dc.contributor.author | Tanguay, Annick | |
dc.contributor.author | Johnen, Ann-Kathrin | |
dc.contributor.author | Markostamou, Ioanna | |
dc.contributor.author | Lambert, Rachel | |
dc.contributor.author | Rudrum, Megan | |
dc.contributor.author | Davidson, Patrick SR | |
dc.contributor.author | Renoult, Louis | |
dc.date.accessioned | 2021-08-31T15:00:01Z | |
dc.date.available | 2021-08-31T15:00:01Z | |
dc.date.issued | 2022-04-30 | |
dc.identifier.citation | Tanguay , A , Johnen , A-K , Markostamou , I , Lambert , R , Rudrum , M , Davidson , P SR & Renoult , L 2022 , ' The ERP correlates of self-knowledge in ageing ' , Memory and Cognition , vol. 50 , pp. 564–585 . https://doi.org/10.3758/s13421-021-01225-7 | |
dc.identifier.issn | 0090-502X | |
dc.identifier.other | ORCID: /0000-0001-7343-0122/work/128033147 | |
dc.identifier.uri | http://hdl.handle.net/2299/25022 | |
dc.description | © 2021 The Author(s).This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. Funding Information: This research was funded by an Academic and Professional Development Fund of the University of Ottawa (APTPUO) awarded to Annick F. N. Tanguay. Louis Renoult, and Ann-Kathrin Johnen are supported by Grant MR/S011463/1 from the Medical Research Council (MRC). Patrick S. R. Davidson is supported by an NSERC Discovery grant. | |
dc.description.abstract | Self-knowledge is a type of personal semantic knowledge that concerns one’s self-image and personal identity. It has most often been operationalized as the summary of one’s personality traits (“I am a stubborn person”). Interestingly, recent studies have revealed that the neural correlates of self-knowledge can be dissociated from those of general semantic and episodic memory in young adults. However, studies of “dedifferentiation” or loss of distinctiveness of neural representations in ageing suggest that the neural correlates of self-knowledge might be less distinct from those of semantic and episodic memory in older adults. We investigated this question in an event-related potential (ERP) study with 28 young and 26 older adults while they categorised personality traits for their self-relevance (self-knowledge conditions), and their relevance to certain groups of people (general semantic condition). Participants then performed a recognition test for previously seen traits (episodic condition). The amplitude of the late positive component (LPC), associated with episodic recollection processes, differentiated the self-knowledge, general semantic, and episodic conditions in young adults, but not in older adults. However, in older adults, participants with higher composite episodic memory scores had more differentiated LPC amplitudes across experimental conditions. Moreover, consistent with the fact that age-related neural dedifferentiation may be material and region specific, in both age groups some differences between memory types were observed for the N400 component, associatedwith semantic processing. Taken together, these findings suggest that declarative memory subtypes are less distinct in ageing, but that the amount of differentiation varies with episodic memory function. | en |
dc.format.extent | 22 | |
dc.format.extent | 4031667 | |
dc.language.iso | eng | |
dc.relation.ispartof | Memory and Cognition | |
dc.subject | Ageing | |
dc.subject | Episodic memory | |
dc.subject | Event-related potentials | |
dc.subject | Semantic memory | |
dc.subject | Mental Recall | |
dc.subject | Humans | |
dc.subject | Evoked Potentials | |
dc.subject | Memory, Episodic | |
dc.subject | Male | |
dc.subject | Electroencephalography | |
dc.subject | Young Adult | |
dc.subject | Semantics | |
dc.subject | Aging | |
dc.subject | Female | |
dc.subject | Aged | |
dc.subject | Experimental and Cognitive Psychology | |
dc.subject | Neuropsychology and Physiological Psychology | |
dc.subject | Arts and Humanities (miscellaneous) | |
dc.title | The ERP correlates of self-knowledge in ageing | en |
dc.contributor.institution | School of Life and Medical Sciences | |
dc.contributor.institution | Department of Psychology, Sport and Geography | |
dc.contributor.institution | Cognitive Neuropsychology | |
dc.contributor.institution | Learning, Memory and Thinking | |
dc.contributor.institution | Centre for Research in Psychology and Sport Sciences | |
dc.description.status | Peer reviewed | |
dc.identifier.url | http://www.scopus.com/inward/record.url?scp=85113408357&partnerID=8YFLogxK | |
rioxxterms.versionofrecord | 10.3758/s13421-021-01225-7 | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |