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

Dynamic range enhancement for cochlear implants.

Robert S Hong1, Jay T Rubinstein, Dan Wehner

  • 1Department of Otolaryngology-Head and Neck Surgery, University of Iowa, Iowa City, Iowa, USA.

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology
|July 10, 2003
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

A genome-wide genetic screen identifies a novel kDNA replication protein in trypanosomes.

Nucleic acids research·2026
Same author

Lossless resistive micro-heater design for reconfigurable phase-change photonics.

Optics letters·2026
Same author

FMOPhore for hotspot identification and efficient fragment-to-lead growth strategies.

Nature communications·2026
Same author

In Memoriam: Jack M. Kartush, M.D., 1952 to 2025.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
Same author

Genetic origins and proteomic consequences of kinetoplast loss in trypanosomes.

PLoS pathogens·2026
Same author

Acoziborole resistance associated mutations in Trypanosoma brucei CPSF3.

PLoS pathogens·2026
Same journal

Reply to: Distinguishing Meniere's Disease From Vestibular Migraine.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
Same journal

Preserving the Membranous Labyrinth With a Piezoelectric Drill? Exploring Potential for Semicircular Canal Surgery.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
Same journal

Biomechanical Elucidation of Temporal Bone Fracture Mechanisms Using Finite Element Analysis: Identification of Stress-Concentration Sites and Crack Propagation Simulation Under Static Loading.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
Same journal

The Impact of Robot-Assisted Electrode Insertion on Cochlear Implant Surgery Time: A Retrospective Study.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
Same journal

Efficacy of Cochlear Implantation in Kelch-like Protein-11 (KLHL11) IgG-Associated Rhombencephalitis.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
Same journal

The Pediatric Cochlear Implant Use Questionnaire: Assessing Habits and Barriers to Use.

Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·2026
See all related articles

Adding a continuous pulse train to cochlear implant signals significantly increases the psychophysical dynamic range for patients. This enhancement improves the range of sound intensities audible to cochlear implant (CI) users.

Area of Science:

  • Auditory Neuroscience
  • Biomedical Engineering
  • Otolaryngology

Background:

  • Cochlear implant (CI) users have a significantly reduced hearing dynamic range compared to normal-hearing individuals.
  • This limitation negatively impacts speech perception and sound quality in CI recipients.
  • High-rate pulse trains may induce neural activity, potentially expanding the CI dynamic range.

Purpose of the Study:

  • To investigate if adding a continuous, unmodulated, high-rate pulse train to sinusoidal stimuli increases the psychophysical dynamic range in cochlear implant recipients.
  • To quantify the extent of dynamic range increase achieved through this method.

Main Methods:

  • A prospective, single-blinded study involving 29 patients with Clarion CII cochlear implants.
  • Psychophysical dynamic range was measured using sinusoidal stimuli.

Related Experiment Videos

  • Measurements were taken with and without the addition of an unmodulated high-rate pulse train at various levels.

    • Main Results:

    • All 28 tested subjects showed an increase in dynamic range when the pulse train was applied.
    • The mean maximum increase in dynamic range across subjects was 6.7 dB.
    • The addition of the pulse train effectively expanded the audible intensity range for participants.

    Conclusions:

    • The addition of an unmodulated high-rate pulse train to the electrical signal in cochlear implants significantly enhances the dynamic range for sinusoidal stimuli.
    • This technique offers a promising method for improving the auditory experience and functional hearing for cochlear implant users.