Kim Peek (born November 11, 1951) is a savant though he is not autistic. He has a photographic or eidetic memory and developmental disabilities, possibly resulting from congenital brain abnormalities. He was the inspiration for the character of Raymond Babbit, played by Dustin Hoffman, in the movie Rain Man.
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 are also missing. There is speculation that his neurons make other connections in the absence of a corpus callosum, which results in an increased memory capacity. According to Peek's father, Fran, Peek was able to memorize things from the age of 16-20 months. He read books, memorized them, and then placed them upside down on the shelf to show that he had finished reading them, a practice he still maintains. He reads a book in about an hour and remembers approximately 98.7% of everything he has read, memorizing vast amounts of information in subjects ranging from history and literature, geography, and numbers to sports, music, and dates. He can recall some 12,000 books from memory. He now resides in Salt Lake City, Utah.
Peek did not walk until the age of four and still walks in a sidelong manner. He cannot button up his shirt and has difficulty with other ordinary motor skills, presumably due to his damaged cerebellum, which normally coordinates motor activities. In psychological testing, Peek has scored well below average on general IQ tests.