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Related Experiment Videos

Visual attention in retarded adults: combining stimuli which control incompatible behavior

N H Huguenin, P E Touchette

    Journal of the Experimental Analysis of Behavior
    |January 1, 1980
    PubMed
    Summary

    Severely intellectually disabled men learned to distinguish colors and line tilts. When these were combined, one element often dominated, indicating selective attention, especially when prior learning conflicted with new tasks.

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    Area of Science:

    • Cognitive Psychology
    • Behavioral Science
    • Neuroscience

    Background:

    • Understanding how individuals with intellectual disabilities process complex stimuli is crucial for developing effective learning strategies.
    • Prior research indicates that attentional mechanisms play a significant role in discrimination learning.

    Purpose of the Study:

    • To investigate selective attention in severely intellectually disabled individuals using compound stimuli with conflicting reinforcement histories.
    • To determine how prior learning influences the processing of compound visual stimuli.

    Main Methods:

    • Eight severely intellectually disabled young men were trained on color and line-tilt discrimination tasks.
    • Conflict-compound stimuli were created by reversing the reinforcement history of one element.

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  • Compatible-compound stimuli were created where reinforcement histories aligned.

    • Main Results:

    • In conflict compounds, the element with the unchanged reinforcement history consistently controlled responses.
    • The element with the reversed reinforcement history was often ignored or controlled by its original training.
    • Conflict compounds led to selective attention, while compatible compounds did not.

    Conclusions:

    • Individuals with severe intellectual disabilities demonstrate selective attention when presented with conflicting compound stimuli.
    • Prior reinforcement history significantly influences which element of a compound stimulus is attended to.
    • These findings have implications for designing educational and therapeutic interventions for this population.