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Emotional expressivity as a signal of cooperation

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/43079

Title: Emotional expressivity as a signal of cooperation
Authors: Schug, Joanna Browse this author
Matsumoto, David Browse this author
Horita, Yutaka Browse this author
Yamagishi, Toshio Browse this author →KAKEN DB
Bonnet, Kemberlee Browse this author
Keywords: Emotional expression
Cooperation
Issue Date: Mar-2010
Publisher: Elsevier
Journal Title: Evolution and Human Behavior
Volume: 31
Issue: 2
Start Page: 87
End Page: 94
Publisher DOI: 10.1016/j.evolhumbehav.2009.09.006
Abstract: Previous research has suggested that the spontaneous display of positive emotion may be a reliable signal of cooperative tendency in humans. Consistent with this proposition, several studies have found that self-reported cooperators indeed display higher levels of positive emotions than non-cooperators. In this study, we defined cooperators and non-cooperators in terms of their behavior as the proposer in an ultimatum game, and video-taped their facial expressions as they faced unfair offers as a responder. A detailed analysis of the facial expressions displayed by participants revealed that cooperators displayed greater amounts of emotional expressions, not limited to positive emotional expression, when responding to unfair offers in the ultimatum game. These results suggest that cooperators may be more emotionally expressive than non-cooperators. We speculate that emotional expressivity can be a more reliable signal of cooperativeness than the display of positive emotion alone.
Type: article (author version)
URI: http://hdl.handle.net/2115/43079
Appears in Collections:文学院・文学研究院 (Graduate School of Humanities and Human Sciences / Faculty of Humanities and Human Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 山岸 俊男

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