Reward expectation regulates brain responses to task-relevant and task-irrelevant emotional words: ERP evidence

doi:10.1093/scan/nsv097

	Reward expectation regulates brain responses to task-relevant and task-irrelevant emotional words: ERP evidence
	Wei, Ping 1,2; Wang, Di 1,2,3,4; Ji, Liyan 1,2
摘要	We investigated the effect of reward expectation on the processing of emotional words in two experiments using event-related potentials (ERPs). A cue indicating the reward condition of each trial (incentive vs non-incentive) was followed by the presentation of a negative or neutral word, the target. Participants were asked to discrim inate the emotional content of the target word in Experiment 1 and to discriminate the color of the target word in Experiment 2, rendering the emotionality of the target word task-relevant in Experiment 1, but task-irrelevant in Experiment 2. The negative bias effect, in terms of the amplitude difference between ERPs for negative and neutral targets, was modulated by the task-set. In Experiment 1, P3(1) and early posterior negativity revealed a larger negative bias effect in the incentive condition than that in the non-incentive condition. However, in Experiment 2, P3(1) revealed a diminished negative bias effect in the incentive condition compared with that in the non-incentive condition. These results indicate that reward expectation improves top-down attentional concentration to task-relevant information, with enhanced sensitivity to the emotional content of target words when emotionality is task-relevant, but with reduced differential brain responses to emotional words when their content is task-irrelevant.
关键词	Reward Expectation Emotional Stroop Negative Bias Event-related Potential
	2016-02-01
语种	英语
DOI	10.1093/scan/nsv097
发表期刊	SOCIAL COGNITIVE AND AFFECTIVE NEUROSCIENCE
ISSN	1749-5016
卷号	11 期号:2 页码:191-203
期刊论文类型	Article
收录类别	SCI ; SSCI
WOS关键词	EVENT-RELATED POTENTIALS ; STROOP TASK ; COGNITIVE CONTROL ; MOTIVATIONAL INFLUENCES ; ATTENTIONAL CAPTURE ; VISUAL-ATTENTION ; NEURAL ACTIVITY ; TIME-COURSE ; CONFLICT ; MECHANISMS
WOS标题词	Science & Technology ; Social Sciences ; Life Sciences & Biomedicine
WOS研究方向	Neurosciences & Neurology ; Psychology
WOS类目	Neurosciences ; Psychology ; Psychology, Experimental
WOS记录号	WOS:000374226900001
资助机构	Natural Science Foundation of China(31000502 ; 31470979)
引用统计	被引频次：38[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/311026/19966
专题	中国科学院行为科学重点实验室
作者单位	1.Capital Normal Univ, Beijing Key Lab Learning & Cognit, Beijing 100048, Peoples R China 2.Capital Normal Univ, Dept Psychol, Beijing 100048, Peoples R China 3.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Wei, Ping,Wang, Di,Ji, Liyan. Reward expectation regulates brain responses to task-relevant and task-irrelevant emotional words: ERP evidence[J]. SOCIAL COGNITIVE AND AFFECTIVE NEUROSCIENCE,2016,11(2):191-203.
APA	Wei, Ping,Wang, Di,&Ji, Liyan.(2016).Reward expectation regulates brain responses to task-relevant and task-irrelevant emotional words: ERP evidence.SOCIAL COGNITIVE AND AFFECTIVE NEUROSCIENCE,11(2),191-203.
MLA	Wei, Ping,et al."Reward expectation regulates brain responses to task-relevant and task-irrelevant emotional words: ERP evidence".SOCIAL COGNITIVE AND AFFECTIVE NEUROSCIENCE 11.2(2016):191-203.

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