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Related Experiment Videos

Perceptual completion of surfaces in infancy.

N Termine1, T Hrynick, R Kestenbaum

  • 1University of Pennsylvania.

Journal of Experimental Psychology. Human Perception and Performance
|November 1, 1987
PubMed
Summary

Four-month-old infants perceive background surfaces as continuous when hidden. However, they do not perceive foreground surfaces as continuous when occluded, indicating context-dependent surface perception in early development.

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Area of Science:

  • Developmental Psychology
  • Cognitive Science
  • Visual Perception

Background:

  • Infant visual perception is crucial for understanding cognitive development.
  • Surface continuity perception is fundamental to scene understanding.
  • Distinguishing figure from ground influences object perception.

Purpose of the Study:

  • To investigate whether 4-month-old infants perceive occluded surfaces as continuous.
  • To determine if surface continuity perception depends on whether the surface is a background or foreground element.
  • To explore the role of figure-ground segregation in infant surface perception.

Main Methods:

  • Two experiments utilized familiarization and habituation paradigms with partly occluded background surfaces.
  • Infants were tested on their looking time towards continuous versus interrupted nonoccluded surfaces.

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  • A third experiment habituated infants to a partly hidden foreground surface with visible edges.

    • Main Results:

    • Infants looked longer at interrupted surfaces compared to continuous ones, suggesting perception of background continuity.
    • Infants showed no evidence of perceiving foreground surfaces as continuous behind an occluder.
    • Perception of surface continuity appears dependent on the surface's role as a background.

    Conclusions:

    • Four-month-old infants perceive background surfaces as continuous even when partly occluded.
    • Foreground surfaces are not perceived as continuous behind occluders by young infants.
    • Infant surface continuity perception is influenced by figure-ground organization and scene context.