The Nucleus Accumbens is located below where the head of the caudate and the anterior portion of the putamen meet. It thus is the ventral-most portion of the anterior striatum, and a primary output of the nucleus accumbens is to the ventral analog of the globus pallidus, known as the ventral pallidum. Thus the nucleus accumbens/ventral striatum circuitry can be regarded the limbic loop of the basic basal ganglion circuit.
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