[Participation of corticofugal transmissions in the formation of somatic evoked potentials in the caudate nucleus of monkeys].

Evoked potentials in monkey (Macaca rhesus) nucleus caudatus (chronic experiments) were facilitated when the peripheral stimuli were combined with the electrical stimulation of the cortex in the zone of the sensory projection of the stimulated extremities. These results suggest that the specialized somatic response is formed in n. Cd. by the ascending afferent volley and corticofugal one evoked by the same peripheral stimulus.