Reconstructive memory: Difference between revisions

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{{Short description| A theory of memory recall}}

'''Reconstructive memory''' is a theory of [[Recall (memory)|memory recall]], in which the act of remembering is influenced by various other cognitive processes including [[perception]], [[imagination]], [[motivation]], [[semantic memory]] and [[beliefs]], amongst others. People view their memories as being a coherent and truthful account of [[episodic memory]] and believe that their perspective is free from an error during recall. However, the reconstructive process of memory recall is subject to distortion by other intervening cognitive functions and operations such as individual perceptions, social influences, and world knowledge, all of which can lead to errors during reconstruction.

[[File: Brain limbicsystem.jpgsvg|right|frame|The areas most actively involved in episodic encoding and retrieval are the medial temporal lobe (hippocampus) and the prefrontal lobe.]]

==Reconstructive process==

Memory rarely relies on a literal recount of past experiences. By using multiple interdependent cognitive processes and functions, there is never a single ___location in the brain where a given complete [[Multiple trace theory|memory trace]] of experience is stored.<ref>{{cite journal|last1=Squire|first1=LR|year=1992|title=Memory and the hippocampus: a synthesis from findings with rats, monkeys, and humans|url=http://whoville.ucsd.edu/PDFs/188_Squire_PsychRev_1992.pdf|journal=Psychol. Rev.|volume=99|issue=2|pages=195–231|doi=10.1037/0033-295x.99.2.195|pmid=1594723}}</ref> Rather, memory is dependent on constructive processes during encoding that may introduce errors or distortions. Essentially, the constructive memory process functions by encoding the patterns of perceived physical characteristics, as well as the interpretive conceptual and semantic functions that act in response to the incoming information.<ref>Schacter DL. 1989. Memory. In Foundations

of Cognitive Science, ed. MI Posner, pp.

683–725. Cambridge, MA: MIT Press</ref>

In this manner, the various features of the experience must be joined together to form a coherent representation of the episode.<ref name="ReferenceA">{{Cite journal|last1=Hemmer|first1=Pernille|last2=Steyvers|first2=Mark|date=2009|title=A Bayesian Account of Reconstructive Memory|journal=Topics in Cognitive Science|language=en|volume=1|issue=1|pages=189–202|doi=10.1111/j.1756-8765.2008.01010.x|pmid=25164805|issn=1756-8765}}</ref> If this binding process fails, it can result in [[Memorymemory error|memory errors]]s. The complexity required for reconstructing some episodes is quite demanding and can result in incorrect or incomplete recall.<ref>{{Cite journal|last1=Torres-Trejo|first1=Frine|last2=Cansino|first2=Selene|date=2016-06-30|title=The Effects of the Amount of Information on Episodic Memory Binding|journal=Advances in Cognitive Psychology|volume=12|issue=2|pages=79–87|doi=10.5709/acp-0188-z|pmid=27512526|pmc=4975570|issn=1895-1171|doi-access=free}}</ref> This complexity leaves individuals susceptible to phenomena such as the [[misinformation effect]] across subsequent recollections.<ref>{{Cite journal|last1=Kiat|first1=John E.|last2=Belli|first2=Robert F.|date=2017-05-01|title=An exploratory high-density EEG investigation of the misinformation effect: Attentional and recollective differences between true and false perceptual memories|url=http://www.sciencedirect.com/science/article/pii/S1074742717300606|journal=Neurobiology of Learning and Memory|language=en|volume=141|pages=199–208|doi=10.1016/j.nlm.2017.04.007|issn=1074-7427|pmid=28442391|s2cid=4421445|url-access=subscription}}</ref> By employing reconstructive processes, individuals supplement other aspects of available personal knowledge and schema into the gaps found in episodic memory in order to provide a fuller and more coherent version, albeit one that is often distorted.<ref>{{Cite journal|last1=Frisoni|first1=Matteo|last2=Di Ghionno|first2=Monica|last3=Guidotti|first3=Roberto|last4= Tosoni|first4=Annalisa|last5=Sestieri|first5=Carlo|date=2021|title=Reconstructive Nature of Temporal Memory for Movie Scenes|journal=Cognition|volume=208|pages=104557|doi=10.1016/j.cognition.2020.104557| issn=0010-0277 |pmid=33373938|s2cid=229539467|hdl=11585/964912|hdl-access=free}}</ref>

