From the New York Times:
…This came up after I wrote a column earlier this year called “The Daily Me.”
I argued that most of us employ the Internet not to seek the best information, but rather to select information that confirms our prejudices. To overcome that tendency, I argued, we should set aside time for a daily mental workout with an ideological sparring partner.
Afterward, I heard from Jonathan Haidt, a psychology professor at the University of Virginia. “You got the problem right, but the prescription wrong,” he said.
Simply exposing people to counterarguments may not accomplish much, he said, and may inflame antagonisms….
…Some evolutionary psychologists believe that disgust emerged as a protective mechanism against health risks, like feces, spoiled food or corpses. Later, many societies came to apply the same emotion to social “threats.” Humans appear to be the only species that registers disgust, which is why a dog will wag its tail in puzzlement when its horrified owner yanks it back from eating excrement.
Psychologists have developed a “disgust scale” based on how queasy people would be in 27 situations, such as stepping barefoot on an earthworm or smelling urine in a tunnel. Conservatives systematically register more disgust than liberals. (To see how you weigh factors in moral decisions, take the tests at www.yourmorals.org.) ..
