> One stem cell population is adjacent to the substantia nigra, but produces neurons which migrate to an entirely different region of the brain (involving a "ce

> One stem cell population is adjacent to the substantia nigra, but produces neurons which migrate to an entirely different region of the brain (involving a "cell highway" known as the rostral migratory stream). However, the migration can be demand driven, in response to disease conditions. https://pubmed.ncbi.nlm.nih.gov/18394605/ https://pubmed.ncbi.nlm.nih.gov/18394605/