In the O RLY? department: "Study finds left-wing brain, right-wing brain"

[dianeduane]

In a simple experiment reported today in the journal Nature Neuroscience, scientists at New York University and UCLA show that political orientation is related to differences in how the brain processes information.

Previous psychological studies have found that conservatives tend to be more structured and persistent in their judgments whereas liberals are more open to new experiences. The latest study found those traits are not confined to political situations but also influence everyday decisions.

...Participants were college students whose politics ranged from "very liberal" to "very conservative." They were instructed to tap a keyboard when an M appeared on a computer monitor and to refrain from tapping when they saw a W.

M appeared four times more frequently than W, conditioning participants to press a key in knee-jerk fashion whenever they saw a letter.

Each participant was wired to an electroencephalograph that recorded activity in the anterior cingulate cortex, the part of the brain that detects conflicts between a habitual tendency (pressing a key) and a more appropriate response (not pressing the key). Liberals had more brain activity and made fewer mistakes than conservatives when they saw a W, researchers said. Liberals and conservatives were equally accurate in recognizing M.

Researchers got the same results when they repeated the experiment in reverse, asking another set of participants to tap when a W appeared.

Analyzing the data, Sulloway said liberals were 4.9 times as likely as conservatives to show activity in the brain circuits that deal with conflicts, and 2.2 times as likely to score in the top half of the distribution for accuracy.

Sulloway said the results could explain why President Bush demonstrated a single-minded commitment to the Iraq war and why some people perceived Sen. John F. Kerry, the liberal Massachusetts Democrat who opposed Bush in the 2004 presidential race, as a "flip-flopper" for changing his mind about the conflict.

Based on the results, he said, liberals could be expected to more readily accept new social, scientific or religious ideas.

Fascinating...  Must go dig up the full article.

 

Comments

[xnamkrad.livejournal.com]

Hey - I still get confused as to why in the USA, land of the free, one of the worse things to be called is a liberal.

[dduane.livejournal.com]

I kind of like C.S. Lewis's take on this. From The Screwtape Letters, in which a senior devil is coaching a younger one on the fine art of getting human souls into hell: here we have a brief dissertation on the usefulness of getting the temptees all hung up on Fashions or Vogues.

The use of Fashions in thought is to distract the attention of men from their real dangers. We direct the fashionable outcry of each generation against those vices of which it is least in danger and fix its approval on the virtue nearest to that vice which we are trying to make endemic. The game is to have them all running about with fire extinguishers whenever there is a flood, and all crowding to that side of the boat which is already nearly gunwale under. Thus we make it fashionable to expose the dangers of enthusiasm at the very moment when they are all really becoming worldly and lukewarm; a century later, when we are really making them all Byronic and drunk with emotion, the fashionable outcry is directed against the dangers of the mere "understanding". Cruel ages are put on their guard against Sentimentality, feckless and idle ones against Respectability, lecherous ones against Puritanism; and whenever all men are really hastening to be slaves or tyrants we make Liberalism the prime bogey.