Abstract
Design: Speech-ABRs were recorded to a 40 ms [da] presented via loudspeaker using a two-channel electrode montage. Additionally, artefacts were recorded using an artificial-head incorporating a MED-EL cochlear implant with stimulation parameters as similar as possible to those of three MED-EL participants. A single-channel artefact removal technique was applied to all responses.
Study sample: 12 adult cochlear implant recipients (6 Cochlear Nucleus and 6 MED-EL cochlear implants).
Results: Responses differed according to the cochlear implant type, artefact removal resulted in responses containing speech-ARB characteristics in two MED-EL cochlear implant participants; however, it was not possible to verify whether these were true responses or were modulated by artefacts, and artefact removal was successful from the artificial-head recordings.
Conclusions: This is the first study that attempted to record speech-ABRs from cochlear implant recipients. Results suggest that there is a potential for application of a single-channel approach to artefact removal. However, a more robust and adaptive approach to artefact removal that includes a method to verify true responses is needed.
Original language | English |
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Journal | International Journal of Audiology |
DOIs | |
Publication status | Published - 27 May 2019 |
Keywords
- Speech-ABR
- Cochlear Implant
- Cochlear Implant Artefact
- ochlear Implant Artefact Removal
- ABRs in Cochlear Implants
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Manchester Centre for Audiology and Deafness (ManCAD)
Munro, K. (PI), Millman, R. (PI), Lamb, W. (Support team), Dawes, P. (PI), Plack, C. (PI), Stone, M. (PI), Kluk-De Kort, K. (PI), Moore, D. (PI), Morton, C. (PI), Prendergast, G. (PI), Couth, S. (PI), Schlittenlacher, J. (PI), Chilton, H. (PI), Visram, A. (Researcher), Dillon, H. (PI), Guest, H. (Researcher), Heinrich, A. (PI), Jackson, I. (Researcher), Littlejohn, J. (Researcher), Jones, L. (PI), Lough, M. (Researcher), Morgan, R. (Researcher), Perugia, E. (Researcher), Roughley, A. (Researcher), Whiston, H. (Researcher), Wright, C. (Support team), Saunders, G. (PI), Kelly, C. (PI), Cross, H. (Researcher), Loughran, M. (Researcher), Hoseinabadi, R. (PI) & Vercammen, C. (PI)
Project: Research