Journal article

A Channel Model for Inferring the Optimal Number of Electrodes for Future Cochlear Implants

Mark D McDonnell, Anthony N Burkitt, David B Grayden, Hamish Meffin, Alex J Grant

IEEE TRANSACTIONS ON INFORMATION THEORY | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | Published : 2010

Abstract

Cochlear implants, also known as bionic ears, are surgically implanted biomedical devices that can provide hearing to some deaf people by direct electrical stimulation of the auditory nerve. A crucial question for the design of future cochlear implants is that of how many electrodes might achieve optimal hearing performance in patients. It is efficient to avoid using more electrodes if this does not provide a performance improvement. Whether an improvement can be gained by inclusion of more electrodes depends crucially on physical properties such as distance of the electrode array from the auditory nerve and current spread. The response of individual fibers in the auditory nerve to electrica..

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Grants

Awarded by Australian Research Council


Funding Acknowledgements

The work of M. D. McDonnell was supported by an Australian Research Council Post Doctoral Fellowship (DP0770747). The Bionic Ear Institute acknowledges the support it receives from the Victorian Government through its Operational Infrastructure Support Program.