Neural mechanism of facial expression perception in intellectually gifted adolescents

	Neural mechanism of facial expression perception in intellectually gifted adolescents
	Liu, Tongran1 ; Xiao, Tong 2; Li, Xiaoyan1 ; Shi, Jiannong1,3
摘要	The current study investigated the relationship between general intelligence and the three stages of facial expression processing. Two groups of adolescents with different levels of general intelligence were required to identify three types of facial expressions (happy, sad, and neutral faces), which were presented with either inverted or upright orientation. Participants' response times and accuracy were measured and event-related potentials (ERPs) were recorded to evaluate neural dynamic processes. The behavioral results showed that high IQ adolescents exhibited shorter response times than average IQ adolescents during the facial expression identification task. The electrophysiological responses showed that no significant IQ-related differences were found for P1 responses during the early visual processing stage. During the middle processing stage, high IQ adolescents had faster structural encoding of inverted faces (shorter N170 latencies) compared to their average IQ peers, and they also showed better structural encoding of sad faces, with larger vertex positive potential (VPP) amplitudes than for neutral faces. During the late processing stage, adolescents with high IQ showed better attentional modulation, with larger late positive potential (LPP) amplitudes compared to adolescents with average IQ. The current study revealed that adolescents with different intellectual levels used different neural dynamic processes during these three stages in the processing of facial expressions. (C) 2015 Elsevier Ireland Ltd. All rights reserved.
关键词	General intelligence Facial expression perception Event-related potentials Adolescents
	2015-04-10
语种	英语
发表期刊	NEUROSCIENCE LETTERS
ISSN	0304-3940
卷号	592 期号:0 页码:22-26
期刊论文类型	Article
收录类别	SCI
WOS记录号	WOS:000352677900005
引用统计	被引频次：5[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/311026/13514
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.Northeastern Univ, Coll Informat Sci & Engn, Nat Language Proc Lab, Shenyang 110819, Liaoning, Peoples R China 3.Aalborg Univ, Dept Learning & Philosophy, Aalborg, Denmark
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	Liu, Tongran,Xiao, Tong,Li, Xiaoyan,et al. Neural mechanism of facial expression perception in intellectually gifted adolescents[J]. NEUROSCIENCE LETTERS,2015,592(0):22-26.
APA	Liu, Tongran,Xiao, Tong,Li, Xiaoyan,&Shi, Jiannong.(2015).Neural mechanism of facial expression perception in intellectually gifted adolescents.NEUROSCIENCE LETTERS,592(0),22-26.
MLA	Liu, Tongran,et al."Neural mechanism of facial expression perception in intellectually gifted adolescents".NEUROSCIENCE LETTERS 592.0(2015):22-26.

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