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Titolo:
Integrating psychopathological dimensions in functional psychoses: a hierarchical approach
Autore:
Cuesta, MJ; Peralta, V;
Indirizzi:
Virgen Camino Hosp, Psychiat Unit 1, Pamplona 31008, Spain Virgen Camino Hosp Pamplona Spain 31008 at Unit 1, Pamplona 31008, Spain
Titolo Testata:
SCHIZOPHRENIA RESEARCH
fascicolo: 3, volume: 52, anno: 2001,
pagine: 215 - 229
SICI:
0920-9964(200112)52:3<215:IPDIFP>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
CLUSTER-ANALYTIC APPROACH; NEGATIVE SYMPTOMS; POSITIVE SYMPTOMS; SCHIZOPHRENIC SYMPTOMS; PSYCHIATRIC RESEARCH; MAJOR PSYCHOSES; RATING-SCALE; ILLNESS; MODEL; HETEROGENEITY;
Keywords:
psychosis; schizophrenia; psychopathological dimensions; positive and negative symptoms; positive and negative dimensions; hierarchy of dimensions; assessment and documentation of psychopathology (AMDP);
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Life Sciences
Citazioni:
66
Recensione:
Indirizzi per estratti:
Indirizzo: Cuesta, MJ Virgen Camino Hosp, Psychiat Unit 1, Irunlarrea 4, Pamplona 31008, Spain Virgen Camino Hosp Irunlarrea 4 Pamplona Spain 31008 08, Spain
Citazione:
M.J. Cuesta e V. Peralta, "Integrating psychopathological dimensions in functional psychoses: a hierarchical approach", SCHIZOPHR R, 52(3), 2001, pp. 215-229

Abstract

Previous factor analysis studies of psychotic symptomatology have demonstrated three psychopathological dimensions: positive, negative and disorganization. However, few studies have analyzed non-schizophrenic samples and most use a syndrome-level of analysis or only schizophrenic symptom scales. This study examined how many dimensions underlie psychosis, and whether within psychosis there is a hierarchical organization of dimensions. A total of 660 inpatients with an acute psychotic episode were studied. Psychopathology was measured through a wide psychopathological assessment using the Manual for the Assessment and Documentation of Psychopathology (AMDP-system). Principal component factor analysis was carried out on 64 psychopathological symptoms scoring 1 or higher in at least 10% of the sample. A 15-factor solution was obtained which failed to depict a psychosis model on clinical and methodological grounds. Further predetermined factor analyses ranging from 1 to 15 factors were carried out to examine alternative factor solutions. A 10-dimensional model was the best model on clinical, statistical and conceptual grounds. Moreover, the examination of the 1 to 10 dimensional models allowed us to infer a hierarchical model of psychopathological dimensions, which can be represented in the frame of a tree-structure. The model permitted transitions between psychiatric categories and psychopathological dimensions, and it was able to integrate previous factor solutions with different numbers of resulting dimensions. The findings have implications for the design of future studies and for the hierarchical conceptualization of psychopathological dimensions. (C) 2001Elsevier Science B.V. All rights reserved.

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Documento generato il 18/01/20 alle ore 13:18:18