Psychonomic Science

, Volume 2, Issue 1–12, pp 203–204 | Cite as

Determinants of polydipsia in rats: II. DRL extinction

  • Evalyn F. Segal
  • Sam A. Deadwyler
Animal Motivation Thirst & Drinking


Three rats were trained on DRL 30 sec. for food. All developed polydipsia. Two DRL extinction sessions were run, one with the dispenser click following each correctly-spaced response, one without it. Drinking continued through extinction sessions, at lower frequency. Two of the rats drank more in the extinction session with the click than in the one without it.


Water Bottle Extinction Session Control Session Conditioned Reinforcer Response Spacing 
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  1. Segal, Evalyn F., & Deadwyler, S. A. Amphetamine differentially affects spaced bar pressing and collateral water drinking. Psychon. Sci., 1964, 1, 349–350.CrossRefGoogle Scholar
  2. Segal, Evalyn F., & Oden, D. L. Determinants of polydipsia in rats: A reply to Stein. I. Emptying the water bottle. Psychon. Sci., 1965, 201-202.Google Scholar
  3. Stein, L. Excessive drinking in the rat: Superstition or thirst? J. comp. physiol. Psychol., 1964, 58, 237–242.PubMedCrossRefGoogle Scholar

Copyright information

© Psychonomic Science 1965

Authors and Affiliations

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

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