Delusion formation and reasoning biases in those at clinical high risk for psychosis.
BACKGROUND: Cognitive models propose that faulty appraisal of anomalous experiences is critical in developing psychosis, particularly delusions. A data gathering bias may be fundamental to abnormal appraisal. AIMS: To examine whether there is a data gathering bias in people at high risk of developing psychosis. METHOD: Individuals with an at-risk mental state (n=35) were compared with a matched group of healthy volunteers (n=23). Participants were tested using a modified version of the 'bead...Expand abstract
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