Differentiates between mental retardation and psychosis. Deals with the founding of the Mental Retardation Institute in Bangkok. Gives a definition of "mental retardation" and contains statistical data on the number of mentally retarded people in Thailand. Explains the causes of mental retardation and lists its different levels. Describes the diagnosis of mental retardation. Deals with medical treatment, focusing on the importance of education for these people. Describes the responsibilities of the mental ratardation hospital. [TAIC]