Two of these trends are that liberals tend to have more activity in parts of the brain known as the insula and anterior cingulate cortex. Among other functions, the two regions overlap to an extent by dealing with cognitive conflict, in the insula’s case, while the anterior cingulate cortex helps in processing conflicting information. [10 Things You Didn’t Know About the Brain]
Conservatives, on the other hand, have demonstrated more activity in the amygdala, known as the brain’s “fear center.” “If you see a snake or a picture of a snake, the amygdala will light up — it’s a threat detector,” said Iacoboni.