Many errors can occur when attempting to retrieve a specific episode. First, the retrieval cues used to initiate the search for a specific episode may be too similar to other experiential memories and the retrieval process may fail if the individual is unable to form a specific description of the unique characteristics of the given memory they would like to retrieve.<ref>{{cite journal | last1 = Burgess | first1 = PW | last2 = Shallice | first2 = T | year = 1996 | title = Confabulation and the control of recollection | url = | journal = Memory | volume = 4 | issue = 4| pages = 359–411 | doi = 10.1080/096582196388906 | pmid = 8817460 }}</ref> When there is little available distinctive information for a given episode there will be more overlap across multiple episodes, leading the individual to recall only the general similarities common to these memories. Ultimately proper recall for a desired target memory fails due to the interference of non-target memories that are activated because of their similarity.<ref>{{Cite journal|last1name=Hemmer|first1=Pernille|last2=Steyvers|first2=Mark|date=2009|title=A Bayesian Account of Reconstructive Memory|journal=Topics in Cognitive Science|language=en|volume=1|issue=1|pages=189–202|doi=10.1111"ReferenceA"/j.1756-8765.2008.01010.x|pmid=25164805|issn=1756-8765}}</ref>

Secondly, a large number of errors that occur during memory reconstruction are caused by faults in the criterion-setting and decision making processes used to direct attention towards retrieving a specific target memory. When there are lapses in the recall of aspects of episodic memory, the individual tends to supplement other aspects of knowledge that are unrelated to the actual episode to form a more cohesive and well-rounded reconstruction of the memory, regardless of whether or not the individual is aware of such supplemental processing. This process is known as [[confabulation]]. All of the supplemental processes occurring during the course of reconstruction rely on the use of schema, information networks that organize and store abstract knowledge in the brain.

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===Schema===

[[Schema (psychology)|Schema]] are generally defined as mental information networks that represent some aspect of collected world knowledge. Frederic Bartlett was one of the first psychologists to propose Schematic theory, suggesting that the individual's understanding of the world is influenced by elaborate neural networks that organize abstract information and concepts.<ref name=Bartlett>{{cite web|url=http://iscte.pt/~fgvs/Bartlett,%20Experiments.pdf|title="Frederick Bartlett", Some Experiments on the Reproduction of Folk-Stories, March 30, 1920|publisher=}}</ref> Schema are fairly consistent and become strongly internalized in the individual through [[socialization]], which in turn alters the recall of [[episodic memory]]. Schema is understood to be central to reconstruction, used to confabulate, and fill in gaps to provide a plausible narrative. Bartlett also showed that schema can be tied to cultural and social norms.<ref name=":0">{{Cite book|last1=Bartlett|first1=Sir Frederic Charles|url=https://books.google.com/books?id=WG5ZcHGTrm4C&pg=PR9#v=onepage|title=Remembering: A Study in Experimental and Social Psychology|last2=Bartlett|first2=Frederic C.|last3=Bartlett|first3=Frederic Charles|date=1995-06-30|publisher=Cambridge University Press|isbn=978-0-521-48356-8|language=en}}</ref>

==== Jean Piaget's theory of schema ====

[[File: Jean Piaget in Ann Arbor.png|thumb|right|Jean Piaget influenced the study of reconstructive memory with his theory of schema.]]

