http://www.sciencedaily.com/releases/2010/06/1006091113...ScienceDaily (June 10, 2010) — There is a strong relationship between a voter's politics and his personality, according to new research from the University of Toronto. Researchers at UofT have shown that the psychological concern for compassion and equality is associated with a liberal mindset, while the concern for order and respect of social norms is associated with a conservative mindset.
"Conservatives tend to be higher in a personality trait called orderliness and lower in openness. This means that they're more concerned about a sense of order and tradition, expressing a deep psychological motive to preserve the current social structure," says Jacob Hirsh, a post-doctoral psychology student at UofT and lead author of the study.
....
"Our data shows that liberalism is more often associated with the underlying motives for compassion, empathy and equality," says Hirsh.
....
People's values are deeply embedded in their biology and genetic heritage," says UofT Professor and co-author Jordan Peterson. "This means you have to take a deeper view of political values and morality in terms of where these motives are coming from; political preferences do not emerge from a simple rational consideration of the issues."
--------------
Perhaps explains why dialog is very difficult between strong liberals and conservatives. Fundamental personality differences are difficult to bridge
--> reposted from science forum, after suggestion from a DUer to post here so more people can see this.