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Investigating the effects of noise exposure on self-report, behavioral and electrophysiological indices of hearing damage in musicians with normal audiometric thresholds
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Extended high frequency hearing and speech perception implications in adults and children
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In: Hear Res (2020)
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Effects of Age and Noise Exposure on Proxy Measures of Cochlear Synaptopathy
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Acoustic middle-ear-muscle-reflex thresholds in humans with normal audiograms:No relations to tinnitus, speech perception in noise, or noise exposure
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Abstract:
The acoustic middle-ear-muscle reflex (MEMR) has been suggested as a sensitive non-invasive measure of cochlear synaptopathy, the loss of synapses between inner hair cells and auditory nerve fibers. In the present study, clinical MEMR thresholds were measured for 1-, 2-, and 4-kHz tonal elicitors, using a procedure shown to produce thresholds with excellent reliability. MEMR thresholds of 19 participants with tinnitus and normal audiograms were compared to those of 19 age- and sex-matched controls. MEMR thresholds did not differ significantly between the two groups at any frequency. These 38 participants were included in a larger sample of 70 participants with normal audiograms. For this larger group, MEMR thresholds were compared to a measure of spatial speech perception in noise (SPiN) and a detailed self-report estimate of lifetime noise exposure. MEMR thresholds were unrelated to either SPiN or noise exposure, despite a wide range in both measures. It is possible that thresholds measured using a clinical paradigm are less sensitive to synaptopathy than those obtained using more sophisticated measurement techniques; however, we had good sensitivity at the group level, and even trends in the hypothesized direction were not observed. To the extent that MEMR thresholds are sensitive to cochlear synaptopathy, the present results provide no evidence that tinnitus, SPiN, or noise exposure are related to synaptopathy in the population studied.
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URL: https://eprints.lancs.ac.uk/id/eprint/129703/ https://doi.org/10.1016/j.neuroscience.2018.12.019 https://eprints.lancs.ac.uk/id/eprint/129703/1/MEMR_paper_181209_for_Pure.pdf
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Timing Of Primary Surgery for cleft palate (TOPS): protocol for a randomised trial of palate surgery at 6 months versus 12 months of age
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Timing Of Primary Surgery for cleft palate (TOPS): protocol for a randomised trial of palate surgery at 6 months versus 12 months of age.
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Timing Of Primary Surgery for cleft palate (TOPS): protocol for a randomised trial of palate surgery at 6 months versus 12 months of age.
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Impaired speech perception in noise with a normal audiogram:No evidence for cochlear synaptopathy and no relation to lifetime noise exposure
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Impaired speech perception in noise with a normal audiogram: No evidence for cochlear synaptopathy and no relation to lifetime noise exposure
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No evidence for enhanced processing of speech that is low-pass filtered near the edge frequency of cochlear dead regions in children
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Tinnitus and sleep difficulties after cochlear implantation
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Effects of broadband noise on cortical evoked auditory responses at different loudness levels in young adults
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The effect of low-pass filtering on identification of nonsense syllables in quiet by school-age children with and without cochlear dead regions
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Listening effort at signal-to-noise ratios that are typical of the school classroom
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Reorganization of the Adult Auditory System: Perceptual and Physiological Evidence From Monaural Fitting of Hearing Aids
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Reorganization of the Adult Auditory System: Perceptual and Physiological Evidence From Monaural Fitting of Hearing Aids
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