CHARACTERISTICS OF OCULAR MOVEMENTS EVOKED BY STIMULATION OF BRAINSTEM OF CAT

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Abstract
Eye movements obtained by electrical stimulation of tectal and 3 tegmental areas in the feline encephale isole are goal-directed; their velocity has characteristics of phasic movements. Responses to similar stimulation at the pretectal level show less goal-direction and have velocity functions of tonic movements. Variations of ocular routes from one initial to one final position, together with features of movements after release of stimulation, suggest that evoked ocular movements require neuronal interactions in addition to the activity imposed by the stimulating current.