#696 Ryutaro Uchiyama: Cultural Evolution of Genetic Heritability
RECORDED ON JULY 28th 2022.
Dr. Ryutaro Uchiyama is a Research Fellow at Nanyang Technological University, Singapore. His research interests include cultural evolution, cognitive plasticity, and developmental psychobiology.
In this episode, we talk about the cultural evolution of genetic heritability. Dr. Uchiyama explains the cultural psychobiological framework. We talk about aspects of behavior genetics that get reframed in this framework, like heritability, the environment, gene-environment interactions, and gene-environment correlations. We discuss issues with the generalizability of genetic effects across societies and across time, and predicting how heritability should differ between societies, between socioeconomic levels, and other groupings within the same society. We get into the specific example of IQ and the Flynn effect. We also talk a bit about personality variation across societies, and limitations with the Big Five personality inventory.
Time Links:
Intro
Cultural psychobiology
Behavior genetics
How to understand heritability
How can culture influence genetic effects?
Is culture part of the non-shared environment? What is the “environment”?
How cultural dynamics influence gene-environment interactions
Gene-environment correlations
Issues with the generalizability of genetic effects across societies and across time
Predicting how heritability should differ between societies, between socioeconomic levels and other groupings within the same society
Reframing the nature-nurture debate
IQ, and the Flynn effect
Personality variation across societies
Follow Dr. Uchiyama’s work!
Follow Dr. Uchiyama’s work:
University page: https://bit.ly/3ImsmgW
Website: https://bit.ly/3ien4tx
Works on ResearchGate: https://bit.ly/3OHiQbO
Cultural evolutionary production of human psychobiological variation and function: https://bit.ly/3vlAV82
Cultural Evolution of Genetic Heritability: https://bit.ly/3cQ470Q
Twitter handle: @RyutaroUchiyama