Electrophysiological Properties of Rat Vestibular Labyrinth and Their Effect on Parameters of Transmitted Voltage Pulses

V. P. Demkin; V. V. Udut; P. P. Shchetinin; M. V. Svetlik; S. V. Mel’nichuk; A. P. Shchetinina; M. O. Pleshkov; D. N. Starkov; O. V. Demkin; H. Kingma

doi:10.1007/s10517-018-4063-4

Electrophysiological Properties of Rat Vestibular Labyrinth and Their Effect on Parameters of Transmitted Voltage Pulses

Autores: Demkin V.¹, Udut V.¹^,2, Shchetinin P.¹, Svetlik M.¹, Mel’nichuk S.¹, Shchetinina A.¹, Pleshkov M.¹, Starkov D.¹, Demkin O.¹, Kingma H.¹^,3
Afiliações:
1. National Research Tomsk State University
2. E. D. Goldberg Research Institute of Pharmacology and Regenerative Medicine, Tomsk National Research Medical Center, Russian Academy of Sciences
3. Department of Otorhinolaryngology and Head and Neck Surgery, Division of Balance Disorders, Faculty of Health Medicine and Life Sciences, Maastricht University Medical Center, School for Mental Health and Neuroscience
Edição: Volume 164, Nº 6 (2018)
Páginas: 707-711
Seção: Article
URL: https://journals.rcsi.science/0007-4888/article/view/239870
DOI: https://doi.org/10.1007/s10517-018-4063-4
ID: 239870

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Resumo

We propose a new approach to optimization of electrical stimulation of the vestibular nerve and improving the transfer function of vestibular implant. A mathematical model of the vestibular organ is developed based on its anatomy, the model premises, 3D-analysis of MRI and CT images, and mathematical description of physical processes underlying propagation of alternating electric current across the tissues of vestibular labyrinth. This approach was tested in vitro on the rat vestibular apparatus and had been examined anatomically prior to the development of its mathematical model and equivalent electrical circuit. The experimental and theoretical values of changes of the gain—phase characteristics of vestibular tissues in relation to location of the reference electrode obtained in this study can be used to optimize the electrical stimulation of vestibular nerve.