[[Piaget's theory#Assimilation and accommodation|Piaget's theory]] proposed an alternative understanding of schema based on the two concepts: '''assimilation''' and '''accommodation'''. Piaget defined assimilation as the process of making sense of the novel and unfamiliar information by using previously learned information. To assimilate, Piaget defined a second cognitive process that served to integrate new information into memory by altering preexisting schematic networks to fit novel concepts, what he referred to as accommodation.<ref>{{cite journal|url=http://internal.psychology.illinois.edu/~broberts/Block,+1982.pdf|author=Jack Block|title=Assimilation, Accommodation, and the Dynamics of Personality Development|year=1982|doi=10.2307/1128971|jstor=1128971|journal=Child Development|volume=53|pages=281–295|number=2}}{{Dead link|date=October 2023 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> For Piaget, these two processes, accommodation, and assimilation, are mutually reliant on one another and are vital requirements for people to form basic conceptual networks around world knowledge and to add onto these structures by utilizing preexisting learning to understand new information, respectively.

According to Piaget, schematic knowledge organizes features information in such a way that more similar features are grouped so that when activated during recall the more strongly related aspects of memory will be more likely to activate together. An extension of this theory, Piaget proposed that the schematic frameworks that are more frequently activated will become more strongly consolidated and thus quicker and more efficient to activate later.<ref>Auger, W.F. & Rich, S.J. (2006.) Curriculum Theory and Methods: Perspectives on Learning and Teaching. New York, NY: Wiley & Sons.</ref>

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==== Frederic Bartlett's experiments ====

[[Frederic Bartlett]] originally tested his idea of the reconstructive nature of recall by presenting a group of participants with foreign folk tales (his most famous being "War of the Ghosts"<ref>{{cite web|url=http://cla.calpoly.edu/~dlvalenc/PSY307/LINKS/GHOSTWAR.HTM|title="War of the Ghosts", March 5, 2012|access-date=March 6, 2012|archive-date=October 8, 2001|archive-url=https://web.archive.org/web/20011008213440/http://cla.calpoly.edu/~dlvalenc/PSY307/LINKS/GHOSTWAR.HTM|publisherurl-status=dead}}</ref>) with which they had no previous experience. After presenting the story, he tested their ability to recall and summarize the stories at various points after the presentation to newer generations of participants. His findings showed that the participants could provide a simple summary but had difficulty recalling the story accurately, with the participants' own account generally being shorter and manipulated in such a way that aspects of the original story that were unfamiliar or conflicting to the participants' own schematic knowledge were removed or altered in a way to fit into more personally relevant versions.<ref name=Bartlett /> For instance, allusions made to magic and Native American mysticism that were in the original version were omitted as they failed to fit into the average Westerner schematic network. Besides, after several recounts of the story had been made by successive generations of participants, certain aspects of the recalled tale were embellished so they were more consistent with the participants' cultural and historical viewpoint compared to the original text (e.g. Emphasis placed on one of the characters desire to return to care for his dependent elderly mother). These findings lead Bartlett to conclude that recall is predominately a ''reconstructive'' rather than ''reproductive'' process.<ref name=":0" />

James J. Gibson built off of the work that Bartlett originally laid down, suggesting that the degree of change found in a reproduction of an episodic memory depends on how that memory is later perceived.<ref>{{cite journal | last1 = Gibson | first1 = J.J. | year = 1929 | title = The Reproduction of Visually Perceived Forms | URLurl = http://wexler.free.fr/library/files/gibson%20(1929)%20the%20reproduction%20of%20visually%20perceived%20forms.pdf | journal = Journal of Experimental Psychology | volume = 12 | issue = 1| pages = 1–39 | doi=10.1037/h0072470}}</ref> This concept was later tested by Carmichael, Hogan, and Walter (1932) who exposed a group of participants to a series of simple figures and provided different words to describe each images. For example, all participants were exposed to an image of two circles attached by a single line, where some of the participants were told it was a barbell and the rest were told it was a pair of reading glasses. The experiment revealed that when the participants were later tasked with replicating the images, they tended to add features to their own reproduction that more closely resembled the word they were [[Priming (psychology)|primed]] with.

