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Related Concept Videos

Three Developmental Domains01:29

Three Developmental Domains

Human development is typically examined across three main domains: physical, cognitive, and socio-emotional. These domains represent the significant areas of change and continuity throughout the lifespan, from infancy to late adulthood.
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Piaget's Stage 1 of Cognitive Development

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Piaget's Stage 3 of Cognitive Development01:17

Piaget's Stage 3 of Cognitive Development

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The Nativist Approach01:21

The Nativist Approach

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Language Development01:22

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Updated: Jun 29, 2026

Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms
07:31

Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms

Published on: February 8, 2019

Development of three-dimensional object completion in infancy.

Kasey C Soska1, Scott P Johnson

  • 1Department of Psychology, New York University, New York, NY 10003, USA. kasey.soska@nyu.edu

Child Development
|October 2, 2008
PubMed
Summary
This summary is machine-generated.

Six-month-old infants can perceive three-dimensional (3D) objects as whole, even with limited views. This developmental milestone in 3D object completion suggests early cognitive abilities in infants.

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A View of Their Own: Capturing the Egocentric View of Infants and Toddlers with Head-Mounted Cameras
03:56

A View of Their Own: Capturing the Egocentric View of Infants and Toddlers with Head-Mounted Cameras

Published on: October 5, 2018

Related Experiment Videos

Last Updated: Jun 29, 2026

Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms
07:31

Defining the Role Of Language in Infants' Object Categorization with Eye-tracking Paradigms

Published on: February 8, 2019

A View of Their Own: Capturing the Egocentric View of Infants and Toddlers with Head-Mounted Cameras
03:56

A View of Their Own: Capturing the Egocentric View of Infants and Toddlers with Head-Mounted Cameras

Published on: October 5, 2018

Area of Science:

  • Cognitive Development
  • Infant Perception
  • Visual Processing

Background:

  • Understanding how infants perceive and represent objects is crucial for cognitive development research.
  • Limited visual information poses a challenge for object recognition and completion.

Purpose of the Study:

  • To investigate the developmental trajectory of three-dimensional (3D) object completion in human infants.
  • To determine the age at which infants can infer complete object forms from partial visual input.

Main Methods:

  • Habituation paradigm using a computer-generated wedge stimulus with a limited 15-degree view.
  • Testing with two 360-degree rotating displays: a complete solid volume and an incomplete hollow form.
  • Comparing visual preferences of 4-month-old and 6-month-old infants, including a control group.

Main Results:

  • Four-month-old infants showed no significant preference between the complete and incomplete object displays.
  • Six-month-old infants demonstrated a reliable novelty preference for the incomplete object display.
  • Control infants, not habituated to the wedge, showed no display preference.

Conclusions:

  • By six months of age, infants appear to possess the ability to mentally complete partially occluded three-dimensional objects.
  • This suggests the development of sophisticated 3D object representation in early infancy.
  • The findings provide insights into the developmental mechanisms underlying object completion and spatial cognition.