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Effects of mobile phone exposure on time frequency fine structure of transiently evoked otoacoustic emissions

Effects of mobile phone exposure on time frequency fine structure of transiently evoked otoacoustic emissions
Effects of mobile phone exposure on time frequency fine structure of transiently evoked otoacoustic emissions
Mobile phones have become very commonly used worldwide within a short period of time. To date there is only limited knowledge about interaction between electromagnetic fields (EMFs) emitted by mobile phones and the auditory function. Moreover, there is widespread concern that there may be potential for harm. The aim of this study was to assess potential subtle changes in cochlear function by measuring the temporal and spectral fine structure of transiently evoked otoacoustic emissions (TEOAE) in normal hearing subjects after exposure to EMFs emitted by Global System for Mobile Communication (GSM) mobile phones. TEOAEs were recorded in 27 healthy young adults before and after 10 min of real or sham exposure in a double-blind design. TEOAE data were analyzed both globally (broadband analysis) and using the Wavelet Transform (analysis of the time-frequency fine structure). The broadband analysis revealed no significant effect on TEOAEs related to exposure, confirming results of previous studies; in addition, no significant change was detected in the analysis of the elementary wavelet components, suggesting that the temporal and spectral fine structure of TEOAEs is not affected by 10 min exposure to low-intensity EMFs emitted by GSM mobile phones.
0001-4966
2174-2182
Paglialonga, A.
8132a187-8b52-4fcd-8fb1-8573bdab1b5f
Tognola, G.
be08cf7c-8791-4e42-8f33-9f5ad65fd18a
Parazzini, M.
45948c82-e33a-40df-a266-a614691f0434
Lutman, M.E.
Bell, S.L.
91de0801-d2b7-44ba-8e8e-523e672aed8a
Thuroczy, G.
3ab8ac73-4ef6-4642-98dd-f11eb13ea85c
Ravazzani, P.
4a6b2823-3c70-4220-8cef-4014b878ed35
Paglialonga, A.
8132a187-8b52-4fcd-8fb1-8573bdab1b5f
Tognola, G.
be08cf7c-8791-4e42-8f33-9f5ad65fd18a
Parazzini, M.
45948c82-e33a-40df-a266-a614691f0434
Lutman, M.E.
Bell, S.L.
91de0801-d2b7-44ba-8e8e-523e672aed8a
Thuroczy, G.
3ab8ac73-4ef6-4642-98dd-f11eb13ea85c
Ravazzani, P.
4a6b2823-3c70-4220-8cef-4014b878ed35

Paglialonga, A., Tognola, G., Parazzini, M., Lutman, M.E., Bell, S.L., Thuroczy, G. and Ravazzani, P. (2007) Effects of mobile phone exposure on time frequency fine structure of transiently evoked otoacoustic emissions. Journal of the Acoustical Society of America, 122 (4), 2174-2182. (doi:10.1121/1.2773944).

Record type: Article

Abstract

Mobile phones have become very commonly used worldwide within a short period of time. To date there is only limited knowledge about interaction between electromagnetic fields (EMFs) emitted by mobile phones and the auditory function. Moreover, there is widespread concern that there may be potential for harm. The aim of this study was to assess potential subtle changes in cochlear function by measuring the temporal and spectral fine structure of transiently evoked otoacoustic emissions (TEOAE) in normal hearing subjects after exposure to EMFs emitted by Global System for Mobile Communication (GSM) mobile phones. TEOAEs were recorded in 27 healthy young adults before and after 10 min of real or sham exposure in a double-blind design. TEOAE data were analyzed both globally (broadband analysis) and using the Wavelet Transform (analysis of the time-frequency fine structure). The broadband analysis revealed no significant effect on TEOAEs related to exposure, confirming results of previous studies; in addition, no significant change was detected in the analysis of the elementary wavelet components, suggesting that the temporal and spectral fine structure of TEOAEs is not affected by 10 min exposure to low-intensity EMFs emitted by GSM mobile phones.

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More information

Published date: October 2007
Organisations: Human Sciences Group

Identifiers

Local EPrints ID: 49589
URI: http://eprints.soton.ac.uk/id/eprint/49589
ISSN: 0001-4966
PURE UUID: 06cb44c1-fbf8-45a8-8756-f6789b2575e6

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Date deposited: 20 Nov 2007
Last modified: 15 Mar 2024 09:57

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Contributors

Author: A. Paglialonga
Author: G. Tognola
Author: M. Parazzini
Author: M.E. Lutman
Author: S.L. Bell
Author: G. Thuroczy
Author: P. Ravazzani

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