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- Title
Considerations for Fitting Cochlear Implants Bimodally and to the Single-Sided Deaf.
- Authors
Pieper, Sabrina H.; Hamze, Noura; Brill, Stefan; Hochmuth, Sabine; Exter, Mats; Polak, Marek; Radeloff, Andreas; Buschermöhle, Michael; Dietz, Mathias
- Abstract
When listening with a cochlear implant through one ear and acoustically through the other, binaural benefits and spatial hearing abilities are generally poorer than in other bilaterally stimulated configurations. With the working hypothesis that binaural neurons require interaurally matched inputs, we review causes for mismatch, their perceptual consequences, and experimental methods for mismatch measurements. The focus is on the three primary interaural dimensions of latency, frequency, and level. Often, the mismatch is not constant, but rather highly stimulus-dependent. We report on mismatch compensation strategies, taking into consideration the specific needs of the respective patient groups. Practical challenges typically faced by audiologists in the proposed fitting procedure are discussed. While improvement in certain areas (e.g., speaker localization) is definitely achievable, a more comprehensive mismatch compensation is a very ambitious endeavor. Even in the hypothetical ideal fitting case, performance is not expected to exceed that of a good bilateral cochlear implant user.
- Subjects
COCHLEAR implants; HEARING; NEURONS; DEAFNESS; AUDITORY perception; MEDICAL equipment calibration; LOUDNESS; SOUND; NEEDS assessment
- Publication
Trends in Hearing, 2022, p1
- ISSN
2331-2165
- Publication type
Article
- DOI
10.1177/23312165221108259