ArticlePsychiatry research2016
Delusions in first-episode psychosis: Principal component analysis of twelve types of delusions and demographic and clinical correlates of resulting domains.
Article in Psychiatry research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.
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Who cites it
17 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.
- Activation of the motivation-related ventral striatum during delusional experience.Translational psychiatry · 2018Pooled it
- Capturing behavioral indicators of persecutory ideation using mobile technology.Journal of psychiatric research · 2019Trial
- Validation of the Eight-Item Paranoid Thoughts Scale (GPTS-8) in Tunisian Arab Adults.International journal of methods in psychiatric research · 2025Article
- Gauteng mental healthcare providers' understanding of cultural and religious illnesses.South African family practice : official journal of the South African Academy of Family Practice/Primary Care · 2025Article
- Potential research priorities for understanding and treating severe paranoia (persecutory delusions): a priority-setting partnership between patients, carers, mental health staff, and researchers.BMJ mental health · 2024Article
- The influence of psychotic-like experiences on intent to seek treatment: Findings from a multi-site community survey of mental health experiences.Schizophrenia research · 2023Article
- Differential Trajectories of Delusional Content and Severity Over 2 Years of Early Intervention for Psychosis: Comparison Between Chennai, India, and Montréal, Canada.Schizophrenia bulletin · 2023Article
- A preliminary study examining terminology used by individuals with lived experience describing beliefs about being targeted or harmed by others.Psychiatry research · 2023Article
- Using dimensionality-reduction techniques to understand the organization of psychotic symptoms in persistent psychotic illness and first episode psychosis.Scientific reports · 2023Article
- Linked brain connectivity patterns with psychopathological and cognitive phenotypes in drug-naïve first-episode schizophrenia.Psychoradiology · 2022Article
- Pivotal mental states.Journal of psychopharmacology (Oxford, England) · 2021Review
- Derationalizing Delusions.Clinical psychological science : a journal of the Association for Psychological Science · 2021Review
- The revised GreenPsychological medicine · 2021Article
- Inefficient neural system stabilization: a theory of spontaneous resolutions and recurrent relapses in psychosisJournal of psychiatry & neuroscience : JPN · 2019Review
- Increased structural connectivity of the medial forebrain bundle in schizophrenia spectrum disorders is associated with delusions of paranoid threat and grandiosity.NeuroImage. Clinical · 2019Article
- Delusional Themes Across Affective and Non-Affective Psychoses.Frontiers in psychiatry · 2018Article
- Auditory and non-auditory hallucinations in first-episode psychosis: Differential associations with diverse clinical features.Psychiatry research · 2017Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
Abstract
Although delusions represent one of the core symptoms of psychotic disorders, it is remarkable that few studies have investigated distinct delusional themes. We analyzed data from a large sample of first-episode psychosis patients (n=245) to understand relations between delusion types and demographic and clinical correlates. First, we conducted a principal component analysis (PCA) of the 12 delusion items within the Scale for the Assessment of Positive Symptoms (SAPS). Then, using the domains derived via PCA, we tested a priori hypotheses and answered exploratory research questions related to delusional content. PCA revealed five distinct components: Delusions of Influence, Grandiose/Religious Delusions, Paranoid Delusions, Negative Affect Delusions (jealousy, and sin or guilt), and Somatic Delusions. The most prevalent type of delusion was Paranoid Delusions, and such delusions were more common at older ages at onset of psychosis. The level of Delusions of Influence was correlated with the severity of hallucinations and negative symptoms. We ascertained a general relationship between different childhood adversities and delusional themes, and a specific relationship between Somatic Delusions and childhood neglect. Moreover, we found higher scores on Delusions of Influence and Negative Affect Delusions among cannabis and stimulant users. Our results support considering delusions as varied experiences with varying prevalences and correlates.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.