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  • Title: Identifying attentional deficits in people with first-episode psychosis with the Scale for the Assessment of Negative Symptoms attention subscale: is it possible?
    Author: González-Blanch C, Priede A, Rodríguez-Sánchez JM, Perez-Iglesias R, Vázquez-Barquero JL, Crespo-Facorro B.
    Journal: Compr Psychiatry; 2012 Aug; 53(6):701-5. PubMed ID: 22206803.
    Abstract:
    OBJECTIVE: The aim of this study was to examine the correspondence between clinical ratings of inattention problems in the early course of a psychotic disorder and concurrent neuropsychological data for sustained attention and speed of processing/executive functioning (SP/EF) derived from a comprehensive neuropsychological test battery. METHOD: A sample of 131 patients with first-episode psychosis (FEP) was clinically rated after clinical stabilization with the attention subscale of the Scale for the Assessment of Negative Symptoms (SANS) and a completed neuropsychological test battery, which included measurements of sustained attention and SP/EF. To test the associations of the clinical ratings and objective data, correlations and regression analyses were conducted. RESULTS: Clinical ratings of inattention showed only weak correlations with the global score of SP/EF and with the clinical ratings of negative symptoms (ρ < 0.25). None of the independent variables entered in the logistic regression model were significant (all P values > .05). Percentages of agreement between clinical judgment and neuropsychological measures were unacceptably low (ranged from 53% to 68%). κ values indicate only slight agreement (κ < 0.2). CONCLUSIONS: Clinical ratings based on the SANS attention subscale do not reliably match neuropsychological test measures of attention or other related cognitive processes in FEP. Even for those cognitive domains more pronouncedly impaired, mental health professionals will likely need to rely on psychometric testing or, alternatively, specific guidelines and also, probably, to collect data from different sources to adequately identify cognitive impairments.
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