In their study, Chen et al1 presented new data concerning motion perception disturbances in schizophrenia. Using contrast sensitivity measurements in different experimental paradigms, the authors demonstrated that patients with schizophrenia displayed a specific deficit of motion perception, whereas other visual functions, such as orientation and contrast detection, were preserved. However, the question of medication was not addressed in this study, which makes the final interpretation difficult.
Kéri S, Antal A, Benedek G, Janka Z. Contrast Detection in Schizophrenia. Arch Gen Psychiatry. 2000;57(10):995. doi:10.1001/archpsyc.57.10.995
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