===Confirmation bias===

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[[File:Hippocampus-mri.jpg|thumb|right|MRI indicating the hippocampus]]

Recent research using neuro-imaging technology including [[Positron emission tomography|PET]] and [[Functional magnetic resonance imaging|fMRI scanning]] has shown that there is an extensive amount of distributed brain activation during the process of episodic encoding and retrieval. Among the various regions, the two most active areas during the constructive processes are the [[medial temporal lobe]] (including the [[hippocampus]]) and the [[prefrontal cortex]].<ref name="schacter">{{cite journal | last1 = Schacter | first1 = DL | last2 = Norman | first2 = KA | last3 = Koutstaal | first3 = W | year = 1998 | title = The Cognitive Neuroscience of Constructive Memory | url = | journal = Annual Review of Psychology | volume = 49 | issue = | pages = 289–318 | doi=10.1146/annurev.psych.49.1.289| pmid = 9496626 | s2cid = 5141113 }}</ref> The Medial Temporal lobe is especially vital for encoding novel events in episodic networks, with the Hippocampus acting as one of the central locations that acts to both combine and later separate the various features of an event.<ref>{{cite journal | last1 = Tulving | first1 = E | authorlink2author-link2 = Hans Markowitsch | last2 = Markowitsch | first2 = H.J. | last3 = Kapur | first3 = S | last4 = Habib | first4 = R | last5 = Houle | first5 = S. | year = 1994 | title = Novelty encoding networks in the human brain: positron emission tomography data | url = | journal = NeuroReport | volume = 5 | issue = 18| pages = 2525–28 | doi=10.1097/00001756-199412000-00030| pmid = 7696595 }}</ref><ref name="mcclelland">McClelland JL, McNaughton BL, O’Reilly RC. 1995. [https://web.archive.org/web/20170915023549/https://pdfs.semanticscholar.org/57f1/16f3e6780424463cc8416ce755a72f873aa9.pdf Why There Are Complementary Learning Systems in the Hippocampus and Neocortex: Insights from the Successes and Failures of Connectionist Models of Learning and Memory]. Psychology Review 102:419–57</ref> Most popular research holds that the Hippocampus becomes less important in long term memory functioning after more extensive consolidation of the distinct features present at the time of episode encoding has occurred. In this way long term episodic functioning moves away from the CA3 region of the Hippocampal formation into the neocortex, effectively freeing up the CA3 area for more initial processing.<ref name="mcclelland" />

Studies have also consistently linked the activity of the Prefrontal Cortex, especially that which occurs in the right hemisphere, to the process of retrieval.<ref>{{cite journal | last1 = Tulving | first1 = E | last2 = Kapur | first2 = S | last3 = Markowitsch | first3 = HJ | last4 = Craik | first4 = FIM | last5 = Habib | first5 = R | display-authors = et al | year = 1994 | title = Neuroanatomical Correlates of Retrieval in Episodic Memory: Auditory Sentence Recognition | url = | journal = Proceedings of the National Academy of Sciences USA | volume = 91 | issue = 6| pages = 2012–15 | doi=10.1073/pnas.91.6.2012| pmid = 8134341 | pmc = 43299 | bibcode = 1994PNAS...91.2012T | doi-access = free }}</ref> The Prefrontal cortex appears to be utilized for executive functioning primarily for directing the focus of attention during retrieval processing, as well as for setting the appropriate criterion required to find the desired target memory.<ref name="schacter" />

==Applications==

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====Anxiety and stress====

Anxiety is a state of distress or uneasiness of mind caused by fear<ref>{{cite web|url=http://www.dictionary.com/browse/anxiety|title=Anxiety - Define Anxiety at Dictionary.com|publisher=}}</ref> and it is a consistently associated with witnessing crimes. In a study done by Yuille and Cutshall (1986), they discovered that witnesses of real-life violent crimes were able to remember the event quite vividly even five months after it originally occurred.<ref name="simplypsych"/> In fact, witnesses to violent or traumatic crimes often self-report the memory as being particularly vivid. For this reason, [[eyewitness memory]] is often listed as an example of [[flashbulb memory]].

