Neural correlates underlying humans' differential sensitivity to emotionally negative stimuli of varying valences: an ERP study

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	Neural correlates underlying humans' differential sensitivity to emotionally negative stimuli of varying valences: an ERP study
	Yuan Jiajin ; Li Hong ; Chen Antao ; Luo Yuejia; H. Li ; Y. J. Luo
摘要	The present study aims to investigate the neural correlates underlying humans' sensitivity to valence differences in negative stimuli. Event-related potentials (ERPs) for highly negative (HN), moderately negative (MN), and Neutral pictures were recorded while subjects perform a standard/deviant categorization task, irrespective of the emotional valence of the deviants. The results show more negative ERP deflections during HN condition than during MN condition at each 50 ms interval from 350 to 650 ms after stimulus onset (at P3 and slow negative wave (SNW) components). Moreover, emotional effect was also observed for MN stimuli at P3 component (350-450 ms interval). Dipole analyses on the HN-MN difference wave during 350-450 ms interval (P3 component) and that during 450-650 ms interval (SNW component) were both localized to the right medial temporal lobe. Thus, the present study confirmed the human sensitivity to valence variations in emotionally negative stimuli, and further showed that the right medial temporal lobe, in particular, the right hippocampus/amygdala complex, may be the critical neural substrates underlying humans' differential sensitivity to emotionally negative stimuli of varying valences.; The present study aims to investigate the neural correlates underlying humans' sensitivity to valence differences in negative stimuli. Event-related potentials (ERPs) for highly negative (HN), moderately negative (MN), and Neutral pictures were recorded while subjects perform a standard/deviant categorization task, irrespective of the emotional valence of the deviants. The results show more negative ERP deflections during HN condition than during MN condition at each 50 ms interval from 350 to 650 ms after stimulus onset (at P3 and slow negative wave (SNW) components). Moreover, emotional effect was also observed for MN stimuli at P3 component (350-450 ms interval). Dipole analyses on the HN-MN difference wave during 350-450 ms interval (P3 component) and that during 450-650 ms interval (SNW component) were both localized to the right medial temporal lobe. Thus, the present study confirmed the human sensitivity to valence variations in emotionally negative stimuli, and further showed that the right medial temporal lobe, in particular, the right hippocampus/amygdala complex, may be the critical neural substrates underlying humans' differential sensitivity to emotionally negative stimuli of varying valences.
关键词	ERP valence variations sensitivity medial temporal lobe emotional negativity bias
学科领域	情绪心理学 ; 认知神经科学
	2007
语种	英语
发表期刊	PROGRESS IN NATURAL SCIENCE
ISSN	1002-0071
卷号	17 页码:115-121
期刊论文类型	Article
收录类别	ISTP ; SCI ; SSCI
WOS记录号	WOS:000250510000019
引用统计	被引频次：16[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/311026/5571
专题	中国科学院心理研究所回溯数据库(1956-2010)
通讯作者	H. Li; Y. J. Luo
作者单位	1.SW Univ, Minist Educ, Sch Psychol, Key Lab Cognit & Personal, Chongqing 400715, Peoples R China 2.Chinese Acad Sci, Inst Psychol, Beijing 100101, Peoples R China 3.Beijing Normal Univ, State Key Lab Cognit Neurosci & Learning, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Yuan Jiajin,Li Hong,Chen Antao,et al. Neural correlates underlying humans' differential sensitivity to emotionally negative stimuli of varying valences: an ERP study[J]. PROGRESS IN NATURAL SCIENCE,2007,17:115-121.
APA	Yuan Jiajin,Li Hong,Chen Antao,Luo Yuejia,H. Li,&Y. J. Luo.(2007).Neural correlates underlying humans' differential sensitivity to emotionally negative stimuli of varying valences: an ERP study.PROGRESS IN NATURAL SCIENCE,17,115-121.
MLA	Yuan Jiajin,et al."Neural correlates underlying humans' differential sensitivity to emotionally negative stimuli of varying valences: an ERP study".PROGRESS IN NATURAL SCIENCE 17(2007):115-121.

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