Multiple subtypes of dopamine receptors exist in the brain. This volume reviews the characteristics of D-1, D-2, D-3 and D-4 receptors and describes the current concepts of their involvement in motor disorders and in the control of schizophrenia. the book will be of great interest to professionals in pharmacology, medicinal chemistry, neuroscience, cell biology and therapeutic applications in clinical medicine as antipsychotics, anti-Parkinson's disease and related areas.