How cultures can shape genetic evolution? Created by: Pavel Dolgov Mordvinova Polina Vanessa Vormittag
Genetic and cultural traits can change through time and produce functional psychological mechanisms for facing adaptive challenges Cultural evolutionary processes that generate crosscultural patterns of psychological variation.
Culture can shape genetic evolution Genes for alcohol tolerance Genes for milk-drinking
Areas of research: 1. Cultural learning mechanisms - ‘when, what and from whom’ we are learning • skill, success and prestige biases • conformist transmission 2. Language acquisition - languages can evolve culturally to fit brains 3. Mechanisms in ethnic groups - predictions about when we expect ethnic phenomena to co-occur and which interventions are likely to work.
How cultures can shape genetic evolution? 1. Alcohol tolerance 2. Drinking Milk 3. Relationship between yam farming and malaria existence 4. Polenesians and type II diabetes (special gene)
Norenzayan, A. , Shariff, A. F. , Gervais, W. M. , Willard, A. K. , Mc. Namara, R. A. , Slingerland, E. , & Henrich, J. (2016). The cultural evolution of prosocial religions. Behavioral and brain sciences, 39. Genealogical relatedness decreases geometrically with increasing group size, and strategies based on direct or indirect reciprocity fail in expanding groups Big God replaced many small gods Context-based cultural learning is important if we wish to construct a comprehensive account of the differential spread of religious beliefs and behaviors These practices exploit human psychology in a host of different ways, including synchrony to build ingroup solidarity and signals (e. g. , sacrifices, painful initiations, celibacy, fasting), and other cultural learning biases (conformity, prestige, and age) to more effectively transmit commitment to others Religion changed everything!
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