Interactions Between Slopes of Residual Hearing and Frequency Maps in Simulated Bimodal and Electric–Acoustic Stimulation Hearing.
Purpose: The aim of this study was to determine the effects of residual hearing slopes and cochlear implant frequency map settings on bimodal and electric– acoustic stimulation (EAS) benefits in speech perception. Method: Adults with normal hearing were recruited for simulated bimodal and EAS hearin...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 67; no. 1; pp. 282 - 296 |
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| Autores principales: | , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
Jan2024
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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=ssf&AN=174704276&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 174704276 longDbName: Social Sciences Full Text (H.W. Wilson) uiTag: AN controlInfo: bkinfo: jinfo: jid: 10924388 1SM jtl: Journal of Speech, Language & Hearing Research issn: 10924388 maglogo: N pubinfo: dt: Jan2024 vid: 67 iid: 1 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 174704276 10.1044/2023_JSLHR-22-00629 ppf: 282 ppct: 14 formats: fmt: @attributes: type: P size: 1.5MB tig: atl: Interactions Between Slopes of Residual Hearing and Frequency Maps in Simulated Bimodal and Electric–Acoustic Stimulation Hearing. aug: au: Yang-Soo Yoon Straw, Shea affil: Department of Communication Sciences and Disorders, Baylor University, Waco, TX. su: Hearing Analysis of variance Speech perception Cochlear implants Experimental design Statistics Noise Simulation methods in education T-test (Statistics) Hearing disorders Electric stimulation Descriptive statistics Research funding Acoustic stimulation Data analysis sug: subj: Hearing Analysis of variance Speech perception Cochlear implants Experimental design Statistics Noise Simulation methods in education T-test (Statistics) Hearing disorders Electric stimulation Descriptive statistics Research funding Acoustic stimulation Data analysis ab: Purpose: The aim of this study was to determine the effects of residual hearing slopes and cochlear implant frequency map settings on bimodal and electric– acoustic stimulation (EAS) benefits in speech perception. Method: Adults with normal hearing were recruited for simulated bimodal and EAS hearing. Sentence perception was measured unilaterally and bilaterally. For the acoustic stimulation, three slopes of high-frequency hearing loss were created using low-pass filters with a cutoff frequency of 500 Hz: steep (96 dB/ octave), medium (48 dB/octave), and shallow (24 dB/octave). For the electric stimulation, an eight-channel sinewave vocoder was used with an output frequency range (1000–7938 Hz) with three input frequency ranges to create frequency maps, overlap (188–7938 Hz), meet (500–7938 Hz), and gap (750– 7938 Hz), relative to the cutoff frequency in the acoustic stimulation. Results: The largest bimodal/EAS benefit occurred with the shallow slope, and the smallest occurred with the steep slope. The effects of the slopes on bimodal/EAS benefit were greatest with the meet or gap map and the least with the overlap map. EAS benefit was greater than bimodal benefit at higher signalto-noise ratios regardless of frequency map. Conclusions: The results indicate that correlation between bimodal/EAS benefit and residual hearing could potentially improve if slopes were considered. The optimal frequency map differed with different slopes, suggesting that the slopes of residual hearing should be carefully considered in fitting bimodal and EAS hearing. EAS hearing provided greater benefit over bimodal hearing, suggesting that spectrotemporal integration was better within one ear (i.e., EAS) than across ears (i.e., bimodal). pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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