Ordinary citizens may start to mirror the angry emotions of politicians they are exposed to in the news. The "emotional contagion" may dive people who normally tune out to politics to head to the polls.
For politically polarized people, their brain activity syncs up with like-minded people who share their political ideologies to perceive information in the same way. However, and regardless of political affiliation, those with personality traits linked to intolerance, and who were less tolerant of daily uncertainty, had more polarized brain responses than those who were more tolerant to uncertainty.
People with strong moral and political convictions who saw images of protestors congruent to their own views showed activation in the brain's reward system. The study suggests violent acts in political protests can arise as a desire to act morally, rather than from bad intentions.
According to researchers, both males and females favor female politicians, with men rating them significantly higher regardless of the topic they address. The study speculates the current political environment may have re-balanced politics in favor of women.