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Considering that dopamine neurotransmission in the nucleus accumbens is thought to play an integral role in goal-directed motor behavior, these findings suggest that the prefrontal cortex influences the behavioral impact of amygdala activation via a concomitant active suppression of accumbal dopamine release.owever, during the stimulation, dopamine release increased only in the prefrontal cortex, not in the nucleus accumbens. An increase in accumbal dopamine release was observed during the stimulation if glutamate activation in the prefrontal cortex was inhibited at either presynaptic or postsynaptic levels.
Major inputs to the nucleus accumbens include the prefrontal cortex, basolateral amygdala, and dopaminergic neurons located in the ventral tegmental area (VTA), which connect via the mesolimbic pathway. Thus the nucleus accumbens is often described as one part of a cortico-striato-thalamo-cortical loop.he nucleus accumbens shell is a substructure of the nucleus accumbens. The shell and core together form the entire nucleus accumbens. Location: The shell is the outer region of the nucleus accumbens, and â unlike the core â is considered to be part of the extended amygdala, located at its rostral pole.