[Effect of sensory input parameters on efferent output of spike activity of river crayfish neurons].

Studies have been made of the influence of localization, direction, frequency and other parameters of mechanostimulation of the cuticular receptors on the impulse activity of efferent neurones innervating claw muscles in the crayfish Astacus astacus and A. leptodactylus. The results obtained are discussed from a standpoint of the possibility of central organization of sensory-motor relationships, which involves modulating afferent influences on efferent neuronal activity.