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The generation mechanisms and repeatability of 2F1-F2 distortion product otoacoustic emissions: study on normally hearing subjects

The generation mechanisms and repeatability of 2F1-F2 distortion product otoacoustic emissions: study on normally hearing subjects
The generation mechanisms and repeatability of 2F1-F2 distortion product otoacoustic emissions: study on normally hearing subjects
The 2F1-F2 distortion product otoacoustic emission (DPOAE) is considered to consist of two generation mechanisms, the so-called place-fixed and wave-fixed mechanisms, depending on the frequency ratio F2/F1. The general assumption is that for a small frequency ratio there is a predominantly place-fixed emission mechanism, while with a larger frequency ratio there is a predominantly wave-fixed mechanism. There is also a lack of published data on the repeatability of the two components when separated. One aim of this study was therefore to identify the wave-fixed and place-fixed components of the 2F1-F2 DPOAE using a time-window separation method. The second aim was to quantify the test-retest repeatability of the separated 2F1-F2 DPOAE components in a group of normally hearing subjects. Results confirmed the presence of wave-fixed and place-fixed components for 2F1-F2 and a predominance of place- or wave-fixed DPOAE as a function of frequency ratio. This pattern varied somewhat among subjects. Moreover, regardless of which component was stronger for any F2/F1, both components were highly repeatable across time within individual ears.
|MeSH|, algorithms, artifacts, auditory perception, diagnosis, computer-assisted, hearing tests, humans, otoacoustic emissions, spontaneous, reference values, reproducibility of results, sensitivity and specificity
1424400325
2122-2125
IEEE Xplore
Parazzini, M.
45948c82-e33a-40df-a266-a614691f0434
Wilson, H.K.
7f2e766e-c481-4cc6-a796-7a858801170e
Bell, S.
91de0801-d2b7-44ba-8e8e-523e672aed8a
Tognola, G.
be08cf7c-8791-4e42-8f33-9f5ad65fd18a
Ravazzani, P.
4a6b2823-3c70-4220-8cef-4014b878ed35
Lutman, M.E.
add34340-3241-4346-a668-8f51fdea6692
Parazzini, M.
45948c82-e33a-40df-a266-a614691f0434
Wilson, H.K.
7f2e766e-c481-4cc6-a796-7a858801170e
Bell, S.
91de0801-d2b7-44ba-8e8e-523e672aed8a
Tognola, G.
be08cf7c-8791-4e42-8f33-9f5ad65fd18a
Ravazzani, P.
4a6b2823-3c70-4220-8cef-4014b878ed35
Lutman, M.E.
add34340-3241-4346-a668-8f51fdea6692

Parazzini, M., Wilson, H.K., Bell, S., Tognola, G., Ravazzani, P. and Lutman, M.E. (2006) The generation mechanisms and repeatability of 2F1-F2 distortion product otoacoustic emissions: study on normally hearing subjects. In 2006 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE Conference Proceedings). IEEE Xplore. pp. 2122-2125 . (doi:10.1109/IEMBS.2006.259278).

Record type: Conference or Workshop Item (Paper)

Abstract

The 2F1-F2 distortion product otoacoustic emission (DPOAE) is considered to consist of two generation mechanisms, the so-called place-fixed and wave-fixed mechanisms, depending on the frequency ratio F2/F1. The general assumption is that for a small frequency ratio there is a predominantly place-fixed emission mechanism, while with a larger frequency ratio there is a predominantly wave-fixed mechanism. There is also a lack of published data on the repeatability of the two components when separated. One aim of this study was therefore to identify the wave-fixed and place-fixed components of the 2F1-F2 DPOAE using a time-window separation method. The second aim was to quantify the test-retest repeatability of the separated 2F1-F2 DPOAE components in a group of normally hearing subjects. Results confirmed the presence of wave-fixed and place-fixed components for 2F1-F2 and a predominance of place- or wave-fixed DPOAE as a function of frequency ratio. This pattern varied somewhat among subjects. Moreover, regardless of which component was stronger for any F2/F1, both components were highly repeatable across time within individual ears.

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More information

Published date: September 2006
Venue - Dates: 28th Annual International Conference of the IEEE. Engineering in Medicine and Biology Society, 2006 (EMBS '06), 2006-08-30 - 2006-09-03
Keywords: |MeSH|, algorithms, artifacts, auditory perception, diagnosis, computer-assisted, hearing tests, humans, otoacoustic emissions, spontaneous, reference values, reproducibility of results, sensitivity and specificity
Organisations: Human Sciences Group

Identifiers

Local EPrints ID: 57816
URI: http://eprints.soton.ac.uk/id/eprint/57816
ISBN: 1424400325
PURE UUID: 2181ff5d-cd8d-4f33-9ed2-5a281e2c4273

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Date deposited: 13 Aug 2008
Last modified: 13 Mar 2019 20:33

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