Dopamine, activation of ingestion and evaluation of response efficacy: a focus on the within-session time-course of licking burst number
Paolo S. D’Aquila
Abstract:Rationale
Evidence on the effect of dopamine D1-like and D2-like receptor antagonists on licking microstructure and the forced swimming response led us to suggest that (i) dopamine on D1-like receptors plays a role in activating reward-directed responses and (ii) the level of response activation is reboosted based on a process of evaluation of response efficacy requiring dopamine on D2-like receptors. A main piece of evidence in support of this hypothesis is the observation that the dopamine D2-l… Show more
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