Big Data, Individual Identity, and the Psychological Necessity of Forgetting Jacquelyn A
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Psychogenic and Organic Amnesia. a Multidimensional Assessment of Clinical, Neuroradiological, Neuropsychological and Psychopathological Features
Behavioural Neurology 18 (2007) 53–64 53 IOS Press Psychogenic and organic amnesia. A multidimensional assessment of clinical, neuroradiological, neuropsychological and psychopathological features Laura Serraa,∗, Lucia Faddaa,b, Ivana Buccionea, Carlo Caltagironea,b and Giovanni A. Carlesimoa,b aFondazione IRCCS Santa Lucia, Roma, Italy bClinica Neurologica, Universita` Tor Vergata, Roma, Italy Abstract. Psychogenic amnesia is a complex disorder characterised by a wide variety of symptoms. Consequently, in a number of cases it is difficult distinguish it from organic memory impairment. The present study reports a new case of global psychogenic amnesia compared with two patients with amnesia underlain by organic brain damage. Our aim was to identify features useful for distinguishing between psychogenic and organic forms of memory impairment. The findings show the usefulness of a multidimensional evaluation of clinical, neuroradiological, neuropsychological and psychopathological aspects, to provide convergent findings useful for differentiating the two forms of memory disorder. Keywords: Amnesia, psychogenic origin, organic origin 1. Introduction ness of the self – and a period of wandering. According to Kopelman [33], there are three main predisposing Psychogenic or dissociative amnesia (DSM-IV- factors for global psychogenic amnesia: i) a history of TR) [1] is a clinical syndrome characterised by a mem- transient, organic amnesia due to epilepsy [52], head ory disorder of nonorganic origin. Following Kopel- injury [4] or alcoholic blackouts [20]; ii) a history of man [31,33], psychogenic amnesia can either be sit- psychiatric disorders such as depressed mood, and iii) uation specific or global. Situation specific amnesia a severe precipitating stress, such as marital or emo- refers to memory loss for a particular incident or part tional discord [23], bereavement [49], financial prob- of an incident and can arise in a variety of circum- lems [23] or war [21,48]. -
The Wandering Mind What the Brain Does When You Are Not Looking the University of Chicago Press, Chicago 2015, Pp
Michael C. Corballis The Wandering Mind What the Brain Does When You are Not Looking The University of Chicago Press, Chicago 2015, pp. 184 It is commonplace to consider mind-wandering as a secondary, useless ac- tivity of our mind to which we guiltily abandon ourselves for laziness or dis- traction. The aim of the book is to show that, far from being the slaves of a blamable indolence, every time we are absent-minded or lost in thought, we are involved in an essential mental activity. Not only is mind-wandering a funda- mental component of our life (whether we want it or not, our mind meanders at night and for half the time during the day), but it also has a constructive and adaptive function that is crucial for facing the contingencies of a complex world. Without a wandering mind we would be stuck in the present, unable to invent stories and to escape the here and now through mental time travel. Mind-wandering takes us into unexplored regions of the unconscious mind that are inaccessible to the conscious will. Not only does this capacity allows us to build and consolidate the sense of our personality but it also helps to multiply our self into imagined possible selves and to expand the range of our experience. Creativity, too, lies in the randomness of mind-wandering, which makes possible unpredictable connections of ideas. The book therefore takes into account different forms of mind-wandering. Mental traveling depends on memory, which provides the material that feeds our imagination. Memory is so important to mind-wandering that some syn- dromes, such as amnesia and hyperthymesia, can impair the ability to mind- travel. -
What Is It Like to Be Confabulating?
