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Effect of presentation of a conditioned combined (intrinsic–extrinsic) stimulus (Fonzies-filled plastic box) and of Fonzies feeding on DA output in dialysate from the PFCX (top) and the NAc (bottom). Incentive score, latency to eat, and amount of Fonzies eaten are also indicated. Results are mean ± SEM of results obtained in at least four rats.Filled symbols, p < 0.05 with respect to basal values.
