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Electrophysiological evidence for the effects of unitization on associative recognition memory in older adults
Zheng, Zhiwei1,2; Li, Juan1,3,4; Xiao, Fengqiu5; Broster, Lucas S.6; Jiang, Yang6
2015-05-01
Source PublicationNEUROBIOLOGY OF LEARNING AND MEMORY
ISSN1074-7427
SubtypeArticle
Volume121Issue:0Pages:59-71
AbstractNormal aging is associated with greater decline in associative memory relative to item memory due to impaired recollection. Familiarity may also contribute to associative recognition when stimuli are perceived as a 'unitized' representation. Given that familiarity is relatively preserved in older adults, we explored whether age-related associative memory deficits could be attenuated when associations were unitized (i.e., compounds) compared with those non-unitized (i.e., unrelated word pairs). Young and older adults performed an associative recognition task while electroencephalogram (EEG) was recorded. Behavioral results showed that age differences were smaller for recognition of compounds than for unrelated word pairs. ERP results indicated that only compounds evoked an early frontal old/new effect in older adults. Moreover, the early frontal old/new effect was positively correlated with associative discrimination accuracy. These findings suggest that reduced age-related associative deficits under unitized condition may be associated with the presence of familiarity-based retrieval of compounds in older adults. (C) 2015 Elsevier Inc. All rights reserved.
KeywordUnitization Associative recognition Aging Familiarity Event-related potentials
Indexed BySSCI
Language英语
WOS IDWOS:000354662800007
Citation statistics
Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/13397
Collection中国科学院心理健康重点实验室
Affiliation1.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Ctr Aging Psychol, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100101, Peoples R China
3.Chinese Acad Sci, Inst Psychol, Magnet Resonance Imaging Res Ctr, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Inst Biophys, State Key Lab Brain & Cognit Sci, Beijing 100101, Peoples R China
5.Beijing Normal Univ, Sch Psychol, Inst Dev Psychol, Beijing 100875, Peoples R China
6.Univ Kentucky, Coll Med, Dept Behav Sci, Lexington, KY 40536 USA
Recommended Citation
GB/T 7714
Zheng, Zhiwei,Li, Juan,Xiao, Fengqiu,et al. Electrophysiological evidence for the effects of unitization on associative recognition memory in older adults[J]. NEUROBIOLOGY OF LEARNING AND MEMORY,2015,121(0):59-71.
APA Zheng, Zhiwei,Li, Juan,Xiao, Fengqiu,Broster, Lucas S.,&Jiang, Yang.(2015).Electrophysiological evidence for the effects of unitization on associative recognition memory in older adults.NEUROBIOLOGY OF LEARNING AND MEMORY,121(0),59-71.
MLA Zheng, Zhiwei,et al."Electrophysiological evidence for the effects of unitization on associative recognition memory in older adults".NEUROBIOLOGY OF LEARNING AND MEMORY 121.0(2015):59-71.
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