queensland,Queensland Brain Institute, The University of Queensland Wolf, J. Yale University School of Medicine 406.016 412.018 422.033 435.003 Wright, N. Kings College London 313.001 313.002 435.012 441.024 419.027 422.044 444.005 Wolf, M. Cleveland Clinic Lerner Research Institute 316.003 Wright, V. [email protected] 441.049 Holland Bloorview Kids Rehabilitation Hospital Wolff, J. J. University of Minnesota 307.002 308.004 415.039 422.002 Wroczyńska, A. Medical University of Gdansk 442.008 441.005 441.043 Wu, H. School of Medicine, Tsinghua University 406.026 441.046 Wu, H. Taipei Tzu Chi Hospital, Buddhist Tzu Chi 317.001 426.026 Wong, B. Cortica Healthcare 404.007 Medical Foundation Wong, C. Zhongxing Branch of Taipei City Hospital 317.001 Wu, J. Yale Child Study Center 405.004 426.026 Wong, J. University of Toronto 434.014 Wulff, R. UC Davis MIND Institute 401.004 401.035 Wong, N. Biomedical Research Centre for Mental Health 217.002 at the Institute of Psychiatry, Psychology and X Neuroscience and South London and Maudsley NHS Foundation Trust Xiang, A. Kaiser Permanente Southern California 309.001 Wong, P. The Chinese University of Hong Kong 413.001 Xiao, S. Simons Foundation 401.026 401.072 Wong, P. Marcus Autism Center, Children’s Healthcare of 434.030 Xiao, Y. University of California, San Diego 327.001 Atlanta, Emory University Xie, M. Seattle Children’s Research Institute 322.002 Wong, S. McGill University 411.010 Xie, Q. [email protected] 413.053 413.055 Wong, S. National University of Singapore 425.022 Central South University Wong, V. [email protected] 442.010 Xin, J. Foshan Chancheng Central Hospital 406.019 415.006 Stanford University

Wood, C. Towson University 417.031 Xing, J. Northwestern University 413.001 Wood, D. Microba Life Sciences 423.010 Xiong, Y. The Hong Kong Polytechnic University 413.022 413.057 Wood, D. University of Minnesota 427.038 Xu, Q. University of Louisville 422.018 Wood, E. T. University of California, Los Angeles 318.001 Xu, S. Simons Foundation 430.001 Wood, J. University of California, Los Angeles 220.003 422.017 Xu, Y. Cincinnati Children’s Hospital Medical Center 419.006 429.003 Xu, Y. [email protected] 317.004 443.044 University of Illinois at Chicago Wood, R. [email protected] 326.003 Xu, Y. University of California San Francisco 233.004 University of East London Wood, T. University of California, Irvine 417.029 Y Woodruff, B. K. Mayo Clinic Arizona 401.033 Yacoub, N. Montclair State University 427.011 Woodruff, N. E. The University of Oklahoma 406.025 Yakubova, G. [email protected] 417.025 417.037 Woods, S. E. Discover Psychology Services 422.004 University of Maryland Woods, S. University of Manchester 407.003 Yamakado, E. Washington University of St Louis 422.031 Worley, T. [email protected] 418.003 422.042 Yamamoto, K. Kyoto University 411.012 University of South Carolina Yamane, N. Columbia University Irving Medical Center 446.001 Worsham, W. University of Utah 406.021 429.024 Yanchik, A. Montclair State University 426.012 Worthley, E. University of Minnesota 441.005 441.043 Yang, C. East China Normal University 425.006 Woynaroski, T. G. Vanderbilt University Medical Center 216.001 216.002 Yang, C. Boston College 413.014 216.003 324.004 441.018 Yang, C. Western University 441.041 441.044 Wray, N. Cooperative Research Centre for Living with 423.010 Autism (Autism CRC),Institute for Molecular Yang, J. UCLA 417.038 426.042 Bioscience, The University of Queensland Yang, J. Simon Fraser University 443.042 Wren-Jarvis, J. University of California, San Francisco 434.002 Yang, X. Tufts University 401.098

