Helena García-Mieres1,2,3, Anna Villaplana3, Raquel López-Carrilero3, Eva Grasa4,5, Ana Barajas6, Esther Pousa4,5, Guillem Feixas1,2, Susana Ochoa3,5. 1. Department of Clinical Psychology and Psychobiology, Faculty of Psychology, University of Barcelona, Barcelona, Spain. 2. The Institute of Neurosciences, University of Barcelona, Barcelona, Spain. 3. Parc Sanitari Sant Joan de Déu, Sant Joan de Déu Research Institute, Sant Boi de Llobregat, Barcelona, Spain. 4. Department of Psychiatry, Biomedical Research Institute Sant Pau (IIB-SANT PAU), Hospital Santa Creu i Sant Pau; Universitat Autònoma de Barcelona (UAB), Barcelona, Spain. 5. Mental Health Networking Biomedical Research Centre, CIBERSAM, Madrid, Spain. 6. Centro de Higiene Mental Les Corts, Barcelona, Spain.
Abstract
BACKGROUND: People with psychosis experience disruptions in personal identity that affect positive and negative symptoms, but the complexity of these phenomena needs to be addressed in an in-depth manner. Using the Personal Construct Theory, we examined whether distinct dimensions of personal identity, as measured with the Repertory Grid Technique along with other cognitive factors, might influence psychotic symptomatology. METHOD: Eighty-five outpatients with schizophrenia-spectrum disorders completed a repertory grid, an observed-rated interview of psychotic symptoms, and measures of cognitive insight, depressive symptoms, neurocognition, and theory of mind. RESULTS: Structural equation models revealed that interpersonal dichotomous thinking directly affected positive symptoms. Self-discrepancies influenced positive symptoms by mediation of depressive symptoms. Interpersonal cognitive differentiation and interpersonal cognitive richness mediated the impact of self-reflectivity and neurocognitive deficits in negative symptomatology. CONCLUSIONS: This study is the first of its kind to examine the structure of personal identity in relation to positive and negative symptoms of psychosis. Results suggest interventions targeted to improving interpersonal dichotomous thinking, self-discrepancies, interpersonal cognitive differentiation, and interpersonal cognitive richness may be useful in improving psychotic symptoms.
BACKGROUND:People with psychosis experience disruptions in personal identity that affect positive and negative symptoms, but the complexity of these phenomena needs to be addressed in an in-depth manner. Using the Personal Construct Theory, we examined whether distinct dimensions of personal identity, as measured with the Repertory Grid Technique along with other cognitive factors, might influence psychotic symptomatology. METHOD: Eighty-five outpatients with schizophrenia-spectrum disorders completed a repertory grid, an observed-rated interview of psychotic symptoms, and measures of cognitive insight, depressive symptoms, neurocognition, and theory of mind. RESULTS: Structural equation models revealed that interpersonal dichotomous thinking directly affected positive symptoms. Self-discrepancies influenced positive symptoms by mediation of depressive symptoms. Interpersonal cognitive differentiation and interpersonal cognitive richness mediated the impact of self-reflectivity and neurocognitive deficits in negative symptomatology. CONCLUSIONS: This study is the first of its kind to examine the structure of personal identity in relation to positive and negative symptoms of psychosis. Results suggest interventions targeted to improving interpersonal dichotomous thinking, self-discrepancies, interpersonal cognitive differentiation, and interpersonal cognitive richness may be useful in improving psychotic symptoms.
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Authors: M Ferrer-Quintero; D Fernández; R López-Carrilero; I Birulés; A Barajas; E Lorente-Rovira; L Díaz-Cutraro; M Verdaguer; H García-Mieres; J Sevilla-Llewellyn-Jones; A Gutiérrez-Zotes; E Grasa; E Pousa; E Huerta-Ramos; T Pélaez; M L Barrigón; F González-Higueras; I Ruiz-Delgado; J Cid; S Moritz; S Ochoa Journal: NPJ Schizophr Date: 2021-12-09