Abstract
Twenty mg/kg IP injections of atropine were administered to albino rats after their responding had stabilized on mult FR 80 DRL 15 sec or on mult VI 30 sec FI 30 sec. The first injections of atropine depressed responding on the FR, VI, and FI components and increased responding on the DRL component. Replication injections consistently reproduced the effects on the FR and VI components but had inconsistent effects on the DRL and FI components.
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This research was supported in part by USPH Grant NIMH 4853 to Dr. L. I. O’Kelly.
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Willis, R.D., Windland, L.M. Effects of repeated administrations of atropine on two multiple schedules. Psychon Sci 13, 139–140 (1968). https://doi.org/10.3758/BF03342449
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DOI: https://doi.org/10.3758/BF03342449