Presentation 2003/1/17
Temporal Characteristics of Perception of Facial Expressions : Influence of Stimulus-Duration Changes on Categorical Perception
Atsunobu SUZUKI, Susumu SHIBUI, Kazuo SHIGEMASU,
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Abstract(in English) Emotional attributes of facial expressions are perceived very rapidly. In order to demonstrate that such rapid percetion is categorical, we studied the temporal characteristics of categorical perception (CP) of facial expressions. We examined the influence of stimulus-duration changes upon participants' performance in identification and discrimination tasks. The results showed that CP declined or even disappeared when facial stimuli were presented so briefly as for 50 75 miliseconds. This indicates that CP is not relevant to rapidly occurring affective appraisal, and that emotional information encoded in facial expressions is not categorical.
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Keyword(in English) Facial Expressions / Categorical Perception / Emotion
Paper # HCS2002-32
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Committee HCS
Conference Date 2003/1/17(1days)
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Registration To Human Communication Science (HCS)
Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Temporal Characteristics of Perception of Facial Expressions : Influence of Stimulus-Duration Changes on Categorical Perception
Sub Title (in English)
Keyword(1) Facial Expressions
Keyword(2) Categorical Perception
Keyword(3) Emotion
1st Author's Name Atsunobu SUZUKI
1st Author's Affiliation Graduate School of Arts and Sciences, The University of Tokyo()
2nd Author's Name Susumu SHIBUI
2nd Author's Affiliation Graduate School of Arts and Sciences, The University of Tokyo
3rd Author's Name Kazuo SHIGEMASU
3rd Author's Affiliation Graduate School of Arts and Sciences, The University of Tokyo
Date 2003/1/17
Paper # HCS2002-32
Volume (vol) vol.102
Number (no) 598
Page pp.pp.-
#Pages 6
Date of Issue