Answer :
in operant conditioning, reinforcement stimuli induce higher activity in the nucleus accumbens due to the release of dopamine from neurons in the mesolimbic and mesocortical systems
Dopamine is sent to the nucleus accumbens and amygdala via the VTA via the mesolimbic pathway. The nucleus accumbens is a structure that may be located in the ventral medial region of the striatum and is thought to have an impact on the placebo effect, desire, and reward. An essential limbic system component that is linked to emotion is the amygdala. Diseases like addiction and depression are impacted by the mesolimbic pathway.
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