However, in a study by Clifford and Scott (1978), participants were shown either a film of a violent crime or a film of a non-violent crime. The participants who viewed the stressful film had difficulty remembering details about the event compared to the participants that watched the non-violent film.<ref name="simplypsych" /> In a study by Brigham et al. (2010), subjects who experienced an electrical shock were less accurate in facial recognition tests, suggesting that some details were not well remembered under stressful situations.<ref>{{Cite journal|last1=Brigham|first1=John C.|last2=Maass|first2=Anne|last3=Martinez|first3=David|last4=Whittenberger|first4=Gary|date=1983-09-01|title=The Effect of Arousal on Facial Recognition|journal=Basic and Applied Social Psychology|volume=4|issue=3|pages=279–293|doi=10.1207/s15324834basp0403_6|issn=0197-3533}}</ref> In fact, in the case of the phenomena known as [[weapon focus]], eyewitnesses to stressful crimes involving weapons may perform worse during suspect identification.<ref>{{Cite journal|last1=Fawcett|first1=Jonathan M.|last2=Peace|first2=Kristine A.|last3=Greve|first3=Andrea|date=2016-09-01|title=Looking Down the Barrel of a Gun: What Do We Know About the Weapon Focus Effect?|url=http://www.sciencedirect.com/science/article/pii/S2211368116300699|journal=Journal of Applied Research in Memory and Cognition|language=en|volume=5|issue=3|pages=257–263|doi=10.1016/j.jarmac.2016.07.005|issn=2211-3681|doi-access=free}}</ref>

Further studies on flashbulb memories seem to indicate that witnesses may recall vivid sensory content unrelated to the actual event but which enhance its perceived vividness.<ref>{{Citation|last1=Howes|first1=Mary|title=Chapter 9 - Memory and Emotion|date=2014-01-01|url=http://www.sciencedirect.com/science/article/pii/B9780124080874000098|work=Human Memory|pages=177–196|editor-last=Howes|editor-first=Mary|publisher=Academic Press|language=en|isbn=978-0-12-408087-4|access-date=2020-04-14|last2=O'Shea|first2=Geoffrey|editor2-last=O'Shea|editor2-first=Geoffrey|doi=10.1016/B978-0-12-408087-4.00009-8|url-access=subscription}}</ref> Due to this vividness, eyewitnesses may place higher confidence in their reconstructed memories.<ref>{{Cite journal|last=Christianson|first=Sven-Åke|date=1992|title=Emotional stress and eyewitness memory: A critical review.|journal=Psychological Bulletin|volume=112|issue=2|pages=284–309|doi=10.1037/0033-2909.112.2.284|issn=1939-1455|pmid=1454896}}</ref>

====Application of schema====

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====Cross-race effect====

Reconstructing the face of another race requires the use of schemas that may not be as developed and refined as those of the same race.<ref>{{cite journal | last1 = Pezdek | first1 = K. | last2 = Blandon-Gitlin | first2 = I. | last3 = Moore | first3 = C. | year = 2003 | title = Children's Face Recognition Memory: More Evidence for the Cross-Race Effect | url = http://infantlab.fiu.edu/Articles/Pedzke%20et%20al%202003.pdf | journal = Journal of Applied Psychology | volume = 88 | issue = 4 | pages = 760–763 | doi = 10.1037/0021-9010.88.4.760 | citeseerx = 10.1.1.365.6517 | pmid = 12940414 | access-date = 2012-03-20 | archive-date = 2010-06-15 | archive-url = https://web.archive.org/web/20100615001905/http://infantlab.fiu.edu/Articles/Pedzke%20et%20al%202003.pdf | url-status = dead }}</ref> The [[cross-race effect]] is the tendency that people have to distinguish among other of their race than of other races. Although the exact cause of the effect is unknown, two main theories are supported. The perceptual expertise hypothesis postulates that because most people are raised and are more likely to associate with others of the same race, they develop an expertise in identifying the faces of that race. The other main theory is the in-group advantage. It has been shown in the lab that people are better at discriminating the emotions of in-group members than those of out-groups.<ref>{{cite journal | last1 = Elfenbein | first1 = H. A. | last2 = Ambady | first2 = N. | year = 2003 | title = When familiarity breeds accuracy: Cultural exposure and facial emotion recognition | url = | journal = Journal of Personality and Social Psychology | volume = 85 | issue = 2| pages = 276–290 | doi=10.1037/0022-3514.85.2.276| pmid = 12916570 | citeseerx = 10.1.1.200.1256 | s2cid = 16511650 }}</ref>

