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Related Experiment Videos

Time-allocation, matching, and contrast.

C P Shimp, L Hawkes

    Journal of the Experimental Analysis of Behavior
    |July 1, 1974
    PubMed
    Summary
    This summary is machine-generated.

    Pigeons on a variable-interval schedule demonstrated concurrent reinforcement interaction, where response rates adjusted based on reinforcement availability. This behavior parallels choice-making, suggesting a unified principle in reinforcement control.

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    Area of Science:

    • Behavioral Psychology
    • Animal Behavior

    Background:

    • Operant conditioning involves schedules of reinforcement influencing response rates.
    • Pigeons are commonly used models for studying basic behavioral principles.

    Purpose of the Study:

    • To investigate concurrent reinforcement interaction in pigeons under a variable-interval schedule.
    • To explore the relationship between response rates and reinforcement schedules on a single operandum.

    Main Methods:

    • Pigeons were trained on a single operandum using a variable-interval schedule with two distinct response rates.
    • Reinforcement rates for one component were constant, while the other varied.
    • Response rates and time allocation were measured.

    Main Results:

    Related Experiment Videos

    • The constant response rate varied inversely with the reinforcement rate of the variable component, demonstrating contrast.
    • Time allocation to each component was influenced by total reinforcement rate and percentage of reinforcements.
    • A parallel was observed between single operandum responding and choice behavior.

    Conclusions:

    • Concurrent reinforcement interaction, or contrast, is a key factor in controlling response rates.
    • Time-allocation functions explain the mean response rate under complex schedules.
    • Behavioral principles observed in single-operandum tasks generalize to choice paradigms.