Neuropsychiatric Disorders: Clinical PerspectivesAbout This Hardback The disorders which are classified as organic brain diseases and which show psychiatric symptoms are known as neuropsychiatric disorders. They can cause cognitive impairment such as personality behavioral changes, dementia and amnesic syndrome. These are studied within the field of neuropsychiatry, which in turn falls under the umbrella of psychiatry. The study of the complex interrelationship between brain function and behavior