Maria Konnikova details research suggesting that judgments of political candidates are “made on the basis of intuitive responses to basic facial features rather than on any deep, rational calculus”:
[Princeton psychologist Alexander] Todorov showed pairs of portraits to roughly a thousand people, and asked them to rate the competence of each person. Unbeknownst to the test subjects, they were looking at candidates for the House and Senate in 2000, 2002, and 2004. In study after study, participants’ responses to the question of whether someone looked competent predicted actual election outcomes at a rate much higher than chance—from sixty-six to seventy-three per cent of the time. Even looking at the faces for as little as one second, Todorov found, yielded the exact same result: a snap judgment that generally identified the winners and losers. Todorov concluded that when we make what we think of as well-reasoned voting decisions, we are actually driven in part by our initial, instinctive reactions to candidates.
The Dish 