Presentation	2000/5/4 Analysis of Time Differences in Expressions of Spontaneous and Forced Laughter Toru Nakamura,
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Abstract(in English)	The purpose of this study is to analyze the temporal differences in expressions of spontaneous and forced laughter. Facial electromyography from orbicularis oculi and zygomatic muscle region, and respiration changes were recorded. Subjects received Yatabe-Guilford personality inventory, and were classified into two group:sociable or unsociable. We examined three types of laughter:spontaneous laughter, forced laughter when the subjects watched uninteresting comedy video, and forced laughter evoked only by a instruction. We found that the time lags between the eye and the respiration were significantly different among these three types of laughter. Also, in sociable-male and unsociable-female group, the time lags between the eye and the mouth were significantly different.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	laughter / emotional expression / electromyography / respiration / time lag
Paper #	HIP2000-1
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Committee	HIP
Conference Date	2000/5/4(1days)
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Paper Information
Registration To	Human Information Processing (HIP)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Analysis of Time Differences in Expressions of Spontaneous and Forced Laughter
Sub Title (in English)
Keyword(1)	laughter
Keyword(2)	emotional expression
Keyword(3)	electromyography
Keyword(4)	respiration
Keyword(5)	time lag
1st Author's Name	Toru Nakamura
1st Author's Affiliation	Koyama Research Laboratory NTT Communications Science Laboratories()
Date	2000/5/4
Paper #	HIP2000-1
Volume (vol)	vol.100
Number (no)	34
Page	pp.pp.-
#Pages	8
Date of Issue