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題名 Sequential effects in facial expression categorization
作者 徐慎謀;楊立行
Hsu,SM;Yang,LX.
貢獻者 心理系
關鍵詞 facial expression; categorization; sequential effect; contrast effect; assimilation effect
日期 2013.06
上傳時間 22-Jul-2014 14:44:00 (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.
關聯 Emotion, 13(3), 573-586
資料類型 article
DOI http://dx.doi.org/10.1037/a0027285
dc.contributor 心理系en_US
dc.creator (作者) 徐慎謀;楊立行zh_TW
dc.creator (作者) Hsu,SM;Yang,LX.en_US
dc.date (日期) 2013.06en_US
dc.date.accessioned 22-Jul-2014 14:44:00 (UTC+8)-
dc.date.available 22-Jul-2014 14:44:00 (UTC+8)-
dc.date.issued (上傳時間) 22-Jul-2014 14:44:00 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/67688-
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.en_US
dc.format.extent 817304 bytes-
dc.format.mimetype application/pdf-
dc.language.iso en_US-
dc.relation (關聯) Emotion, 13(3), 573-586en_US
dc.subject (關鍵詞) facial expression; categorization; sequential effect; contrast effect; assimilation effecten_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