Flutterby™! :

The New Yorker: Why facts don't change our minds.

Even after the evidence “for their beliefs has been totally refuted, people fail to make appropriate revisions in those beliefs,” the researchers noted. In this case, the failure was “particularly impressive,” since two data points would never have been enough information to generalize from.

Mentions a couple of books that might be worth reading if one were interested in introspection on such things.