some call the madness on capitol hill. there could be cerebral biology at play. in timpal terms, this current report found physical differences between the brains of liberals and conservatives. does that explain it all? it does in some ways because you re looking at liberals showing bigger areas of the brain for decision making, synthesizing different subjects to make decisions, and conservatives showing an area of the brain responsible for emotional learning and fear sensitivity. they re more sensitive to threats than liberals might be. what comes first, then, the chicken or the egg? are you born this way, with a certain area that is more developed or bigger than others? that s the million dollar question, but my instinct tells me this is already environment pressuring biology. one of my favorite studies on london cabbies showed they had