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The relationship between theory of mind deficits and neurocognition in first episode-psychosis
Ana Catalan1, Virxinia Angosto2, Aida Díaz2
1Department of Neuroscience, University of the Basque Country, Basque Country, Leioa, Spain; Department of Psychiatry, Basurto University Hospital, Bilbao, Spain; Mental Health Group, BioCruces Health Research Institute. Plaza de Cruces 12, Barakaldo, Bizkaia 48903, Spain.
Abstract:
Research suggests that theory of mind (ToM) deficits are related to chronic psychosis and to first-episode psychosis (FEP) independently of other neurocognition domains. The aim of this study was to measure the differences in ToM area in a Spanish population of FEP sample (N = 32) and in a healthy control group (N = 32). A further aim was to describe the relationship between different domains of neurocognition, psychotic symptoms and social functioning with ToM in this sample. ToM was assessed with the MASC task. Estimated IQ with a short version of the WAIS III, Rey-Osterrieth Complex figure, Trail Making Test, Stroop test and Wisconsin Carting Sorting test were used to assess neurocognition. Psychotic symptoms were assessed with Community Assessment of Psychic Experiences (CAPE) in both groups and with PANSS scale in FEP group. GAF and Cannon-Spoor scales were used to measure social functioning before and after onset of psychosis. FEP showed important deficits in ToM domain compared to controls. A worse executive functioning was associated with worse scores in ToM task. However, no relation was found between positive or negative psychotic symptoms and ToM or social functioning and ToM. In our sample neurocognition tests were strongly related to ToM domain independently of other variables.
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