Democrats and Republicans both adept at ignoring facts, brain scans show
And they get quite a rush from ignoring information that's contrary to their point of view.
A brain-scan technique known as functional magnetic resonance imaging, or fMRI, revealed a consistent pattern. Both Republicans and Democrats consistently denied obvious contradictions for their own candidate but detected contradictions in the opposing candidate.
"We did not see any increased activation of the parts of the brain normally engaged during reasoning," said Drew Westen, director of clinical psychology at Emory University. "What we saw instead was a network of emotion circuits lighting up, including circuits hypothesized to be involved in regulating emotion, and circuits known to be involved in resolving conflicts."
"The result is that partisan beliefs are calcified, and the person can learn very little from new data," Westen said.