Deep-seated political differences aren’t simply moral and intellectual: They’re also biological. In reflex tests of 46 political partisans, psychologists found that conservatives were more likely than liberals to be shocked by sudden threats.
Accompanying the physiological differences were deep differences on hot-button political issues: military expansion, the Iraq war, gun control, capital punishment, the Patriot act, warrantless searches, foreign aid, abortion rights, gay marriage, premarital sex and pornography.
"People are experiencing the world, experiencing threat, differently," said University of Nebraska political scientist John Hibbing. "We have very different physiological orientations."
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