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Long-term academic stress enhances early processing of facial expressions
Zhang, Liang1; Qin, Shaozheng2,3; Yao, Zhuxi1,4; Zhang, Kan1; Wu, Jianhui1
2016-11-01
发表期刊INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY
ISSN0167-8760
文章类型Article
卷号109期号:0页码:138-146
摘要

Exposure to long-term stress can lead to a variety of emotional and behavioral problems. Although widely investigated, the neural basis of how long-term stress impacts emotional processing in humans remains largely elusive. Using event-related brain potentials (ERPs), we investigated the effects of long-term stress on the neural dynamics of emotionally facial expression processing. Thirty-nine male college students undergoing preparation for a major examination and twenty-one matched controls performed a gender discrimination task for faces displaying angry, happy, and neutral expressions. The results of the Perceived Stress Scale showed that participants in the stress group perceived higher levels of long-term stress relative to the control group. ERP analyses revealed differential effects of long-term stress on two early stages of facial expression processing: 1) long-term stress generally augmented posterior P1 amplitudes to facial stimuli irrespective of expression valence, suggesting that stress can increase sensitization to visual inputs in general, and 2) long-term stress selectively augmented fronto-central P2 amplitudes for angry but not for neutral or positive facial expressions, suggesting that stress may lead to increased attentional prioritization to processing negative emotional stimuli. Together, our findings suggest that long-term stress has profound impacts on the early stages of facial expression processing, with an increase at the very early stage of general information inputs and a subsequent attentional bias toward processing emotionally negative stimuli. (C) 2016 Elsevier B.V. All rights reserved.

关键词Long-term stress Event-related potentials Facial expression P1 P2
DOI10.1016/j.ijpsycho.2016.08.010
收录类别SCI ; SSCI
语种英语
WOS研究方向Psychology ; Neurosciences & Neurology ; Physiology
WOS类目Psychology, Biological ; Neurosciences ; Physiology ; Psychology ; Psychology, Experimental
WOS记录号WOS:000387836300017
WOS标题词Social Sciences ; Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]EVENT-RELATED POTENTIALS ; PERCEIVED STRESS ; GENDER-DIFFERENCES ; BRAIN POTENTIALS ; SOCIAL ANXIETY ; VISUAL-STIMULI ; TIME-COURSE ; ERP ; CORTISOL ; FACES
引用统计
被引频次:1[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/311026/20930
专题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, 16 Lincui Rd, Beijing, Peoples R China
2.Beijing Normal Univ, IDG McGovern Inst Brain Res, Beijing, Peoples R China
3.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
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Zhang, Liang,Qin, Shaozheng,Yao, Zhuxi,et al. Long-term academic stress enhances early processing of facial expressions[J]. INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY,2016,109(0):138-146.
APA Zhang, Liang,Qin, Shaozheng,Yao, Zhuxi,Zhang, Kan,&Wu, Jianhui.(2016).Long-term academic stress enhances early processing of facial expressions.INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY,109(0),138-146.
MLA Zhang, Liang,et al."Long-term academic stress enhances early processing of facial expressions".INTERNATIONAL JOURNAL OF PSYCHOPHYSIOLOGY 109.0(2016):138-146.
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