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Perception of occlusion by young infants: Must the occlusion event be congruent with the occluder?

J Gavin Bremner1, Alan M Slater2, Uschi C Mason1

  • 1Lancaster University, United Kingdom.

Infant Behavior & Development
|August 5, 2016
PubMed

Insights

Four-month-old infants need spatially congruent cues to perceive object continuity during occlusion. Misaligned visual cues prevent infants from tracking an object

Area of Science:

  • Developmental Psychology
  • Cognitive Science
  • Infant Perception

Background:

  • Infants perceive object continuity through occlusion, but require specific visual cues.
  • The role of spatial congruence in occlusion perception is not fully understood.

Purpose of the Study:

  • To investigate how spatial relationships between occlusion events and occluder edges affect infant perception.
  • To determine if infants require congruent visual cues for veridical occlusion perception.

Main Methods:

  • Two experiments were conducted with 60 four-month-old infants.
  • Participants observed occlusion events where deletion and accretion cues were either spatially displaced or misaligned with occluder edges.

Main Results:

  • Infants did not perceive object trajectory continuity when occlusion cues were spatially displaced.
  • Misaligned deletion and accretion events relative to occluder edges also disrupted continuity perception.

Conclusions:

  • Congruence between occlusion events and occluder edges is crucial for four-month-olds' perception of object continuity.
  • These findings inform theories on the development of occlusion perception and object persistence in infants.

Keywords:
AccretionDeletionOcclusionTrajectory continuity

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