Contextual valence modulates the neural dynamics of risk processing

	Contextual valence modulates the neural dynamics of risk processing
	Zheng, Ya1,2,3 ; Li, Qi1 ; Wang, Kai 1,2; Wu, Haiyan1 ; Liu, Xun1
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.
关键词	Risk taking Contextual valence Stimulus-preceding negativity Feedback-related negativity P300
	2015-07-01
语种	英语
发表期刊	PSYCHOPHYSIOLOGY
ISSN	0048-5772
卷号	52 期号:7 页码:895-904
期刊论文类型	Article
收录类别	SSCI
WOS记录号	WOS:000356069700004
引用统计	被引频次：27[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/311026/13384
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, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Dalian Med Univ, Dept Psychol, Dalian, Peoples R China
第一作者单位	中国科学院行为科学重点实验室
推荐引用方式 GB/T 7714	Zheng, Ya,Li, Qi,Wang, Kai,et al. Contextual valence modulates the neural dynamics of risk processing[J]. PSYCHOPHYSIOLOGY,2015,52(7):895-904.
APA	Zheng, Ya,Li, Qi,Wang, Kai,Wu, Haiyan,&Liu, Xun.(2015).Contextual valence modulates the neural dynamics of risk processing.PSYCHOPHYSIOLOGY,52(7),895-904.
MLA	Zheng, Ya,et al."Contextual valence modulates the neural dynamics of risk processing".PSYCHOPHYSIOLOGY 52.7(2015):895-904.

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