Memory conformity: Can eyewitnesses influence each other's memories for an event?

  title={Memory conformity: Can eyewitnesses influence each other's memories for an event?},
  author={Fiona Gabbert and Amina Memon and Kevin Allan},
  journal={Applied Cognitive Psychology},
The current study investigated memory conformity effects between individuals who witness and then discuss a criminal event, employing a novel procedure whereby each member of a dyad watches a different video of the same event. Each video contained unique items that were thus seen only by one witness. Dyads in one condition were encouraged to discuss the event before each witness (individually) performed a recall test, while in a control condition dyads were not allowed to discuss the event… Expand
Memory conformity: Disentangling the steps toward influence during a discussion
The most striking finding was that the witness initiating the discussion was most likely to influence the other witness’s memory report, and witnesses were mostlikely to be influenced when an additional (previously unseen) item of information was encountered in the discussion. Expand
Memory Conformity Between Eyewitnesses
ore than a century of psychology research has shown that memory is fallible. People's memory can be influenced by information encountered after an incident has been witnessed—so-called posteventExpand
Can a witness report hearsay evidence unintentionally? The effects of discussion on eyewitness memory
Abstract When eyewitnesses are exposed to misinformation about an event from a co-witness, they often incorporate this misinformation in their recall of the event. The current research aimed toExpand
Combating Co-witness Contamination: Attempting to Decrease the Negative Effects of Discussion on Eyewitness Memory
Witnesses who discuss an event with others often incorporate misinformation encountered during the discussion into their memory of the event. Two experiments were conducted to establish whether thisExpand
The effects of perceived memory ability on memory conformity for an event
  • L. Monds, Mark V A Howard, H. Paterson, R. Kemp
  • Medicine, Psychology
  • Psychiatry, psychology, and law : an interdisciplinary journal of the Australian and New Zealand Association of Psychiatry, Psychology and Law
  • 2019
False memory feedback indicating lower relative performance was associated with significant increases in sensitivity to misinformation and the potential contributions that co-witnesses' perceptions of both their partner's reliability and their own reliability have on event memory were discussed. Expand
Can a witness report hearsay evidence unintentionally
When eyewitnesses are exposed to misinformation about an event from a co-witness, they often incorporate this misinformation in their recall of the event. The current research aimed to investigateExpand
Memory Conformity and Eyewitness Testimony
False eyewitness testimonies are a problem that affects the lives of many defendants. One of the causes of false testimonies is memory conformity. When one witness discusses his or her memory for aExpand
Reevaluating the potency of the memory conformity effect
Encouraging source monitoring at test can reduce the negative consequences of co-witness collaboration and help witnesses report event details acquired solely from another witness. Expand
The intoxicated co-witness: effects of alcohol and dyadic discussion on memory conformity and event recall
A co-witness memory paradigm with an alcohol administration paradigm was combined to examine the influence of alcohol and dyadic discussion on remembering a mock crime and found dyads were more likely to recall misleading details in their individual recall attempts compared to the control group. Expand
Co-Witness Auditory Memory Conformity following Discussion: A Misinformation Paradigm
Witness memory performance was assessed individually with multiple-choice questionnaires and source monitoring analyses revealed that even those participants who conformed were mostly cognizant of the source of their information just after the discussion, but they were prone to source-monitoring errors a week later. Expand


Memory conformity: exploring misinformation effects when presented by another person.
Two experiments demonstrate that post-event information, when delivered by another person, can affect people's memory reports and parallels with eyewitness testimony in the Oklahoma bombing case and implications for police interviewing more generally are discussed. Expand
Co-witness Information Can Have Immediate Effects on Eyewitness Memory Reports
Results have implications not only for the immediate effects on the accuracy of witnesses' memory reports, but also for the impact that even one such inaccurate report can have on the manner in which a case is investigated by the police or other authorities. Expand
Social contagion of memory
A new paradigm for studying false memories implanted by social influence, a process the authors call the social contagion of memory, is reported, where one person's memory can be infected by another person’s errors. Expand
Influence of post-event narratives, line-up conditions and individual differences on false identification by young and older eyewitnesses
Purpose. Older individuals have been found to exceed young adults in false recognitions on line-up tasks. To explore factors involved in this deficit, this study compared effects of post-eventExpand
Shared Realities: Social Influence and Stimulus Memory
In two studies, participants read a story and then completed a multiple choice recognition test assessing recall for facts from the story. After answering some of the recognition test items,Expand
The malleability of eyewitness confidence: co-witness and perseverance effects
A theft was staged 70 times for pairs of eyewitnesses (N = 140) who then made a photo-lineup identification. Witnesses then received 1 of 9 types of information regarding the alleged identificationExpand
Social influences on reality-monitoring decisions
In two experiments, it is shown that memory for new items was influenced by an erroneous response of the confederate, revealing the power of social influence on realitymonitoring accuracy and confidence. Expand
Who remembers best? Individual differences in memory for events that occurred in a science museum
Individual differences in memory and suggestibility were assessed in an experiment involving 1989 people who attended the Exploratorium, a science museum located in San Francisco. Subjects watched aExpand
Memory impairment and source misattribution in postevent misinformation experiments with short retention intervals
The four experiments reported here provide evidence that (1) misleading postevent suggestions can impair memory for details in a witnessed event and (2) subjects sometimes remember sug-gested detailsExpand
Misleading postevent information and memory for events: arguments and evidence against memory impairment hypotheses.
It is argued that the available evidence does not imply that misleading postevent information impairs memory for the original event, because the procedure used in previous studies is inappropriate for assessing effects of misleading information on memory. Expand