Inferring the dynamic range of electrode current by using an information theoretic model of cochlear implant stimulation

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dc.contributor.authorGao, X.
dc.contributor.authorGraydeny, D.
dc.contributor.authorMcDonnell, M.
dc.contributor.conferenceIEEE Information Theory Workshop (ITW 2014) (2 Nov 2014 - 5 Nov 2014 : Hobart, AUSTRALIA)
dc.date.issued2014
dc.description.abstractInformation theory has been used in estimating the performance of cochlear implants, which restore partial hearing to people by replacing the function of missing inner hair cells with an electrode array. Previous work has already developed a channel model of the electrode-neural interface in which the channel input is defined as the choice of electrodes and the channel output is defined as the normalized location of all active auditory nerve fibers. This model enables prediction of the optimal number of electrodes for cochlear implants by calculating the mutual information between channel input and channel output. In this paper, we calculate the mutual information with a varied model parameter, in particular, the electrode current. First, we investigate to what extent the different electrode current levels impact on the performance of the modeling framework. Then we estimate the dynamic range of electrode current based on the mutual information calculation. The results in this paper may provide a theoretical guide for optimizing stimulation strategies for future users of cochlear implants.
dc.description.statementofresponsibilityXiao Gao, David B. Graydeny, and Mark D. McDonnell
dc.identifier.citationProceedings of the IEEE Information Theory Workshop (ITW 2014), 2014, pp.346-350
dc.identifier.doi10.1109/ITW.2014.6970851
dc.identifier.isbn9781479959990
dc.identifier.issn1662-9019
dc.identifier.issn2475-420X
dc.identifier.orcidMcDonnell, M. [0000-0002-7009-3869]
dc.identifier.urihttp://hdl.handle.net/2440/111205
dc.language.isoen
dc.publisherIEEE
dc.publisher.placePiscataway, NJ
dc.relation.granthttp://purl.org/au-research/grants/arc/DP1093425
dc.relation.ispartofseriesInformation Theory Workshop
dc.rights©2014 IEEE
dc.source.urihttps://www.ieee.org/conferences_events/conferences/conferencedetails/index.html?Conf_ID=32406
dc.titleInferring the dynamic range of electrode current by using an information theoretic model of cochlear implant stimulation
dc.typeConference paper
pubs.publication-statusPublished

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