Intellectual Disability
Synonyms
Deficiencies, Mental
Deficiency, Mental
Development Disorder, Intellectual
Development Disorders, Intellectual
Disabilities, Intellectual
Disability, Intellectual
Disorder, Intellectual Development
Disorders, Intellectual Development
Idiocy
Intellectual Development Disorder
Intellectual Development Disorders
Intellectual Disabilities
Mental Deficiencies
Mental Deficiency
Mental Retardation
Mental Retardation, Psychosocial
Mental Retardations, Psychosocial
Psychosocial Mental Retardation
Psychosocial Mental Retardations
Retardation, Mental
Retardation, Psychosocial Mental
Retardations, Psychosocial Mental
Subnormal intellectual functioning which originates during the developmental period. This has multiple potential etiologies, including genetic defects and perinatal insults. Intelligence quotient (IQ) scores are commonly used to determine whether an individual has an intellectual disability. IQ scores between 70 and 79 are in the borderline range. Scores below 67 are in the disabled range. (from Joynt, Clinical Neurology, 1992, Ch55, p28)