http://news.yahoo.com/s/afp/20070909/hl_afp/scienceneuroscience_070909173324 
They’ve mapped out some of the psychological differences between liberals and conservatives.
Although this article makes a half-hearted attempt to be fair and balanced, it’s clear which side gets the better end of this deal:
The match-up was unmistakable: respondents who had described themselves as liberals showed “significantly greater conflict-related neural activity” when the hypothetical situation called for an unscheduled break in routine.
Conservatives, however, were less flexible, refusing to deviate from old habits “despite signals that this … should be changed.”
First, people who “describe themselves as liberal” aren’t necessarily liberals.  If you …