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. 2015 Aug 26;1:15030. doi: 10.1038/npjschz.2015.30

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Copyright © 2015 Schizophrenia International Research Group/Nature Publishing Group

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Correlations of text features and clinical ratings (top panel) and between positive (sips-A) and negative (sips-B) symptoms (bottom panel). Upper panel: canonical correlation between the text features, and the Structured Interview for Prodromal Syndromes (SIPS) features. Lower panel: scatter-plot of A_total and B_total shows no association between subthreshold psychotic symptoms and negative symptoms. In both panels, clinical high risk− (CHR−) and CHR+ are labeled with blue and red dots, respectively. For the analysis, all features were centered and normalized.