====Leading questions====

Often during eyewitness testimonies, the witness is interrogated about their particular view of an incident and often the interrogator will use [[leading question]]s to direct and control the type of response that is elicited by the witness.<ref>{{cite journal | last1 = Loftus | first1 = E.F. | year = 1975 | title = Leading Questions and the Eyewitness Report | URLurl = http://www.someya-net.com/01-Tsuyaku/Reading/Loftus75.pdf | journal = Cognitive Psychology | volume = 7 | issue = 4 | pages = 560–572 | DOIdoi = 10.1016/0010-0285(75)90023-7 | s2cid = 16731808 | access-date = 2012-03-22 | archive-date = 2020-06-19 | archive-url = https://web.archive.org/web/20200619230254/http://www.someya-net.com/01-Tsuyaku/Reading/Loftus75.pdf | url-status = dead }}</ref> This phenomenon occurs when the response a person gives can be persuaded by the way a question is worded. For example, a person could be posed a question in two different forms:

* "What was the approximate height of the robber?" which would lead the respondent to estimate the height according to their original perceptions. They could alternatively be asked:

* "How short was the robber?" which would persuade the respondent to recall that the robber was actually shorter than they had originally perceived.

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===Retrieval cues===

After the information is encoded and stored in our memory, specific cues are often needed to retrieve these memories. These are known as retrieval cues<ref>{{CitationCite journal |last=Frankland |first=Paul W. |last2=Josselyn |first2=Sheena A. |last3=Köhler |first3=Stefan needed|date=AprilSeptember 202024, 2019 |title=The neurobiological foundation of memory retrieval |url=https://www.nature.com/articles/s41593-019-0493-1 |journal=Nature Neuroscience |language=en |volume=22 |issue=10 |pages=1576–1585 |doi=10.1038/s41593-019-0493-1 |issn=1546-1726 |pmc=6903648 |pmid=31551594}}</ref> and they play a major role in reconstructive memory. The use of retrieval cues can both promote the accuracy of reconstructive memory as well as detract from it. The most common aspect of retrieval cues associated with reconstructive memory is the process that involves recollection. This process uses logical structures, partial memories, narratives, or clues to retrieve the desired memory.<ref>Cherry, K. (2010, June 7). [https://www.verywell.com/memory-retrieval-2795007 Memory Retrieval - How Information is Retrieved From Memory]. Psychology - Complete Guide to Psychology for Students, Educators & Enthusiasts.</ref> However, the process of recollection is not always successful due to [[cue-dependent forgetting]] and [[Priming (psychology)|priming]].

====Cue-dependent forgetting====

[[Cue-dependent forgetting]] (also known as retrieval failure) occurs when memories are not obtainable because the appropriate cues are absent.<ref>{{Citecite web|url=https://dictionary.apa.org/|title=APA Dictionary of Psychology|websitetitle=dictionary.apa.orgCue-dependent forgetting |languageshortlink=encue-dependent-forgetting |access-date=2020-04-14 }}</ref>. This is associated with a relatively common occurrence known as the [[tip of the tongue]] (TOT) phenomenon, originally developed by the psychologist [[William James]]. Tip of the tongue phenomenon refers to when an individual knows particular information, and they are aware that they know this information, yet can not produce it even though they may know certain aspects about the information.<ref>Willingham, D.B. (2001). Cognition: The thinking animal. Upper Saddle River, NJ: Prentice-Hall.</ref> For example, during an exam a student is asked who theorized the concept of Psychosexual Development, the student may be able to recall the details about the actual theory but they are unable to retrieve the memory associated with who originally introduced the theory.

