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Related Experiment Videos

Concurrent performances: rate constancies without changeover delays.

A C Catania

    Journal of the Experimental Analysis of Behavior
    |May 1, 1976
    PubMed
    Summary

    Pigeons learned to associate key pecks with food reinforcement. Alternating between single-key and dual-key schedules prevented pigeons from developing superstitious behaviors.

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    Area of Science:

    • Behavioral psychology
    • Animal behavior studies

    Background:

    • Pigeons (Columba livia) are frequently used in operant conditioning studies.
    • Understanding response allocation in concurrent schedules is crucial for behavioral theory.

    Purpose of the Study:

    • To investigate response allocation in pigeons under concurrent and single-key reinforcement schedules.
    • To determine if alternating schedules prevent superstitious behavior development.

    Main Methods:

    • Pigeons were trained on variable-interval schedules of food reinforcement for key pecks.
    • A four-component cycle alternated between reinforcement for both keys, left key only, both keys, and right key only.
    • Extinction conditions were introduced to assess response independence.

    Main Results:

    • Initially, single-key reinforcement yielded higher response rates than concurrent reinforcement.
    • Response rates became invariant to the other key's schedule with continued sessions.
    • Responding decreased more during extinction when the other key was reinforced.

    Conclusions:

    • Pigeon key pecking behavior adapted to schedule changes.
    • Alternating concurrent and single-key schedules effectively prevented the development of superstitious behaviors.

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