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Article |

Identification of Abnormal Patterns in Eye Movements of Schizophrenic Patients

Smadar Levin, PhD; Ashby Jones, OD, MS; Lawrence Stark, MD; Edward L. Merrin, MD; Philip S. Holzman, PhD
Arch Gen Psychiatry. 1982;39(10):1125-1130. doi:10.1001/archpsyc.1982.04290100005002.
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• Using precise infrared recording instrumentation, we measured the eye-movement patterns in six schizophrenic patients who were taking medication and found saccadic intrusions and saccadic smooth-pursuit tracking in three. This defined some of the eye-movement irregularities reported previously by many investigators. A variety of eye-movement functions in addition to smooth pursuit exhibited these abnormalities, including fixation, vergence, and head-eye pursuit. Saccadic intrusions or saccadic pursuit also occurs in a number of neuro-ophthalmologic disorders, and occasionally In healthy normal subjects. Thus, these eye-movement abnormalities do not occur exclusively in schizophrenia.


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