What is it like to be Confabulating? Sahba Besharati, Aikaterini Fotopoulou and Michael D. Kopelman Kings College London, Institute of Psychiatry, London UK Different kinds of confabulations may arise in neurological and psychiatric disorders. This chapter first offers conceptual distinctions between spontaneous and momentary (“provoked”) confabulations, as well as between these types of confabulation and other kinds of false memories. The chapter then reviews current explanatory theories, emphasizing that both neurocognitive and motivational factors account for the content of confabulations. We place particular emphasis on a general model of confabulation that considers cognitive dysfunctions in memory and executive functioning in parallel with social and emotional factors. It is argued that all these dimensions need to be taken into account for a phenomenologically rich description of confabulation. The role of the motivated content of confabulation and the subjective experience of the patient are particularly relevant in effective management and rehabilitation strategies. Finally, we discuss a case example in order to illustrate how seemingly meaningless false memories are actually meaningful if placed in the context of the patient’s own perspective and autobiographical memory. Key words: Confabulation; False memory; Motivation; Self; Rehabilitation. 1 Memory is often subject to errors of omission and commission such that recollection includes instances of forgetting, or distorting past experience. The study of pathological forms of exaggerated memory distortion has provided useful insights into the mechanisms of normal reconstructive remembering (Johnson, 1991; Kopelman, 1999; Schacter, Norman & Kotstall, 1998). An extreme form of pathological memory distortion is confabulation. Different variants of confabulation are found to arise in neurological and psychiatric disorders. -
Memory-Modulation: Self-Improvement Or Self-Depletion?
HYPOTHESIS AND THEORY published: 05 April 2018 doi: 10.3389/fpsyg.2018.00469 Memory-Modulation: Self-Improvement or Self-Depletion? Andrea Lavazza* Neuroethics, Centro Universitario Internazionale, Arezzo, Italy Autobiographical memory is fundamental to the process of self-construction. Therefore, the possibility of modifying autobiographical memories, in particular with memory-modulation and memory-erasing, is a very important topic both from the theoretical and from the practical point of view. The aim of this paper is to illustrate the state of the art of some of the most promising areas of memory-modulation and memory-erasing, considering how they can affect the self and the overall balance of the “self and autobiographical memory” system. Indeed, different conceptualizations of the self and of personal identity in relation to autobiographical memory are what makes memory-modulation and memory-erasing more or less desirable. Because of the current limitations (both practical and ethical) to interventions on memory, I can Edited by: only sketch some hypotheses. However, it can be argued that the choice to mitigate Rossella Guerini, painful memories (or edit memories for other reasons) is somehow problematic, from an Università degli Studi Roma Tre, Italy ethical point of view, according to some of the theories of the self and personal identity Reviewed by: in relation to autobiographical memory, in particular for the so-called narrative theories Tillmann Vierkant, University of Edinburgh, of personal identity, chosen here as the main case of study. Other conceptualizations of United Kingdom the “self and autobiographical memory” system, namely the constructivist theories, do Antonella Marchetti, Università Cattolica del Sacro Cuore, not have this sort of critical concerns. -
Metamemory and Memory Discrepancies in Directed Forgetting of Emotional Information
Research Reports Metamemory and Memory Discrepancies in Directed Forgetting of Emotional Information Dicle Çapan a, Simay Ikier b [a] Department of Psychology, Koç University, Istanbul, Turkey. [b] Department of Psychology, Bahçeşehir University, Istanbul, Turkey. Europe's Journal of Psychology, 2021, Vol. 17(1), 44–52, https://doi.org/10.5964/ejop.2567 Received: 2019-12-17 • Accepted: 2020-04-23 • Published (VoR): 2021-02-26 Handling Editor: Rhian Worth, University of South Wales, Pontypridd, United Kingdom Corresponding Author: Dicle Çapan, Koç University, Rumelifeneri Mahallesi, Sarıyer Rumeli Feneri Yolu, 34450 Sarıyer Istanbul, Turkey. E-mail: [email protected] Abstract Directed Forgetting (DF) studies show that it is possible to exert cognitive control to intentionally forget information. The