Maria Paz Garcia-Portilla1, Leticia Garcia-Alvarez2, Anna Mané3, Clemente Garcia-Rizo4, Gisela Sugranyes5, Daniel Bergé6, Miguel Bernardo7, Emilio Fernández-Egea8, Julio Bobes9. 1. Department of Psychiatry, University of Oviedo, Spain; Centro de Investigación Biomédica en Red, Área de Salud Mental (CIBERSAM), Spain. Electronic address: albert@uniovi.es. 2. Centro de Investigación Biomédica en Red, Área de Salud Mental (CIBERSAM), Spain. 3. Centro de Investigación Biomédica en Red, Área de Salud Mental (CIBERSAM), Spain; Institut de Neuropsiquiatria i Adiccions, Parc de Salut Mar, Barcelona, Spain; Fundació IMIM, Barcelona, Spain. 4. Centro de Investigación Biomédica en Red, Área de Salud Mental (CIBERSAM), Spain; Barcelona Clinic Schizophrenia Unit, Neuroscience Institute, Hospital Clinic of Barcelona, Spain. 5. Child and Adolescent Psychiatric Unit, Neuroscience Institute, Hospital Clinic of Barcelona, Spain; Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain. 6. Institut de Neuropsiquiatria i Adiccions, Parc de Salut Mar, Barcelona, Spain; Fundació IMIM, Barcelona, Spain. 7. Centro de Investigación Biomédica en Red, Área de Salud Mental (CIBERSAM), Spain; Barcelona Clinic Schizophrenia Unit, Neuroscience Institute, Hospital Clinic of Barcelona, Spain; Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Department of Psychiatry and Clinical Psychobiology, University of Barcelona, Barcelona, Spain. 8. Centro de Investigación Biomédica en Red, Área de Salud Mental (CIBERSAM), Spain; Department of Psychiatry, Behavioural and Clinical Neuroscience Institute, University of Cambridge, United Kingdom; Cambridgeshire and Peterborough NHS Foundation Trust, United Kingdom. 9. Department of Psychiatry, University of Oviedo, Spain; Centro de Investigación Biomédica en Red, Área de Salud Mental (CIBERSAM), Spain.
Abstract
AIMS: To analyse the underlying structure of the negative syndrome of schizophrenia as it is represented in the Brief Negative Symptom Scale. METHODS: Cross-sectional, multicentre study, employing data from 190 evaluations. STATISTICS: Exploratory factor analysis using the principal component analysis method. RESULTS: The three-component solution explained 77.4% of the total variance. Pearson correlation coefficients between components were: 1-2=-0.494, 1-3=-0.117, and 2-3=0.179. CONCLUSION: Our solution favours a three-component structure of the negative syndrome, consisting of: external world (anhedonia and asociality), inner world (avolition and blunted affect), and alogia, with the latter only marginally related to the two former components.
AIMS: To analyse the underlying structure of the negative syndrome of schizophrenia as it is represented in the Brief Negative Symptom Scale. METHODS: Cross-sectional, multicentre study, employing data from 190 evaluations. STATISTICS: Exploratory factor analysis using the principal component analysis method. RESULTS: The three-component solution explained 77.4% of the total variance. Pearson correlation coefficients between components were: 1-2=-0.494, 1-3=-0.117, and 2-3=0.179. CONCLUSION: Our solution favours a three-component structure of the negative syndrome, consisting of: external world (anhedonia and asociality), inner world (avolition and blunted affect), and alogia, with the latter only marginally related to the two former components.
Authors: S Galderisi; A Mucci; S Dollfus; M Nordentoft; P Falkai; S Kaiser; G M Giordano; A Vandevelde; M Ø Nielsen; L B Glenthøj; M Sabé; P Pezzella; I Bitter; W Gaebel Journal: Eur Psychiatry Date: 2021-02-18 Impact factor: 5.361
Authors: Ivan Ristić; Stefan Jerotić; Mirjana Zebić; Bojana Savić; Vuk Vuković; Manuela Russo; Tatjana Voskresenski; Nikolina Jovanović; Nađa P Marić Journal: Front Psychol Date: 2020-10-26