"...I further argue, you realize that there are some psychological traits that tend to accompany conservatism - especially in its current form in the United States - that naturally conflict with the nuanced, uncertainty-laden thinking style of scientists and liberals alike (members of the "reality based community"). These traits include authoritarianism - seeing the world in black and white, intolerant of uncertainty - but also a lack of openness to experience (a personality trait), a higher need for closure and so on."
"The sad thing here is that the new research could lead to greater tolerance and understanding - and could even help us depolarize, but that won't happen unless we all bother to understand and talk about what it does - and doesn't - mean."
http://truth-out.org/opinion/item/8591-the-republican-brain-on-the-republican-brain