[Effects of sinusoidal transmembrane currents on the electrical parameters of neurons].

The transmembrane resistance of molluscan neurons falls with increasing of sinusoidal current frequency from 0.1 to 10.0 Hz owing to the capacity properties of cell's membrane. Consequently, the low--frequency current of the same intensity is more effective. Transmembrane sinusoidal current can induce either hyperpolarization or depolarization of different neurons, apparently depending on the current--voltage relations in the membrane of these neurons. Sinusoidal current of low intensity can selectively increase the underthreshold rhythmic activity of neurons up to generation of action potentials at the frequency of neuron's own activity.