Differential effects of amphetamine on succesive post-reinforcement periods in variable schedules.
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Abstract
Four pigeons responded under a variable-interval schedule of food presentation. Local response rates were recorded in three successive post-reinforcement periods. The cffects of aniphetamine (0.5, 1.0, asid 2.0 mg/kg) on local responde rates were relatively greater on the 10-sec period followlng reinforcements than on later periods. A rate-dependent effect was observed, but iii the opposite direction of that predicted by dic ratedependency hypothesis: Iowa local response rates were proportionately more depressed by the 2.0 mg/kg dose than higher local response rates.
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Todorov, J. C., & Tereda, C. W. (2011). Differential effects of amphetamine on succesive post-reinforcement periods in variable schedules. Mexican Journal of Behavior Analysis, 7(1), 13–20. https://doi.org/10.5514/rmac.v7.i1.23704