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Related Experiment Video

Updated: Jun 5, 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

Spatial hemineglect in humans.

G Vallar1

  • 1Dipartimento di Psicologia, Universita di Roma `La Sapienza' Via dei Marsi 78, 00185 Roma, Italy.

Trends in Cognitive Sciences
|January 14, 2011
PubMed
Summary
This summary is machine-generated.

Spatial hemineglect involves disorders in spatial cognition, affecting awareness and exploration of space contralateral to brain lesions. Sensory stimulation may modulate these symptoms, influencing spatial representation and subjective experience.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Neurology

Background:

  • Spatial hemineglect is a disorder of spatial cognition affecting specific sectors of space relative to a coordinate system.
  • Lesions in the posterior-inferior parietal and premotor cortex, often in the right hemisphere, are associated with hemineglect.
  • Patients may exhibit failure to explore or be aware of contralateral space and body parts, alongside positive symptoms like avoidance.

Purpose of the Study:

  • To collectively define and describe the multifaceted nature of spatial hemineglect.
  • To explore the underlying neural correlates and organizational principles of spatial representation and attention.
  • To investigate the role of sensory stimulation in modulating hemineglect manifestations.

Main Methods:

  • Clinical observation and characterization of patients with cerebral lesions.
  • Analysis of dissociative forms of hemineglect to understand its varied manifestations.
  • Investigating the effects of sensory stimulation on visuo-motor processes and spatial awareness.

Main Results:

  • Spatial hemineglect presents with both negative signs (impaired exploration/awareness) and positive signs (avoidance, delusions).
  • The disorder's varied forms suggest a complex, multifaceted organization of spatial representation and attention.
  • Sensory stimulation modulates hemineglect symptoms similarly to visuo-motor processes in healthy individuals.

Conclusions:

  • Spatial hemineglect arises from lesions in specific brain regions, impacting spatial cognition.
  • The multifaceted nature of hemineglect points to complex neural networks underlying spatial representation and attention.
  • Sensory modulation may play a role in updating spatial representations and contributing to subjective spatial experience.