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Related Experiment Videos

Molar function depends on molecular structure of behavior

C P Shimp1, T Fremouw, L M Ingebritsen

  • 1Department of Psychology, University of Utah, Salt Lake City 84112.

Journal of Experimental Psychology. Animal Behavior Processes
|January 1, 1994
PubMed
Summary
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Pigeons demonstrated adaptive behavior by matching their choices to reinforcement schedules. This study highlights how distinguishing between coherent and incoherent responses is crucial for understanding molar preference in complex choice patterns.

Area of Science:

  • Behavioral neuroscience
  • Animal cognition
  • Operant conditioning

Background:

  • Pigeons were studied to understand choice behavior and reinforcement schedules.
  • Previous research established the matching law in simpler choice scenarios.

Purpose of the Study:

  • To investigate if pigeons' choice behavior conforms to the matching law in a complex, multi-stage task.
  • To examine the role of different waiting times and reinforcement frequencies on choice patterns.
  • To determine if awareness plays a role in adaptive choice behavior.

Main Methods:

  • Pigeons made sequential choices involving side keys and a center key, with varying inter-response times.
  • Intermittent reinforcement with food was provided based on specific sequences of choices (left-left or right-right).

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  • The durations of required waiting times and the reinforcement probability for shorter waits were manipulated.

    • Main Results:

    • Molar preference, when defined by coherent responses aligning with reinforcement contingencies, matched the predicted adaptive level.
    • Molar preference, when defined by incoherent responses, did not conform to the matching law.
    • The findings suggest that the molar matching law generalizes to complex response structures when response coherence is considered.

    Conclusions:

    • The study supports the generalization of the molar matching law to complex behavioral sequences in pigeons.
    • Distinguishing between coherent and incoherent responses is essential for accurate analysis of choice behavior.
    • The results are consistent with the hypothesis that awareness can enhance adaptive behavioral responses.