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COSYNE 2012 Workshops February 27 & 28, 2012 Snowbird, Utah

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COSYNE 2012 Workshops February 27 & 28, 2012 Snowbird, Utah Monday, February 27 Organizer(s) Location 1. Coding and Computation in visual short-term memory. W.J. Ma Superior A 2. Neuromodulation: beyond the wiring diagram, M. Higley Wasatch B adding functional flexibility to neural circuits. 3. Sensorimotor processes reflected in spatiotemporal Z. Kilpatrick Superior B of neuronal activity. J-Y. Wu 4. Characterizing neural responses to structured K. Rajan Wasatch A and naturalistic stimuli. W.Bialek 5. Neurophysiological and computational mechanisms of D. Freedman Magpie A categorization. XJ. Wang 6. Perception and decision making in rodents S. Jaramillio Magpie B A. Zador 7. Is it time for theory in olfaction? V.Murphy Maybird N. Uchida G. Otazu C. Poo Workshop Co-Chairs Email Cell Brent Doiron, Pitt [email protected] 412-576-5237 Jess Cardin, Yale [email protected] 267-235-0462 Maps of Snowbird are at the end of this booklet (page 32). 1 COSYNE 2012 Workshops February 27 & 28, 2012 Snowbird, Utah Tuesday, February 28 Organizer(s) Location 1. Understanding heterogeneous cortical activity: S. Ardid Wasatch A the quest for structure and randomness. A. Bernacchia T. Engel 2. Humans, neurons, and machines: how can N. Majaj Wasatch B psychophysics, physiology, and modeling collaborate E. Issa to ask better questions in biological vision J. DiCarlo 3. Inhibitory synaptic plasticity T. Vogels Magpie A H Sprekeler R. Fromeke 4. Functions of identified microcircuits A. Hasenstaub Superior B V. Sohal 5. Promise and peril: genetics approaches for systems K. Nagal Superior A neuroscience revisited. D. Schoppik 6. Perception and decision making in rodents S. Jaramillio Magpie B A. Zador 7. Is it time for theory in olfaction? V. Murphy Maybird N. Uchida G. Otazu C. Poo Workshop Co-Chairs Email Cell Brent Doiron, Pitt [email protected] 412-576-5237 Jess Cardin, Yale [email protected] 267-235-0462 2 Schedule Each workshop group will meet in two sessions from 8 to 11 am and from 4:30 - 7:30 pm. Workshop summaries and schedules are available starting on page 3 of this booklet. Transportation Marriott Downtown to Snowbird: Free shuttle provided for registered attendees (leaves @ 5pm on Sunday, 27-Feb). Snowbird to Salt Lake City Airport: Shuttle can also be arranged at Snowbird, or online at: https://store.snowbird.com/products/index.php?product_category_idx=2. Further information about transportation to/from Snowbird is available at: http://www.snowbird.com/about/accessibility.html For further information on transportation or other logistics please contact Denise Soudan ([email protected]). Lift tickets Discounted workshop rates Snowbird Chairlifts only: $62 Snowbird Tram & Chairlifts: $72 Pick up at the Cliff ticket window (level 1 of the Cliff Lodge next to the ski rental shop) or at the ticket window on the top level of the Snowbird Center (the plaza deck). Meals included with registration Breakfast (Day 1 and Day 2) - The Cliff Ballroom Dinner (Day 2) - The Cliff Ballroom Coffee breaks during morning and afternoon sessions 3 Monday, Feb 27 1. Coding and computation in visual short-term memory Organizer Wei Ji Ma, Baylor College of Medicine Visual short-term memory (VSTM) is essential for detecting changes between visual scenes, integrating information across eye fixations, and planning reaching movements. Like other forms of short-term memory, it is generally thought to be resource-limited. As the number of objects to be remembered increases, observer performance on VSTM tasks typically decreases rapidly. A key theoretical debate centers around whether VSTM resource is a discrete or a continuous quantity, and related to this, how the encoding precision of stimuli in VSTM should be modeled. In recent years, converging efforts in psychophysics, systems neuroscience, and mathematical modeling have furthered our understanding of VSTM coding and limitations. Single-neuron recordings in parietal and frontal areas have revealed neural signatures of limited resources, new developments in fMRI are making the decoding of the contents of VSTM possible, and models have reconceptualized VSTM tasks like change detection as probabilistic inference problems. The workshop will present a broad overview of recent developments in the study of VSTM. 4 Monday, Feb 27 Coding and computation in visual short-term memory Morning Session 8:20-8:30am Introduction 8:30-9:00am Ed Awh. Discrete resource limits during encoding, selection and storage 9:00-9:30am George Alvarez. The structure and content of working memory representations 9:30-10:00am Coffee Break 10:00-10:30am Wei Ji Ma. Visual short-term memory limitations from variable, continuous resources 10:30-11:00am Earl Miller. Neural