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政大機構典藏 > 理學院 > 心理學系 > 期刊論文 > Item 140.119/129037

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/129037

Title:	Sequential effects in facial expression categorization/Emotion
Authors:	楊立行 Yang, Lee-Xieng 徐慎謀* Hsu, Shen-Mou
Contributors:	心理系
Keywords:	facial expression;categorization;sequential effect;contrast effect;assimilation effect
Date:	2013-06
Issue Date:	2020-03-02 15:26:35 (UTC+8)
Abstract:	Facial expressions are highly dynamic signals that are rarely categorized as static, isolated displays. However, the role of sequential context in facial expression categorization is poorly understood. This study examines the fine temporal structure of expression-based categorization on a trial-to-trial basis as participants categorized a sequence of facial expressions. The results showed that the local sequential context provided by preceding facial expressions could bias the categorical judgments of current facial expressions. Two types of categorization biases were found: (a) Assimilation effects– current expressions were categorized as close to the category of the preceding expressions, and (b) contrast effects– current expressions were categorized as away from the category of the preceding expressions. The effects of such categorization biases were modulated by the relative distance between the preceding and current expressions, as well as by the different experimental contexts, possibly including the factors of face identity and the range effect. Thus, the present study suggests that facial expression categorization is not a static process. Rather, the temporal relation between the preceding and current expressions could inform categorization, revealing a more dynamic and adaptive aspect of facial expression processing.
Relation:	Emotion, Vol.13, No.3, pp.573-586
Data Type:	article
DOI 連結:	https://doi.org/10.1037/a0027285
DOI:	10.1037/a0027285
Appears in Collections:	[心理學系] 期刊論文

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