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The present study describes the induction of gamma-hydroxybutyric acid (GHB) preference over water in rats. GHB solution (1% w/v in water) was initially offered as the sole fluid available for 14 consecutive days. Subsequently, rats were given a free choice of GHB solution and tap water for 20 consecutive weeks. Under the free-choice regimen, all rats(More)
The present study provides a detailed description of a novel drug discrimination procedure employing a T-maze and food reinforcement. Three groups of rats (n = 5) were trained to run one of the two arms of the maze after the i.g. administration of either 1.0, 1.5 or 2.0 g/kg ethanol (chosen as training drug) and the opposite arm after administration of(More)
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