A childhood disorder characterized by profound isolation, inhibited speech, and intolerance of variance in routine or surroundings, autism; idiot savant.
A syndrome appearing in childhood with symptoms of self-absorption, inaccessibility, aloneness, avoidance of eye contact, inability to relate, highly repetitive play, rage reactions if interrupted, rhythmical body movements, and many language disturbances. The cause is unknown, but some research suggests that anomalies in serotonin transport increase the likelihood of the disease.
This is a different term for autism, a condition that typically emerges in early childhood, leading to significant disruptions in language and communication abilities.