NDLI: Exploration of stimulus-frequency otoacoustic emission suppression tuning in hearing-impaired listeners

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Exploration of stimulus-frequency otoacoustic emission suppression tuning in hearing-impaired listeners

Content Provider	Scilit
Author	Charaziak, Karolina K. Souza, Pamela E. Siegel, Jonathan H.
Copyright Year	2014
Description	Journal: International Journal of Audiology Objective: Otoacoustic emissions (OAEs) can provide useful measures of tuning of auditory filters. We previously established that stimulus-frequency (SF) OAE suppression tuning curves (STCs) reflect major features of behavioral tuning (psychophysical tuning curves, PTCs) in normally-hearing listeners. Here, we aim to evaluate whether SFOAE STCs reflect changes in PTC tuning in cases of abnormal hearing. Design: PTCs and SFOAE STCs were obtained at 1 kHz and/or 4 kHz probe frequencies. For exploratory purposes, we collected SFOAEs measured across a wide frequency range and contrasted them to commonly measured distortion product (DP) OAEs. Study sample: Thirteen listeners with varying degrees of sensorineural hearing loss. Results: Except for a few listeners with the most hearing loss, the listeners had normal/nearly normal PTCs. However, attempts to record SFOAE STCs in hearing-impaired listeners were challenging and sometimes unsuccessful due to the high level of noise at the SFOAE frequency, which is not a factor for DPOAEs. In cases of successful measurements of SFOAE STCs there was a large variability in agreement between SFOAE STC and PTC tuning. Conclusions: These results indicate that SFOAE STCs cannot substitute for PTCs in cases of abnormal hearing, at least with the paradigm adopted in this study.
Related Links	http://europepmc.org/articles/pmc4492303?pdf=render https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4492303/pdf
ISSN	14992027
e-ISSN	17088186
DOI	10.3109/14992027.2014.941074
Journal	International Journal of Audiology
Issue Number	2
Volume Number	54
Language	English
Publisher	Informa UK Limited
Publisher Date	2014-09-02
Access Restriction	Open
Subject Keyword	Journal: International Journal of Audiology Acoustics and Ultrasonics Frequency Selectivity Otoacoustic Emissions Psychophysical Tuning Curve Suppression Tuning Curve Hearing Impairment
Content Type	Text
Subject	Speech and Hearing Linguistics and Language

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