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Related Experiment Video

Updated: May 24, 2026

Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode
03:49

Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode

Published on: October 11, 2024

Bilateral cochlear implants in long-term and short-term deafness.

Celene McNeill1, William Noble, Suzanne C Purdy

  • 1Healthy Hearing & Balance Care, Australia. cmcneill@tpg.com.au

Cochlear Implants International
|February 21, 2012
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

The Cochlea01:13

The Cochlea

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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Even after decades of single-sided deafness (SSD), cochlear implants enabled a 70-year-old man to develop binaural hearing skills. This demonstrates the potential for auditory processing improvements through electric auditory stimulation.

Area of Science:

  • Neuroscience
  • Audiology
  • Otolaryngology

Background:

  • Single-sided deafness (SSD) presents significant challenges in auditory processing, particularly speech comprehension in noise and sound localization.
  • Long-term unilateral deafness can impact the brain's ability to process auditory information binaurally.

Observation:

  • A 70-year-old man with lifelong right-ear SSD and recent left-ear hearing loss underwent bilateral cochlear implantation.
  • Post-implantation, the patient exhibited notable improvements in behavioral auditory processing skills associated with binaural hearing.

Findings:

  • The patient demonstrated enhanced speech perception in noisy environments and improved sound localization abilities.
  • Cortical auditory evoked potentials, speech-in-noise tests, and localization tests confirmed the development of binaural interaction.

Related Experiment Videos

Last Updated: May 24, 2026

Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode
03:49

Enhanced Cochlear Coverage and Hearing Preservation in High-Frequency Hearing Loss via Electric Acoustic Stimulation with Longer Electrode

Published on: October 11, 2024

Implications:

  • This case suggests that binaural hearing and sound localization skills can be acquired even after extended periods of unilateral deafness, facilitated by cochlear implants.
  • Electric auditory stimulation may promote neuroplasticity, enabling the development of binaural processing capabilities in adults with long-standing deafness.