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Surprising Brain Differences Between Republicans and Democrats
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It is still considered highly uncool to ascribe a person’s political beliefs, even in part, to that person’s biology: hormones, physiological responses, even brain structures and genes. And no wonder: Doing so raises all kinds of thorny, non-PC issues involving free will, determinism, toleration, and much else.

There’s just one problem: Published scientific research keeps going there, with ever increasing audacity (not to mention growing stacks of data).

The past two weeks have seen not one but two studies published in scientific journals on the biological underpinnings of political ideology. And these studies go straight at the role of genes and the brain in shaping our views, and even our votes.

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First, in the American Journal of Political Science, a team of researchers including Peter Hatemi of Penn State University and Rose McDermott of Brown University studied the relationship between our deep-seated tendencies to experience fear—tendencies that vary from person to person, partly for reasons that seem rooted in our genes—and our political beliefs. What they found is that people who have more fearful disposition also tend to be more politically conservative, and less tolerant of immigrants and people of races different from their own. As McDermott carefully emphasizes, that does not mean that every conservative has a high fear disposition. “It’s not that conservative people are more fearful, it’s that fearful people are more conservative,” as she puts it.

Read more at Mother Jones.

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