Language Log

"Authoritarian attitudes linked to altered brain anatomy, neuroscientists reveal", PsyPost 4/19/2025:

A new brain imaging study published in the journal Neuroscience has found that authoritarian attitudes on both the political left and right are linked to specific structural differences in the brain. Young adults who scored higher on right-wing authoritarianism had less gray matter volume in the dorsomedial prefrontal cortex, a region involved in social reasoning. Meanwhile, those who endorsed more extreme forms of left-wing authoritarianism showed reduced cortical thickness in the right anterior insula, a brain area tied to empathy and emotion regulation.

The research aimed to better understand the brain-based traits that might underlie authoritarian thinking. Previous studies have documented the psychological characteristics associated with authoritarianism—such as impulsivity, dogmatism, and heightened sensitivity to threat—but few have examined whether these traits are reflected in brain structure.

The cited paper is Jésus Adrián-Ventura et al., "Authoritarianism and the brain: Structural MR correlates associated with polarized left- and right-wing ideology traits", IBRO Neuroscience 5/24/2025.