Antisaccades and Smooth Pursuit Eye Tracking and Schizotypy

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Abstract
IN POPULATIONS at increased risk for schizophrenia, a notable proportion of individuals show abnormalities on cognitive, perceptual, or motor tasks—abnormalities that are similar to those found in schizophrenic patients. At-risk populations also have elevated scores on subclinical symptoms related to schizophrenia, such as thought disorder, abnormal perceptual experiences, and social withdrawal.1,2 The behavioral and perceptual anomalies that occur at higher rates in populations at risk for schizophrenia have been called "behavioral markers" of latent liability to the disorder.3 These markers are the subject of extensive study, both because they may enhance the power of genetic studies of schizophrenia, and because an understanding of their neural basis may elucidate the nature of brain abnormalities relevant to schizophrenia.