Correlation between speech perception and electrically-evoked auditory potentials measured in subjects with Auditory Neuropathy after cochlear implantation

Catherine M. McMahon, Karen M. Bate, William P. R. Gibson, Halit Sanli

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution

Abstract

Cochlear implantation is considered an effective management option for children diagnosed with auditory neuropathy. It is assumed that this is because, in most cases of auditory neuropathy, the lesion is located at the inner hair cells or the primary afferent synapse, rather than the auditory nerve per se. Previous studies reporting benefit in cochlear implantation in this population of subjects have assessed benefit using behavioural measures such as speech perception tests. In this study, we have assessed the benefit of cochlear implantation in subjects with AN using objective assessments including electrically-evoked auditory brainstem responses (ABR) and cortical auditory evoked potentials (CAEP) and have correlated this with subjective assessments of speech perception. Correlations between objective and subjective assessments demonstrate that the role of electrical stimulation in providing benefit is not simple. We show that there is no correlation between the electrically-evoked ABR and the electrically-evoked CAEP waveforms. Nor is there a correlation between the objective tests and speech perception abilities.
Original languageEnglish
Title of host publicationProgramme and book of abstracts / XX IERASG Biennial Symposium, Bled, Slovenia, June 10-14, 2007
EditorsDušan Butinar
Place of PublicationLjubljana
PublisherSlovene Society for Clinical Neurophysiology of the Slovene Medical Association
Pages76-76
Number of pages1
ISBN (Print)9789616456296
Publication statusPublished - 2007
EventInternational Evoked Response Audiometry Study Group Biennial Symposium (20th : 2007) - Bled, Slovenia
Duration: 10 Jun 200714 Jun 2007

Conference

ConferenceInternational Evoked Response Audiometry Study Group Biennial Symposium (20th : 2007)
CityBled, Slovenia
Period10/06/0714/06/07

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