The dopamine pathways in the brain
Dopamine is transmitted via three major pathways. The first extends from the substantia nigra to the caudate nucleus-putamen (neostriatum) and is concerned with sensory stimuli and movement. The second pathway projects from the ventral tegmentum to the mesolimbic forebrain and is thought to be associated with cognitive, reward and emotional behaviour. The third pathway, known as the tubero-infundibular system, is concerned with neuronal control of the hypothalmic-pituatory endocrine system.
Click the image to view high resolution version
Dopamine. In: Neurotransmitters and drugs, 3rd edition. Kruk ZL and Pycock CJ. London, England: Chapman and Hall, 1993:87–115.