Thoroughly revised to reflect the latest advances in treatment and research, this volume is the most comprehensive, current clinical reference on psychiatric symptoms associated with movement disorders. This edition's expanded section on Parkinson's disease includes new chapters on anxiety disorders; sleep disorders, sexual dysfunction, apathy, and other neuropsychiatric complications; behavioral side effects of newer medications; and behavioral changes following deep brain stimulation and ablative surgery. Also included is a chapter discussing Parkinson's disease as a model for psychosocial issues in chronic neurodegenerative disease. Other new chapters cover behavioral concomitants of ataxias, essential tremor, dystonias, Creutzfeldt-Jakob disease, and autoimmune neuropsychiatric disorders.