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  • Title: Enhancement of performance for brain stimulation reward after footshock in rats.
    Author: Sadowski B, Marek P, Panocka I.
    Journal: Acta Neurobiol Exp (Wars); 1984; 44(2):51-9. PubMed ID: 6475571.
    Abstract:
    Rats bearing electrodes in the anterior forebrain region (AF), lateral hypothalamus (LH) or dorsal raphe (DR) nucleus were trained to press lever for brain stimulation reward. Ten minutes self- stimulation in all these placements produced a lowering of pain sensitivity as assessed by the hot-plate test. Electric footshock administered on 1 s on/4 s off paradigm for 10 min prior to self-stimulation elevated lever pressing rates in AF rats and in part of LH rats, but not in DR rats. The results are discussed in terms of opiate theory of reinforcement.
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