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Related Concept Videos

The Cochlea01:13

The Cochlea

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The cochlea is a coiled structure in the inner ear that contains hair cells—the sensory receptors of the auditory system. Sound waves are transmitted to the cochlea by small bones attached to the eardrum called the ossicles, which vibrate the oval window that leads to the inner ear. This causes fluid in the chambers of the cochlea to move, vibrating the basilar membrane.
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A systematic review of electrode array scalar dislocation after cochlear implant surgery.

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Related Experiment Video

Updated: Jan 11, 2026

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
06:04

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages

Published on: March 24, 2023

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How Cochlear Implant Usage Frequency, Duration, and Total Device Use Influence Cortical Auditory Responses and Speech

Dayse Távora-Vieira1,2,3, Caris Bogdanov1, Patrick F Connolly4,5

  • 1Fiona Stanley Fremantle Hospitals Group.

Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [And] European Academy of Otology and Neurotology
|November 18, 2025
PubMed
Summary

For cochlear implant (CI) users, daily device use hours and total cumulative use (TDU) better reflect hearing performance and central auditory processing than simply the duration of CI use.

Keywords:
CI durationCI frequencyCortical auditory evoked potentialsSpeech perception outcomesTotal device use

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Area of Science:

  • Audiology
  • Neuroscience
  • Biomedical Engineering

Background:

  • Cochlear implant (CI) user hearing performance is linked to device experience.
  • Various metrics exist to quantify CI experience, including CI duration, daily usage (median datalogging hours), and total cumulative device use (TDU).

Purpose of the Study:

  • To compare the effectiveness of three distinct measures of CI experience: CI duration, median datalogging hours, and TDU.
  • To determine which measure of experience best correlates with central auditory processing and hearing outcomes in CI users.

Main Methods:

  • Retrospective analysis of 119 adult CI users.
  • Electrophysiological testing using cortical auditory evoked potentials (CAEPs).
  • Comparison of CAEP responses and speech perception scores with different CI experience metrics.

Main Results:

  • Presence of CAEP responses correlated significantly with median datalogging hours and TDU, but not CI duration.
  • No significant correlations were found between CI experience measures and CAEP latencies or amplitudes.
  • Both median datalogging hours and TDU showed significant correlations with speech perception in quiet.

Conclusions:

  • Median datalogging hours and TDU are superior indicators of CI user experience compared to CI duration.
  • These usage-based metrics are more relevant for assessing central auditory processing and hearing outcomes.