Summary
Schizophrenic patients and patients with schizotypal personality disorder were significantly more likely than normal controls to demonstrate impaired eye tracking performance. Fifteen of 27 schizophrenics and 15 of 27 schizotypals had impaired eye tracking, compared with 11 of 39 normal controls. In the schizophrenic group, including 10 out-patients in a stable state of relative remission, impaired eye tracking was associated with more severe formal thought disorder and more time spent in psychiatric hospitals. Among stable schizophrenic out-patients, poor eye tracking was related to more severe formal thought disorder and greater overall psychopathology. This pattern of results suggests a possible relation between eye tracking impairment and more severe enduring symptoms across the spectrum of schizophrenic and schizophrenia-related disorders.
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Keefe, R.S.E., Siever, L.J., Mohs, R.C. et al. Eye tracking, schizophrenic symptoms, and schizotypal personality disorder. Eur Arch Psychiatr Neurol Sci 239, 39–42 (1989). https://doi.org/10.1007/BF01739742
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DOI: https://doi.org/10.1007/BF01739742