Abstract:Background and aims: Different neuropsychological studies have consistently found an attention, memory and executive function deficit in schizophrenic patients. The Positive and Negative Syndrome Scale (PANSS) evaluates different clinical aspects of schizophrenia. Factor analyses of this scale suggest the existence of a ''cognitive factor'', constituted by several items pertaining to the different subscales. In order to have an acceptable concurrent validity, this ''cognitive factor'' should correlate with the… Show more
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