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Behavioral economics and within-session changes in responding.

F K McSweeney1, S Swindell

  • 1Department of Psychology, Washington State University, Pullman 99164-4820, USA. fkmcs@mail.wsu.edu

Journal of the Experimental Analysis of Behavior
|December 22, 1999
PubMed
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Pigeons and rats show changes in behavior within experimental sessions, especially under high reinforcement rates. Economic demand for food decreases during sessions, suggesting shorter sessions are better for studying demand.

Area of Science:

  • Behavioral Economics
  • Animal Behavior

Background:

  • Responding in animals often changes systematically within experimental sessions.
  • Understanding within-session changes is crucial for interpreting behavioral data.

Purpose of the Study:

  • To investigate within-session changes in animal responding under fixed-ratio schedules.
  • To analyze the economic demand for food in pigeons and rats during experimental sessions.

Main Methods:

  • Pigeons and rats were trained on fixed-ratio schedules (5-120 responses).
  • Behavioral responding and economic demand functions were analyzed within sessions.
  • Intensity and elasticity of demand were calculated.

Main Results:

  • Responding changed systematically within sessions, with larger, less symmetrical changes at higher reinforcement rates.

Related Experiment Videos

  • Economic demand intensity and elasticity decreased within sessions.
  • Within-session demand changes align with behavioral economic theories.

    • Conclusions:

    • Variables influencing within-session response changes are consistent across different schedules.
    • Shorter experimental sessions may be optimal for studying economic demand.
    • Demand intensity, but not always elasticity, changes within sessions, supporting behavioral economic models.