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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, Hongxia1,4; Zhang, Liang1; Zhang, Kan1; Wu, Jianhui1; Qin, Shaozheng5,6
2016-03-22
Source PublicationSCIENTIFIC REPORTS
ISSN2045-2322
SubtypeArticle
Volume6Issue:0Pages:23217
AbstractThis 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.
DOI10.1038/srep23217
Indexed BySCI ; SSCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(81371203 ; Excellent Young Scientists Fund, IP, CAS(YICX63S03) ; 91124003 ; 31100734)
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000372499200001
WOS HeadingsScience & Technology
WOS KeywordEVENT-RELATED POTENTIALS ; SELECTIVE ATTENTION ; ACADEMIC STRESS ; BRAIN ; MECHANISMS ; P300 ; VARIABILITY ; PERSISTENT ; COMPONENT ; COGNITION
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Document Type期刊论文
Identifierhttp://ir.psych.ac.cn/handle/311026/19701
Collection中国科学院行为科学重点实验室
Affiliation1.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
Recommended Citation
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.
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