Evidence map›Paper›PMID 33638594›Full record

ArticleHuman brain mapping2021

Replicating extensive brain structural heterogeneity in individuals with schizophrenia and bipolar disorder.

Thomas Wolfers, Jaroslav Rokicki, Dag Alnaes, Pierre Berthet, Ingrid Agartz, Seyed Mostafa Kia, Tobias Kaufmann, Mariam Zabihi, Torgeir Moberget, Ingrid Melle and 4 more

Registry-linked trialAbstract read
In one paragraph

Article in Human brain mapping, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07699159 (Cohort Network for Adolescents and Youth With multipLe Mental Health Conditions), which is not on this map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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.

NCT07699159 recruitingnot on this mapstarted 2025, after this paper: background citation

Cohort Network for Adolescents and Youth With multipLe Mental Health Conditions (CALM): A Master Observational Trial

TypeobservationalSponsorCentre for Addiction and Mental HealthRan2025 to 2028Enrolled1,620ConditionsMultiple Mental Health Conditions, Child Mental Health, Youth Mental Health
3 · Its place in the literature

Who cites it

41 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  11. Mapping Cerebellar Morphology in 15q11.2 CNV Carriers Using Normative Modeling.medRxiv : the preprint server for health sciences · 2025
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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

14 authors.

Thomas WolfersDepartment of Psychology, University of Oslo, Oslo, Norway.ORCID 0000-0002-7693-0621
Jaroslav RokickiDepartment of Psychology, University of Oslo, Oslo, Norway.
Dag AlnaesDepartment of Psychology, University of Oslo, Oslo, Norway.
Pierre BerthetDepartment of Psychology, University of Oslo, Oslo, Norway.
Ingrid AgartzDivision of Mental Health and Addiction, Norwegian Center for Mental Disorders Research (NORMENT), University of Oslo and Oslo University Hospital, Oslo, Norway.
Seyed Mostafa KiaDonders Center for Cognitive Neuroimaging, Donders Institute for Brain, Cognition, and Behavior, Radboud University, Nijmegen, The Netherlands.
Tobias KaufmannDivision of Mental Health and Addiction, Norwegian Center for Mental Disorders Research (NORMENT), University of Oslo and Oslo University Hospital, Oslo, Norway.
Mariam ZabihiDonders Center for Cognitive Neuroimaging, Donders Institute for Brain, Cognition, and Behavior, Radboud University, Nijmegen, The Netherlands.
Torgeir MobergetDepartment of Psychology, University of Oslo, Oslo, Norway.
Ingrid MelleDivision of Mental Health and Addiction, Norwegian Center for Mental Disorders Research (NORMENT), University of Oslo and Oslo University Hospital, Oslo, Norway.
Christian F BeckmannDonders Center for Cognitive Neuroimaging, Donders Institute for Brain, Cognition, and Behavior, Radboud University, Nijmegen, The Netherlands.
Ole A AndreassenDivision of Mental Health and Addiction, Norwegian Center for Mental Disorders Research (NORMENT), University of Oslo and Oslo University Hospital, Oslo, Norway.
Andre F MarquandDonders Center for Cognitive Neuroimaging, Donders Institute for Brain, Cognition, and Behavior, Radboud University, Nijmegen, The Netherlands.
Lars T WestlyeDepartment of Psychology, University of Oslo, Oslo, Norway.ORCID 0000-0001-8644-956X

Funding

European Research Council 802998European Research Council 847776Marie Curie 895011Wellcome Trust 215698Wellcome Trust 215698/Z/19/ZZonMw 91716415
6 · The paper itself

Abstract

Identifying brain processes involved in the risk and development of mental disorders is a major aim. We recently reported substantial interindividual heterogeneity in brain structural aberrations among patients with schizophrenia and bipolar disorder. Estimating the normative range of voxel-based morphometry (VBM) data among healthy individuals using a Gaussian process regression (GPR) enables us to map individual deviations from the healthy range in unseen datasets. Here, we aim to replicate our previous results in two independent samples of patients with schizophrenia (n1 = 94; n2 = 105), bipolar disorder (n1 = 116; n2 = 61), and healthy individuals (n1 = 400; n2 = 312). In line with previous findings with exception of the cerebellum our results revealed robust group level differences between patients and healthy individuals, yet only a small proportion of patients with schizophrenia or bipolar disorder exhibited extreme negative deviations from normality in the same brain regions. These direct replications support that group level-differences in brain structure disguise considerable individual differences in brain aberrations, with important implications for the interpretation and generalization of group-level brain imaging findings to the individual with a mental disorder.

Indexed as

Magnetic Resonance ImagingNeuroimagingAdultBipolar DisorderFemaleGray MatterHumansMaleMiddle AgedReproducibility of ResultsSchizophreniaYoung Adultbipolar disorderbrain imagingheterogeneityindividual patientmental disordersnormative modelingschizophrenia

Identifiers

PMID33638594
PMCPMC8090780

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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.