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Related Experiment Videos

Free-operant forgetting: Delayed stimulus control of multiple-schedule performance.

K G White, S Redman

    Journal of the Experimental Analysis of Behavior
    |January 1, 1983
    PubMed
    Summary

    Pigeons showed stronger control by reinforcement history when specific visual cues were present. This indicates that discriminative stimuli enhance stimulus control in pigeons under complex schedules.

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    Area of Science:

    • Behavioral neuroscience
    • Animal behavior

    Background:

    • Pigeons (Columba livia) are widely used models for studying associative learning.
    • Understanding stimulus control is crucial for dissecting decision-making processes.

    Purpose of the Study:

    • To investigate how discriminative stimuli influence response allocation under multiple schedules.
    • To quantify the degree of delayed stimulus control by visual cues.

    Main Methods:

    • Pigeons were trained on multiple variable-interval schedules with distinct visual stimuli (red, green, white).
    • Response and reinforcement ratios were measured under different stimulus conditions.
    • Power functions were used to analyze the relationship between response and reinforcement ratios.

    Main Results:

    Related Experiment Videos

    • The exponent values, reflecting sensitivity to reinforcement, were significantly higher when discriminative stimuli (red or green) were present compared to the neutral white stimulus.
    • This suggests that pigeons' behavior was more strongly guided by reinforcement history under specific stimulus control.

    Conclusions:

    • Discriminative stimuli enhance the sensitivity of response allocation to reinforcement history in pigeons.
    • This provides a quantitative index for assessing delayed stimulus control in complex behavioral environments.