4.3 Article

Are Moral Intuitions Heritable?

出版社

SPRINGER
DOI: 10.1007/s12110-020-09380-7

关键词

Dual process theory; Genetics; Moral foundations theory; Moral intuitions

资金

  1. US National Science Foundation [0729493,0721707]

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Research has revealed evidence of heritability in moral psychology based on moral dilemma approaches commonly used in Dual Process Theory. These findings not only help to understand the genetic influences in moral decision-making, but also aid in establishing the effectiveness of different intuitionist theoretical frameworks and the diversity of viewpoints among individuals.
Two prominent theoretical frameworks in moral psychology, Moral Foundations and Dual Process Theory, share a broad foundational assumption that individual differences in human morality are dispositional and in part due to genetic variation. The only published direct test of heritability, however, found little evidence of genetic influences on moral judgments using instrumentation approaches associated with Moral Foundations Theory. This raised questions about one of the core assumptions underpinning intuitionist theories of moral psychology. Here we examine the heritability of moral psychology using the moral dilemmas approach commonly used in Dual Process Theory research. Using such measures, we find consistent and significant evidence of heritability. These findings have important implications not only for understanding which measures do, or do not, tap into the genetically influenced aspects of moral decision-making, but in better establishing the utility and validity of different intuitionist theoretical frameworks and the source of why people differ in those frameworks.

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