An attempt to improve bilateral cochlear implants by increasing the distance between electrodes and providing complementary information to the two ears.
Objectives: The purpose of this investigation was to determine if adult bilateral cochlear implant recipients could benefit from using a speech processing strategy in which the input spectrum was interleaved among electrodes across the two implants. Design: Two separate experiments were conducted. I...
| Publicado en: | Journal of the American Academy of Audiology Vol. 21; no. 1; pp. 52 - 66 |
|---|---|
| Autores principales: | , , , , , |
| Formato: | research tables/charts Journal Article |
| Publicado: |
Thieme Medical Publishing Inc.
Jan2010
|
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105286302&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105286302 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10500545 9OC jtl: Journal of the American Academy of Audiology issn: 10500545 maglogo: Y pubinfo: dt: Jan2010 vid: 21 iid: 1 pid: 2811 pub: Thieme Medical Publishing Inc. place: New York, New York artinfo: ui: 105286302 47917294 2010528921 10.3766/jaaa.21.1.7 NLM20085200 105286302 ppf: 52 ppct: 14 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: An attempt to improve bilateral cochlear implants by increasing the distance between electrodes and providing complementary information to the two ears. aug: au: Tyler RS Witt SA Dunn CC Perreau A Parkinson AJ Wilson BS affil: Department of Otolaryngology-Head and Neck Surgery, University of Iowa, 200 Hawkins Road, Iowa City, IA 52242-1078 sug: subj: Cochlear Implant Electrodes Experimental Studies Funding Source Human Language Processing ab: Objectives: The purpose of this investigation was to determine if adult bilateral cochlear implant recipients could benefit from using a speech processing strategy in which the input spectrum was interleaved among electrodes across the two implants. Design: Two separate experiments were conducted. In both experiments, subjects were tested using a control speech processing strategy and a strategy in which the full input spectrum was filtered so that only the output of half of the filters was audible to one implant, while the output of the alternative filters was audible to the other implant. The filters were interleaved in a way that created alternate frequency 'holes' between the two cochlear implants. Results: In experiment one, four subjects were tested on consonant recognition. Results indicated that one of the four subjects performed better with the interleaved strategy, one subject received a binaural advantage with the interleaved strategy that they did not receive with the control strategy, and two subjects showed no decrement in performance when using the interleaved strategy. In the second experiment, 11 subjects were tested on word recognition, sentences in noise, and localization (it should be noted that not all subjects participated in all tests). Results showed that for speech perception testing one subject achieved significantly better scores with the interleaved strategy on all tests, and seven subjects showed a significant improvement with the interleaved strategy on at least one test. Only one subject showed a decrement in performance on all speech perception tests with the interleaved strategy. Out of nine subjects, one subject preferred the sound quality of the interleaved strategy. No one performed better on localization with the interleaved strategy. Conclusion: Data from this study indicate that some adult bilateral cochlear implant recipients can benefit from using a speech processing strategy in which the input spectrum is interleaved among electrodes across the two implants. It is possible that the subjects in this study who showed a significant improvement with the interleaved strategy did so because of less channel interaction; however, this hypothesis was not directly tested. pubtype: Academic Journal doctype: research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|