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

Tympanogram recorded under cervical compression

T Nakashima1

  • 1Department of Otorhinolaryngology, Nagoya University School of Medicine, Japan.

Audiology : Official Organ of the International Society of Audiology
|January 1, 1995
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 acute administration of nicotine on convulsive movements and blood levels of corticosterone in old rats.

Japanese journal of pharmacology·1992
Same author

Activation of human herpesvirus-6 in children with acute measles.

Journal of medical virology·1992
Same author

Fatal encephalitis/encephalopathy in primary human herpesvirus-6 infection.

Archives of disease in childhood·1992
Same author

Activation of phospholipase D by platelet-derived growth factor (PDGF) in rat C6 glioma cells: possible role in mitogenic signal transduction.

Neurological research·1992
Same author

Clinical analysis of a series of vertebral aneurysm cases.

Neurosurgery·1992
Same author

A prospective study of human herpesvirus-6 infection in renal transplantation.

Transplantation·1992
Same journal

Apoptosis in the OC-k3 immortalized cell line treated with different agents.

Audiology : official organ of the International Society of Audiology·2002
Same journal

Age-related histopathological changes of the stria vascularis: an experimental model.

Audiology : official organ of the International Society of Audiology·2002
Same journal

Anatomical, metabolic and genetic aspects of age-related hearing loss in mice.

Audiology : official organ of the International Society of Audiology·2002
Same journal

Effect of ageing on otoacoustic emissions and efferent suppression in humans.

Audiology : official organ of the International Society of Audiology·2002
Same journal

Cochlear function and speech recognition in the elderly.

Audiology : official organ of the International Society of Audiology·2002
Same journal

Determination and classification of the problems experienced by hearing-impaired elderly people.

Audiology : official organ of the International Society of Audiology·2002
See all related articles

Cervical vein compression in normal ears altered tympanograms, indicating elevated middle and inner ear pressure affects acoustic impedance. This study reveals pressure changes impact sound transmission in the ear.

Area of Science:

  • Otolaryngology
  • Auditory Physiology

Background:

  • Acoustic impedance is crucial for understanding middle and inner ear function.
  • The effects of external pressure changes on middle and inner ear impedance are not fully understood.

Purpose of the Study:

  • To investigate the impact of cervical vein compression on acoustic impedance measurements.
  • To determine if pressure elevation in the middle and inner ears influences tympanogram characteristics.

Main Methods:

  • Tympanograms were recorded in 19 healthy ears.
  • Cervical veins were compressed during tympanometry.

Main Results:

  • Cervical compression caused a positive shift in tympanogram peak pressure.
  • Peak tympanogram amplitude changed, mimicking stapedius muscle contraction effects.

Related Experiment Videos

  • Observed impedance changes suggest alterations in both perilymphatic and middle ear pressures.

    • Conclusions:

    • Cervical vein compression provides a method to study pressure-induced impedance changes in the ear.
    • Elevated middle and inner ear pressures significantly affect acoustic impedance.
    • Findings contribute to understanding the mechanics of the auditory system under pressure variations.