Abstract
Methylphenidate differentially affected response rates maintained by fixed-interval and fixed-ratio schedules of reinforcement involving termination of conditioned aversive stimulation. Results support and extend a suggestion that the schedule per se may be a more important determinant of drug-behavior dependencies than the nature of the reinforcer used in behavioral control.
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1. These investigations are supported by Grant No. APA-159 from the National Research Council of Canada. Thanks are due to Dr. C. W. Murphy of Ciba Ltd., Montreal, for making a supply of methylphenidate (Ritalin) available to us.
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Stretch, R., Skinner, N. Schedule-control of behavior in squirrel monkeys: Effects of methylphenidate. Psychon Sci 8, 385–386 (1967). https://doi.org/10.3758/BF03332252
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DOI: https://doi.org/10.3758/BF03332252