aim of the present study was to investigate how aware individuals are of the control they have over what they remember and forget when the information is emotional. Participants were presented with positive, negative and neutral photographs, and each photograph was followed by either a Remember or a Forget instruction. Then, for each photograph, participants provided Judgments of Learning (JOLs) by indicating their likelihood of recognizing that item on a subsequent test. In the recognition phase, participants were asked to indicate all old items, irrespective of instruction. Remember items had higher JOLs than Forget items for all item types, indicating that participants believe they can intentionally forget even emotional information—which is not the case based on the actual recognition results. DF effect, which was calculated by subtracting recognition for Forget items from Remember ones was only significant for neutral items. Emotional information disrupted cognitive control, eliminating the DF effect. -
Cognitive Functions of the Brain: Perception, Attention and Memory
IFM LAB TUTORIAL SERIES # 6, COPYRIGHT c IFM LAB Cognitive Functions of the Brain: Perception, Attention and Memory Jiawei Zhang [email protected] Founder and Director Information Fusion and Mining Laboratory (First Version: May 2019; Revision: May 2019.) Abstract This is a follow-up tutorial article of [17] and [16], in this paper, we will introduce several important cognitive functions of the brain. Brain cognitive functions are the mental processes that allow us to receive, select, store, transform, develop, and recover information that we've received from external stimuli. This process allows us to understand and to relate to the world more effectively. Cognitive functions are brain-based skills we need to carry out any task from the simplest to the most complex. They are related with the mechanisms of how we learn, remember, problem-solve, and pay attention, etc. To be more specific, in this paper, we will talk about the perception, attention and memory functions of the human brain. Several other brain cognitive functions, e.g., arousal, decision making, natural language, motor coordination, planning, problem solving and thinking, will be added to this paper in the later versions, respectively. Many of the materials used in this paper are from wikipedia and several other neuroscience introductory articles, which will be properly cited in this paper. This is the last of the three tutorial articles about the brain. The readers are suggested to read this paper after the previous two tutorial articles on brain structure and functions [17] as well as the brain basic neural units [16]. Keywords: The Brain; Cognitive Function; Consciousness; Attention; Learning; Memory Contents 1 Introduction 2 2 Perception 3 2.1 Detailed Process of Perception . -
The Three Amnesias
The Three Amnesias Russell M. Bauer, Ph.D. Department of Clinical and Health Psychology College of Public Health and Health Professions Evelyn F. and William L. McKnight Brain Institute University of Florida PO Box 100165 HSC Gainesville, FL 32610-0165 USA Bauer, R.M. (in press). The Three Amnesias. In J. Morgan and J.E. Ricker (Eds.), Textbook of Clinical Neuropsychology. Philadelphia: Taylor & Francis/Psychology Press. The Three Amnesias - 2 During the past five decades, our understanding of memory and its disorders has increased dramatically. In 1950, very little was known about the localization of brain lesions causing amnesia. Despite a few clues in earlier literature, it came as a complete surprise in the early 1950’s that bilateral medial temporal resection caused amnesia. The importance of the thalamus in memory was hardly suspected until the 1970’s and the basal forebrain was an area virtually unknown to clinicians before the 1980’s. An animal model of the amnesic syndrome was not developed until the 1970’s. The famous case of Henry M. (H.M.), published by Scoville and Milner (1957), marked the beginning of what has been called the “golden age of memory”. Since that time, experimental analyses of amnesic patients, coupled with meticulous clinical description, pathological analysis, and, more recently, structural and functional imaging, has led to a clearer understanding of the nature and characteristics of the human amnesic syndrome. The amnesic syndrome does not affect all kinds of memory, and, conversely, memory disordered patients without full-blown amnesia (e.g., patients with frontal lesions) may have impairment in those cognitive processes that normally support remembering. -
Hyper Memory, Synaesthesia, Savants Luria and Borges Revisited
