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Related Concept Videos

Gestalt Principles of Perception01:21

Gestalt Principles of Perception

Gestalt principles provide a framework for understanding how humans perceive objects as unified wholes within their context. These principles are essential in explaining the cognitive processes that make sense of complex visual stimuli by organizing them into coherent groups. One fundamental principle is proximity, which posits that objects located close to each other are perceived as a collective group. For instance, when dots are positioned near one another, the visual system interprets them...
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Sensory Perception: Organization of the Somatosensory System

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Piaget's Stage 1 of Cognitive Development01:14

Piaget's Stage 1 of Cognitive Development

The sensorimotor stage, the initial phase of Jean Piaget's theory of cognitive development, spans the first two years of a child's life. During this period, infants actively engage with their surroundings, building cognitive awareness through direct interaction with the world. This interaction is primarily based on sensory perception and motor actions, allowing infants to gradually understand basic physical properties and predict how objects interact within their environment.
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Motor and Sensory Areas of the Cortex01:14

Motor and Sensory Areas of the Cortex

The cerebral cortex, the brain's outermost layer, is pivotal in processing complex cognitive tasks, emotions, and various sensory inputs and executing voluntary motor activities. This intricate structure is divided into three primary functional areas: the motor areas, sensory areas, and association areas.
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Perception01:28

Perception

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Related Experiment Video

Updated: Jul 5, 2026

Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization
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Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization

Published on: April 19, 2017

Perceptual organization based on illusory regions in infancy.

Angela Hayden1, Ramesh S Bhatt, Paul C Quinn

  • 1University of Kentucky, Lexington, Kentucky 40506-0044, USA.

Psychonomic Bulletin & Review
|May 21, 2008
PubMed
Summary

Infants as young as 3-4 months can group visual elements using inferred illusory regions. This early perceptual organization extends to novel regions, demonstrating a fundamental aspect of visual development.

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Area of Science:

  • Cognitive psychology
  • Developmental psychology
  • Visual perception

Background:

  • Prior research shows adults and infants use enclosed regions for visual grouping.
  • It remains unclear if infants can use inferred regions, such as those from illusory contours, for grouping.

Purpose of the Study:

  • To investigate if 3- to 4-month-old infants utilize illusory regions for grouping elements.
  • To determine if this grouping ability generalizes to novel regions.

Main Methods:

  • Infants were habituated to shape pairs within illusory vertical or horizontal regions.
  • Following habituation, infants' discrimination between elements previously sharing a region versus those in different regions was tested in novel regions.
  • A control group experienced similar stimuli without illusory regions.

Main Results:

  • Infants successfully discriminated between within-region and between-region element pairs in novel regions.
  • A control group lacking illusory regions failed to make this discrimination.
  • This indicates infants can use illusory regions for grouping.

Conclusions:

  • Illusory regions serve as a basis for perceptual grouping in 3- to 4-month-old infants.
  • Early visual development includes the ability to group elements based on ecologically relevant illusory contours.
  • Infants demonstrate generalization of grouping based on illusory regions to new contexts.