Learning disability psychiatry – the future of services

Distinctions between mental illness and learning disability have existed since the last century (Pinel, 1801; Ireland, 1877). The conditions have been accepted as coexisting in the same individual since the beginning of this century (Kraepelin, 1902). More recent papers have investigated the frequency of their coexistence and concluded that most psychiatric disorders are more common in those with learning disability than the general population (Turner, 1989).