A midbrain area called the substantia nigra contains a large concentration of dopamine-producing neurons and is involved in motor control.

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Quizplus · Accepted Answer

The substantia nigra does indeed contain a large concentration of dopamine-producing neurons and is involved in motor control. This area is particularly important in Parkinson's disease, which is characterized by the degeneration of these dopamine-producing neurons in the substantia nigra.

A Midbrain Area Called the Substantia Nigra Contains a Large