[Reactions of the ampullae of Lorenzini of the skate to electric stimulation after polarization of the receptor epithelium].

Responses of electrically insulated Lorentzinian ampullae to d. c. pulses were studied on skates Raja clavata in the course of polarization of receptor epithelium. With negative polarization of -4 divided by -6 mV reversed changes in spike frequency (acceleration to anodal and inhibition to cathodal pulses) appeared practically without loss of sensitivity, the course of adaptation being unchanged. The data are in accordance with the model described previously suggesting stationary N-shaped voltage-current relation of receptor cell apical membrane.