Abstract：
INTRODUCTION:Since the early description of paranoia, the nosology of delusional disorder has always been controversial. The old idea of unitary psychosis has now gained some renewed value from the dimensional continuum model of psychotic symptoms. AIMS:1. To study the psychopathological dimensions of the psychosis spectrum; 2. to explore the association between psychotic dimensions and categorical diagnoses; 3. to compare the different psychotic disorders from a psychopathological and functional point of view. MATERIAL AND METHODS:This is an observational study utilizing a sample of some 550 patients with a psychotic disorder. 373 participants had a diagnosis of schizophrenia, 137 had delusional disorder and 40 with a diagnosis of schizoaffective disorder. The PANSS was used to elicit psychopathology and global functioning was ascertained using the GAF measure. Both exploratory and confirmatory factor analyses of the PANSS items were performed to extract psychopathological dimensions. Associations between diagnostic categories and dimensions were subsequently studied using ANOVA tests. RESULTS:5 dimensions - manic, negative symptoms, depression, positive symptoms and cognitive - emerged. The model explained 57.27% of the total variance. The dimensional model was useful to explained differences and similarities between all three psychosis spectrum categories. The potential clinical usefulness of this dimensional model within and between clinical psychosis spectrum categories is discussed.
journal_name
Schizophr Resjournal_title
Schizophrenia researchauthors
Muñoz-Negro JE,Ibanez-Casas I,de Portugal E,Ochoa S,Dolz M,Haro JM,Ruiz-Veguilla M,de Dios Luna Del Castillo J,Cervilla JAdoi
10.1016/j.schres.2015.10.039subject
Has Abstractpub_date
2015-12-01 00:00:00pages
248-254issue
1-3eissn
0920-9964issn
1573-2509pii
S0920-9964(15)30039-6journal_volume
169pub_type
杂志文章abstract：:Factor analysis was performed on OPCRIT checklist psychotic symptoms rated on 102 patients with DSM-III-R schizophrenia. An initial three-factor solution produced positive, negative, and disorganisation factors. However, application of the scree test suggested five substantive factors, with the positive factor dividin...
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pub_type： 历史文章,杂志文章
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pub_type： 杂志文章,多中心研究
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