Lumped-parameter model for in vivo cochlear stimulation

1 March 1993

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Biomedical Engineering

Vol. 40 (3) , 237-245
https://doi.org/10.1109/10.216407

Abstract

This paper presents a lumped-parameter model that stimulates the in vivo electrical properties of a guinea pig cochlea implanted with a multielectrode stimulating array. A basic model of the low-frequency electroanatomy in a normally functioning guinea pig cochlea is developed by adding critical membrane capacitances to Strelioff's resistive network model [1]. The basic model of normal cochlear tissues is modified to account for anatomical and physiological differences between a normal and implanted cochlea, which results in an impedance model of an implanted cochlea. Simulating the results of in vivo cochlear stimulation verifies the accuracy with which the modified cochlear model represents electrical properties within an electrically stimulated cochlea. Generalized simulations using this model suggest a straightforward phasing scheme capable of achieving sharply focused, channel-independent multielectrode cochlear stimulation.

Keywords

This publication has 6 references indexed in Scilit:

Sound processing for cochlear implant
Published by Institute of Electrical and Electronics Engineers (IEEE) ,2005
Pitch perception by cochlear implant subjects
The Journal of the Acoustical Society of America, 1987
DESIGN AND FABRICATION OF MULTIWIRE SCALA TYMPANI ELECTRODESa
Annals of the New York Academy of Sciences, 1983
DESIGN AND FABRICATION OF THE BANDED ELECTRODE ARRAYa
Annals of the New York Academy of Sciences, 1983
A computer simulation of the generation and distribution of cochlear potentials
The Journal of the Acoustical Society of America, 1973
Electric network effects in the cochlea
The Journal of the Acoustical Society of America, 1973