Abstract
Key-pecking behavior of three pigeons was maintained by concurrent variable-interval, variable-interval schedules of reinforcement. Dose-response curves of amphetamine on four operants involved in the choice situation were obtained. None of the doses of amphetamine studied produced any rate-increasing effect on responding, irrespective of the differences in control baseline rates. Responding at the changeover key was relatively more depressed than main-key responding in spite of occuring at lower rates in non-drug conditions.
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Todorov, J.C., Gorayeb, S.R.P., CorrÊa, D.L. et al. Effects of amphetamine on choice behavior of pigeons. Psychopharmacologia 26, 395–400 (1972). https://doi.org/10.1007/BF00421905
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DOI: https://doi.org/10.1007/BF00421905