Exploring the Influence of Extended High-Frequency Hearing on Cochlear Functioning at Lower Frequencies.
Purpose: Diminished basal cochlear function, as indicated by elevated hearing thresholds in the extended high frequencies (EHFs), has been associated with lower levels of click-evoked and distortion-product otoacoustic emissions measured at lower frequencies. However, stimulus-frequency otoacoustic...
| Publicado en: | Journal of Speech, Language & Hearing Research Vol. 67; no. 7; pp. 2473 - 2483 |
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| Autores principales: | , , |
| Formato: | Artículo |
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American Speech-Language-Hearing Association
Jul2024
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| Materias: | |
| 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=178362748&site=ehost-live header: @attributes: shortDbName: ssf uiTerm: 178362748 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: Jul2024 vid: 67 iid: 7 pid: 42 pub: American Speech-Language-Hearing Association artinfo: ui: 178362748 10.1044/2024_JSLHR-23-00652 ppf: 2473 ppct: 10 formats: fmt: @attributes: type: P size: 865KB tig: atl: Exploring the Influence of Extended High-Frequency Hearing on Cochlear Functioning at Lower Frequencies. aug: au: Mishra, Srikanta K. Rodrigo, Hansapani Balan, Jithin R. affil: Department of Speech, Language, and Hearing Sciences, The University of Texas at Austin. School of Mathematical and Statistical Sciences, The University of Texas Rio Grande Valley, Edinburg. su: Hearing Cochlea physiology Auditory perception testing Effect sizes (Statistics) Multiple regression analysis Audiometry Otoacoustic emissions Multivariate analysis Descriptive statistics Hearing levels Data analysis software Confidence intervals sug: subj: Hearing Cochlea physiology Auditory perception testing Effect sizes (Statistics) Multiple regression analysis Audiometry Otoacoustic emissions Multivariate analysis Descriptive statistics Hearing levels Data analysis software Confidence intervals ab: Purpose: Diminished basal cochlear function, as indicated by elevated hearing thresholds in the extended high frequencies (EHFs), has been associated with lower levels of click-evoked and distortion-product otoacoustic emissions measured at lower frequencies. However, stimulus-frequency otoacoustic emissions (SFOAEs) at low-probe levels are reflection-source emissions that do not share the same generation mechanism as distortion-source emissions. The primary objective of the present study was to examine the influence of hearing thresholds in the EHFs on SFOAEs measured at lower frequencies. Method: SFOAEs were recorded from both ears in 45 individuals with normal hearing thresholds in the conventional audiometric frequencies (0.25–8 kHz). Hearing thresholds were also measured at EHFs (10, 12.5, and 16 kHz). SFOAE magnitudes and signal-to-noise ratios (SNRs) were averaged across 1, 2, and 4 kHz probe frequencies and also averaged for high-probe frequencies (2 and 4 kHz). Results: SFOAE magnitudes and SNRs were significantly higher for ears with better EHF hearing relative to poorer EHF hearing, categorized based on the median split. In addition, hearing in the EHFs significantly contributed to the variance in all SFOAE measures, except for the high-frequency SFOAE magnitudes model. However, hearing thresholds at the probe frequencies did not significantly contribute to the variance in SFOAEs. Conclusions: The study findings suggest that alterations in the basal cochlea, as revealed by EHF hearing thresholds, could be associated with diminished cochlear functioning in relatively apical regions, shown by SFOAEs at lower frequencies, in individuals with normal audiograms. These findings underscore the significance of considering EHF thresholds in audiological evaluations, as alterations in these frequencies may reflect broader cochlear health status. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: N holdings: @attributes: islocal: N |
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