Smooth-pursuit eye-movement dysfunction and motor control in schizophrenia: a follow-up study.
Smooth-pursuit eye-tracking data of 63 schizophrenic patients and 52 normal controls are presented and compared with data collected on the same subjects 2 years earlier. Despite considerable clinical stabilization of the patients the overall eye-tracking performance did not improve. Intrasubject stability over 2 years was moderate. Eye-tracking impairment was significantly correlated with number of psychomotor soft signs and with number of errors in an antisaccade task. The correlations indicate that impairment of smooth-pursuit eye movements is likely to be a consequence of deficient motor control.
Schlenker
R
R
Department of Psychology, University of Konstanz, Germany.
Cohen
R
R
D000328:Adult; D001288:Attention; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D011596:Psychomotor Disorders / Q000209:etiology*; D012438:Saccades; D012559:Schizophrenia / Q000150:complications*