The evolution of conformist transmission in social learning when the environment changes periodically

Wataru Nakahashi*

*この研究の対応する著者

研究成果: Article査読

49 被引用数 (Scopus)

抄録

Conformity is often observed in human social learning. Social learners preferentially imitate the majority or most common behavior in many situations, though the strength of conformity varies with the situation. Why has such a psychological tendency evolved? I investigate this problem by extending a standard model of social learning evolution with infinite environmental states (Feldman, M.W., Aoki, K., Kumm, J., 1996. Individual versus social learning: evolutionary analysis in a fluctuating environment. Anthropol. Sci. 104, 209-231) to include conformity bias. I mainly focus on the relationship between the strength of conformity bias that evolves and environmental stability, which is one of the most important factors in the evolution of social learning. Using the evolutionarily stable strategy (ESS) approach, I show that conformity always evolves when environmental stability and the cost of adopting a wrong behavior are small, though environmental stability and the cost of individual learning both negatively affect the strength of conformity.

本文言語English
ページ(範囲)52-66
ページ数15
ジャーナルTheoretical Population Biology
72
1
DOI
出版ステータスPublished - 2007 8月
外部発表はい

ASJC Scopus subject areas

  • 生態、進化、行動および分類学

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