Abstract
Previous studies have demonstrated that long-term administration of d-amphetamine produces a progressive augmentation of behavior. In the present experiment, rats receiving repeated systemic injections responded to an intraventricular infusion of d-amphetamine with an augmented increase in locomotor activity. These results indicate that central mechanisms, rather than peripheral dispositional factors, subserve the enhanced behavioral response to repeated amphetamine administration.
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Rebec, G.V., Segal, D.S. Enhanced responsiveness to intraventricular infusion of amphetamine following its repeated systemic administration. Psychopharmacology 62, 101–102 (1979). https://doi.org/10.1007/BF00426043
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DOI: https://doi.org/10.1007/BF00426043