thalamic syndrome [Gk, thalamos + syn, together, dromos, course] , a vascular disorder involving the ventral and posterolateral nuclei of the thalamus and related nerve fibers. It causes disturbances of sensation and partial or complete paralysis of one side of the body. A major effect is an increased threshold to all stimuli on the opposite side of the body so that any stimuli may cause an exaggerated response. Also called Dejerine-Roussy syndrome.
