Can Working Memory Capacity Be Expanded by Boosting Working Memory Updating Efficiency in Older Adults?

doi:10.1037/pag0000311

	Can Working Memory Capacity Be Expanded by Boosting Working Memory Updating Efficiency in Older Adults?
	Du, Xin1,2 ; Ji, Yang 1,2; Chen, Tianyong1,2 ; Tang, Yi 3,4; Han, Buxin1,2
通讯作者	Chen, Tianyong(chenty@psych.ac.cn)
摘要	Working memory updating (updating) and working memory capacity (WMC) have been assumed to share a common mechanism. However, it is unclear whether WMC can be expanded by boosting the efficiency of updating, particularly during late adulthood. In this randomized controlled study, 33 older adults (aged 60 years and above, M = 69.53, SD = 5.21) were assigned to updating training (n = 17) and contact control (n = 16) groups. In the training group, updating was targeted by a running memory task and a chess game in each training session; whereas in the control group, motivational effects were estimated by their attendance to a series of mental health-related lectures. The boosted updating efficiency was demonstrated by direct training gains over sessions on updating criterion/training tasks, and significant frontocentral inflation at the N2 time range. Near transfer effects were revealed on untrained similar measures immediately after training and partly maintained at a 3-month follow-up. Far transfer effects to WMC were revealed by a significant increase in contralateral delay activity (CDA) ERP measures, although these effects did not manifest on WMC span tasks and other far transfer measures. Note that increased CDA was significantly correlated with the extent of direct gains in updating training. Our findings suggest that updating efficiency can be boosted in older adults; although it has not yet brought about an explicit expansion of WMC in our behavioral measures (i.e., on span tasks), capacity-related neural changes (i.e., on CDA) have nevertheless, started to show up in our short-term updating training program.
关键词	plasticity cognitive training working memory updating working memory capacity
	2018-12-01
语种	英语
DOI	10.1037/pag0000311
发表期刊	PSYCHOLOGY AND AGING
ISSN	0882-7974
卷号	33 期号:8 页码:1134-1151
收录类别	SCI
资助项目	National Key Research and Development Program of China[2017YFC1310102] ; National Natural Science Foundation of China[81671040] ; National Natural Science Foundation of China[81671040] ; National Key Research and Development Program of China[2017YFC1310102]
出版者	AMER PSYCHOLOGICAL ASSOC
WOS关键词	PREDICTS INDIVIDUAL-DIFFERENCES ; IMPROVING FLUID INTELLIGENCE ; CENTRAL EXECUTIVE FUNCTION ; AGE-RELATED DIFFERENCES ; N-BACK TASK ; PROACTIVE-INTERFERENCE ; INHIBITORY PROCESSES ; COGNITIVE CONTROL ; ATTENTION CONTROL ; BRAIN
WOS研究方向	Geriatrics & Gerontology ; Psychology
WOS类目	Gerontology ; Psychology, Developmental
WOS记录号	WOS:000452886000003
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.psych.ac.cn/handle/311026/27882
专题	中国科学院心理健康重点实验室
通讯作者	Chen, Tianyong
作者单位	1.Chinese Acad Sci, Key Lab Mental Hlth, Inst Psychol, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Dept Psychol, Beijing, Peoples R China 3.Xuan Wu Hosp, Beijing, Peoples R China 4.Capital Med Univ, Dept Neurol, Beijing, Peoples R China
第一作者单位	中国科学院心理健康重点实验室
通讯作者单位	中国科学院心理健康重点实验室
推荐引用方式 GB/T 7714	Du, Xin,Ji, Yang,Chen, Tianyong,et al. Can Working Memory Capacity Be Expanded by Boosting Working Memory Updating Efficiency in Older Adults?[J]. PSYCHOLOGY AND AGING,2018,33(8):1134-1151.
APA	Du, Xin,Ji, Yang,Chen, Tianyong,Tang, Yi,&Han, Buxin.(2018).Can Working Memory Capacity Be Expanded by Boosting Working Memory Updating Efficiency in Older Adults?.PSYCHOLOGY AND AGING,33(8),1134-1151.
MLA	Du, Xin,et al."Can Working Memory Capacity Be Expanded by Boosting Working Memory Updating Efficiency in Older Adults?".PSYCHOLOGY AND AGING 33.8(2018):1134-1151.

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