Abstract
Objective: The aim of this study was to assess the feasibility of recording speech-ABRs from cochlear implant recipients, and to remove the artefact using a clinically applicable single-channel approach.
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.
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 |
|---|---|
| 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., Millman, R., Lamb, W., Dawes, P., Plack, C., Stone, M., Kluk-De Kort, K., Moore, D., Morton, C., Prendergast, G., Couth, S., Schlittenlacher, J., Chilton, H., Visram, A., Dillon, H., Guest, H., Heinrich, A., Jackson, I., Littlejohn, J., Jones, L., Lough, M., Morgan, R., Perugia, E., Roughley, A., Short, A., Whiston, H., Wright, C., Saunders, G. & Kelly, C.
Project: Research