Psychonomic Science

, Volume 2, Issue 1–12, pp 29–30 | Cite as

The development of water drinking on a dry-food free-reinforcement schedule

  • Evalyn F. Segal
Animal Motivation Thirst & Drinking


Rats were given a food pellet every 60 sec., not contingent on operant responding. All rats developed over days a pattern of prolonged water drinking following delivery of food pellets. One of the rats, whose operant-level lever pressing was recorded concurrently with licking, developed a complex pattern of drinking and bar pressing which persisted even after a 5-sec. delay of reinforcement for bar presses was introduced.


Food Pellet Reinforcement Schedule Modal Duration Adventitious Reinforcement Pellet Delivery 
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Copyright information

© Psychonomic Science 1965

Authors and Affiliations

  • Evalyn F. Segal
    • 1
  1. 1.San Diego State CollegeUSA

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