Temporal course of emotional negativity bias: An ERP study
Huang, YX; Luo, YJ; Y. J. Luo
2006-05-01
发表期刊NEUROSCIENCE LETTERS
ISSN0304-3940
文章类型Article
卷号398期号:1-2页码:91-96
摘要There is considerable evidence that people are especially sensitive to emotionally negative materials. However, the temporal course of the negativity bias is still unclear. To address this issue, we observed the changes of P2, late positive components (LPC) and lateralized readiness potential (LRP) under positive, negative and neutral conditions, with International Affective Picture System (IAPS) pictures as emotional stimuli. We found that the amplitude of P2 in the negative block was significantly larger than that in the positive block, indicating that the attentional negativity bias occurred very early in emotion perception. The LPC amplitude evoked by negative pictures was larger than that by positive and neutral pictures, suggesting that the negativity bias also occurred in a later evaluation stage of emotion processing. The response-locked LRP interval was shortest in the block of negative pictures, indicating that the negative contents elicited a reaction priming effect. Above all, this research showed that emotional negativity bias could occur in several temporal stages distinguished by attention, evaluation and reaction readiness periods.; There is considerable evidence that people are especially sensitive to emotionally negative materials. However, the temporal course of the negativity bias is still unclear. To address this issue, we observed the changes of P2, late positive components (LPC) and lateralized readiness potential (LRP) under positive, negative and neutral conditions, with International Affective Picture System (IAPS) pictures as emotional stimuli. We found that the amplitude of P2 in the negative block was significantly larger than that in the positive block, indicating that the attentional negativity bias occurred very early in emotion perception. The LPC amplitude evoked by negative pictures was larger than that by positive and neutral pictures, suggesting that the negativity bias also occurred in a later evaluation stage of emotion processing. The response-locked LRP interval was shortest in the block of negative pictures, indicating that the negative contents elicited a reaction priming effect. Above all, this research showed that emotional negativity bias could occur in several temporal stages distinguished by attention, evaluation and reaction readiness periods. (C) 2005 Elsevier Ireland Ltd. All rights reserved.
关键词temporal course emotion negativity bias event-related potentials
学科领域认知神经科学
收录类别SCI ; SSCI
语种英语
WOS记录号WOS:000236914500019
引用统计
被引频次:174[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/311026/5725
专题中国科学院心理研究所回溯数据库(1956-2010)
通讯作者Y. J. Luo
作者单位1.Beijing Normal Univ, Natl Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China
2.Chinese Acad Sci, Key Lab Mental Hlth, Inst Psychol, Beijing 100101, Peoples R China
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Huang, YX,Luo, YJ,Y. J. Luo. Temporal course of emotional negativity bias: An ERP study[J]. NEUROSCIENCE LETTERS,2006,398(1-2):91-96.
APA Huang, YX,Luo, YJ,&Y. J. Luo.(2006).Temporal course of emotional negativity bias: An ERP study.NEUROSCIENCE LETTERS,398(1-2),91-96.
MLA Huang, YX,et al."Temporal course of emotional negativity bias: An ERP study".NEUROSCIENCE LETTERS 398.1-2(2006):91-96.
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