. "Substantia nigra"@en . "527" . "Substantia+Nigra"@en . . . "A08.186.211.132.659.687" . . "802"^^ . "The substantia nigra is a brain structure located in the mesencephalon (midbrain) that plays an important role in reward, addiction, and movement. Substantia nigra is Latin for \"black substance\", reflecting the fact that parts of the substantia nigra appear darker than neighboring areas due to high levels of neuromelanin in dopaminergic neurons. It was discovered in 1784 by F\u00E9lix Vicq-d'Azyr, and Samuel Thomas von S\u00F6mmerring alluded to this structure in 1791."@en . . . . "188"^^ . "hier" . . . .