207 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Author Name Institution / Email Address Abstract Yang, Y. Lingnan Normal University 425.032 Yurkovic, J. R. Indiana University 415.030 415.032 Yang, Y. University of Nevada, Reno 434.032 Yusuf, A. Azrieli Center for Autism Research, Montreal 228.003 419.027 Yankowitz, L. D. Children’s Hospital of Philadelphia 320.004 414.020 Neurological Institute-Hospital,McGill University 422.044 Yap, C. X. Mater Research Institute, The University of 423.010 Queensland,Institute for Molecular Bioscience, Z The University of Queensland,Cooperative Zachariasse, J. Erasmus MC - Sophia Children’s Hospital, 437.005 Research Centre for Living with Autism (Autism University Medical Center,DBMI - Harvard CRC) Medical School Yaqub, M. Amsterdam University Medical Centers, location 307.003 Zacharov, O. University of Oslo 411.009 VU Medical Center Zachor, D. A. [email protected] 401.086 419.021 Yates, E. Curtin University 401.041 Tel Aviv University /Shamir (Assaf Harofeh) 422.003 426.010 Yaylaci, F. Bursa Dortcelik Children Hospital 441.012 Medical Center Yazdanbakhsh, A. Boston University 411.001 Zadok, E. [email protected] 443.011 Yechimovitz Bendet, O. Ben-Gurion University of the Negev 414.013 Bar-Ilan University Yee, Y. Hospital for Sick Children 233.001 Zaheer, J. Centre for Addiction and Mental Health 429.002 Yerys, B. E. Center for Autism Research, Children’s Hospital 301.003 444.009 Zahorodny, W. W. [email protected] 419.017 of Philadelphia Rutgers New Jersey Medical School Yi, A. Foshan Chancheng Central Hospital 406.019 415.006 Zaidman-Zait, A. Tel-Aviv University 313.001 313.002 422.023 429.027 Yi, L. Peking University 411.006 442.029 Yin, L. Children’s Hospital Los Angeles/Keck School of 422.008 Zajic, M. C. Teachers College, Columbia University 417.007 417.040 Medicine of USC Yin, T. Peking University Sixth Hospital, National 411.006 Zammit, S. Division of Psychological Medicine and Clinical 423.004 424.001 Clinical Research Centerfor Mental Disorders Neurosciences,Cardiff University 429.015 Yliherva, A. University of Oulu 427.025 Zamora, M. Autismo Sevilla 425.043 Yoder, P. J. Vanderbilt University 426.002 Zampella, C. J. [email protected] 207.002 320.004 Children’s Hospital of Philadelphia 414.078 443.008 Yolton, K. Cincinnati Children’s Hospital Medical Center 419.006 Yon Hernández, J. University of Salamanca 436.003 Zane, E. FACE Lab, Emerson College,James Madison 413.046 Yoo, H. The University of Alabama 224.003 University Yorke, I. [email protected] 422.063 429.021 Zanon, R. B. Federal University of Rio Grande do Sul 425.012 King’s College London, Institute of Psychiatry, 429.030 446.012 Zapparoli, B. Boston Children’s Hospital 225.001 Psychology and Neuroscience Zappia, K. J. Cincinnati Children’s Hospital Medical Center 429.006 429.020 Yorozuya, K. Hokkaido University 413.064 Yorozuya, R. Hokkaido University of Education, Sapporo 413.064 Zarrei, M. The Hospital for Sick Children 310.001 Yoshida, K. Department of Neuropsychiatry, Graduate 406.020 Zaupa, C. University of trento 415.017 School of Medicine, Hirosaki University Zavadak, J. Drexel University School of Medicine 415.004 You, X. Children’s National Hospital 434.009 Zbozinek, T. California Institute of Technology 440.007 Young, G. University of California at Davis, MIND Institute 446.010 Zeinner, M. Cincinnati Children’s Hospital Medical Center 442.023 Youngstrom, E. University of North Carolina at Chapel Hill 414.091 Zeleke, W. [email protected] 425.008 607.007 Yousaf, A. Goethe University Frankfurt 215.003 Duquesne University Yu, C. University of Texas at Austin 415.030 415.032 Zemon, V. Ferkauf Graduate School of Psychology, 441.011 Yeshiva University Yu, L. [email protected] 406.019 415.006 Zener, D. Dori Zener & Associates 401.107 South China Normal University 425.006 425.011 Zeng, W. University of Texas at Austin 228.004 326.002 425.010 Yu, P. Lausanne University Hospital 441.045 Zentgraf, K. University of Pennsylvania 447.004 Yu, Q. Cleveland Clinic Lerner Research Institute 316.003 Zhang, C. School of Medicine, Tsinghua University 406.026 Yu, T. W. Harvard Medical School 430.001 Zhang, C. Central South University 413.055 Yu, Y. UC Davis MIND institute 422.047 Zhang, E. University of Kansas Medical Center 414.010 Yuan, S. Emory University School of Medicine, Marcus 324.003 406.013 Zhang, J. South China Normal University 406.019 415.006 Autism Center 415.028 Zhang, J. The University of Texas Health Science Center 419.008 430.003 Yucesoy-Ozkan, S. Anadolu University 427.028 at Houston Yudell, M. Drexel University 401.064 Zhang, W. University of Kent 442.021 Yuen, R. The Hospital for Sick Children 310.001 Zhang, Y. Peking University 411.006 Yund, B. University of Wisconsin Milwaukee 306.001 406.023 Zhao, L. Peking University Sixth Hospital 414.087

