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Related Experiment Videos

When does grouping happen?

Stephen E Palmer1, Joseph L Brooks, Rolf Nelson

  • 1Department of Psychology, University of California, Berkeley, CA 94720, USA. palmer@cogsci.berkeley.edu

Acta Psychologica
|December 13, 2003
PubMed
Summary
This summary is machine-generated.

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Perceptual grouping influences visual organization at multiple levels, challenging the view that it

Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Vision Science

Background:

  • Classical theories view perceptual grouping as an early, 2D image-based process.
  • Recent research suggests grouping is influenced by higher-level perceptual phenomena.

Purpose of the Study:

  • To identify the operational level(s) of perceptual grouping factors.
  • To investigate the interplay between grouping and perceptual constancy.

Main Methods:

  • Review of recent experimental findings on perceptual grouping.
  • Analysis of phenomena like binocular depth, lightness constancy, amodal completion, and illusory contours.

Main Results:

  • Grouping is influenced by perceptual constancy, indicating operation at the phenomenal perception level.

Related Experiment Videos

  • Grouping also affects perceptual constancy, suggesting early, pre-constancy operation.

    • Conclusions:

    • Perceptual grouping is not a single, localized stage.
    • Grouping is a ubiquitous process operating across multiple levels of visual representation.