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A fixed interval schedule in which the interval is initiated by a response.

F MECHNER, L GUEVREKIAN, V MECHNER

    Journal of the Experimental Analysis of Behavior
    |July 1, 1963
    PubMed
    Summary
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    This study analyzed animal behavior on a fixed interval schedule, revealing distinct pause patterns and response rates. Findings show response probability increases throughout the interval, with specific pause durations observed.

    Area of Science:

    • Behavioral Psychology
    • Animal Behavior Studies
    • Operant Conditioning

    Background:

    • Fixed interval schedules are fundamental in operant conditioning.
    • Understanding response patterns is key to analyzing reinforcement schedules.
    • Differentiating post-reinforcement and fixed interval pauses offers insight into behavior.

    Purpose of the Study:

    • To analyze animal performance on a novel fixed interval schedule.
    • To separately measure post-reinforcement and fixed interval pauses.
    • To investigate response rates and pause durations in rats and monkeys.

    Main Methods:

    • Utilized a two-bar Skinner box with a modified fixed interval schedule.
    • Trained twelve rats and three monkeys on the schedule.
    Keywords:
    CONDITIONED LEARNINGREINFORCEMENT LEARNING

    Related Experiment Videos

  • Analyzed response frequencies, rates, pause lengths, and inter-response times.

    • Main Results:

    • Response probability (R(B)) increases across the fixed interval, with a sharp rise at the first R(B).
    • Frequency distributions of R(A)-R(B) pauses showed three distinct behavioral types.
    • The primary R(A)-R(B) interval length mode typically fell just under the fixed interval requirement.

    Conclusions:

    • The probability of a reinforced response (R(B)) escalates predictably throughout the fixed interval.
    • Distinct behavioral patterns in pause durations were identified, suggesting discrete response strategies.
    • The schedule effectively separated and allowed measurement of different pause components in animal responding.