What do bizarre delusions mean in schizophrenia?

What do bizarre delusions mean in schizophrenia?

Author Sinott, Rodrigo Google Scholar
Franco, Ana Luiza Autor UNIFESP Google Scholar
Schimidt, Fabio Google Scholar
Higuchi, Cinthia Hiroko Autor UNIFESP Google Scholar
de Araujo Filho, Gerardo Maria Google Scholar
Bressan, Rodrigo Affonseca Autor UNIFESP Google Scholar
Gadelha, Ary Autor UNIFESP Google Scholar
Ortiz, Bruno Bertolucci Autor UNIFESP Google Scholar
Abstract Background: Bizarre delusions are a hallmark of schizophrenia. The symptom Unusual Thought Content (G9) of the Positive and Negative Syndrome Scale (Kay, S.R., Flszbein, A., & Opfer, L.A. (1987). The positive and negative syndrome scale (PANSS) for schizophrenia. Schizophrenia Bulletin, 13, 261-276.) is defined as thinking characterized by strange, fantastic, or bizarre ideas, ranging from those which are remote or atypical to those which are distorted, illogical and patently absurd. The aim of the present study was to investigate the relationship between symptom severity as assessed by PANSS component G9 and the delusional content communicated by the patient. Methods: We compared the G9 PANSS scores between patients with 2, 3, 4, and 5 types of delusions. After that, clinical and demographic variables were compared between patients with G9 4 (absent to moderate severity score) and patients with G9 5 (severe to extreme severity score). Result: Patients with more types of delusions tended to have higher G9 mean scores. Patients at first episode of psychosis (P = 0.033), and with early response to antipsychotic (P = 0.001) tended to present lower G9 scores. Conclusions: This finding suggests that the clinical notion of bizarreness is more associated with a chaotic diversity of delusional themes out of context than with a single systematized delusional core.
Keywords bizarre delusions
schizophrenia diagnosis
delusional content
Language English
Sponsor FAPESP
Fundacao Safra
Fundacao ABADS
Eli Lilly
Date 2016
Published in Psychosis-Psychological Social And Integrative Approaches. Abingdon, v. 8, n. 3, p. 270-276, 2016.
ISSN 1752-2439 (Sherpa/Romeo, impact factor)
Publisher Routledge Journals, Taylor & Francis Ltd
Extent 270-276
Origin http://dx.doi.org/10.1080/17522439.2015.1100668
Access rights Closed access
Type Article
Web of Science ID WOS:000382196300008
URI http://repositorio.unifesp.br/handle/11600/51136

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