Brain stimulation as the reinforcer in alcohol-saline discrimination.


Male Wistar rats were trained to discriminate intraperitoneal injections of 1 g/kg alcohol from saline injections. The reward that reinforced correct choices was an electrical brain stimulation which the animals self-administered according to a FR10 schedule of bar pressing; the stimulation was given in the postero-lateral hypothalamus. Quantitative… (More)


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