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Related Experiment Video

Updated: Dec 18, 2025

Systematic Hearing Performance Evaluation Process for Adolescents with Cochlear Implantation at Early Ages
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Speech Perception Changes in the Acoustically Aided, Nonimplanted Ear after Cochlear Implantation: A Multicenter

Mario A Svirsky1,2,3, Arlene C Neuman1, Jonathan D Neukam1

  • 1Department of Otolaryngology-Head and Neck Surgery, NYU Grossman School of Medicine, New York University, New York, NY 10016, USA.

Journal of Clinical Medicine
|June 11, 2020
PubMed
Summary
This summary is machine-generated.

Cochlear implant (CI) use may decrease speech perception in the non-implanted ear, even with hearing aids. This suggests some bimodal users may neglect acoustic input in favor of the CI signal.

Keywords:
auditory neglectbimodalcochlear implantsdeafnesshearing aidmulticenterspeech perception

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Area of Science:

  • Audiology
  • Neuroscience
  • Biomedical Engineering

Background:

  • Increasing use of cochlear implants (CI) alongside acoustic hearing aids for residual hearing.
  • Need to understand how CI signals affect processing in the non-implanted ear.

Purpose of the Study:

  • To investigate changes in speech perception in bimodal users (CI + acoustic hearing).
  • To examine effects on the implanted ear, non-implanted ear, and both ears together.

Main Methods:

  • Multicenter retrospective study.
  • Compared pre- and post-operative speech perception.
  • Analyzed changes in unaided thresholds and hearing aid function.

Main Results:

  • Speech perception improved in the implanted ear and with both devices.
  • A modest decrease in speech perception was observed in the non-implanted ear.
  • Decreases were more common in users with better CI performance.

Conclusions:

  • CI use may lead to decreased reliance on acoustic input from the non-implanted ear.
  • Some bimodal users might prioritize the CI signal, potentially neglecting acoustic information.