The effects of long-term stress on neural dynamics of working memory processing: An investigation using ERP

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	The effects of long-term stress on neural dynamics of working memory processing: An investigation using ERP
	Yuan, Yiran1 ; Leung, Ada W. S.2,3; Duan, Hongxia 1,4; Zhang, Liang1 ; Zhang, Kan1 ; Wu, Jianhui1 ; Qin, Shaozheng 5,6
刊名	SCIENTIFIC REPORTS
	2016-03-22
卷号	6 期号:0 页码:23217
ISSN号	2045-2322
英文摘要	This study examined the neural dynamics of working memory (WM) processing under long-term stress. Forty participants who had been exposed to a long period of major exam preparation (six months) and twenty-one control participants performed a numerical n-back task (n = 1, 2) while electroencephalograms were recorded. Psychological and endocrinal measurements confirmed significantly higher levels of long-term stress for participants in the exam group. The exam group showed significantly increased P2 amplitude in the frontal-central sites in the 1-back and 2-back conditions, whereas other ERP components, including the P1, N1 and P3 and behavioral performance, were unchanged. Notably, the P2 effect was most pronounced in participants in the exam group who reported perceiving high levels of stress. The perceived stress scores positively correlated with the P2 amplitude in the 1-back and 2-back conditions. These results suggest that long-term stress has an impact on attention and the initiation of the updating process in WM.
WOS标题词	Science & Technology
类目[WOS]	Multidisciplinary Sciences
研究领域[WOS]	Science & Technology - Other Topics
关键词[WOS]	EVENT-RELATED POTENTIALS ; SELECTIVE ATTENTION ; ACADEMIC STRESS ; BRAIN ; MECHANISMS ; P300 ; VARIABILITY ; PERSISTENT ; COMPONENT ; COGNITION
收录类别	SCI ; SSCI
语种	英语
WOS记录号	WOS:000372499200001
内容类型	期刊论文
源URL	[http://ir.psych.ac.cn/handle/311026/19701]
专题	心理研究所_中国科学院行为科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing 100101, Peoples R China 2.Univ Alberta, Dept Occupat Therapy, Fac Rehabil Med, Edmonton, AB T6G 2G4, Canada 3.Baycrest Ctr Geriatr Care, Rotman Res Inst, Toronto, ON M6A 2E1, Canada 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning & IDG, McGovern Inst Brain Res, Beijing 100875, Peoples R China 6.Stanford Univ, Sch Med, Dept Psychiat & Behav Sci, Stanford, CA 94305 USA
推荐引用方式 GB/T 7714	Yuan, Yiran,Leung, Ada W. S.,Duan, Hongxia,et al. The effects of long-term stress on neural dynamics of working memory processing: An investigation using ERP[J]. SCIENTIFIC REPORTS,2016,6(0):23217.
APA	Yuan, Yiran.,Leung, Ada W. S..,Duan, Hongxia.,Zhang, Liang.,Zhang, Kan.,...&Qin, Shaozheng.(2016).The effects of long-term stress on neural dynamics of working memory processing: An investigation using ERP.SCIENTIFIC REPORTS,6(0),23217.
MLA	Yuan, Yiran,et al."The effects of long-term stress on neural dynamics of working memory processing: An investigation using ERP".SCIENTIFIC REPORTS 6.0(2016):23217.