Evidence map›Paper›PMID 38191534›Full record

SynthesisTranslational psychiatry2024

The magnitude and variability of neurocognitive performance in first-episode psychosis: a systematic review and meta-analysis of longitudinal studies.

Ana Catalan, Robert A McCutcheon, Claudia Aymerich, Borja Pedruzo, Joaquim Radua, Victoria Rodríguez, Gonzalo Salazar de Pablo, Malein Pacho, Jose Luis Pérez, Marco Solmi and 6 more

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Translational psychiatry, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
14.3field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

The trial behind it

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 37 citations in OpenAlex.

  1. Pooled it
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  4. Article
  5. Whole brain grey matter synaptic terminal density, age and intellectual functioning in schizophrenia: an in vivo [Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
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  12. Validation and normative data for the BAC app in Spanish-speaking individuals with psychosis and healthy controls.European psychiatry : the journal of the Association of European Psychiatrists · 2025
    Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors at 6 institutions in 6 countries.

Ana CatalanDepartment of Neuroscience, University of the Basque Country UPV/EHU; Psychiatry Department. Basurto University Hospital; Biobizkaia Health Research Institute; Centro de Investigación en Red de Salud Mental. (CIBERSAM) Instituto de Salud Carlos III , OSI Bilbao-Basurto, Av. Montevideo 18, 48013, Bilbao, Spain. ana.catalanalcantara@osakidetza.eus.ORCID 0000-0002-0418-7904
Robert A McCutcheonDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID 0000-0003-1102-2566
Claudia AymerichDepartment of Neuroscience, University of the Basque CountryUPV/EHU. Psychiatry Department. Basurto University Hospital. BiBiobizkaia Health Research Institute. Centro de Investigaciónen Red de Salud Mental. (CIBERSAM), Instituto de Salud Carlos III, Avenida de Montevideo 18, 48013, Bilbao, Spain.
Borja PedruzoPsychiatry Department. Basurto University Hospital, OSI Bilbao-Basurto, Bizkaia, Spain.
Joaquim RaduaImaging of Mood- and Anxiety-Related Disorders (IMARD) Group, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Mental Health Research Networking Center (CIBERSAM), Instituto de Salud Carlos III, University of Barcelona, Barcelona, Spain.
Victoria RodríguezDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Gonzalo Salazar de PabloEarly Psychosis Interventions and Clinical-detection (EPIC) Lab, Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.ORCID 0000-0002-6992-0767
Malein PachoPsychiatry Department. Basurto University Hospital, OSI Bilbao-Basurto, Bizkaia, Spain.
Jose Luis PérezPsychiatry Department. Basurto University Hospital, OSI Bilbao-Basurto, Bizkaia, Spain.
Marco SolmiCharité Universitätsmedizin Berlin, Department of Child and Adolescent Psychiatry, Berlin, Germany.ORCID 0000-0003-4877-7233
Philip McGuireDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID 0000-0003-4381-0532
Anthony J GiulianoDepartment of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
William S StoneDepartment of Psychiatry, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.ORCID 0000-0003-2932-7288
Robin M MurrayDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.ORCID 0000-0003-0829-0519
Miguel Angel Gonzalez-Torres *Department of Neuroscience, University of the Basque Country UPV/EHU; Psychiatry Department. Basurto University Hospital; Biobizkaia Health Research Institute; Centro de Investigación en Red de Salud Mental. (CIBERSAM) Instituto de Salud Carlos III , OSI Bilbao-Basurto, Av. Montevideo 18, 48013, Bilbao, Spain.
Paolo Fusar-Poli *Early Psychosis Interventions and Clinical-detection (EPIC) Lab, Department of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
King's College London · GBHospital de Basurto · ESUniversity of the Basque Country · ESBeth Israel Deaconess Medical Center · USInstituto de Salud Carlos III · ESUniversity of Ottawa · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neurocognitive deficits are a core feature of psychotic disorders, but it is unclear whether they affect all individuals uniformly. The aim of this systematic review and meta-analysis was to synthesize the evidence on the magnitude, progression, and variability of neurocognitive functioning in individuals with first-episode psychosis (FEP). A multistep literature search was conducted in several databases up to November 1, 2022. Original studies reporting on neurocognitive functioning in FEP were included. The researchers extracted the data and clustered the neurocognitive tasks according to the seven Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) domains and six additional domains. Random-effect model meta-analyses, assessment of publication biases and study quality, and meta-regressions were conducted. The primary effect size reported was Hedges g of (1) neurocognitive functioning in individuals at FEP measuring differences with healthy control (HC) individuals or (2) evolution of neurocognitive impairment across study follow-up intervals. Of 30,384 studies screened, 54 were included, comprising 3,925 FEP individuals and 1,285 HC individuals. Variability analyses indicated greater variability in FEP compared to HC at baseline and follow-up. We found better neurocognitive performance in the HC group at baseline and follow-up but no differences in longitudinal neurocognitive changes between groups. Across the 13 domains, individuals with FEP showed improvement from baseline in all studied domains, except for visual memory. Metaregressions showed some differences in several of the studied domains. The findings suggest that individuals with FEP have marked cognitive impairment, but there is greater variability in cognitive functioning in patients than in HC. This suggests that subgroups of individuals suffer severe disease-related cognitive impairments, whereas others may be much less affected. While these impairments seem stable in the medium term, certain indicators may suggest potential further decline in the long term for a specific subgroup of individuals, although more research is needed to clarify this. Overall, this study highlights the need for tailored neurocognitive interventions for individuals with FEP based on their specific deficits and progression.

Indexed as

Cognitive DysfunctionPsychotic DisordersCognitionDatabases, FactualHumansLongitudinal Studies

Identifiers

PMID38191534
PMCPMC10774360
OpenAlexW4390663310

What OpenQuestion holds

Textmetadata
LicenceCC BY
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Registered trials

None linked

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.