Abstract
In experiments carried out on male albino rats it was found that instrumental conditioning reinforced with direct intragastric infusion of morphine could be used for the investigation of addiction.
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This investigation was supported by the Polish Academy of Sciences under Agreement No. 09.4.1.1.4.2 for research on “Central regulation of alimentary activity”.
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Trojniar, W., Cytawa, J., Frydrychowski, A. et al. Intragastric self-administration of morphine as a measure of addiction. Psychopharmacologia 37, 359–364 (1974). https://doi.org/10.1007/BF00428922
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DOI: https://doi.org/10.1007/BF00428922