Processing of Individual Items during Ensemble Coding of Facial Expressions

doi:10.3389/fpsyg.2016.01332

	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,ChangHong 5; Fu,Xiaolan1
第一作者	Li, Huiyun
通讯作者邮箱	chenwf@psych.ac.cn
心理所单位排序	1
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.
关键词	Facial Expression Emotion Individual Representation Ensemble Representation Processing Resource Diffusion Model
	2016-09-07
语种	英语
DOI	10.3389/fpsyg.2016.01332
发表期刊	FRONTIERS IN PSYCHOLOGY
ISSN	1664-1078
卷号	7 页码:1-11
期刊论文类型	Article
URL	查看原文
收录类别	SSCI
WOS关键词	VISUAL WORKING-MEMORY ; STATISTICAL PROPERTIES ; REPRESENTATION ; ATTENTION ; FACES ; SETS ; INFORMATION ; PERCEPTION ; MULTIPLE ; SIZE
WOS标题词	Social Sciences
WOS研究方向	Psychology
WOS类目	Psychology, Multidisciplinary
WOS记录号	WOS:000382719600001
WOS分区	Q2
Q分类	Q2
取样对象	人类
性别	男 ; 女
年龄组	青年（18岁-29岁）
被试数量	Experiment1:20, Experiment2:16
国家或地区	China
测试或任务	membership identification paradigm
因变量指标	ratio of “yes” response; Discriminating sensitivity A'; reaction time (RT); Drift rate (v); boundary separation (a); non-decisional time (t0)
统计方法	repeated ANOVA; Cox-Small test; the diffusion model
资助机构	National Natural Science Foundation of China(31371031)
引用统计	被引频次：42[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.psych.ac.cn/handle/311026/20539
专题	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
第一作者单位	脑与认知科学国家重点实验室
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,2016,7:1-11.
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,7,1-11.
MLA	Li,Huiyun,et al."Processing of Individual Items during Ensemble Coding of Facial Expressions".FRONTIERS IN PSYCHOLOGY 7(2016):1-11.

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