García-Mieres Helena, Villaplana Anna, López-Carrilero Raquel, Grasa Eva, Barajas Ana, Pousa Esther, Feixas Guillem, Ochoa Susana
Department of Clinical Psychology and Psychobiology, Faculty of Psychology, University of Barcelona, Barcelona, Spain.
The Institute of Neurosciences, University of Barcelona, Barcelona, Spain.
Schizophr Bull. 2020 Apr 10;46(3):572-580. doi: 10.1093/schbul/sbz082.
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.
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.
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.
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.
患有精神病的人会经历个人身份认同的紊乱，这会影响阳性和阴性症状，但这些现象的复杂性需要深入探讨。运用个人建构理论，我们研究了通过 repertory 网格技术测量的个人身份认同的不同维度以及其他认知因素是否会影响精神病症状。
八十五名患有精神分裂症谱系障碍的门诊患者完成了一个 repertory 网格、一次关于精神病症状的观察评分访谈，以及认知洞察力、抑郁症状、神经认知和心理理论的测量。
结构方程模型显示，人际二分法思维直接影响阳性症状。自我差异通过抑郁症状的中介作用影响阳性症状。人际认知分化和人际认知丰富性在阴性症状学中中介了自我反思和神经认知缺陷的影响。
本研究是同类研究中首个考察个人身份认同结构与精神病阳性和阴性症状关系的研究。结果表明，针对改善人际二分法思维、自我差异、人际认知分化和人际认知丰富性的干预措施可能有助于改善精神病症状。
