Influence of leakage currents on the formation of electrical pulse to stimulate the vestibular nerve | Izvestiya vuzov. Fizika. 2019. № 12. DOI: 10.17223/00213411/62/12/63

Influence of leakage currents on the formation of electrical pulse to stimulate the vestibular nerve

A theoretical and experimental study of the frequency dependence of the amplitude-phase characteristics of the stimulating signal for the vestibular nerve and its changes during passage from stimulating electrodes to the end of the vestibular nerve is carried out. To assess the influence of leakage currents on the change in the stimulating current pulse, a physical and mathematical model of the vestibular organ and the electrical processes occurring in its tissues was developed based on experimental data on the electrophysical and anatomical characteristics of the tissues of the vestibular labyrinth using the example of a guinea pig. The calculations and measurements of the frequency dependence of the amplitude-phase characteristics of the stimulating signal at a recording electrode located in the ganglion of Scarp are performed. It was established that the influence of leakage currents on the signal amplitude at the recording electrode is significant in the entire considered frequency range. Compensation of the influence of leakage currents will improve the quality of the stimulating signal and increase the transfer function of the vestibular implant.

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Keywords

электрический ток, импеданс биологических тканей, электрическая модель, вестибулярный лабиринт, вестибулярный имплант, токи утечки, передаточная функция, electric current, impedance of biological tissues, electric model, vestibular labyrinth, vestibular implant, leakage currents, transfer function

Authors

Name	Organization	E-mail
Demkin V.P.	National Research Tomsk State University	demkin@ido.tsu.ru
Kingma H.	National Research Tomsk State University	hermanuskingma@gmail.com
Melnichuk S.V.	National Research Tomsk State University	osbereg@yandex.ru
Svetlik M.V.	National Research Tomsk State University	mihasv@rambler.ru
Rudenko T.V.	National Research Tomsk State University	rudenko@ido.tsu.ru
Akinina M.D.	National Research Tomsk State University	maakin1993@yandex.ru
Suyundukova A.T.	National Research Tomsk State University	almagul.suyundukova@mail.ru

Всего: 7

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