It is widely accepted that most psychiatric disorders are associated with cognitive impairment and that neuropsychological approaches can help unravel the mechanisms underlying brain function and help us develop a better understanding of these disorders. In this book, a panel of the world's leading experts describe the development of neuropsychological approaches to the investigation, description, measurement and management of a wide range of mental illnesses. Part One explains the rationale for examining neuropsychological processes within clinical disorders, leading into Part Two summarizing and critiquing the methodological approaches to study. Part Three covers each of the major psychiatric disorders and provides a summary of the neuropsychological findings for each condition. The final section brings together the perspectives of neuroscientists, psychiatrists and philosophers. Essential reading for all those studying the healthy as well as the disordered brain, The Neuropsychology of Mental Illness will appeal to specialists from the fields of mental health, psychology, clinical neuroscience and philosophy.