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Spectrotemporal Mod...
Spectrotemporal Modulation Sensitivity as a Predictor of Speech-Reception Performance in Noise With Hearing Aids
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- Bernstein, Joshua G. W. (author)
- Walter Reed National Mil Medical Centre, MD 20889 USA
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- Danielsson, Henrik (author)
- Linköpings universitet,Handikappvetenskap,Filosofiska fakulteten,Institutet för handikappvetenskap (IHV)
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- Hällgren, Mathias (author)
- Linköpings universitet,Avdelningen för neuro- och inflammationsvetenskap,Medicinska fakulteten,Region Östergötland, Öron- näsa- och halskliniken US
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- Stenfelt, Stefan (author)
- Linköpings universitet,Avdelningen för neuro- och inflammationsvetenskap,Medicinska fakulteten
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- Rönnberg, Jerker (author)
- Linköpings universitet,Handikappvetenskap,Filosofiska fakulteten,Institutet för handikappvetenskap (IHV)
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- Lunner, Thomas (author)
- Linköpings universitet,Handikappvetenskap,Filosofiska fakulteten,Institutet för handikappvetenskap (IHV),Oticon AS, Denmark
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(creator_code:org_t)
- 2016-11-04
- 2016
- English.
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In: TRENDS IN HEARING. - : SAGE PUBLICATIONS INC. - 2331-2165. ; 20
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Abstract
Subject headings
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- The audiogram predicts amp;lt;30% of the variance in speech-reception thresholds (SRTs) for hearing-impaired (HI) listeners fitted with individualized frequency-dependent gain. The remaining variance could reflect suprathreshold distortion in the auditory pathways or nonauditory factors such as cognitive processing. The relationship between a measure of suprathreshold auditory function-spectrotemporal modulation (STM) sensitivity-and SRTs in noise was examined for 154 HI listeners fitted with individualized frequency-specific gain. SRTs were measured for 65-dB SPL sentences presented in speech-weighted noise or four-talker babble to an individually programmed master hearing aid, with the output of an ear-simulating coupler played through insert earphones. Modulation-depth detection thresholds were measured over headphones for STM (2cycles/octave density, 4-Hz rate) applied to an 85-dB SPL, 2-kHz lowpass-filtered pink-noise carrier. SRTs were correlated with both the high-frequency (2-6 kHz) pure-tone average (HFA; R-2 = .31) and STM sensitivity (R-2 = .28). Combined with the HFA, STM sensitivity significantly improved the SRT prediction (Delta R-2 = .13; total R-2 = .44). The remaining unaccounted variance might be attributable to variability in cognitive function and other dimensions of suprathreshold distortion. STM sensitivity was most critical in predicting SRTs for listenersamp;lt;65 years old or with HFA amp;lt;53 dB HL. Results are discussed in the context of previous work suggesting that STM sensitivity for low rates and low-frequency carriers is impaired by a reduced ability to use temporal fine-structure information to detect dynamic spectra. STM detection is a fast test of suprathreshold auditory function for frequencies amp;lt;2 kHz that complements the HFA to predict variability in hearing-aid outcomes for speech perception in noise.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Oto-rhino-laryngologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Otorhinolaryngology (hsv//eng)
Keyword
- hearing aids; amplitude modulation; cognitive processing; temporal fine structure; noise
Publication and Content Type
- ref (subject category)
- art (subject category)
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