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|Diagram depicting the main subdivisions of the embryonic vertebrate brain. These regions will later differentiate into forebrain, midbrain and hindbrain structures.|
|Gray's||subject #188 800|
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.
References[change | edit source]
- 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