Unfortunately, the actual study in question was so narrow in scope as to be practically meaningless. According to the LA Times, liberals were more likely to do the Right Thing (that is, a politically correct, and therefore, liberal thing) when confronted by a "W" on a computer screen. Strange, considering that it is the conservatives who are so infatuated with the letter that they put a "W" sticker on their cars.
I'm all for believing that liberals have smarter brains than conservatives. Now the question is, are we smart enough to win back the Oval Office?