Abstract: Unspecified Mental Retardation This entry provides a detailed examination of the diagnostic classification known as Unspecified Mental Retardation (UMR), a category historically utilized within clinical psychology and psychiatry to describe individuals presenting with significant, chronic impairments in both intellectual functioning and adaptive behavior. The diagnosis of UMR is inherently a residual one, applied when […]
Overview and Definition of Intellectual Disability Mental retardation, a term historically used in clinical settings, is now referred to in modern diagnostic manuals, such as the DSM-5, as Intellectual Developmental Disorder (IDD) or Intellectual Disability (ID). This developmental disability is characterized by significant limitations in both intellectual functioning (reasoning, learning, problem-solving) and adaptive behavior (conceptual, […]
Introduction: Defining the Term and Context The phrase “mentally defective” stands as a critical, albeit deeply problematic, historical term within the fields of psychology, medicine, and social policy. Historically, it was used to categorize individuals who exhibited significantly subaverage general intellectual functioning, often accompanied by limitations in adaptive behavior. This designation served as the primary […]