One in 100 Americans are sociopathic. How do you spot the psychopath among your work colleagues? Professor Robert Hare, of the University of British Columbia, is a world expert on the "snakes in suits" who scale corporate ladders with consummate ease. He
Psychopaths showed less activity in brain areas involved in assessing the emotion of facial expressions, the British Journal of Psychiatry reports. In particular, they were far less responsive to fearful faces than healthy volunteers.