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Related Experiment Videos

Performance in concurrent interval schedules: a systematic replication.

B Lobb, M C Davison

    Journal of the Experimental Analysis of Behavior
    |September 1, 1975
    PubMed
    Summary
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    Pigeon behavior on concurrent interval schedules showed that response rate ratios did not match reinforcement rate ratios. Time spent responding, however, approximated reinforcement rate ratios under variable schedules.

    Area of Science:

    • Behavioral psychology
    • Animal behavior
    • Operant conditioning

    Background:

    • Concurrent interval schedules are used to study choice behavior in animals.
    • Understanding how animals allocate responses and time under different reinforcement schedules is crucial for behavioral analysis.

    Purpose of the Study:

    • To investigate how pigeons allocate their responding and time between two concurrent interval schedules.
    • To compare response rate ratios with reinforcement rate ratios under fixed and variable schedules.

    Main Methods:

    • Five pigeons were trained on concurrent interval schedules with fixed or variable reinforcement timing.
    • Data collected included the number of responses and time spent responding on each schedule.

    Main Results:

    Related Experiment Videos

    • Ratios of response rates did not match reinforcement rate ratios when schedules were variable or mixed (fixed/variable).
    • Ratios of time spent responding approximated reinforcement rate ratios when both schedules were variable.
    • Time spent responding ratios did not match reinforcement rate ratios when one schedule was fixed and the other variable.

    Conclusions:

    • Time spent responding may be a more accurate measure than response rate for predicting reinforcement rates under variable schedules.
    • The predictability of reinforcement timing (fixed vs. variable) influences how animals allocate their behavior.