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  • Title: Conditioned place preference induced by morphine in non-copulating male rats.
    Author: Portillo W, Paredes RG.
    Journal: Behav Brain Res; 2009 Nov 05; 203(2):308-11. PubMed ID: 19416739.
    Abstract:
    Non-copulators (NC) are normal males that fail to display sexual behavior, we evaluate if NC male rats have a functional general reward system. NC male rats were injected with morphine to determine if a reward state, as evaluated by the conditioned place preference (CPP) paradigm, could be induced. Our results demonstrate that NC males develop CPP to a morphine injection, indicating that their general reward system is functional.
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