Electrical stimulation rate effects on speech perception in cochlear implants.
The objective of this study was to explore cochlear implant users' speech perception performance in quiet and in noise for low to moderate stimulation rates. Eight postlingually deaf adult users of the Nucleus CI24 cochlear implant (contour electrode array) using the ESPrit 3G speech processor parti...
| Publicado en: | International Journal of Audiology Vol. 48; no. 8; pp. 561 - 568 |
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| Autores principales: | , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Taylor & Francis Ltd
Aug2009
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| 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=105414378&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105414378 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14992027 JW2 jtl: International Journal of Audiology issn: 14992027 maglogo: Y pubinfo: dt: Aug2009 vid: 48 iid: 8 pid: 377 pub: Taylor & Francis Ltd place: Philadelphia, Pennsylvania artinfo: ui: 105414378 2010381176 10.1080/14992020902858967 NLM19842810 105414378 ppf: 561 ppct: 7 formats: fmt: @attributes: type: P tig: atl: Electrical stimulation rate effects on speech perception in cochlear implants. aug: au: Arora K Dawson P Dowell R Vandali A affil: Department of Otolaryngology, The University of Melbourne, Australia sug: subj: Cochlear Implant Electric Stimulation Noise Patient Attitudes Speech Perception Aged Analysis of Variance Chi Square Test Descriptive Statistics Experimental Studies Friedman Test Funding Source Kruskal-Wallis Test Middle Age Post Hoc Analysis Questionnaires Repeated Measures Time Factors Victoria Word Lists Human Aged: 65+ years Middle Aged: 45-64 years ab: The objective of this study was to explore cochlear implant users' speech perception performance in quiet and in noise for low to moderate stimulation rates. Eight postlingually deaf adult users of the Nucleus CI24 cochlear implant (contour electrode array) using the ESPrit 3G speech processor participated in this study. Monosyllabic word recognition in quiet and sentence perception in noise was evaluated for low to moderate stimulation rates of 275, 350, 500, and 900 pulses-per-second/channel (pps/ch). All four stimulation rate programs were balanced for loudness. A repeated ABCD experimental design was employed. Take home practice was provided with each stimulation rate. Subjects also responded to a comparative questionnaire to examine their rate preference for a variety of listening situations. Results for six of the eight subjects showed no significant effect of rate for monosyllables in quiet. However, results for the sentence test in noise demonstrated improvements with 500 or 900 pps/ch stimulation rates in seven out of the eight subjects. Although there was not a close relationship between each subject's subjective preference and the rate program that provided best speech perception, most subjects indicated a preference for 500 pps/ch rate in noise. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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