Evidence map›Paper›PMID 19616413›Full record

ArticleSchizophrenia research2009

Cognitive performance is related to cortical grey matter volumes in early stages of schizophrenia: a population-based study of first-episode psychosis.

Taís M Minatogawa-Chang, Maristela S Schaufelberger, Adriana M Ayres, Fábio L S Duran, Elisa K Gutt, Robin M Murray, Teresa M Rushe, Philip K McGuire, Paulo R Menezes, Marcia Scazufca and 1 more

Open access · hybridAbstract read
In one paragraph

Article in Schizophrenia research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
2.2field-weighted citation impact, top 13% 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 52 citations in OpenAlex.

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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

11 authors at 3 institutions in 2 countries.

Taís M Minatogawa-ChangDepartment of Psychiatry, University of São Paulo Medical School, Rua Ovídio Pires Campos, São Paulo, Brazil. tais.minatogawa@gmail.com
Maristela S Schaufelberger
Adriana M Ayres
Fábio L S Duran
Elisa K Gutt
Robin M Murray
Teresa M Rushe
Philip K McGuire
Paulo R Menezes
Marcia Scazufca
Geraldo F Busatto
Universidade de São Paulo · BRKing's College London · GBUniversity of Manchester · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

backgroundNeuropsychological deficits have been reported in association with first-episode psychosis (FEP). Reductions in grey matter (GM) volumes have been documented in FEP subjects compared to healthy controls. However, the possible inter-relationship between the findings of those two lines of research has been scarcely investigated.

objectiveTo investigate the relationship between neuropsychological deficits and GM volume abnormalities in a population-based sample of FEP patients compared to healthy controls from the same geographical area.

methodsFEP patients (n=88) and control subjects (n=86) were evaluated by neuropsychological assessment (Controlled Oral Word Association Test, forward and backward digit span tests) and magnetic resonance imaging using voxel-based morphometry.

resultsSingle-group analyses showed that prefrontal and temporo-parietal GM volumes correlated significantly (p<0.05, corrected) with cognitive performance in FEP patients. A similar pattern of direct correlations between neocortical GM volumes and cognitive impairment was seen in the schizophrenia subgroup (n=48). In the control group, cognitive performance was directly correlated with GM volume in the right dorsal anterior cingulate cortex and inversely correlated with parahippocampal gyral volumes bilaterally. Interaction analyses with "group status" as a predictor variable showed significantly greater positive correlation within the left inferior prefrontal cortex (BA46) in the FEP group relative to controls, and significantly greater negative correlation within the left parahippocampal gyrus in the control group relative to FEP patients.

conclusionOur results indicate that cognitive deficits are directly related to brain volume abnormalities in frontal and temporo-parietal cortices in FEP subjects, most specifically in inferior portions of the dorsolateral prefrontal cortex.

Indexed as

AdultBrain MappingCerebral CortexCognition DisordersCommunity Health PlanningFemaleHumansMagnetic Resonance ImagingMaleNeuropsychological TestsPrincipal Component AnalysisSchizophreniaStatistics as TopicYoung Adult

Identifiers

PMID19616413
PMCPMC2880249
OpenAlexW2082173936

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.