Psychiatric disorders in the mentally retarded: types, problems, and challenges.

Because of their high incidence of CNS impairment and low overall interpersonal coping abilities, retarded persons have a greater than average risk for developing associated psychiatric disorders. The authors describe the types of disorders and their incidence and review allied treatment challenges. Advances in recognition of developmental issues and medical management support the trend toward decreased institutionalization and the concurrent increased normalization of the retarded individual.