liberals, conservatives wired differently?

We all know that liberals and conservatives are far apart on health care. But in the way their brains work? Even in automatic reflexes, like blinking? Or the way their glands secrete moisture?

That’s the suggestion of some recent research. It hints that the roots of political judgments may lie partly in fundamental personality types and even in the hard-wiring of our brains.

Researchers have found, for example, that some humans are particularly alert to threats, particularly primed to feel vulnerable and perceive danger. Those people are more likely to be conservatives.

That makes intuitive sense: If you are more acutely sensitive to risks and more fearful of attack, you also may be more aggressive in arming yourself and more wary of foreigners.