Benefits of localization and speech perception with multiple noise sources in listeners with a short-electrode cochlear implant.
Reads0
Chats0
TLDR
Combined use of both hearing aids and the co-lear implant show significant benefits for both localization and speech perception in noise for users with a short-electrode cochlear implant.Abstract:
BACKGROUND Research suggests that for individuals with significant low-frequency hearing, implantation of a short-electrode cochlear implant may provide benefits of improved speech perception abilities. Because this strategy combines acoustic and electrical hearing within the same ear while at the same time preserving low-frequency residual acoustic hearing in both ears, localization abilities may also be improved. However, very little research has focused on the localization and spatial hearing abilities of users with a short-electrode cochlear implant. PURPOSE The purpose of this study was to evaluate localization abilities for listeners with a short-electrode cochlear implant who continue to wear hearing aids in both ears. A secondary purpose was to document speech perception abilities using a speech-in-noise test with spatially separate noise sources. RESEARCH DESIGN Eleven subjects that utilized a short-electrode cochlear implant and bilateral hearing aids were tested on localization and speech perception with multiple noise locations using an eight-loudspeaker array. Performance was assessed across four listening conditions using various combinations of cochlear implant and/or hearing aid use. RESULTS Results for localization showed no significant difference between using bilateral hearing aids and bilateral hearing aids plus the cochlear implant. However, there was a significant difference between the bilateral hearing aid condition and the implant plus use of a contralateral hearing aid for all 11 subjects. Results for speech perception showed a significant benefit when using bilateral hearing aids plus the cochlear implant over use of the implant plus only one hearing aid. CONCLUSION Combined use of both hearing aids and the cochlear implant show significant benefits for both localization and speech perception in noise for users with a short-electrode cochlear implant. These results emphasize the importance of low-frequency information in two ears for the purpose of localization and speech perception in noise.read more
Citations
More filters
Journal ArticleDOI
Cochlear implantation with hearing preservation yields significant benefit for speech recognition in complex listening environments
René H. Gifford,Michael F. Dorman,Henryk Skarżyński,Artur Lorens,Marek Polak,Colin L. W. Driscoll,Peter S. Roland,Craig A. Buchman +7 more
TL;DR: It is suggested that preserved low-frequency hearing improves speech understanding for CI recipients, and testing in complex listening environments, in which binaural timing cues differ for signal and noise, may best demonstrate the value of having two ears with low- frequencies.
Journal ArticleDOI
Multicenter clinical trial of the Nucleus Hybrid S8 cochlear implant: Final outcomes.
Bruce J. Gantz,Camille C. Dunn,Jacob Oleson,Marlan R. Hansen,Aaron J. Parkinson,Christopher W. Turner +5 more
TL;DR: The concept of expanding electrical speech processing to those with more residual acoustic hearing with a less‐invasive shorter cochlear implant (CI) with the Nucleus Hybrid S8 CI has been ongoing since 1999 and this report describes the final outcomes.
Journal ArticleDOI
Impact of Intrascalar Electrode Location, Electrode Type, and Angular Insertion Depth on Residual Hearing in Cochlear Implant Patients: Preliminary Results.
George B. Wanna,Jack H. Noble,René H. Gifford,Mary S. Dietrich,Alex D. Sweeney,Dongqing Zhang,Benoit M. Dawant,Alejandro Rivas,Robert F. Labadie +8 more
TL;DR: Techniques to decrease the risk of electrode excursion from ST are likely to result in improved residual hearing and CI performance, as Scalar excursion is a strong predictor of losing residual hearing.
Journal ArticleDOI
Availability of binaural cues for bilateral implant recipients and bimodal listeners with and without preserved hearing in the implanted ear
TL;DR: Evidence is provided for the supposition that implant recipients with bilateral acoustic hearing have access to binaural cues, which should, in theory, provide greater benefit in noisy listening environments, and it is possible that in more realistic listening environments for which the diffuse noise is not directed toward the processor/hearing aid mic, hearing preservation patients have bINAural cues for improved speech understanding.
Journal ArticleDOI
Minimum Reporting Standards for Adult Cochlear Implantation.
TL;DR: New minimum standards for reporting adult cochlear implant outcomes are outlined, requiring investigators to include the presently proposed minimal data set to facilitate interstudy comparability and consistency of reporting.
References
More filters
Journal ArticleDOI
Sound Localization by Human Listeners
TL;DR: The process by which spatial cues are used for localizing a sound source in a free-field listening situation is summarized, and current evidence does not support the view that auditory motion perception is anything more than detection of changes in static location over time.
Journal ArticleDOI
Transformation of sound pressure level from the free field to the eardrum in the horizontal plane.
TL;DR: Measurements of pressure transformation, azimuthal dependence, interaural level difference, and ear canal pressure distribution from 12 studies are brought together in a common framework, leading to the construction of self‐consistent families of curves best fitting the data.
Journal ArticleDOI
Preservation of Hearing in Cochlear Implant Surgery: Advantages of Combined Electrical and Acoustical Speech Processing
TL;DR: Surgical strategies used for hearing preservation with a short hybrid cochlear implant, and the benefits of preserved residual low‐frequency hearing, improved word understanding in noise, and music appreciation are described.
Journal ArticleDOI
Binaural benefits for adults who use hearing aids and cochlear implants in opposite ears.
TL;DR: The results clearly indicate that binaural advantages can be obtained from using a hearing aid with a cochlear implant in opposite ears and it is recommended that bimodal stimulation be standard practice for rehabilitation of adults who wear unilateral co chlear implants.
Journal ArticleDOI
Speech recognition in noise for cochlear implant listeners: benefits of residual acoustic hearing.
TL;DR: These experiments provide strong preliminary support for retaining residual low-frequency acoustic hearing in cochlear implant patients and are consistent with the idea that better perception of voice pitch, which can aid in separating voices in a background of other talkers, was responsible for this advantage.