TY - JOUR
T1 - Exploration of stimulus-frequency otoacoustic emission suppression tuning in hearing-impaired listeners
AU - Charaziak, Karolina K.
AU - Souza, Pamela E.
AU - Siegel, Jonathan H.
N1 - Funding Information:
This work was supported by NIDCD grant DC006014 (P. Souza) Northwestern University, and AAA Student Investigator Research Grant 2011 (K. Charaziak).
Publisher Copyright:
© 2015 British Society of Audiology, International Society of Audiology, and Nordic Audiological Society.
PY - 2015/2/1
Y1 - 2015/2/1
N2 - 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.
AB - 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.
KW - Frequency selectivity
KW - Hearing impairment
KW - Otoacoustic emissions
KW - Psychophysical tuning curve
KW - Suppression tuning curve
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U2 - 10.3109/14992027.2014.941074
DO - 10.3109/14992027.2014.941074
M3 - Article
C2 - 25290042
AN - SCOPUS:84921316078
SN - 1499-2027
VL - 54
SP - 96
EP - 105
JO - International Journal of Audiology
JF - International Journal of Audiology
IS - 2
ER -