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Auditory cortical activation and speech perception in cochlear implant users

Published online by Cambridge University Press:  22 May 2007

K M J Green ,
P J Julyan ,
D L Hastings  and
R T Ramsden
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Abstract

Cochlear implantation is generally accepted as a successful means of restoring auditory sensation to profoundly deaf individuals. Although most patients can expect a satisfactory outcome following implantation, some have poor speech perception outcomes. This investigation used [18F]-fluorodeoxyglucose positron emission tomography to measure cortical activity resulting from auditory stimulation in seven ‘good’ and four ‘poor’ cochlear implant recipients. Activations were significantly greater in both the primary and association cortices in the good compared with the poor implant users. We suggest that the ability to access the more specialised speech processing abilities of the auditory association cortices helps determine outcome following cochlear implantation.

Keywords

Cochlear ImplantsPositron Emission TomographyOutcome AssessmentSensorineural Deafness
Type
Research Article
Information
The Journal of Laryngology & Otology , Volume 122 , Issue 3 , March 2008 , pp. 238 - 245
Copyright
Copyright © JLO (1984) Limited 2007

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