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Fixed-interval performances with added stimuli in monkeys.

C B FERSTER, J ZIMMERMAN

    Journal of the Experimental Analysis of Behavior
    |July 1, 1963
    PubMed
    Summary
    This summary is machine-generated.

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    Monkeys showed significantly different responding patterns on fixed-interval schedules compared to pigeons when using auditory, visual, or combined clocks. Their response rates were often very low, even with a limited-hold contingency.

    Area of Science:

    • Behavioral neuroscience
    • Comparative psychology

    Background:

    • Fixed-interval schedules are fundamental in operant conditioning research.
    • Previous studies with pigeons established response patterns under timed conditions.

    Purpose of the Study:

    • To investigate primate behavior under fixed-interval schedules using novel clock stimuli.
    • To compare monkey performance with established pigeon data.

    Main Methods:

    • Two monkeys were trained on fixed-interval schedules.
    • Performance was assessed using a visual clock (voltmeter), an auditory clock (variable frequency tone), and a combined auditory-visual clock.
    • A limited-hold contingency was employed.

    Main Results:

    • Monkeys exhibited response patterns distinct from pigeons.
    Keywords:
    CONDITIONED LEARNINGREINFORCEMENT LEARNING

    Related Experiment Videos

  • Response rates were frequently very low, even at optimal clock settings.
  • The type of clock stimulus influenced performance variability.

    • Conclusions:

    • Primate performance on fixed-interval schedules differs substantially from avian models.
    • The use of auditory, visual, or combined clocks elicits unique behavioral outputs in monkeys.
    • Further research is needed to understand the neurobiological underpinnings of these species-specific differences.