Journal
COGNITION
Volume 108, Issue 1, Pages 222-231Publisher
ELSEVIER
DOI: 10.1016/j.cognition.2007.12.003
Keywords
kin preference; reciprocal altruism; indirect reciprocity; development; social cognition
Categories
Funding
- NICHD NIH HHS [R01 HD023103-24, R01 HD023103, HD23103, R37 HD023103] Funding Source: Medline
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Observations and experiments show that human adults preferentially share resources with close relations, with people who have shared with them (reciprocity), and with people who have shared with others (indirect reciprocity). These tendencies are consistent with evolutionary theory but could also reflect the shaping effects of experience or instruction in complex, cooperative, and competitive societies. Here, we report evidence for these three tendencies in 3.5-year-old children, despite their limited experience with complex cooperative networks. Three pillars of mature cooperative behavior therefore appear to have roots extending deep into human development. (C) 2007 Elsevier B.V. All rights reserved.
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