A growing body of research suggests that we are a nation divided not only by partisanship or how we view various issues, but also by dramatically different cognitive styles. Sociologists and psychologists are getting a better understanding about the ways that deep seated emotional responses effect our ideological viewpoints.

Last week, Moyers & Company caught up with Mother Jones science writer Chris Mooney, host of the Inquiring Minds podcast and author of The Republican Brain: the Science of Why They Deny Science – and Reality, to talk about what this research may tell us about the attitudes of those involved in the tea party movement. Below is a lightly-edited transcript of our discussion.

Joshua Holland: Chris, let’s talk about morality. I’m personally offended by the tea partiers’ resistance to giving uninsured people health care. I find it a bit shocking that a political movement could be so filled with animosity toward the idea. But according to NYU social psychologist Jonathan Haidt - and other scholars - conservatives have a different moral compass entirely. Can you tell us a little bit about that?

Chris Mooney: Absolutely. There are many people doing research in the psychology of politics. Jonathan Haidt is a pioneer in the […]