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Deep nuclei

Substantia Nigra

dopamine source

Midbrain source of dopamine that fuels striatal movement circuits.

Caudate NucleusPutamenGlobus PallidusSubstantia NigraNucleus Accumbens
Volume salience
30
Connectivity
90
Clinical load
92
Research density
86

Key functions

  • dopamine supply
  • movement vigour
  • reward modulation
  • learning signals

Clinical note

Its degeneration is the hallmark of Parkinson’s disease.

Neighbours

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Region FAQ

What do the meter numbers mean?
Relative 0–100 teaching marks for browsing — not imaging biomarkers or severity scores.
Is this a diagnosis map?
No. Educational anatomy with editorial meters — not clinical advice.