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Related Experiment Videos

Response-independent events in the behavior stream

K A Lattal1, J Abreu-Rodrigues

  • 1Department of Psychology, West Virginia University, Morgantown 26506-6040, USA.

Journal of the Experimental Analysis of Behavior
|February 12, 1998
PubMed
Summary

Introducing response-independent food into a pigeon

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Area of Science:

  • Behavioral Psychology
  • Animal Behavior
  • Operant Conditioning

Background:

  • The behavior stream metaphor aids in understanding how external events affect ongoing behavior.
  • Operant responding in pigeons is often maintained by variable-interval schedules.

Purpose of the Study:

  • To investigate the impact of response-independent food presentations on operant responding in pigeons.
  • To identify variables controlling response patterns when external food is introduced.

Main Methods:

  • Pigeons were exposed to variable-interval schedules of reinforcement.
  • Response-independent food was presented according to fixed-time or fixed-interval schedules.
  • Concurrent schedules and discriminative stimuli were used in later experiments.

Main Results:

  • Response rates decreased when response-independent food was introduced.
  • Response patterns varied (accelerated, linear) depending on schedule specifics.
  • Correlating schedules with stimuli or operanda led to consistent negatively accelerated patterns.

Conclusions:

  • Both reinforcement variables and discriminative stimuli influence how response-independent events affect behavior streams.
  • The physical separation and ratio of schedules are critical factors.
  • Understanding these dynamics is key to predicting behavioral changes.

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