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Related Experiment Video

Updated: Jan 28, 2026

Using Unidirectional Rotations to Improve Vestibular System Asymmetry in Patients with Vestibular Dysfunction
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A virtual reality head stability test for patients with vestibular dysfunction.

Anat V Lubetzky1, Bryan D Hujsak2

  • 1Department of Physical Therapy, New York University, Steinhardt School of Culture Education and Human Development, New York, NY, USA.

Journal of Vestibular Research : Equilibrium & Orientation
|March 12, 2019
PubMed
Summary

A new virtual reality (VR) test effectively detected differences in head stability between patients with vestibular dysfunction and controls. This tool shows promise for personalizing balance training for individuals with visual-vestibular impairments.

Keywords:
Sensory integrationoculus riftpostural controlvirtual reality

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Area of Science:

  • Vestibular rehabilitation
  • Balance disorders
  • Human movement analysis

Background:

  • Visual information's role in standing balance varies significantly in patients with vestibular dysfunction.
  • There is a need for sensitive tools to assess kinematic responses to visual perturbation for personalized treatment.

Purpose of the Study:

  • To develop and test a novel virtual reality (VR) test of head stability (HST) in response to visual perturbation.
  • To evaluate the sensitivity of the VR-HST to detect differences between patients with vestibular dysfunction and healthy controls.

Main Methods:

  • A VR system (Oculus Rift) with sensors was used to track head movements in six degrees-of-freedom.
  • Participants (17 patients, 16 controls) performed balance tasks with eyes closed and while viewing a visual stimulus ('moving stars').
  • Postural sway and head oscillations (pitch, yaw, roll) were quantified using Directional Path and Root Mean Square Velocity.

Main Results:

  • Significant differences in postural sway were observed between groups under specific conditions (foam, feet together; floor, visual stimulus).
  • Patients exhibited larger head oscillations, particularly in pitch, yaw, and roll, compared to controls.
  • The VR-HST demonstrated sensitivity in distinguishing between the patient and control groups.

Conclusions:

  • The developed VR-HST is a sensitive tool for differentiating between individuals with and without vestibular dysfunction.
  • Further research with larger patient cohorts is warranted to explore the clinical utility of VR-HST in vestibular rehabilitation.