The evolution of conformist transmission in social learning when the environment changes periodically
The evolution of conformist transmission in social learning when the environment changes periodically
复制标题
DOI：
10.1016/j.tpb.2007.03.003
复制
发表时间：
2007-08-01
影响因子：
1.4
通讯作者：
Nakahashi, Wataru
中科院分区：
文献类型：
--
作者：
Nakahashi, Wataru
从众在人类的社会学习中经常被观察到。在许多情况下，社会学习者倾向于模仿大多数或最常见的行为，尽管从众的强度随情况而变化。为什么会有这样的心理倾向呢？我通过扩展具有无限环境状态的社会学习进化的标准模型来研究这个问题（Feldman, m.w., Aoki， K., Kumm， J., 1996）。个体与社会学习：波动环境中的进化分析。Anthropol。科学学报，104,209-231)。我主要研究从众偏见的强度与环境稳定性的关系，这是社会学习进化中最重要的因素之一。使用进化稳定策略（ESS）方法，我表明，当环境稳定性和采取错误行为的成本很小时，从众总是在进化，尽管环境稳定性和个人学习的成本都会对从众的强度产生负面影响。(c) 2007爱思唯尔公司版权所有。
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. (c) 2007 Elsevier Inc. All rights reserved.