Dement Neuropsychol 2018 June;12(2):101-104 Views & Reviews http://dx.doi.org/10.1590/1980-57642018dn12-020001 Hyper memory, synaesthesia, savants Luria and Borges revisited Luis Fornazzari1, Melissa Leggieri2, Tom A. Schweizer3, Raul L. Arizaga4, Ricardo F. Allegri5, Corinne E. Fischer6 ABSTRACT. In this paper, we investigated two subjects with superior memory, or hyper memory: Solomon Shereshevsky, who was followed clinically for years by A. R. Luria, and Funes the Memorious, a fictional character created by J. L. Borges. The subjects possessed hyper memory, synaesthesia and symptoms of what we now call autistic spectrum disorder (ASD). We will discuss interactions of these characteristics and their possible role in hyper memory. Our study suggests that the hyper memory in our synaesthetes may have been due to their ASD-savant syndrome characteristics. However, this talent was markedly diminished by their severe deficit in categorization, abstraction and metaphorical functions. As investigated by previous studies, we suggest that there is altered connectivity between the medial temporal lobe and its connections to the prefrontal cingulate and amygdala, either due to lack of specific neurons or to a more general neuronal dysfunction. Key words: memory, hyper memory, savantism, synaesthesia, autistic spectrum disorder, Solomon Shereshevsky, Funes the memorious. HIPERMEMÓRIA, SINESTESIA, SAVANTS: LURIA E BORGES REVISITADOS RESUMO. Neste artigo, investigamos dois sujeitos com memória superior ou hipermemória: Solomon Shereshevsky, que foi seguido clinicamente por anos por A. R. Luria, e Funes o memorioso, um personagem fictício criado por J. L. Borges. Os sujeitos possuem hipermemória, sinestesia e sintomas do que hoje chamamos de transtorno do espectro autista (TEA). -
Disordered Recognition Memory: Recollective Confabulation
cortex xxx (2013) 1e12 Available online at www.sciencedirect.com Journal homepage: www.elsevier.com/locate/cortex Special issue: Research report Disordered recognition memory: Recollective confabulation Chris J.A. Moulin* Laboratoire d’Etude de l’Apprentissage et du De´veloppement, CNRS UMR 5022, Universite´ de Bourgogne, Dijon, France article info abstract Article history: Recollective confabulation (RC) is encountered as a conviction that a present moment is a Received 31 January 2012 repetition of one experienced previously, combined with the retrieval of confabulated Reviewed 12 April 2012 specifics to support that assertion. It is often described as persistent de´ja` vu by family Revised 24 September 2012 members and caregivers. On formal testing, patients with RC tend to produce a very high Accepted 24 January 2013 level of false positive errors. In this paper, a new case series of 11 people with dementia or Published online xxx mild cognitive impairment (MCI) and with de´ja` vu-like experiences is presented. In two experiments the nature of the recognition memory deficit is explored. The results from Keywords: these two experiments suggest e contrary to our hypothesis in earlier published case re- Dementia ports e that recollection mechanisms are relatively spared in this group, and that patients De´ja` vu experience familiarity for non-presented items. The RC patients tended to be overconfident Reduplicative paramnesia in their assessment of recognition memory, and produce inaccurate assessments of their Familiarity performance. These findings are discussed with reference to delusions more generally, and Metacognition point to a combined memory and metacognitive deficit, possibly arising from damage to temporal and right frontal regions. -
Sleep Is for Forgetting
464 • The Journal of Neuroscience, January 18, 2017 • 37(3):464–473 Dual Perspectives Dual Perspectives Companion Paper: Sleep to Remember, by Susan J. Sara Sleep Is for Forgetting Gina R. Poe Department of Integrative Biology and Physiology, University of California, Los Angeles, Los Angeles, California 90095-7246 It is possible that one of the essential functions of sleep is to take out the garbage, as it were, erasing and “forgetting” information built up throughout the day that would clutter the synaptic network that defines us. It may also be that this cleanup function of sleep is a general principle of neuroscience, applicable to every creature with a nervous system. Key words: depotentiation; development; mental health; noradrenaline; REM sleep; spindles; theta; TR sleep Introduction was for forgetting useless tidbits of information learned through- In this article, I discuss and illustrate the importance of forgetting out the day that, if not eliminated, would soon