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Updated: Jun 7, 2025

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

Published on: March 24, 2023

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Cochlear Implant Sound Quality.

Michael F Dorman1, Sarah C Natale1, Nadine Buczak2,3

  • 1Arizona State University, Tempe.

Journal of Speech, Language, and Hearing Research : JSLHR
|November 19, 2024
PubMed
Summary
This summary is machine-generated.

Experienced cochlear implant (CI) users describe sound quality differently than expected, with "Clear" becoming the most common term over time. This differs from single-sided deaf (SSD) patients, suggesting CI experience alters sound perception.

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Area of Science:

  • Audiology
  • Biomedical Engineering
  • Neuroscience

Background:

  • Cochlear implants (CIs) restore hearing but sound quality perception varies.
  • Understanding patient-described sound quality is crucial for device optimization.
  • Previous studies used single-sided deaf (SSD) patients for sound quality matching.

Purpose of the Study:

  • To identify common terms used by conventional CI patients to describe sound quality.
  • To compare these descriptors with acoustic matches from SSD patients.
  • To explore how CI experience influences sound quality perception.

Main Methods:

  • Surveyed 255 conventional CI patients (Advanced Bionics, Cochlear, MED-EL) using a 25-adjective questionnaire.
  • Collected data at two time points: near activation (T1) and current use (T2).
  • Analyzed descriptor frequency and compared responses based on electrode array length and CI experience.

Main Results:

  • Initially (T1), descriptors like 'Computer-like,' 'Treble-y,' and 'Metallic' were common.
  • 'HiPitched' descriptors were more frequent in patients with shorter electrode arrays.
  • Over time (T2), 'Clear' became the dominant descriptor for two-thirds of patients, with initial differences diminishing.

Conclusions:

  • Conventional CI patients' sound quality descriptors evolve with experience.
  • Perceived sound alterations are less salient to experienced conventional CI users compared to SSD patients.
  • Lack of a normal-hearing ear exemplar may influence conventional CI users' perception over time.