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

Celene McNeill*, William Noble, Suzanne C. Purdy, Anna O'Brien, Mridula Sharma

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Citations (Scopus)


This case is of a 70-year-old man with single-sided deafness (SSD) in the right ear since childhood, who developed a sudden severe hearing loss in the left ear at the age of 63. Eventually, after he received cochlear implants in both ears, he started to present behavioural auditory processing skills associated with binaural hearing, such as improved ability to understand speech in the presence of background noise, and sound localization. Outcomes were measured using cortical auditory evoked potentials, speech perception in noise, sound localization tests, and a self-rating questionnaire. The results suggest that even after more than 50 years of unilateral deafness it was possible to develop binaural interaction and sound localization as a result of electric auditory stimulation.

Original languageEnglish
Pages (from-to)50-53
Number of pages4
JournalCochlear implants international
Issue number1
Publication statusPublished - Feb 2012


  • Auditory deprivation
  • Bilateral cochlear implant
  • Cortical plasticity
  • Single-sided deafness (SSD)
  • Sound localization

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