Dopamine is a major neurotransmitter of the brain involved in the control of movement, emotion, and cognition; disturbance in dopamine function is associated with disorders like Parkinson's disease, schizophrenia and attention deficit hyperactivity disorder. This volume of the Handbook of Chemical Neuroanatomy provides a series of in depth critical reviews of our present understanding of the most important aspects of dopamine's organisation and disturbed function in the animal and human brain.