Title :
A method for determining the driving currents for focused stimulation in the cochlea
Author :
Rodenhiser, Kristin L. ; Spelman, Francis A.
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
fDate :
4/1/1995 12:00:00 AM
Abstract :
A pseudo-inverse technique has been applied to a lumped-element model of the first turn of an implanted cochlea of a guinea pig. The method calculates the currents necessary to focus or distribute stimuli in desired patterns across the location of the family of auditory nerve cells in the implanted ear. Studies in animals are being undertaken to validate the technique.
Keywords :
bioelectric phenomena; ear; hearing aids; physiological models; auditory nerve cells family; auditory system implants; desired patterns; driving currents determination method; focused stimulation; implanted cochlea first turn; inner ear; lumped-element model; pseudo-inverse technique; stimuli distribution; validating animal studies; Animals; Current density; Deafness; Ear; Electrodes; Inverse problems; Neural prosthesis; Phased arrays; Prosthetics; Psychology; Animals; Cochlear Implants; Electric Stimulation Therapy; Evaluation Studies as Topic; Guinea Pigs; Least-Squares Analysis; Membrane Potentials; Models, Neurological; Sensitivity and Specificity; Vestibulocochlear Nerve;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
