Effects of optic flow speed and lateral flow asymmetry on locomotion in younger and older adults: A virtual reality study

Ying Hui Chou, Robert C. Wagenaar, Elliot Saltzman, J. Erik Giphart, Daniel Young, Rosa Davidsdottir, Alice Cronin-Golomb

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

The purpose of the study is to investigate whether there are age-related differences in locomotion due to changes in presence of vision, optic flow speed, and lateral flow asymmetry using virtual reality technology. Gait kinematics and heading direction were measured using a three-dimensional motion analysis system. Although older and younger adults were affected differentially by the availability of vision, a greater dependence on optic flow information in older adults during walking was not found. Linear relations were observed between walking performance and flow speed as well as heading direction and flow asymmetry. The findings suggest that the ability to integrate optic flow information into the multimodal system for assessment of walking speed and heading direction is comparable in older and younger adults.

Original languageEnglish (US)
Pages (from-to)222-231
Number of pages10
JournalJournals of Gerontology - Series B Psychological Sciences and Social Sciences
Volume64
Issue number2
DOIs
StatePublished - Mar 2009
Externally publishedYes

Keywords

  • Heading direction
  • Interlimb coordination
  • Locomotion
  • Optic flow speed
  • Virtual reality
  • Visual dependence

ASJC Scopus subject areas

  • Health(social science)
  • Sociology and Political Science
  • Life-span and Life-course Studies

Fingerprint Dive into the research topics of 'Effects of optic flow speed and lateral flow asymmetry on locomotion in younger and older adults: A virtual reality study'. Together they form a unique fingerprint.

  • Cite this