[Laterality of food handling movements in rats].

Lateralization of motor food skills has been investigated on 77 adult white rats. The predominance for the left anterior extremity while carrying out food was found in 53.5% of rats, the right extremity--in 36.

[Effect of interaural differences in acoustic stimulation on the neuronal activity of the red nucleus in the cat].

In anesthetized and immobilized cats, dichotic stimulation revealed a high sensitivity of red nucleus (RN) neurons to interaural difference in time (83% of neurons) and intensity (82% of neurons) of stimulation. Percentage of the NR neurons (71%) altering their their activity in response to signals simulating movements of the sound source in horizontal plane, was higher than in centers of the auditory system. Utilization of the acoustic information by the NR neurons for organization of movement elements of the localization behaviour, is discussed.

[Electrical responses of the red nucleus to acoustic stimulation].

Letency of evoked potentials (EPs) recorded in the anesthetized cat's magnocellular part of red nucleus varied from 3.5 to 4.5 msec on binuaural and contralateral stimulations.