Pursuit deficits in bilateral pulvinar lesions.

A 58-year-old man had bilateral pulvinar infarctions. The patient developed smooth pursuit deficits in both the horizontal and vertical directions, while metrics of saccadic eye movements were normal. The gain of optokinetic nystagmus was slightly reduced. These findings strongly support the idea that the efferent fibers from the cortical pursuit center pass through the pulvinar in the human brain, in the same manner as previously described in the monkey cerebrum.