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Clinical applications of transcranial bone conduction attenuation in children

Published online by Cambridge University Press:  29 June 2007

Iyngaran Vanniasegaram*
Affiliation:
Department of Audiology, Hospital for Sick Children, Great Ormond Street, London WC1N 3JH
Jane Bradley
Affiliation:
Department of Audiology, Hospital for Sick Children, Great Ormond Street, London WC1N 3JH
Sue Bellman
Affiliation:
Department of Audiology, Hospital for Sick Children, Great Ormond Street, London WC1N 3JH
*
Dr I. Vanniasegaram. Department of Audiology, Hospital for Sick Children, Great Ormond Street, London WCIN 3JH

Abstract

It is a common belief that there is no significant transcranial attenuation across the skull by bone conduction (BC). In 32 children with proven unilateral sensorineural hearing loss the unmasked bone thresholds were measured on each side. There was a significant attenuation of BC at 4 kHz. Transcranial attenuation of BC at 4 kHz may explain the difference in sound perception between the two ears when bone conduction amplification is used. Further research should be undertaken to identify the better cochlea in mixed hearing losses.

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 1994

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