Horizontal eye movements of schizophrenics were recorded while they viewed 3 different stimuli in succession and they were administered the Ullmann-Giovannoni process-reactive scale. The schizophrenics' eye movements were consistent across stimulus conditions (rho = .63, .88, .81) and the eye movements in each condition were related to the process-reactive measure (rho = .64, .72, .64), reactives having more eye movements.
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