Kim Peek (11 November 1951 – 19 December 2009) was an American prodigious savant known as a megasavant. He had a photographic or eidetic memory, but also social developmental disabilities, possibly resulting from congenital brain abnormalities. He was the inspiration for the character of Raymond Babbitt, played by Dustin Hoffman, in the movie Rain Man. He was not autistic and likely had FG syndrome.
Kim Peek was born with macrocephaly, damage to the cerebellum, and, perhaps most important, agenesis of the corpus callosum, a condition in which the bundle of nerves that connects the two hemispheres of the brain is missing; in Peek's case, secondary connectors such as the anterior commissure were also missing. There is speculation that his neurons made other connections in the absence of a corpus callosum, which results in an increased memory capacity.
Death of Kim Peek
Peek died on 19 December 2009, of a heart attack. He is survived by his father. He was 58 years old at the time of his death