After TBI, man has acquired savant syndrome
Jason Padgett was a community college dropout who partied heavily and hated working in his father’s furniture store. But that all changed one night when he was attacked outside a bar. A few blows to the head turned Padgett into a math genius. He is one of only 40 people in the world with “acquired savant syndrome.”
http://nypost.com/2014/04/20/how-a-brain-injury-turned-a-college-dropout-into-a-genius/