[Electrical responses of the eye and optic nerve of the pond snail Lymnaea stagnalis].

The electrophysiological method was used to obtain the electrical responses to light stimulation of the eye-optic nerve preparations in the pond snail Lymnaea stagnalis. The responses were recorded from the optic nerve with paired platinum wire electrodes. Typical eye response consisted of two waves - first (I) and second (II) components, sinusoidal oscillations and impulse activity with on-effect. There are no off-responses in visual system of Lymnaea stagnalis.