Squeamishness and Political Conservatism Linked

Psychologists at Cornell have found a link between high disgust sensitivity and conservative political views, lending support to the idea that emotion (rather than some form of reason) is the driving factor behind our sense of morality:

“To test whether disgust sensitivity is linked to specific conservative attitudes, the researchers then surveyed 91 Cornell undergraduates with the DSS (Disgust Sensitivity Scale), as well as with questions about their positions on issues including gay marriage, abortion, gun control, labor unions, tax cuts and affirmative action.

Participants who rated higher in disgust sensitivity were more likely to oppose gay marriage and abortion, issues that are related to notions of morality or purity. The researchers also found a weak correlation between disgust sensitivity and support for tax cuts, but no link between disgust sensitivity and the other issues.”

This is an interesting issue, because the disgust reaction is believed to have evolved as a mechanism to help humans avoid disease, and yet here it is playing a part in how we define moral ideas of purity.  One of the more interesting results of the study is that people who generally fit the tag of liberal tend to weigh the moral worth of an act by the actual good or harm it does, and less by their emotional reaction to it, while conservatives seem to be very much the opposite.