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Volterra Slice otoacoustic emissions recorded using maximum length sequences from patients with sensorineural hearing loss

Volterra Slice otoacoustic emissions recorded using maximum length sequences from patients with sensorineural hearing loss
Volterra Slice otoacoustic emissions recorded using maximum length sequences from patients with sensorineural hearing loss
When normally hearing ears are stimulated with maximum length sequences (MLS) of clicks, a family of non-linear temporal interaction components of otoacoustic emissions (OAEs) can be derived, which have been named Volterra Slice OAEs (VS OAEs). This study investigates the sensitivity of VS OAEs to sensorineural hearing impairment in adults, compared to that of the widely used derived non-linear click evoked OAE (DNL CEOAE). VS OAEs and DNL CEOAEs were obtained from 24 normally hearing and 24 hearing impaired ears using a custom-built MLS system and a Otodynamics 'IL088' OAE Analyzer, respectively. The results show that, based on waveform reproducibility, VS OAEs are as successful as DNL CEOAEs at separating normal from impaired ears at the audiometric frequencies of 1 and 2 kHz, where a strong correlation is found between the amplitudes of the two OAE types. At 4 kHz however, VS OAEs are a significantly better indicator of hearing loss than DNL CEOAEs. This difference at 4 kHz appears to be due to the lack of stimulus artefact contamination of VS OAEs in the early, high frequency portion of the response. The findings suggest that VS OAEs may provide a better diagnostic and monitoring tool for hearing loss at high frequencies than the conventional DNL CEOAE.
non-linearity, aminoglycoside-induced ototoxicity, volterra series, components, hearing loss, evoked otoacoustic emissions, adults, ear, hearing, sensitivity, impairment, ears, correlation, sequences, click evoked, normally hearing, clicks, family, impaired subjects, system, identification, otoacoustic emissions, otoacoustic emission, maximum length sequence, acoustic emissions, maximum length sequences, hearing impairment, click
0378-5955
121-136
De Boer, J.
16bd322e-ec43-4ab4-9e8c-9bc3ff483dc6
Thornton, A.R.D.
c521ce20-d056-4748-af28-e2293f3593d0
De Boer, J.
16bd322e-ec43-4ab4-9e8c-9bc3ff483dc6
Thornton, A.R.D.
c521ce20-d056-4748-af28-e2293f3593d0

De Boer, J. and Thornton, A.R.D. (2006) Volterra Slice otoacoustic emissions recorded using maximum length sequences from patients with sensorineural hearing loss. Hearing Research, 219 (1-2), 121-136. (doi:10.1016/j.heares.2006.06.009).

Record type: Article

Abstract

When normally hearing ears are stimulated with maximum length sequences (MLS) of clicks, a family of non-linear temporal interaction components of otoacoustic emissions (OAEs) can be derived, which have been named Volterra Slice OAEs (VS OAEs). This study investigates the sensitivity of VS OAEs to sensorineural hearing impairment in adults, compared to that of the widely used derived non-linear click evoked OAE (DNL CEOAE). VS OAEs and DNL CEOAEs were obtained from 24 normally hearing and 24 hearing impaired ears using a custom-built MLS system and a Otodynamics 'IL088' OAE Analyzer, respectively. The results show that, based on waveform reproducibility, VS OAEs are as successful as DNL CEOAEs at separating normal from impaired ears at the audiometric frequencies of 1 and 2 kHz, where a strong correlation is found between the amplitudes of the two OAE types. At 4 kHz however, VS OAEs are a significantly better indicator of hearing loss than DNL CEOAEs. This difference at 4 kHz appears to be due to the lack of stimulus artefact contamination of VS OAEs in the early, high frequency portion of the response. The findings suggest that VS OAEs may provide a better diagnostic and monitoring tool for hearing loss at high frequencies than the conventional DNL CEOAE.

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More information

Published date: 2006
Keywords: non-linearity, aminoglycoside-induced ototoxicity, volterra series, components, hearing loss, evoked otoacoustic emissions, adults, ear, hearing, sensitivity, impairment, ears, correlation, sequences, click evoked, normally hearing, clicks, family, impaired subjects, system, identification, otoacoustic emissions, otoacoustic emission, maximum length sequence, acoustic emissions, maximum length sequences, hearing impairment, click

Identifiers

Local EPrints ID: 62360
URI: http://eprints.soton.ac.uk/id/eprint/62360
ISSN: 0378-5955
PURE UUID: 3959148b-3b43-4bcd-8e1d-ef335f940967

Catalogue record

Date deposited: 08 Sep 2008
Last modified: 15 Mar 2024 11:30

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Contributors

Author: J. De Boer
Author: A.R.D. Thornton

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