School of Social and Behavioral Sciences, University of Arkansas at Monticello, Monticello, AR, USA.
Department of Psychology, University of Toledo, Toledo, OH, USA.
Laterality. 2020 Nov;25(6):641-653. doi: 10.1080/1357650X.2020.1810061. Epub 2020 Aug 25.
A growing number of studies demonstrate that consistent handers, people who use their dominant hand for all or most manual tasks, are less cognitively flexible than inconsistent handers, people who use their non-dominant hands at least some of the time. A recent hypothesis suggests that differences in handedness emerged evolutionarily because populations benefited from a balance between cognitively rigid and cognitively flexible people. One expectation is that cognitively rigid consistent handers would support more authoritarian policies or candidates. To test this idea, we looked at handedness, gender, and political affiliation as predictors of support for Donald Trump, a candidate whose supporters self-report being more authoritarian, in the 2016 primary. Our data show that in the Republican Primary, consistent handers report more support than inconsistent for Donald Trump. When authoritarianism was added as a covariate, the handedness effect disappeared. Further analyses showed that authoritarianism mediates the relationship between handedness and support for Donald Trump. In the Democratic Primary, there was a main effect of gender. Women reported more support than men for Hillary Clinton.
越来越多的研究表明，惯用右手的人（即所有或大多数手动任务都使用优势手的人）的认知灵活性不如惯用左手的人（即至少有时使用非优势手的人）。最近的一个假设表明，惯用手的差异是在进化中出现的，因为人群从认知僵化和认知灵活的人之间的平衡中受益。一种预期是，认知僵化的惯用右手者会支持更独裁的政策或候选人。为了检验这一想法，我们研究了惯用手、性别和政治派别作为预测唐纳德·特朗普（Donald Trump）支持率的指标，唐纳德·特朗普是一位支持者自称为更独裁的候选人。我们的数据显示，在共和党初选中，惯用右手者比惯用左手者更支持唐纳德·特朗普。当将独裁主义作为协变量加入时，惯用手的影响就消失了。进一步的分析表明，独裁主义在惯用手和对唐纳德·特朗普的支持之间起着中介作用。在民主党初选中，性别有主要影响。女性对希拉里·克林顿的支持率高于男性。
