A method for determining the driving currents for focused stimulation in the cochlea.
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.
Rodenhiser
K L
KL
Department of Electrical Engineering, University of Washington, Seattle 98195, USA.
Spelman
F A
FA
D000818:Animals; D003054:Cochlear Implants; D004599:Electric Stimulation Therapy / Q000379:methods*; D005069:Evaluation Studies as Topic; D006168:Guinea Pigs; D016018:Least-Squares Analysis; D008564:Membrane Potentials; D008959:Models, Neurological; D012680:Sensitivity and Specificity; D000159:Vestibulocochlear Nerve / Q000502:physiology*