期刊
CURRENT OPINION IN PSYCHOLOGY
卷 7, 期 -, 页码 39-43出版社
ELSEVIER
DOI: 10.1016/j.copsyc.2015.07.015
关键词
-
资金
- Grants-in-Aid for Scientific Research [15H05730] Funding Source: KAKEN
Parochial altruism - the human inclination toward costly intragroup cooperation and inter-group aggression without expectations of future returns - requires group selection logic to explain its evolution. We examined experimental evidence for three implications of the group selection account: the unconditional nature of intra-group cooperation; the non-instrumental, non-retaliatory, and costly nature of inter-group aggression; and the positive relationship between intra-group cooperation and inter-group aggression. Laboratory experiments revealed no support for the unconditional nature of intra-group cooperation, mostly negative evidence for the non-instrumental, non-retaliatory, and costly nature of inter-group aggression, and mixed evidence for the positive relationship between intra-group cooperation and inter-group aggression. Caution against premature conclusions about the role of group selection in the evolution of parochial altruism is advised.
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