Don't miss new Big Think videos! Subscribe by clicking here: http://goo.gl/CPTsV5 Psychologist Kevin Dutton presents the classic psychological test known as "the trolley problem" with a variation. Take the test and measure your response on the psychopathic spectrum. Dutton is the author of The Wisdom of Psychopaths: What Saints, Spies, and Serial Killers Can Teach Us About Success (http://goo.gl/pFwyHC).