Saccadic eye movements in idiopathic blepharospasm.
Visually guided saccades, memory-contingent saccades, and antisaccades were studied with an infra-red reflection technique in 12 patients with idiopathic blepharospasm and in controls. Latencies of the three kinds of saccades were prolonged. Peak velocities and gains did not differ. Our results indicate an initiation defect in the saccadic system, which may be localized in the caudate nucleus.
Bollen
E
E
Department of Neurology and Clinical Neurophysiology, University Hospital Leiden, The Netherlands.
Van Exel
E
E
van der Velde
E A
EA
Buytels
P
P
Bastiaanse
J
J
van Dijk
J G
JG
D000328:Adult; D000368:Aged; D001764:Blepharospasm / Q000209:etiology / Q000503:physiopathology*; D002421:Caudate Nucleus / Q000503:physiopathology; D005260:Female; D007839:Functional Laterality / Q000502:physiology; D006801:Humans; D008297:Male; D011939:Mental Recall / Q000502:physiology; D008875:Middle Aged; D011930:Reaction Time / Q000502:physiology; D012018:Reflex / Q000502:physiology; D012438:Saccades / Q000502:physiology*