AOL.com Video - Pychologists Seek Clues to Scratching Contagion

VIDEO:News

Pychologists Seek Clues to Scratching Contagion

Description:In many people, the sight of someone scratching brings out a primal urge to reciprocate. Psychologists had believed that the desire to join in comes from an innate sense of empathy, but Professor Jamie Ward says his research proves that's not the case. (1:40)

Source: Reuters

Tags: reuters , Jamie Ward