Quote of note:

The new interest has yielded some results that will themselves provoke partisan reactions: Studies presented at the conference, for example, produced evidence that emotions and implicit assumptions often influence why people choose their political affiliations, and that partisans stubbornly discount any information that challenges their preexisting beliefs.

Emory University psychologist Drew Westen put self-identified Democratic and Republican partisans in brain scanners and asked them to evaluate negative information about various candidates. Both groups were quick to spot inconsistency and hypocrisy -- but only in candidates they opposed.

When presented with negative information about the candidates they liked, partisans of all stripes found ways to discount it, Westen said. When the unpalatable information was rejected, furthermore, the brain scans showed that volunteers gave themselves feel-good pats -- the scans showed that "reward centers" in volunteers' brains were activated. The psychologist observed that the way these subjects dealt with unwelcome information had curious parallels with drug addiction as addicts also reward themselves for wrong-headed behavior.

Study Ties Political Leanings to Hidden Biases
By Shankar Vedantam
Washington Post Staff Writer
Monday, January 30, 2006; A05

Put a group of people together at a party and observe how they behave. Differently than when they are alone? Differently than when they are with family? What if they're in a stadium instead of at a party? What if they're all men?

The field of social psychology has long been focused on how social environments affect the way people behave. But social psychologists are people, too, and as the United States has become increasingly politically polarized, they have grown increasingly interested in examining what drives these sharp divides: red states vs. blue states; pro-Iraq war vs. anti-Iraq war; pro-same-sex marriage vs. anti-same-sex marriage. And they have begun to study political behavior using such specialized tools as sophisticated psychological tests and brain scans.

"In my own family, for example, there are stark differences, not just of opinion but very profound differences in how we view the world," said Brenda Major, a psychologist at the University of California at Santa Barbara and the president of the Society for Personality and Social Psychology, which had a conference last week that showcased several provocative psychological studies about the nature of political belief.

The new interest has yielded some results that will themselves provoke partisan reactions: Studies presented at the conference, for example, produced evidence that emotions and implicit assumptions often influence why people choose their political affiliations, and that partisans stubbornly discount any information that challenges their preexisting beliefs.