Conservatives get very frustrated at Democrats not understanding how they could harbor such strange views, resulting in assertions that they must be mentally ill. Neuroscience has revealed there are significant brain differences, particularly the fact Democrats use more emotions when they think, so maybe we shouldn’t be so hard on them. Likewise, Republicans are more influenced by feelings of needing to stay safe.
A flurry of neuroscience studies came out around 2012 examining the differences, with only slight advances since then. A groundbreaking study in 2013 published by PLOS ONE found that when Democrats think, they show more activity in the left insula, a region associated with emotional processing as well as addiction and social and self-awareness. In contrast, Republicans show more activity in the right amygdala, a region that plays a role in the body’s fight-or-flight system, including aggression and negative reactions to violations of personal space.
Researchers found that by merely analyzing that type of brain activity, they could predict whether someone is Republican or Democrat 82.9% of the time. Darren Schreiber, a political neuroscientist at the University of Exeter in the UK, said after he discovered this difference in processing between the two, he changed his mind about whether