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

Temporal pitch in electric hearing.

Fan Gang Zeng1

  • 1Departments of Otolaryngology, Anatomy and Neurobiology, Biomedical Engineering and Cognitive Sciences, University of California, Irvine, CA 92697, USA. fzeng@uci.edu

Hearing Research
|November 16, 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 journal

Effects of early hearing deficits on olivocochlear efferent neuron morphology in mice.

Hearing research·2026
Same journal

Cochlear aging after synaptopathic noise: age-noise interactions in hair cell loss and axonal degeneration.

Hearing research·2026
Same journal

MERGE: Misophonia and emotion regulation in a guided experience sampling study.

Hearing research·2026
Same journal

Repopulating microglia recapitulate developmental characteristics during a period of auditory circuit recovery.

Hearing research·2026
Same journal

Deficits in tail-lift and air-righting reflexes in rats after ototoxicity associate with loss of vestibular type I hair cells.

Hearing research·2026
Same journal

Slc16a5 (MCT6) knockout induces sex-dependent changes in auditory function, hair cell viability and cochlear transcriptomic programs in the mouse.

Hearing research·2026
See all related articles

Cochlear implant users can discern pitch differences up to 300 Hz, suggesting this is the limit for temporal coding. Future implants need more electrodes for better pitch perception.

Area of Science:

  • Auditory Neuroscience
  • Bioengineering
  • Signal Processing

Background:

  • Pitch information is encoded by both place and temporal codes in the auditory system.
  • The brain's utilization of these pitch codes, particularly in cochlear implant (CI) users, remains incompletely understood.
  • Cochlear implants offer a unique tool to dissociate place and temporal coding by allowing independent manipulation.

Purpose of the Study:

  • To investigate the contribution of temporal coding to pitch perception in cochlear implant users.
  • To determine the upper frequency limit of temporal coding for pitch discrimination.
  • To evaluate the efficacy of current pitch models and suggest improvements for CI technology.

Main Methods:

  • Utilized cochlear implant users with fixed electrode stimulation to isolate temporal coding effects.

Related Experiment Videos

  • Measured frequency discrimination thresholds to assess pitch resolution.
  • Collected pitch estimation data to understand perceived pitch.
  • Applied an integration model to relate pitch estimation and frequency discrimination.

    • Main Results:

    • Cochlear implant users demonstrated pitch discrimination abilities only up to approximately 300 Hz.
    • An integration model successfully predicted pitch estimation from frequency discrimination, supporting Fechner's hypothesis.
    • The 300 Hz limit suggests it represents the boundary for effective temporal coding in this context.

    Conclusions:

    • The temporal code's contribution to pitch perception in cochlear implant users is limited to frequencies around 300 Hz.
    • Current pitch models for cochlear implants should incorporate absolute place information.
    • Enhancing cochlear implant design with a greater number of independent electrodes is crucial for restoring a wider pitch range and resolution.