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題名 Sequential effects in facial expression categorization
作者 徐慎謀
Hsu, Shen-Mou; Yang, Lee-Xieng
貢獻者 心腦學中心
日期 2013
上傳時間 12-五月-2014 15:07:42 (UTC+8)
摘要 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. (PsycINFO Database Record (c) 2013 APA, all rights reserved)
關聯 Emotion, 13, 573-586
資料類型 article
DOI http://dx.doi.org/10.1037/a0027285
dc.contributor 心腦學中心en_US
dc.creator (作者) 徐慎謀zh_TW
dc.creator (作者) Hsu, Shen-Mou; Yang, Lee-Xiengen_US
dc.date (日期) 2013en_US
dc.date.accessioned 12-五月-2014 15:07:42 (UTC+8)-
dc.date.available 12-五月-2014 15:07:42 (UTC+8)-
dc.date.issued (上傳時間) 12-五月-2014 15:07:42 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/65941-
dc.description.abstract (摘要) 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. (PsycINFO Database Record (c) 2013 APA, all rights reserved)en_US
dc.format.extent 107 bytes-
dc.format.mimetype text/html-
dc.language.iso en_US-
dc.relation (關聯) Emotion, 13, 573-586en_US
dc.title (題名) Sequential effects in facial expression categorizationen_US
dc.type (資料類型) articleen
dc.identifier.doi (DOI) 10.1037/a0027285en_US
dc.doi.uri (DOI) http://dx.doi.org/10.1037/a0027285en_US