208 • INSAR 2021 VIRTUAL ANNUAL MEETING • ABSTRACT AUTHOR INDEX Presenting Author Abstract Indicated in Bold — Email Address Displays if Permission to Publish was Selected

Author Name Institution / Email Address Abstract Zhao, X. Massachusetts General Hospital,Broad Institute 205.004 of MIT and Harvard Zheng, J. MRC Integrative Epidemiology Unit, Bristol 424.001 Medical School, University of Bristol Zheng, S. University of California, San Francisco 231.003 401.083

Zhong, C. Drexel University 419.006 Zhou, B. School of Medicine, Tsinghua University 406.026 Zhou, M. S. Yale University School of Medicine 435.012 Zhou, X. Columbia University 430.001 Zhu, H. [email protected] 426.033 Third Affiliated Hospital of SUN YAT-SEN University Zhu, N. Columbia University 430.001 Zhu, Y. Personalised Health Care, F. Hoffmann-La 414.029 Roche Ltd Zhu, Z. Chinese Academy of Sciences,University of 414.056 414.073 Chinese Academy of Sciences Zielinski, B. A. University of Utah 434.012 434.018

Ziermans, T. University of Amsterdam 401.071 Zikopoulos, B. Boston University School of Medicine,Boston 411.001 University Zilbovicius, M. Inserm U1000, institut Imagine 443.033 Ziolkowski, J. McGill University 434.014 Zitter, A. Drexel University 415.026 426.020 427.042 Zodrow, S. Drexel University 401.037 Zou, S. Jiangxi Provincial Children’s Hospital 404.006 Zou, X. The Third Affiliated Hospital of Sun Yat-Sen 426.033 University Zubler, J. Eagle Global Scientific 415.021 Zuckerman, K. Oregon Health & Science University 446.020 Zuddas, A. University of Cagliari and “G.Brotzu” Hospital 231.002 Trust Zulla, R. University of Alberta 422.070 437.014 442.026 Zurcher, N. Harvard Medical School,Massachusetts 420.001 General Hospital Zwaigenbaum, L. University of Alberta 307.002 308.004 310.001 313.001 313.002 320.001 413.010 415.005 415.027 415.039 422.023 426.003 429.027 437.014 441.005 441.043 441.046 442.029 443.041 Zweifach, J. Seaver Autism Center for Research and 414.057 414.093 Treatment, Department of Psychiatry, Icahn 415.037 435.013 School of Medicine at Mount Sinai Hospital

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