saturate the mem- for development, for memory integration and updating, and for ory synaptic network with junk. Therefore, the type of forgetting resetting sensory-motor synapses after intense use. I then intro- we will discuss here is also not the global synaptic weight down- duce the mechanisms whereby sleep states and traits could serve scaling of the synaptic homeostasis hypothesis (SHY) (Tononi this unique forgetting function separately for memory circuits and Cirelli, 2003), although evidence from excellent experiments within reach of the locus coeruleus (LC) and those formed and used to support the idea of sleep for synaptic homeostasis will be governed outside its noradrenergic net. Specifically, I talk about used to make points here. -
Proper Names and Repression. a Freudian Finding
ACTA SCIENTIFIC Neurology (ISSN: 2582-1121) Volume 3 Issue 9 September 2020 Review Article Proper Names and Repression. A Freudian Finding Araceli Colín* Psychoanalyst. PhD in Anthropology from Universidad Nacional Autónoma de México Received: July 14, 2020 and Research Professor at the Faculty of Psychology, Universidad Autónoma de Published: August 28, 2020 Querétaro, Mexico © All rights are reserved by Araceli Colín. *Corresponding Author: Araceli Colín, Psychoanalyst. PhD in Anthropology from Universidad Nacional Autónoma de México and Research Professor at the Faculty of Psychology, Universidad Autónoma de Querétaro, Mexico. Abstract I intend to locate Freud's contributions in relation to personal names and repression. His most spreaded idea of the unconscious is it is necessary to highlight the way in which the personal name is tied to a lack. Without lack the reality-test could not be installed a consequence of repression. Repression operates in three stages described in his metapsychology. In order to articulate his findings, and the separation between conscious and unconscious could not be established. For Freud, the core of the unconscious is made up of agents of the representation (Vorstellungrepräsentanz). They are of the order of nonsense. In my opinion those representatives Fixierung - are letters. Letters of personal names are one of the first fixation materials ( ). Fixation constitutes the first time of repres unconscious: the inherited unconscious. Freud deployed this idea in his last work. sion: It is a necessary but not sufficient condition for the psychic apparatus to be founded. I also analyze another Freudian idea of the Keywords: Proper Name; Repression; Primal Repression; Fixation; Letters Introduction primal Fixierung), 2) Repression proper (Verdrängung) that is manifested, in the case of names, as a In Freud’s times, there were no theoretical developments repression or fixation ( forgetting, and 3) return of the repressed [21]. -
Forgetting Is a Feature, Not A
PSSXXX10.1177/0956797619859531Popov et al.Preceding Cues in Item-Method Directed Forgetting 859531research-article2019 ASSOCIATION FOR Research Article PSYCHOLOGICAL SCIENCE Psychological Science 2019, Vol. 30(9) 1303 –1317 Forgetting Is a Feature, Not a Bug: © The Author(s) 2019 Article reuse guidelines: sagepub.com/journals-permissions Intentionally Forgetting Some Things DOI:https://doi.org/10.1177/0956797619859531 10.1177/0956797619859531 Helps Us Remember Others by Freeing www.psychologicalscience.org/PS Up Working Memory Resources TC Vencislav Popov1 , Ivan Marevic2, Jan Rummel2 , and Lynne M. Reder1 1Department of Psychology, Carnegie Mellon University and 2Department of Psychology, Heidelberg University Abstract In the present study, we used an item-method directed-forgetting paradigm to test whether instructions to forget or remember one item affect memory for subsequently studied items. In two experiments (Ns = 138 and 33, respectively), recall was higher when a word pair was preceded during study by a to-be-forgotten word pair. This effect was cumulative: Performance increased when more preceding study items were to be forgotten. The effect decreased when memory was conditioned on instructions for items appearing farther back in the study list. Experiment 2 used a dual-task paradigm that suppressed, during encoding, verbal rehearsal or attentional refreshing. Neither task removed the effect, ruling out that rehearsal or attentional borrowing is responsible for the advantage conferred from previous to-be-forgotten items. We propose that memory formation depletes a limited resource that recovers over time and that to-be-forgotten items consume fewer resources, leaving more resources available for storing subsequent items. A computational model implementing the theory provided excellent fits to the data.