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Related Experiment Videos

Changeover delay effects on topographically tagged discriminative behavior

K G White

    Journal of the Experimental Analysis of Behavior
    |March 1, 1982
    PubMed
    Summary

    Pigeons reduced signal-key responses when delays increased, showing these behaviors were maintained by accidental reinforcement of response chains. This highlights the impact of reinforcement schedules on operant behavior in pigeons.

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    Area of Science:

    • Behavioral psychology
    • Animal behavior studies
    • Operant conditioning research

    Background:

    • Operant conditioning involves reinforcement and punishment to shape behavior.
    • Extinction schedules are used to study response maintenance and decline.
    • Discriminative stimuli signal the availability of reinforcement.

    Purpose of the Study:

    • To investigate the role of changeover delays in a multiple variable-interval extinction schedule.
    • To examine how signal-key response rates are affected by reinforcement contingencies.
    • To determine if adventitious reinforcement maintains signal-key responding.

    Main Methods:

    • Pigeons were exposed to a multiple variable-interval extinction schedule.
    • Discriminative stimuli were presented on a signal key.
    • Changeover delays of 0, 1, 2, and 4 seconds were manipulated.
    • Operant key responses were differentially reinforced.

    Main Results:

    • Signal-key response rates systematically decreased as changeover delay duration increased.
    • This reduction suggests that signal-key responding was not solely controlled by the discriminative stimuli.
    • Evidence points to reinforcement of adventitious response chains as a maintaining factor.

    Conclusions:

    • Changeover delays significantly influence signal-key responding in pigeons.
    • Adventitious reinforcement plays a crucial role in maintaining behavior under these schedules.
    • Findings contribute to understanding response allocation and reinforcement mechanisms.

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