dynamics for working memory and cognitive capacity Afternoon Session 4:30-5:00pm Martin Pare. A change detection approach to study visual working memory in the macaque monkey 5:00-5:30pm Frank Tong. Decoding reveals the contents of visual working memory in early visual areas 5:30-6:00pm Chris Sims. Information theory and visual working memory: A new (old) theoretical foundation for modeling capacity limits 6:00-6:30pm Coffee Break 6:30-7:00pm Robert Jacobs. A probabilistic clustering theory of the organization of visual short-term memory 7:00-7:30pm General discussion 5 Monday, Feb 27 2. Neuromodulation: Beyond the wiring diagram, adding functional flexibility to neural circuits Organizer Michael J. Higley, Yale University Flexibility is a critical property of neural circuits, allowing adaptive changes in activity over a range of time scales and enabling context-dependent behavior. While technological advances have enhanced our understanding of the brain’s “wiring diagram”, increasing attention is being paid to processes that confer dynamic flexibility to established circuits. One such example is neuromodulation, a ubiquitous nervous system phenomenon that spans the phylogenetic spectrum of research models. In contrast to classical fast neurotransmitters that directly excite or inhibit postsynaptic neurons, neuromodulators alter the intrinsic membrane properties of cells and modify synaptic transmission. The actions of modulators like acetylcholine, dopamine, and norepinephrine are critical for cognitive functions including working memory, focused attention, and action selection. Additionally, perturbation of modulatory systems is strongly implicated in psychiatric and neurological illnesses such as schizophrenia, depression, Parkinson’s and Alzheimer’s Diseases. Despite overwhelming evidence for their general importance, the specific cellular and network mechanisms by which neuromodulators influence behavior remain elusive. However, a surge in technological, experimental, and computational advances have opened up new avenues towards understanding the actions of neuromodulators in vitro and in vivo. In this one-day workshop, we bring together neuroscientists working across multiple levels of analysis to discuss recent findings from cellular, circuit, behavioral, and computational perspectives. Key focal questions for discussion will include: (1) What are the relevant time scales for neuromodulatory actions? (2) Is neuromodulation best understood at the cell, circuit, or organismal level? (3) Can activity in distinct neuromodulatory systems be causally linked to specific behaviors? (4) What new methodologies are being developed for the study of neuromodulation? (5) How are neuromodulatory processes best incorporated into computational models? 6 Monday, Feb 27 Neuromodulation: Beyond the wiring diagram, adding functional flexibility to neural circuits Morning Session 8:15-8:30am Michael Higley. Introduction 8:30-9:00am Daniel Durstewitz. Dopamine modulation of prefrontal cortical attractor states revealed by multi-single unit recordings 9:00-9:30am Jeremy Seamans. What do we really know about phasic signaling in the mesocorticolimbic pathway? 9:30-10:00am Coffee Break 10:00-10:30am Xiao-Jing Wang. Complexity of neuromodulation in the prefrontal cortex 10:30-11:00am Randy Bruno. Modulating local circuit dynamics versus long range inputs Afternoon Session 4:30-5:00pm Alexander Thiele. Cholinergic and glutamatergic control of attention in V1: a double dissociation 5:00-5:30pm Martin Sarter. Cholinergic double-duty: top-down control of cortical glutamatergic-cholinergic transients to optimize cure- detection 5:30-6:00pm Michael Higley. Co-release of GABA and acetylcholine: bidirectional control of cortical interneurons 6:00-6:30pm Coffee Break 6:30-7:00pm Karl Deisseroth. Optogenetic neuromodulation: tools and applications 7:00-7:30pm General Discussion and Wrap-up 7 Monday, Feb 27 3. Sensorimotor processes reflected in spatiotemporal patterns of neuronal activity Organizers: Zackeray Kilpatrick, University of Pittsburgh Jian-Young Wu, Georgetown University Abstract Cortical sensory and motor processes are often subserved by spatiotemporal patterns of neuronal activity. Analysis of such activity often considers coarse-grained statistics of the discharges of neuronal networks involved. Recent advances in voltage sensitive dyes, optical imaging, and multi-electrode recording allow population activity to be studied both in vivo and in slice preparations with excellent spatiotemporal resolution. The genesis of coherent neural activity can then be explored using external stimuli, receptor antagonists, and even optogenetic manipulation. Results from these studies then guide experimental and computational models that consider the role dynamics play in functions
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