Blunted neural responses to monetary risk in high sensation seekers

	Blunted neural responses to monetary risk in high sensation seekers
	Zheng, Ya1,2,3 ; Liu, Xun1
摘要	The sensation-seeking trait is a valid predictor of various risk-taking behaviors. However, the neural underpinnings of risk processing in sensation seeking are yet unclear. The present event-related potential (ERP) study examined electrophysiological correlates associated with different stages of risky reward processing in sensation seeking. Twenty-one high sensation seekers (HSS) and 22 low sensation seekers (LSS) performed a simple two-choice gambling task. Behaviorally, whereas LSS exhibited a risk-averse pattern, HSS showed a risk-neutral pattern. During the anticipation stage, an increased stimulus-preceding negativity was elicited by high-risk compared to low-risk choices in LSS but not in HSS. During the outcome-appraisal stage, the feedback-related negativity, when calculated as the difference between losses and gains, was enhanced in response to the high-risk versus low-risk outcomes, which appeared for LSS but not for HSS. Further, HSS as compared to LSS exhibited a diminished P300 to both gains and losses. These findings suggest that risk-taking behavior in sensation seeking is expressed as blunted neural responses to risk in the anticipation stage and in the outcome-appraisal stage, which represents a candidate target for drug prevention. (C) 2015 Elsevier Ltd. All rights reserved.
关键词	Sensation seeking Risk processing Stimulus-preceding negativity Feedback-related negativity P300
	2015-05-01
语种	英语
发表期刊	NEUROPSYCHOLOGIA
ISSN	0028-3932
卷号	71 期号:0 页码:173-180
期刊论文类型	Article
收录类别	SSCI
WOS记录号	WOS:000355034700019
引用统计	被引频次：37[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/311026/13369
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,Liu, Xun. Blunted neural responses to monetary risk in high sensation seekers[J]. NEUROPSYCHOLOGIA,2015,71(0):173-180.
APA	Zheng, Ya,&Liu, Xun.(2015).Blunted neural responses to monetary risk in high sensation seekers.NEUROPSYCHOLOGIA,71(0),173-180.
MLA	Zheng, Ya,et al."Blunted neural responses to monetary risk in high sensation seekers".NEUROPSYCHOLOGIA 71.0(2015):173-180.

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