[Role of retinal projections to the rostral thalamus in the perception of stationary objects in frogs].

The round of stationary obstacles demanding localizing and definition of objects, was restored within 12--17 days after cutting of both optic nerves in Rana temporaria. Electrophysiological data indicated the restoration of connection between the retina and rostral thalamic nuclei by this time. The on-type impulse reactions to light stimuli in retinal ganglionic cell endings were observed. Retino-tectal connections were still disrupted. The role of retino-diencephalic projections in organization of the frog visually guided behaviour, is discussed.