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Proc Biol Sci. 2012 Feb 22;279(1729):653-62. doi: 10.1098/rspb.2011.1172. Epub 2011 Jul 27.

The evolutionary basis of human social learning.

Author information

1
Centre for Social Learning and Cognitive Evolution, School of Biology, University of St Andrews, Bute Medical Building, St Andrews, Fife KY16 9TS, UK.

Abstract

Humans are characterized by an extreme dependence on culturally transmitted information. Such dependence requires the complex integration of social and asocial information to generate effective learning and decision making. Recent formal theory predicts that natural selection should favour adaptive learning strategies, but relevant empirical work is scarce and rarely examines multiple strategies or tasks. We tested nine hypotheses derived from theoretical models, running a series of experiments investigating factors affecting when and how humans use social information, and whether such behaviour is adaptive, across several computer-based tasks. The number of demonstrators, consensus among demonstrators, confidence of subjects, task difficulty, number of sessions, cost of asocial learning, subject performance and demonstrator performance all influenced subjects' use of social information, and did so adaptively. Our analysis provides strong support for the hypothesis that human social learning is regulated by adaptive learning rules.

PMID:
21795267
PMCID:
PMC3248730
DOI:
10.1098/rspb.2011.1172
[Indexed for MEDLINE]
Free PMC Article

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