@misc{10481/105140,
year = {2015},
month = {12},
url = {https://hdl.handle.net/10481/105140},
abstract = {Introduction: Since the early description of paranoia, the nosology of delusional disorder has always been contro-
versial. 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 be-
tween 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 dis-
order. 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 sub-
sequently 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.},
organization = {Instituto de Salud Carlos III (ISCIII) (PS09/01671, PI13:01967, PI021813)},
organization = {CIBERSAMCB07/09/0036},
publisher = {Elsevier},
keywords = {Psicosis},
keywords = {Psicopatología},
keywords = {Dimensiones},
title = {A dimensional comparison between delusional disorder, schizophrenia and schizoaffective disorder},
doi = {10.1016/j.schres.2015.10.039},
author = {Muñoz Negro, José Eduardo and Ibanez-Casas, Inmaculada and De Portugal, Enrique and Ochoa, Susana and Dolz, Montserrat and Haro, Josep M. and Ruiz-Veguilla, Miguel and Luna Del Castillo, Juan De Dios and Cervilla Ballesteros, Jorge Antonio},
}