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Related Concept Videos

Visual Agnosia01:12

Visual Agnosia

Visual agnosia is a condition characterized by the inability to recognize visually presented objects despite having normal vision. For instance, a person with visual agnosia can describe the shape and color of an object but cannot identify or name it. This impairment does not affect their visual field, acuity, color vision, brightness discrimination, language, or memory. An example of this condition in a social setting is someone at a dinner party asking for "that silver thing with a round end"...
Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

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.
Perceptual Constancy01:12

Perceptual Constancy

Perceptual constancy is the ability to recognize that objects remain consistent and unchanged even when their appearance varies due to changes in sensory input. There are four main types of perceptual constancy: size constancy, shape constancy, color constancy, and brightness constancy.
Size constancy is the recognition that an object remains the same size, even when its image on the retina changes. For instance, a bus is perceived to be large enough to carry people, even if it looks tiny from...

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Related Experiment Video

Updated: Jun 3, 2026

Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection
07:04

Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection

Published on: March 10, 2021

Time perception in spatial neglect: a distorted representation?

Marco Calabria1, Sophie Jacquin-Courtois, Antonio Miozzo

  • 1IRCCS Centro San Giovanni di Dio Fatebenefratelli, Via PILASTRONI, 4; 25125 Brescia, Italy. calabria.marc@gmail.com

Neuropsychology
|March 9, 2011
PubMed
Summary
This summary is machine-generated.

Spatial neglect distorts time perception. Patients with neglect overestimate time durations, suggesting shared neural networks for space and time processing in the right parietal cortex.

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Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
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Related Experiment Videos

Last Updated: Jun 3, 2026

Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection
07:04

Virtual Reality Tools for Assessing Unilateral Spatial Neglect: A Novel Opportunity for Data Collection

Published on: March 10, 2021

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments
13:00

Measuring Attention and Visual Processing Speed by Model-based Analysis of Temporal-order Judgments

Published on: January 23, 2017

Area of Science:

  • Neuroscience
  • Cognitive Psychology

Background:

  • The right parietal cortex is hypothesized to support shared metrics and neural networks for time, space, and number representation.
  • Previous studies indicate that spatial neglect, a condition affecting right-brain damaged patients, distorts mental number line representations.

Purpose of the Study:

  • To investigate the relationship between time perception and spatial configuration in patients with neglect.
  • To explore how spatial neglect impacts the representation of time.

Main Methods:

  • A time discrimination task was administered to 14 right-brain damaged patients (6 with neglect, 8 without neglect) and 8 healthy controls.
  • Participants compared the duration of a test tone against a standard tone (700 ms or 1,700 ms), with differences of 100, 200, or 300 ms.

Main Results:

  • Patients with spatial neglect performed significantly worse on the time discrimination task compared to patients without neglect and healthy controls.
  • This poorer performance was observed regardless of the standard tone duration.

Conclusions:

  • The findings support the hypothesis of a shared cortical network for mental representations of space and time.
  • Spatial neglect appears to distort time representation, leading to an overestimation of time durations.