Mapping the brain, politically

There's an interesting column by Nicholas Kristoff about the differences in the brains of liberals versus conservatives.

One difference: Conservatives register more disgust with more things. Maybe, but the most liberal person I know won't use a Porta Potti at a sporting event. Just won't do it.

I think everyone has a certain disgust level. I can't stand the smell of cooked cruciferous vegetables. I'm almost physically ill. But give me a snail fork and some garlic butter and I'm ther