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Improving left hemispatial neglect using virtual reality.

U Castiello1, D Lusher, C Burton

  • 1Department of Psychology, Royal Holloway, University of London, Egham, Surrey, UK. u.castiello@rhul.ac.uk

Neurology
|June 9, 2004
PubMed
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Virtual reality enabled hemispatial neglect patients to integrate neglected space with preserved space. This study shows tool use is not essential for reopening neglected visual fields.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Rehabilitation Science

Background:

  • Hemispatial neglect dissociates space into near peripersonal and far extrapersonal.
  • Tool use, like wielding a stick, can modify neglect by extending body space and remapping far space as near.

Purpose of the Study:

  • To investigate if spatial remapping in neglect generalizes beyond near/far space to affected/nonaffected space.
  • To determine if tool use is a prerequisite for this spatial remapping.

Main Methods:

  • Six hemispatial neglect patients used virtual reality to interact with virtual objects.
  • Patients simultaneously controlled a virtual hand with their real hand for reaching and grasping tasks.

Main Results:

Related Experiment Videos

  • Following adaptation, patients with hemispatial neglect processed visual stimuli in neglected space similarly to stimuli in unaffected space.
  • This suggests a successful integration of previously neglected visual fields.

    • Conclusions:

    • Spatial remapping can bridge affected and nonaffected space in hemispatial neglect.
    • The use of tools is not a necessary condition for restoring neglected space.