A new brain imaging study found links between authoritarian attitudes (both left- and right-wing) and structural differences in the brain, specifically reduced gray matter volume in the dorsomedial prefrontal cortex (right-wing) and reduced cortical thickness in the right anterior insula (left-wing).
A study in Psychiatry Research: Neuroimaging found structural differences in the precuneus, a brain region associated with memory and self-focus, in individuals who tend to ruminate, which is common in depression. The findings suggest that rumination may result from network-level interactions in the brain.
