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

Physiological bases and a technique for testing the full range of vestibular function.

D P O'Leary1

  • 1Department of Otolaryngology-Head and Neck Surgery, University of Southern California, School of Medicine, Los Angeles 90033.

Revue De Laryngologie - Otologie - Rhinologie
|January 1, 1992
PubMed
Summary

This study introduces a new bedside test for the vestibulo-ocular reflex (VOR) using active head movements. This portable method effectively assesses VOR function during high-frequency movements relevant to daily activities.

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

Primary hyperparathyroidism causing posterior reversible encephalopathy syndrome: a case report.

Annals of the Royal College of Surgeons of England·2021
Same author

Role of circulating fibrocytes in the diagnosis of acute appendicitis.

BJS open·2020
Same author

Longer small bowel segments are resected in emergency surgery for ileocaecal Crohn's disease with a higher ileostomy and complication rate.

Techniques in coloproctology·2019
Same author

The effect of purse-string approximation versus linear approximation of ileostomy reversal wounds on morbidity rates and patient satisfaction: the 'STOMA' trial.

Techniques in coloproctology·2017
Same author

Clinical assessment to determine the risk of bowel cancer using Symptoms, Age, Mass and Iron deficiency anaemia (SAMI).

The British journal of surgery·2017
Same author

Identification of the optimal visual recording system in open abdominal surgery - a prospective observational study.

Journal of visual communication in medicine·2016

Area of Science:

  • Neuroscience
  • Ophthalmology
  • Audiology

Background:

  • The vestibulo-ocular reflex (VOR) is crucial for visual stability during locomotion, particularly active at frequencies above 2 Hz.
  • Traditional VOR testing often relies on expensive and cumbersome equipment like rotating chairs.
  • There is a need for accessible, portable vestibular testing methods suitable for clinical settings.

Purpose of the Study:

  • To introduce and validate a novel method for assessing horizontal and vertical vestibulo-ocular reflex (VOR) using active head movements.
  • To demonstrate the utility of this method in the natural frequency range relevant to daily activities.
  • To establish a portable and patient-friendly alternative to traditional VOR testing.

Main Methods:

  • Utilizing a head-mounted sensor to monitor active head movements during VOR testing.

Related Experiment Videos

  • Employing specialized computer processing with Fourier analysis to interpret erratic head and eye movement signals.
  • Applying physiological corrections for actively-generated movements at higher frequencies.

    • Main Results:

    • The new method effectively tests horizontal and vertical VORs by analyzing head and eye signals.
    • Higher harmonics of head movements provide valuable data for VOR assessment, similar to complex auditory processing.
    • The test is brief, comfortable for patients, and portable for bedside use.

    Conclusions:

    • Active head movement analysis offers a viable, sophisticated alternative to rotating chair VOR testing.
    • This portable vestibular test is suitable for diagnostic screening in the frequency range most active during daily movements.
    • The method leverages advanced software to substitute for hardware, enhancing accessibility and patient comfort.