LXVIII Central Nystagmus in the Cat

Abstract

Using chronic electrode implantation, electrical stimulation of the meso-diencephalon of the cat produced central nystagmus. The sensitive area of the diencephalon is described and histologically demonstrated. The nystagmus was generally away from the side of implantation. Optokinetic or vestibular stimulation altered or was altered by central nystagmus. There was no apparent effect on equilibrium, by stimulation of the nystagmogenic area, with nystagmus production. The described responses are compared with a previously reported phenomenon in the rabbit.