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Unitization improves source memory in older adults: An event-related potential study
Zheng, Zhiwei1; Li, Juan1,2; Xiao, Fengqiu3; Ren, Weicong1; He, Rongqiao2; J. Li
2016-08-01
Source PublicationNEUROPSYCHOLOGIA
Correspondent Emaillijuan@psych.ac.cn
ISSN0028-3932
SubtypeArticle
Volume89Issue:0Pages:232-244
AbstractAging-related decline in episodic memory, particularly in associative memory, is attributed to an impaired recollection of the specific details of a study episode. Fortunately, familiarity is relatively preserved in older adults. Previous studies have indicated that unitization is a specialized form of learning that increases the contribution of familiarity to associative retrieval. Here we examined whether older adults' associative memory could be improved when employing an encoding strategy that encouraged unitization. Young and older adults encoded items and background colors either in a unitized condition (i.e., by imagining the color as an internal feature of the item) or in a non-unitized condition (i.e., by imagining the color as a contextual feature of the item). The participants then performed a source recognition test. The effects of unitization on the neural correlates of familiarity were measured by event related potentials (ERPs). The age differences in source memory performance were lower in the unitized condition than in the non-unitized condition. The older adults only demonstrated neural correlates of familiarity-based source recognition in the unitized condition. These findings suggest that a unitized encoding strategy could improve source memory performance in older adults by enhancing the involvement of familiarity in source recognition. (C) 2016 Elsevier Ltd. All rights reserved.
KeywordUnitization Source memory Familiarity Aging Event-related potentials
DOI10.1016/j.neuropsychologia.2016.06.025
Indexed BySCI ; SSCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(31070916 ; Knowledge Innovation Project of the Chinese Academy of Sciences(KSCX2-EW-J-8) ; CAS/SAFEA International Partnership Program for Creative Research Team(Y2CX131003) ; National Science & Technology Pillar Program of China(2009BAI77B03) ; Scientific Foundation of Institute of Psychology, Chinese Academy of Sciences(Y5CX131005) ; Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences(KLMH2014ZK02 ; 31271108 ; KLMH2014ZG03 ; 31470998) ; KLMH2015ZG06)
WOS Research AreaBehavioral Sciences ; Neurosciences & Neurology ; Psychology
WOS SubjectBehavioral Sciences ; Neurosciences ; Psychology, Experimental
WOS IDWOS:000383003100022
WOS HeadingsScience & Technology ; Social Sciences ; Life Sciences & Biomedicine
WOS KeywordASSOCIATIVE RECOGNITION MEMORY ; AGE-RELATED DIFFERENCES ; MEDIAL TEMPORAL-LOBE ; IN-SOURCE MEMORY ; ELECTROPHYSIOLOGICAL EVIDENCE ; EPISODIC MEMORY ; RETRIEVAL ; FAMILIARITY ; RECOLLECTION ; ERP
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Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/20389
Collection中国科学院心理健康重点实验室
Corresponding AuthorJ. Li
Affiliation1.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Ctr Aging Psychol, 16 Lincui Rd, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China
3.China Natl Childrens Ctr, Beijing 100035, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Zhiwei,Li, Juan,Xiao, Fengqiu,et al. Unitization improves source memory in older adults: An event-related potential study[J]. NEUROPSYCHOLOGIA,2016,89(0):232-244.
APA Zheng, Zhiwei,Li, Juan,Xiao, Fengqiu,Ren, Weicong,He, Rongqiao,&J. Li.(2016).Unitization improves source memory in older adults: An event-related potential study.NEUROPSYCHOLOGIA,89(0),232-244.
MLA Zheng, Zhiwei,et al."Unitization improves source memory in older adults: An event-related potential study".NEUROPSYCHOLOGIA 89.0(2016):232-244.
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