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Cognition sociale et Schizophrénie : une approche centrée sur la personne à l’aide du Protocole d’Evaluation de la Cognition Sociale de Bordeaux (PECS-B)

Abstract : Social cognition has received a growing interest in clinical neuropsychology. This popularity can be explained by the transdiagnostic and negative outcome of social cognition disorders. However, this construct faces many difficulties, conceptual as well as methodological. Thus, concerning schizophrenia, data from the international literature is inconsistent. We hypothesize that these contradictions may be underpinned by: 1) a lack of consideration for the multidimensionality of social cognition, and 2) interindividual heterogeneity of functioning. The overall goal of this thesis was to explore and compare the social cognition functioning profiles in the general population with those for schizophrenia. To do this, a first step was devoted to a systematic review of studies that explored the factor structure of social cognition in clinical neuropsychology (Article 1). This review allowed the proposition of a two-dimensional model of social cognition, in which low and high-level processes cross affective and cognitive ones. A second step was to provide additional validation elements to the PECS-B, a social cognition assessment battery with seven tasks assessing five dimensions (Article 2). The results reported satisfactory psychometric qualities in the general population (N = 131) as well as in schizophrenia (N = 101). Finally, the third step was to carry out cluster analyses to explore interindividual heterogeneity in these same populations (Article 3). Three different profiles in the general population sample were highlighted, of which two were characterized by specific weaknesses. In contrast, the three profiles in the schizophrenia sample were characterized by three levels of social cognition functioning: good (similar to controls), medium and low. The last two levels were also characterized by alexithymic or neurocognitive difficulties. From an evidence-based practice perspective, these findings have important implications for both the assessment and the direction of therapeutic interventions.
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Aurore Etchepare. Cognition sociale et Schizophrénie : une approche centrée sur la personne à l’aide du Protocole d’Evaluation de la Cognition Sociale de Bordeaux (PECS-B). Psychologie. Université de Bordeaux, 2017. Français. ⟨NNT : 2017BORD0922⟩. ⟨tel-02085663⟩

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