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Saturday, March 28, 2015

Scientists Are Beginning to Figure Out Why Wingnuts Are…Wingnuts

Ten years ago, it was wildly controversial to talk about psychological differences between liberals and wingnuts. Today, it's becoming hard not to. .
by Chris Mooney
Scientists are using eye-tracking devices to detect automatic response differences between liberals and wingnuts. University of Nebraska-Lincoln
You could be forgiven for not having browsed yet through the latest issue of the journal Behavioral and Brain Sciences. If you care about politics, though, you'll find a punchline therein that is pretty extraordinary.
Behavioral and Brain Sciences employs a rather unique practice called "Open Peer Commentary": An article of major significance is published, a large number of fellow scholars comment on it, and then the original author responds to all of them. The approach has many virtues, one of which being that it lets you see where a community of scholars and thinkers stand with respect to a controversial or provocative scientific idea. And in the latest issue of the journal, this process reveals the following conclusion: A large body of political scientists and political psychologists now concur that liberals and wingnuts disagree about politics in part because they are different people at the level of personality, psychology, and even traits like physiology and genetics.
That's a big deal. It challenges everything that we thought we knew about politics-upending the idea that we get our beliefs solely from our upbringing, from our friends and families, from our personal economic interests, and calling into question the notion that in politics, we can really change (most of us, anyway).
It is a "virtually inescapable conclusion" that the "cognitive-motivational styles of leftists and wingnuts are quite different."
The occasion of this revelation is a paper by John Hibbing of the University of Nebraska and his colleagues, arguing that political conservatives have a "negativity bias," meaning that they are physiologically more attuned to negative (threatening, disgusting) stimuli in their environments. (The paper can be read for free here.) In the process, Hibbing et al. marshal a large body of evidence, including their own experiments using eye trackers and other devices to measure the involuntary responses of political partisans to different types of images. One finding? That wingnuts respond much more rapidly to threatening and aversive stimuli (for instance, images of "a very large spider on the face of a frightened person, a dazed individual with a bloody face, and an open wound with maggots in it," as one of their papers put it).
In other words, the wingnut ideology, and especially one of its major facets-centered on a strong military, tough law enforcement, resistance to immigration, widespread availability of guns-would seem well tailored for an underlying, threat-oriented biology.
The authors go on to speculate that this ultimately reflects an evolutionary imperative. "One possibility," they write, "is that a strong negativity bias was extremely useful in the Pleistocene," when it would have been super-helpful in preventing you from getting killed. (The Pleistocene epoch lasted from roughly 2.5 million years ago until 12,000 years ago.

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