Psychonomic Science

, Volume 1, Issue 1–12, pp 349–350 | Cite as

Amphetamine differentially affects temporally spaced bar pressing and collateral water drinking

  • Evalyn F. Segal
  • Sam A. Deadwyler


Rats trained to space bar presses 20 sec. apart for dry food reinforcement engaged in water drinking during the intervals between bar presses. When 1.5 mg/kg dl-amphetamine was administered, bar pressing rate increased while the incidence of water drinking decreased. Drinking occurred only after the delivery of food pellets.


Amphetamine Discriminative Stimulus Water Trough Collateral Behavior Food Reinforcement Schedule 
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  1. Segal, Evalyn F. Behavioral interaction under concurrent spaced-responding, variable-interval schedules of reinforcement. J. exp. Anal Beh., 1961, 4, 263–266.CrossRefGoogle Scholar
  2. Segal, Evalyn F. Effects of dl-amphetamine under concurrent VI DRL reinforcement. J. exp. Anal. Beh., 1962, 5, 105–112.CrossRefGoogle Scholar
  3. Segal, Evalyn F., & Holloway, S. M. Timing behavior in rats with water drinking as a mediator. Science, 1963, 140, 888–889.PubMedCrossRefGoogle Scholar

Copyright information

© Psychonomic Science 1964

Authors and Affiliations

  • Evalyn F. Segal
    • 1
  • Sam A. Deadwyler
    • 1
  1. 1.San Diego State CollegeUSA

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