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题名:
Contextual valence modulates the neural dynamics of risk processing
作者: Zheng, Ya1,2,3; Li, Qi(李琦)1; Wang, Kai1,2; Wu, Haiyan1; Liu, Xun(刘勋)1
文章类型: Article
关键词: Risk taking ; Contextual valence ; Stimulus-preceding negativity ; Feedback-related negativity ; P300
刊名: PSYCHOPHYSIOLOGY
ISSN号: 0048-5772
出版日期: 2015-07-01
卷号: 52, 期号:7, 页码:895-904
收录类别: SSCI
英文摘要: A well-known bias in risky decision making is that most people tend to be risk averse when gains are salient but risk seeking when losses are salient. The present study addressed the neural dynamics of this process by recording ERPs during a gambling task in a gain and a loss context. Behaviorally, participants were found to be risk averse in the gain context but risk neutral in the loss context. During the anticipation stage, an increased stimulus-preceding negativity was elicited by high- versus low-risk choices in the gain but not the loss context. During the outcome-appraisal stage, the feedback-related negativity was larger after high- versus low-risk choices in the gain instead of the loss context. For the P300, an outcome valence effect (a larger P300 for gain vs. loss outcomes) emerged following the high- versus low-risk decisions in the gain but not the loss context. Our findings suggest that risk processing can be modulated by the context of valence during the anticipation stage and by both the contextual valence and the outcome valence during the outcome-appraisal stage, which may be driven by the motivational salience imposed by the context of valence.
语种: 英语
WOS记录号: WOS:000356069700004
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.psych.ac.cn/handle/311026/13384
Appears in Collections:中国科学院行为科学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Dalian Med Univ, Dept Psychol, Dalian, Peoples R China

Recommended Citation:
Zheng, Ya,Li, Qi,Wang, Kai,et al. Contextual valence modulates the neural dynamics of risk processing[J]. PSYCHOPHYSIOLOGY,2015,52(7):895-904.
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