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

Stapedius reflex growth function in cochlear implant patients.

K Stephan1, K Welzl-Müller, H Stiglbrunner

  • 1Clinic for Hearing, Speech and Voice Disorders, University of Innsbruck, Austria.

Audiology : Official Organ of the International Society of Audiology
|January 1, 1990
PubMed
Summary

The stapedius reflex response to electrical stimulation via cochlear implant was studied. Reflex amplitudes generally increased with stimulus intensity, showing a steeper slope for electrical versus acoustic stimulation.

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

Outcome evaluation of the p drivers Program: Randomised controlled trial of a program to improve safe driving among novice drivers.

Accident; analysis and prevention·2024
Same author

Sound localisation of low- and high-frequency sounds in cochlear implant users with single-sided deafness.

International journal of audiology·2022
Same author

Images from the surface of asteroid Ryugu show rocks similar to carbonaceous chondrite meteorites.

Science (New York, N.Y.)·2019
Same author

Are older drivers' driving patterns during an on-road driving task representative of their real-world driving patterns?

Traffic injury prevention·2019
Same author

Improved interaural timing of acoustic nerve stimulation affects sound localization in single-sided deaf cochlear implant users.

Hearing research·2018
Same author

[Effective nutritional supplements or pharmaceuticals : How can they be classified and used?]

Der Internist·2018

Area of Science:

  • Audiology
  • Neuroscience
  • Biomedical Engineering

Background:

  • The stapedius reflex is a middle ear reflex crucial for auditory processing.
  • Cochlear implants bypass damaged cochlear hair cells, stimulating the auditory nerve directly.
  • Understanding electrostimulation effects on the stapedius reflex is vital for optimizing cochlear implant function.

Purpose of the Study:

  • To investigate the growth function of the contralateral stapedius reflex elicited by electrical stimulation through cochlear implants.
  • To compare electrostimulation-induced reflex functions with those from acoustic stimulation in normal-hearing subjects.

Main Methods:

  • Analog electrostimulation via cochlear implant in 9 patients.
  • Acoustic stimulation in 3 normal-hearing subjects.

Related Experiment Videos

  • Monitoring middle ear muscle contraction via compliance change in the contralateral ear.
  • Using sinusoidal signal bursts with identical temporal patterns for both stimulation modes.

    • Main Results:

    • Reflex amplitudes increased with stimulus intensity in most subjects for both electrical and acoustic stimulation.
    • The slope of the intensity function was significantly steeper for electrostimulation (5-85%/dB) compared to acoustic stimulation (2-4%/dB).
    • A frequency-dependent effect was observed for electrostimulation.

    Conclusions:

    • Electrostimulation via cochlear implant effectively elicits the stapedius reflex.
    • The steeper intensity function slope suggests a different neural recruitment pattern for electrical versus acoustic stimulation.
    • Further research into frequency effects is warranted for refining cochlear implant signal processing.