V.N. Chikhman1, S.D. Solnushkin2, V.O. Molodtsov3, V.Y. Smirnov4,
O.A. Lyubashina5, I.B. Sivachenko6

1,2,5,6 Pavlov Institute of Physiology, Russian Academy of Sciences (St.-Petersburg, Russia)

3,4 St. Petersburg State Electrotechnical University "LETI" named after V. I. Ulyanov (Lenin) (St.-Petersburg, Russia)