R.A. Bentley
The selectivity of social learning and the tempo of cultural evolution
Bentley, R.A.; O’Brien, M.J.
Authors
M.J. O’Brien
Abstract
Many modern studies of cultural innovation and demographic change rest on the proposition that social learning is a key process in the spread of novel variants. We agree with this proposition, but we also suggest that the selectivity of social learning, with respect to a skill or knowledge, has largely been overlooked in considering how the tempo of cultural evolution depends on population size. We evaluate contrasting predictions ranging from cases of extreme selectivity, where everyone learns from the best individual in the group, to entirely nonselective, unbiased social learning, where everyone learns from one another. At the highly selective end of the spectrum, population size should correlate strongly with the tempo of cultural evolution. At the nonselective end, where social learning is unbiased, there should be little correlation between population size and tempo of cultural evolution. For any given case study, characterizing the relative selectivity of social learning is crucial to successfully predicting the effect of population size on cultural evolution.
Citation
Bentley, R., & O’Brien, M. (2011). The selectivity of social learning and the tempo of cultural evolution. Journal of cultural and evolutionary psychology, 9(2), 125-141. https://doi.org/10.1556/jep.9.2011.18.1
Journal Article Type | Article |
---|---|
Publication Date | Jun 1, 2011 |
Deposit Date | Jan 31, 2011 |
Journal | Journal of Evolutionary Psychology |
Print ISSN | 1589-5254 |
Electronic ISSN | 1589-7397 |
Publisher | Akadémiai Kiadó |
Peer Reviewed | Peer Reviewed |
Volume | 9 |
Issue | 2 |
Pages | 125-141 |
DOI | https://doi.org/10.1556/jep.9.2011.18.1 |
Keywords | Extreme value theory, “Tasmania effect”, Social learning, Tipping points. |
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