====Priming====

Priming refers to an increased sensitivity to certain stimuli due to prior experience.<ref>{{Citecite web|url=https://dictionary.apa.org/|title=APA Dictionary of Psychology|websitetitle=dictionary.apa.orgPriming |languageshortlink=enpriming |access-date=2020-04-14 }}</ref>. Priming is believed to occur outside of conscious awareness, which makes it different from memory that relies on the direct retrieval of information.<ref>Cherry, K. (2009, March 26). Priming - What Is Priming. Psychology - Complete Guide to Psychology for Students, Educators & Enthusiasts.</ref> Priming can influence reconstructive memory because it can interfere with retrieval cues. Psychologist [[Elizabeth Loftus]] presented many papers concerning the effects of proactive interference on the recall of eyewitness events. Interference involving priming was established in her classic [[Reconstruction of automobile destruction|study]] with John Palmer in 1974.<ref>{{cite journal | URLurl = https://webfiles.uci.edu/eloftus/LoftusPalmer74.pdf | last = Loftus | first = EF | author2 = Palmer JC | author-link = Elizabeth Loftus | year = 1974 | title = Reconstruction of Automobile Destruction : An Example of the Interaction Between Language and Memory | journal = Journal of Verbal Learning and Verbal Behavior | volume = 13 | issue = 5 | pages = 585–9 | DOIdoi = 10.1016/S0022-5371(74)80011-3 | s2cid = 143526400 | archive-date = 2019-10-08 | access-date = 2012-03-18 | archive-url = https://web.archive.org/web/20191008011633/https://webfiles.uci.edu/eloftus/LoftusPalmer74.pdf | url-status = dead }}</ref> Loftus and Palmer recruited 150 participants and showed each of them a film of a traffic accident. After, they had the participants fill out a questionnaire concerning the video's details. The participants were split into three groups:

* Group A contained 50 participants that were asked: "About how fast were the cars going when they '''hit''' each other?”

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===Confabulation===

[[File:Schizophrenia fMRI working memory.jpg|thumb|right|FMRI showing the active areas of a schizophrenic participant's brain while performing working memory tasks]]

[[Confabulation]] is the involuntary false remembering of events and can be a characteristic of several psychological diseases such as [[Korsakoff's syndrome]], [[Alzheimer's disease]], [[schizophrenia]] and traumatic injury of certain brain structures.<ref>{{Cite journal|last=Robins|first=Sarah K.|date=2019-06-01|title=Confabulation and constructive memory|journal=Synthese|language=en|volume=196|issue=6|pages=2135–2151|doi=10.1007/s11229-017-1315-1|s2cid=46967747|issn=1573-0964}}</ref>. Those confabulating don't know that what they are remembering is false and have no intent to deceive.<ref name="Moscovitch">Moscovitch M. 1995. Confabulation. In (Eds. Schacter D.L., Coyle J.T., Fischbach G.D., Mesulum M.M. & Sullivan L.G.), Memory Distortion (pp. 226-251). Cambridge, MA: Harvard University Press.</ref>

In the regular process of reconstruction, several sources are used to accrue information and add detail to memory. For patients producing confabulations, some key sources of information are missing and so other sources are used to produce a cohesive, internally consistent, and often believable [[false memory]].<ref name=book>{{cite book |editor-last=Nalbantian |editor-first=Suzanne |title=The memory process : neuroscientific and humanistic perspectives|year=2010|publisher=MIT Press|___location=Cambridge, Mass.|isbn=978-0-262-01457-1 |editor2=Matthews, Paul M. |editor3=McClelland, James L.}}</ref> The source and type of confabulations differ for each type of disease or area of traumatic damage.

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<references/>

{{Memory}}

[[Category:Cognitive psychology]]

[[Category:Memory]]