ReviewComprehensive psychiatry2012
Categorical vs dimensional classifications of psychotic disorders.
Review in Comprehensive psychiatry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
22 citing papers in PubMed, 73 citations in OpenAlex.
- Attention and learning strategies reveal distinct dimensions of psychiatric diseases.Research square · 2026Article
- Diagnostic Utility of Formal Thought Disorder Between Affective and Non-Affective Psychosis: A Machine Learning Approach.The Psychiatric quarterly · 2026Article
- Restoring Course as a Core Diagnostic Element of Psychotic Disorders.Schizophrenia bulletin · 2025Review
- Latent class analysis of symptoms across schizophrenia, schizoaffective disorder, and bipolar I disorder.medRxiv : the preprint server for health sciences · 2025Article
- A comprehensive overview of neuropsychiatric symptoms in adolescents with 22q11.2 deletion syndrome.Journal of intellectual disability research : JIDR · 2025Article
- Transdiagnostic modeling of clinician-rated symptoms in affective and nonaffective psychotic disorders.Journal of psychopathology and clinical science · 2025Article
- The Modern Concept of Schizoaffective Disorder: A Narrative Review.Consortium psychiatricum · 2024Review
- Using dimensionality-reduction techniques to understand the organization of psychotic symptoms in persistent psychotic illness and first episode psychosis.Scientific reports · 2023Article
- Neurobiologically Based Stratification of Recent-Onset Depression and Psychosis: Identification of Two Distinct Transdiagnostic Phenotypes.Biological psychiatry · 2022Article
- Psychiatric diagnosis and treatment in the 21st century: paradigm shifts versus incremental integration.World psychiatry : official journal of the World Psychiatric Association (WPA) · 2022Article
- The benefit of diagnostic whole genome sequencing in schizophrenia and other psychotic disorders.Molecular psychiatry · 2022Article
- Symptomatic Profile of Cariprazine in the Context of ICD-11 Domains for Schizophrenia: Review of Clinically Oriented Studies: Симптоматический профиль карипразина в контексте доменов шизофрении в МКБ -11: обзор клинически ориентированных исследований.Consortium psychiatricum · 2022Review
- Heterogeneity and Classification of Recent Onset Psychosis and Depression: A Multimodal Machine Learning Approach.Schizophrenia bulletin · 2021Article
- Clinical Features of Psychotic Disorders: Comparing Categorical and Dimensional Models.Psychiatric research and clinical practice · 2021Article
- Diagnostic Stability of Primary Psychotic Disorders in a Research Sample.Frontiers in psychiatry · 2021Article
- Symptom dimensions and subgroups in childhood-onset schizophrenia.Schizophrenia research · 2018Article
- Symptom rating scales for schizophrenia and other primary psychotic disorders in ICD-11.Epidemiology and psychiatric sciences · 2018Article
- Early onset first episode psychosis: dimensional structure of symptoms, clinical subtypes and related neurodevelopmental markers.European child & adolescent psychiatry · 2018Article
- Bipolar disorder risk geneJournal of psychiatry & neuroscience : JPN · 2017Article
- Searching human brain for mechanisms of psychiatric disorders. Implications for studies on schizophrenia.Schizophrenia research · 2015Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
objectiveBoth categorical and dimensional methods appear relevant to classifying psychotic disorders; however, there is no clear consensus on the most appropriate categories and dimensions or on the best approach for constructing nosologic criteria that integrate these 2 methods. This review examines the evidence on specific dimensions and categories that would best characterize psychoses.
methodEntries in the MEDLINE database between 1980 and 2011 were searched for studies of the dimensional and/or categorical structure of psychosis. Studies were included if samples represented a spectrum of psychotic disorders and dimensions/categories were empirically derived using principal components analysis, factor analysis, or latent class analysis.
resultsMost dimensional studies observed 4 or 5 dimensions within psychosis, with positive, negative, disorganization, and affective symptom domains most frequently reported. Substance abuse, anxiety, early onset/developmental, insight, cognition, hostility, and behavioral/social disturbance dimensions appeared in some studies. Categorical studies suggested 3 to 7 major classes within psychosis, including a class similar to Kraepelin's dementia praecox and one or more classes with significant mood components. Only 2 studies compared the relative fit of empirically derived dimensions and categories within the same data set, and each had significant limitations.
conclusionThere is relatively consistent evidence on appropriate categories and dimensions for characterizing psychoses. However, the lack of studies directly comparing or combining these approaches provides insufficient evidence for definitive conclusions about their relative merits and integration. The authors provide specific recommendations for designing future studies to identify valid dimensions and/or categories of the psychoses and investigate hybrid approaches to model the structure of the underlying illnesses.
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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.