Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Visual-vestibular interaction during OVAR in the elderly.

J M Furman1, M S Redfern

  • 1Department of Otolaryngology, University of Pittsburgh, Pittsburgh, PA 15213, USA. furman@pitt.edu

Journal of Vestibular Research : Equilibrium & Orientation
|November 26, 2002
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Effects of natural shoe wear on traction performance: a longitudinal study.

Footwear science·2023
Same author

Interpersonal interactions for haptic guidance during balance exercises.

Gait & posture·2018
Same author

Rotational testing.

Handbook of clinical neurology·2016
Same author

Lumbar muscle size and locations from CT scans of 96 women of age 40 to 63 years.

Clinical biomechanics (Bristol, Avon)·2013
Same author

Neuroimaging to detect cortical projection of vestibular response to caloric stimulation in young and older adults using functional near-infrared spectroscopy (fNIRS).

NeuroImage·2013
Same author

Harmonic ratios: a quantification of step to step symmetry.

Journal of biomechanics·2013

Older adults, like younger adults, struggle to visually suppress otolith-driven eye movements during off-vertical axis rotation (OVAR). This visual-otolith interaction impairment is more pronounced in older individuals.

Area of Science:

  • Neuroscience
  • Ophthalmology
  • Gerontology

Background:

  • The otolith organs are crucial for sensing linear acceleration and head tilt.
  • Visual-otolith interaction influences balance and spatial orientation.
  • Age-related changes may affect sensory integration and motor control.

Purpose of the Study:

  • To assess visual-otolith interaction in healthy older adults.
  • To compare the responses of older subjects to those of younger subjects.
  • To investigate the ability to suppress otolith-induced eye movements visually.

Main Methods:

  • Utilized off-vertical axis rotation (OVAR) to stimulate otolith organs.
  • Recorded eye movement responses using electro-oculography (EOG).
  • Tested responses in darkness, with a visual surround, and with a fixation target.

Related Experiment Videos

Main Results:

  • Older subjects showed a modulation component during OVAR similar to young subjects in the dark and with a visual surround.
  • Visual suppression of the modulation component was incomplete in older subjects, similar to young subjects.
  • The modulation component was generally larger in older subjects.

Conclusions:

  • Older adults exhibit difficulties in visually suppressing otolith-induced modulation during OVAR.
  • Age does not fundamentally alter the pattern of visual-otolith interaction impairment.
  • Findings confirm previous observations in younger populations and highlight age-related sensory processing differences.