[Various responses of neurons of the caudate nucleus in alert cats to visual stimulation]

Activity of sixty two neurons of the caudate nucleus to the visual stimuli were recorded in awake cats. It was found that most (52%) of tested neurons gave visual responses of sensory type evoked by the appearance of light stimulus in the visual field and only 11% of them were of the motor type related to the guided eye movement to the target. About a quarter of neurons responded to biologically significant objects revealing nonspecific responses. Several types of visual responses could be recorded from the same neuron. The data obtained permit supposing the presence of several parallel pathways for afferent visual influences on the caudate nucleus.