Processing of Individual Items during Ensemble Coding of Facial Expressions

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	Processing of Individual Items during Ensemble Coding of Facial Expressions
	Li, Huiyun 1,2; Ji, Luyan 3; Tong, Ke 4; Ren, Naixin 1,2; Chen, Wenfeng1 ; Liu, Chang Hong 5; Fu, Xiaolan1
刊名	FRONTIERS IN PSYCHOLOGY
	2016-09-07
通讯作者邮箱	chenwf@psych.ac.cn
卷号	7 期号:0 页码:1-11
关键词	facial expression emotion individual representation ensemble representation processing resource diffusion model
ISSN号	1664-1078
通讯作者	Chen, Wenfeng
英文摘要	There is growing evidence that human observers are able to extract the mean emotion or other type of information from a set of faces. The most intriguing aspect of this phenomenon is that observers often fail to identify or form a representation for individual faces in a face set. However, most of these results were based on judgments under limited processing resource. We examined a wider range of exposure time and observed how the relationship between the extraction of a mean and representation of individual facial expressions would change. The results showed that with an exposure time of 50 ms for the faces, observers were more sensitive to mean representation over individual representation, replicating the typical findings in the literature. With longer exposure time, however, observers were able to extract both individual and mean representation more accurately. Furthermore, diffusion model analysis revealed that the mean representation is also more prone to suffer from the noise accumulated in redundant processing time and leads to a more conservative decision bias, whereas individual representations seem more resistant to this noise. Results suggest that the encoding of emotional information from multiple faces may take two forms: single face processing and crowd face processing.
WOS标题词	Social Sciences
类目[WOS]	Psychology, Multidisciplinary
研究领域[WOS]	Psychology
关键词[WOS]	VISUAL WORKING-MEMORY ; STATISTICAL PROPERTIES ; REPRESENTATION ; ATTENTION ; FACES ; SETS ; INFORMATION ; PERCEPTION ; MULTIPLE ; SIZE
收录类别	SSCI
语种	英语
WOS记录号	WOS:000382719600001
内容类型	期刊论文
源URL	[http://ir.psych.ac.cn/handle/311026/20539]
专题	心理研究所_脑与认知科学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Psychol, State Key Lab Brain & Cognit Sci, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Univ Ghent, Dept Expt Clin & Hlth Psychol, Ghent, Belgium 4.Univ S Florida, Dept Psychol, Tampa, FL USA 5.Bournemouth Univ, Dept Psychol, Poole, Dorset, England
推荐引用方式 GB/T 7714	Li, Huiyun,Ji, Luyan,Tong, Ke,et al. Processing of Individual Items during Ensemble Coding of Facial Expressions[J]. FRONTIERS IN PSYCHOLOGY,2016,7(0):1-11.
APA	Li, Huiyun.,Ji, Luyan.,Tong, Ke.,Ren, Naixin.,Chen, Wenfeng.,...&Fu, Xiaolan.(2016).Processing of Individual Items during Ensemble Coding of Facial Expressions.FRONTIERS IN PSYCHOLOGY,7(0),1-11.
MLA	Li, Huiyun,et al."Processing of Individual Items during Ensemble Coding of Facial Expressions".FRONTIERS IN PSYCHOLOGY 7.0(2016):1-11.