Linking Genes and Political Orientations: Testing the Cognitive Ability as Mediator Hypothesis.

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Bibliographic Details
Title: Linking Genes and Political Orientations: Testing the Cognitive Ability as Mediator Hypothesis.
Authors: Oskarsson, Sven, Cesarini, David, Dawes, Christopher T., Fowler, James H., Johannesson, Magnus, Magnusson, Patrik K. E., Teorell, Jan
Source: Political Psychology. Dec2015, Vol. 36 Issue 6, p649-665. 17p. 3 Charts.
Subjects: Cognitive ability, Political psychology, Political participation, Critical thinking, Intellect
Abstract: Recent research has demonstrated that genetic differences explain a sizeable fraction of the variance in political orientations, but little is known about the pathways through which genes might affect political preferences. In this article, we use a uniquely assembled dataset of almost 1,000 Swedish male twin pairs containing detailed information on cognitive ability and political attitudes in order to further examine the genetic and environmental causes of political orientations. Our study makes three distinct contributions to our understanding of the etiology of political orientations: (1) we report heritability estimates across different dimensions of political ideology; (2) we show that cognitive ability and political orientations are related; and (3) we provide evidence consistent with the hypothesis that cognitive ability mediates part of the genetic influence on political orientations. These findings provide important clues about the nature of the complex pathways from molecular genetic variation to political orientations. [ABSTRACT FROM AUTHOR]
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Database: Psychology and Behavioral Sciences Collection
Description
Abstract:Recent research has demonstrated that genetic differences explain a sizeable fraction of the variance in political orientations, but little is known about the pathways through which genes might affect political preferences. In this article, we use a uniquely assembled dataset of almost 1,000 Swedish male twin pairs containing detailed information on cognitive ability and political attitudes in order to further examine the genetic and environmental causes of political orientations. Our study makes three distinct contributions to our understanding of the etiology of political orientations: (1) we report heritability estimates across different dimensions of political ideology; (2) we show that cognitive ability and political orientations are related; and (3) we provide evidence consistent with the hypothesis that cognitive ability mediates part of the genetic influence on political orientations. These findings provide important clues about the nature of the complex pathways from molecular genetic variation to political orientations. [ABSTRACT FROM AUTHOR]
ISSN:0162895X
DOI:10.1111/pops.12230