The planning and provision of psychiatric services for adults with intellectual disability

The functioning of people with intellectual disability (ID) is affected by many factors. As well as their ID, their ability to communicate with others, their social competency, personality, life experiences and circumstances, and their health (including mental health) also influence their behaviour and adjustment. This chapter focuses on the development and provision of services for adults with ID who have additional psychiatric and behavioural disorders. Developments have taken place in various parts of the world in recent years and a wide range of services has emerged.