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Related Experiment Videos

The interaction between stimulus and reinforcer control on remembering.

D C McCarthy1, M Davison

  • 1Department of Psychology, University of Auckland, New Zealand.

Journal of the Experimental Analysis of Behavior
|July 1, 1991
PubMed
Summary
This summary is machine-generated.

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Pigeons learned to peck keys based on light brightness. Longer delays between seeing the light and choosing decreased accuracy more than delays before getting food, impacting memory control.

Area of Science:

  • Behavioral Psychology
  • Animal Cognition
  • Learning and Memory

Background:

  • Symbolic matching-to-sample tasks investigate how animals learn associations.
  • Understanding memory and choice behavior is crucial in behavioral science.

Purpose of the Study:

  • To examine how different delay intervals affect stimulus discriminability and choice accuracy in pigeons.
  • To investigate the interaction between sample stimuli and reinforcers in memory control.

Main Methods:

  • Pigeons performed a matching-to-sample task with varying delays between stimulus presentation and choice availability.
  • Delays between correct choice and reinforcer delivery were also manipulated.
  • Relative reinforcer rates were varied to assess behavioral sensitivity.

Related Experiment Videos

Main Results:

  • Increasing both stimulus-choice and choice-reinforcer delays reduced stimulus discriminability.
  • Longer stimulus-choice delays caused a greater decrease in choice accuracy compared to choice-reinforcer delays.
  • Behavioral sensitivity to reinforcer distribution decreased as discriminability diminished.

Conclusions:

  • The findings support the generalized matching law, indicating an interaction between sample stimuli and reinforcers in memory.
  • Stimulus-choice delays have a more pronounced effect on choice accuracy than choice-reinforcer delays.
  • This study provides insights into the mechanisms of remembering and choice behavior in pigeons.