International Journal of Psychology and Psychological Therapy
  

Volume 6 Num. 2 - July 2006

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Los efectos de la anfetamina administrada en el c?rtex prefrontal medial sobre las diferencias individuales en polidipsia inducida por programa [Individual differences on schedule-induced polydipsia: Differential effects of prefrontal cortex amphetamine infusion]

Volume 6 Num. 2 - July 2006 - Pages 261-272

Authors:

Matilde L?pez Grancha, Ginesa L?pez Crespo, Mar?a del Carmen S?nchez Amate, and Pilar Flores Cubos

Abstract:

The aim of this study was to investigate the effect of amphetamine on rats classified in high and low drinkers in a schedule-induced polydipsia (SIP) task. First, male Wistar rats were submitted to a schedule-induced polydipsia (SIP) procedure for 20 days and divided in high and low drinkers if their average water intake was above or below the group median, respectively. Then subjects were submitted to surgery, and after 10 days of schedule-induced drinking recovery, amphetamine was administered in the medial prefrontal cortex. Results indicate a differential effect of amphetamine on high and low drinkers. Those results were discussed on the hypothesis of a different dopamin?rgic function between high and low drinkers.

Key words:

Schedule-induced polydipsia, Amphetamine, Individual differences, Medial prefrontal cortex

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