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Functional representations common to visual perception and imagination.

P Podgorny, R N Shepard

    Journal of Experimental Psychology. Human Perception and Performance
    |February 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

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    Cognitive processing of visual patterns is similar whether they are seen, remembered, or imagined. Reaction times for visual probes depended on figure complexity and probe location, supporting a model of independent barlike units in mental representations.

    Area of Science:

    • Cognitive Psychology
    • Visual Perception
    • Mental Imagery

    Background:

    • Understanding the nature of mental representations is crucial in cognitive psychology.
    • Previous research has explored visual perception and memory recall, but direct comparisons with mental imagery remain an area of interest.

    Purpose of the Study:

    • To investigate if the cognitive processes involved in identifying visual patterns differ when the patterns are visually presented, remembered, or mentally generated.
    • To compare the speed and accuracy of responses to visual probes based on the mode of pattern presentation.

    Main Methods:

    • Participants determined if probe dots fell on a figure presented visually, from memory, or from a verbal code.
    • Reaction times and accuracy were measured for on-figure and off-figure probes.

    Related Experiment Videos

  • Analysis focused on functional dependencies of reaction times on structural variables like figure complexity and probe distance.

    • Main Results:

    • Reaction times and accuracy were comparable across visual, remembered, and imagined conditions.
    • Reaction times were faster for on-figure than off-figure probes.
    • Simpler figures and greater distances for off-figure probes led to faster responses.
    • On-figure probes with more dots or at intersections also resulted in faster reaction times.

    Conclusions:

    • The findings suggest that perceptual and imaginal representations of visual forms share underlying processing mechanisms.
    • A model where mental representations contain independent barlike units is supported by the data.
    • Cognitive processing of visual information is robust across different modes of representation.