Investigating false memories among "winners" and "losers" in the prisoner's dilemma

Greene, Ciara M.; Donnelly, Oisí­n; Garvin, Chris; Murphy, Gillian

Investigating false memories among "winners" and "losers" in the prisoner's dilemma

dc.contributor.author	Greene, Ciara M.
dc.contributor.author	Donnelly, Oisín
dc.contributor.author	Garvin, Chris
dc.contributor.author	Murphy, Gillian
dc.date.accessioned	2022-09-29T09:22:33Z
dc.date.available	2022-09-29T09:22:33Z
dc.date.issued	2022-08-26
dc.date.updated	2022-09-29T08:54:01Z
dc.description.abstract	Many legal cases hinge on evaluating the veracity of two versions of events ("he said, she said"). Expert witnesses are often called upon to testify on the malleability of memory, most often testifying for the defence. This may lead to the theoretically unfounded assumption that it is only victims who are vulnerable to distorted memories of a crime. Inspired by this question, we conducted a series of five experiments in which 2010 participants played a novel version of the Prisoner's Dilemma. Participants could either betray their partner in the game ("winners") or be betrayed by their partner ("losers"). We exposed participants to misinformation concerning the other player's statements to assess whether winners and losers may be differentially susceptible to false memories of the event in question. Across our experiments, including where real financial rewards were at stake, we found that winners were just as susceptible as losers to memory distortion. We highlight the need to consider the possibility of faulty memory affecting all parties to in legal cases, though further research is needed beyond this highly artificial paradigm.	en
dc.description.status	Peer reviewed	en
dc.description.version	Accepted Version	en
dc.format.mimetype	application/pdf	en
dc.identifier.citation	Greene, C. M., Donnelly, O., Garvin, C. and Murphy, G. (2022) 'Investigating false memories among winners and losers in the prisoner's dilemma', Memory. doi: 10.1080/09658211.2022.2115515	en
dc.identifier.doi	10.1080/09658211.2022.2115515	en
dc.identifier.eissn	1464-0686
dc.identifier.issn	0965-8211
dc.identifier.journaltitle	Memory	en
dc.identifier.uri	https://hdl.handle.net/10468/13697
dc.language.iso	en	en
dc.publisher	Routledge - Taylor & Francis Group	en
dc.rights	© 2022, Informa UK Limited, trading as Taylor & Francis Group. This is an Accepted Manuscript of an item published by Taylor & Francis in Memory on 26 August 2022, available online: https://doi.org/10.1080/09658211.2022.2115515	en
dc.rights.uri	https://creativecommons.org/licenses/by-nc/4.0/	en
dc.subject	False memory	en
dc.subject	Misinformation	en
dc.subject	Expert witness	en
dc.subject	Prisoner's dilemma	en
dc.title	Investigating false memories among "winners" and "losers" in the prisoner's dilemma	en
dc.type	Article (peer-reviewed)	en