Immortalized in the movie rain man, dustin hoffman's character performs mind-boggling feats of mathematical calculations, yet cannot perform the simplest of tasks such as determining how much change he would receive when buying a candy bar. this is known as syndrome.

Savant syndrome.

Explanation:

Is a remarkable condition in which people with autism, mental handicaps or major mental illness, have exceptional abilities in a specific area in contrast to their overall disability.

Children and adults typically have a lowered level of intelligence, difficulties in verbal and non-verbal communication, in the skills of social interaction, and in play activities. The disorder makes it hard for them to relate to the outside world, and a marked tendency to withdraw from human interactions and become preoccupied with attachment to objects. There is a failure in human intersubjectivity, characterized by difficulties in joint action, turn taking, and shared activities. Aggressive and/or self-injurious behaviour may well be present. Often there will be continuous repetition of body movements (hand flapping, rocking), a rigidity of actions, resistance to changes in routine, and a "desire" for sameness.

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