Evidence map›Paper›PMID 31858920›Full record

ArticlePsychological medicine2021

Neuroanatomical abnormalities in first-episode psychosis across independent samples: a multi-centre mega-analysis.

Sandra Vieira, Qiyong Gong, Cristina Scarpazza, Su Lui, Xiaoqi Huang, Benedicto Crespo-Facorro, Diana Tordesillas-Gutierrez, Víctor Ortiz-García de la Foz, Esther Setien-Suero, Floor Scheepers and 10 more

Open access · hybridAbstract readMulticenter Study
In one paragraph

Article in Psychological medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 38 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

20 authors at 7 institutions in 5 countries.

Sandra VieiraDepartment of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.ORCID 0000-0002-2141-1963
Qiyong GongHuaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China.
Cristina ScarpazzaDepartment of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
Su LuiHuaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China.
Xiaoqi HuangHuaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, China.
Benedicto Crespo-FacorroCIBERSAM, Centro Investigación Biomédica en Red de Salud Mental, Madrid, Spain.
Diana Tordesillas-GutierrezCIBERSAM, Centro Investigación Biomédica en Red de Salud Mental, Madrid, Spain.
Víctor Ortiz-García de la FozCIBERSAM, Centro Investigación Biomédica en Red de Salud Mental, Madrid, Spain.
Esther Setien-SueroCIBERSAM, Centro Investigación Biomédica en Red de Salud Mental, Madrid, Spain.
Floor ScheepersBrain Centre Rudolf Magnus, University Medical Centre Utrecht, Utrecht, The Netherlands.
Neeltje E M van HarenBrain Centre Rudolf Magnus, University Medical Centre Utrecht, Utrecht, The Netherlands.
René KahnBrain Centre Rudolf Magnus, University Medical Centre Utrecht, Utrecht, The Netherlands.
Tiago Reis MarquesDepartment of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
Simone CiufoliniDepartment of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
Marta Di FortiSocial, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
Robin M MurrayDepartment of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
Anthony DavidUCL Institute of Mental Health, University College London, UK.
Paola DazzanDepartment of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
Philip McGuireDepartment of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
Andrea MechelliDepartment of Psychosis Studies, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.
King's College London · GBChinese Academy of Medical Sciences & Peking Union Medical College · CNUniversidad de Cantabria · ESUniversity Medical Center Utrecht · NLCentro de Investigación Biomédica en Red de Salud Mental · ESInstitute of Mental Health · GBUniversity of Padua · IT

Funding

Medical Research Council MC_PC_11003MRF_ C0439Wellcome Trust 208519Wellcome Trust 208519/Z/17/Z
6 · The paper itself

Abstract

backgroundNeuroanatomical abnormalities in first-episode psychosis (FEP) tend to be subtle and widespread. The vast majority of previous studies have used small samples, and therefore may have been underpowered. In addition, most studies have examined participants at a single research site, and therefore the results may be specific to the local sample investigated. Consequently, the findings reported in the existing literature are highly heterogeneous. This study aimed to overcome these issues by testing for neuroanatomical abnormalities in individuals with FEP that are expressed consistently across several independent samples.

methodsStructural Magnetic Resonance Imaging data were acquired from a total of 572 FEP and 502 age and gender comparable healthy controls at five sites. Voxel-based morphometry was used to investigate differences in grey matter volume (GMV) between the two groups. Statistical inferences were made at p < 0.05 after family-wise error correction for multiple comparisons.

resultsFEP showed a widespread pattern of decreased GMV in fronto-temporal, insular and occipital regions bilaterally; these decreases were not dependent on anti-psychotic medication. The region with the most pronounced decrease - gyrus rectus - was negatively correlated with the severity of positive and negative symptoms.

conclusionsThis study identified a consistent pattern of fronto-temporal, insular and occipital abnormalities in five independent FEP samples; furthermore, the extent of these alterations is dependent on the severity of symptoms and duration of illness. This provides evidence for reliable neuroanatomical alternations in FEP, expressed above and beyond site-related differences in anti-psychotic medication, scanning parameters and recruitment criteria.

Indexed as

AdolescentAdultBrainCase-Control StudiesCerebral CortexFemaleGray MatterHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleOrgan SizePsychiatric Status Rating ScalesPsychotic DisordersYoung AdultFirst-episode psychosismega-analysismulti-centreneuroanatomyvoxel-based morphometry

Identifiers

PMID31858920
PMCPMC7893510
OpenAlexW2993588921

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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.