Liberal fears are contagious

It has become a commonplace among social psychologists that one of the characteristics that unites conservatives is our sensitivity to disgust. A succession of experiments carried out over the past ten years seems to show that a person’s political views are linked to how disgusting they find the idea of, say, touching a toilet seat in a public lavatory. The more repulsed you are, the more likely you are to hold conservative positions on issues like gay marriage, immigration and abortion. These findings have been lapped up by liberal social scientists since they confirm their view of conservatives as uptight control freaks whose love of hierarchy and tradition is rooted in an irrational fear of contagion.

But like many findings in psychology, these experiments haven’t always been easy to replicate and a meta-analysis of 24 studies in 2013 found that the relationship between conservative opinions and sensitivity to disgust was fairly modest.