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Related Concept Videos

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Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
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Related Experiment Video

Updated: Jul 2, 2026

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

The egocentric reference for visual exploration and orientation.

Daniele Nico1, Elena Daprati

  • 1Dipartimento di Psicologia, Università "La Sapienza", via dei Marsi 78, 00185 Rome, Italy. daniele.nico@uniroma1.it

Brain and Cognition
|August 30, 2008
PubMed
Summary
This summary is machine-generated.

This study proposes two distinct egocentric mechanisms for spatial cognition, challenging the single-perturbation view. These separate systems, for immediate viewpoint and mental representation, have implications for understanding cognitive and social skills.

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Related Experiment Videos

Last Updated: Jul 2, 2026

A View of Their Own: Capturing the Egocentric View of Infants and Toddlers with Head-Mounted Cameras
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Published on: October 5, 2018

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Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior
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Published on: April 16, 2014

Area of Science:

  • Cognitive Neuroscience
  • Spatial Cognition
  • Human Navigation

Background:

  • The egocentric reference system is crucial for perceiving and navigating the environment.
  • Clinical observations show diverse deficits in spatial awareness, often attributed to a single underlying issue.
  • Current models struggle to reconcile perceptual and representational spatial deficits.

Purpose of the Study:

  • To propose a novel framework distinguishing two separate egocentric mechanisms.
  • To challenge the unified view of egocentric reference system perturbations.
  • To explore the functional and developmental independence of these mechanisms.

Main Methods:

  • Review of clinical dissociations in egocentric reference system function.
  • Analysis of recent navigation studies differentiating active exploration from internal map-based movement.
  • Theoretical modeling of distinct egocentric mechanisms.

Main Results:

  • Evidence suggests separate cognitive mechanisms for maintaining egocentric reference during visual exploration versus internal navigation.
  • These mechanisms appear to have distinct developmental trajectories and neural underpinnings.
  • Healthy adults utilize these mechanisms independently based on task demands and cognitive style.

Conclusions:

  • A dual-mechanism model offers a more nuanced explanation for egocentric reference system function and dysfunction.
  • The distinction between immediate viewpoint construction and representational perspective extraction is functionally significant.
  • Understanding these separate systems has implications for spatial cognition, social skills, and neurological rehabilitation.