|Anatomical terms of neuroanatomy|
The mesencephalon is ancient in origin, meaning its general architecture is shared with the most ancient of vertebrates. Dopamine produced in the substantia nigra plays a role in motivation and habituation of species from humans to insects.
- Mosby’s Medical, nursing and allied health dictionary. 4th ed, Mosby-Year Book 1994. p981
- Breedlove, Watson, & Rosenzweig 2010. Biological psychology. 6th ed. 45-46