Optical Flow, Perturbation Velocities and Postural Response in Virtual Reality

Markus Santoso, David Phillips

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The purpose of this study was to investigate the effect of optical flow velocity in a virtual reality (VR) environment on user's postural control. We hypothesized that the velocity of the optical flow will perturb user's balance indicated by an increase center of pressure (COP) distance travelled and speed. Seventeen young, healthy participants were tested in one-foot support stances. Our study showed the visual perturbations increased COP distance in one-foot support and the slowest perturbation velocity induced the highest response. For VR communities, developers could use this information to raise their awareness that any sudden shift in the virtual environment at any velocity could reduce a user's postural stability and place them at risk of falling, particularly at slower perturbation velocities.

Original languageEnglish
Title of host publicationProceedings - 2020 IEEE Conference on Virtual Reality and 3D User Interfaces, VRW 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages789-790
Number of pages2
ISBN (Electronic)9781728165325
DOIs
StatePublished - Mar 2020
Event2020 IEEE Conference on Virtual Reality and 3D User Interfaces, VRW 2020 - Atlanta, United States
Duration: 22 Mar 202026 Mar 2020

Publication series

NameProceedings - 2020 IEEE Conference on Virtual Reality and 3D User Interfaces, VRW 2020

Conference

Conference2020 IEEE Conference on Virtual Reality and 3D User Interfaces, VRW 2020
CountryUnited States
CityAtlanta
Period22/03/2026/03/20

Keywords

  • balance
  • center of pressure
  • optical flow
  • virtual reality
  • visual perturbation

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