Evidence map›Paper›PMID 36624107›Full record

ArticleSchizophrenia (Heidelberg, Germany)2023

Gray matter volume drives the brain age gap in schizophrenia: a SHAP study.

Pedro L Ballester, Jee Su Suh, Natalie C W Ho, Liangbing Liang, Stefanie Hassel, Stephen C Strother, Stephen R Arnott, Luciano Minuzzi, Roberto B Sassi, Raymond W Lam and 8 more

Open access · diamondAbstract read
In one paragraph

Article in Schizophrenia (Heidelberg, Germany), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
7.7field-weighted citation impact, top 2% 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

25 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Increased Brain-Age Gap in Young Adults With Psychotic Experiences.Biological psychiatry global open science · 2026
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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

18 authors at 10 institutions in 1 country.

Pedro L BallesterNeuroscience Graduate Program, McMaster University, Hamilton, ON, Canada.
Jee Su SuhNeuroscience Graduate Program, McMaster University, Hamilton, ON, Canada.
Natalie C W HoFaculty of Arts & Science, University of Toronto, Toronto, ON, Canada.
Liangbing LiangGraduate Program in Neuroscience, Western University, London, ON, Canada.
Stefanie HasselDepartment of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
Stephen C StrotherRotman Research Institute, Baycrest, Toronto, ON, Canada.
Stephen R ArnottRotman Research Institute, Baycrest, Toronto, ON, Canada.
Luciano MinuzziMood Disorders Program, Department of Psychiatry and Behavioural Neurosciences, Hamilton, ON, Canada.
Roberto B SassiDepartment of Psychiatry, University of British Columbia, Vancouver, BC, Canada.
Raymond W LamDepartment of Psychiatry, University of British Columbia, Vancouver, BC, Canada.
Roumen MilevDepartments of Psychiatry and Psychology, Queen's University, and Providence Care, Kingston, ON, Canada.
Daniel J MüllerDepartment of Psychiatry, University of Toronto, Toronto, ON, Canada.
Valerie H TaylorDepartment of Psychiatry, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
Sidney H KennedyInstitute of Medical Science, University of Toronto, Toronto, ON, Canada.
James P ReillyDepartment of Electrical and Computer Engineering, McMaster University, Hamilton, ON, Canada.
Lena PalaniyappanRobarts Research Institute, Western University, London, ON, Canada.
Katharine DunlopKeenan Research Centre for Biomedical Science, Unity Health Toronto, Toronto, Canada.
Benicio N FreyMood Disorders Program, Department of Psychiatry and Behavioural Neurosciences, Hamilton, ON, Canada. freybn@mcmaster.ca.ORCID http://orcid.org/0000-0001-8267-943X
McMaster University · CAUniversity of Toronto · CASt. Joseph’s Healthcare Hamilton · CAUniversity of British Columbia · CAUniversity of Calgary · CAWestern University · CABaycrest Hospital · CACentre for Addiction and Mental Health · CAQueen's University · CASt. Michael's Hospital · CA

Funding

Transcranial Direct Current Stimulation for Treatment of Auditory Verbal HalluciP20GM103472 · NIGMS · THE MIND RESEARCH NETWORK · PI BEDRICK, EDWARD J · 2012 to 2017
$14.3M
NEURAL MECHANISMS OF SCHIZOPHRENIAP20RR021938 · NCRR · THE MIND RESEARCH NETWORK · PI HANLON, FAITH MARIE · 2008 to 2011
$9.4M
Human Translational Applications Core (HTA - Core) (7 of 8)PL1MH083271 · NIMH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI BILDER, ROBERT M · 2007 to 2011
$5.8M
Translational Methods/Facilities Core (TMF - Core) (8 of 8)PL1NS062410 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI EVANS, CHRISTOPHER J. · 2007 to 2011
$4.6M
Translational Models of Memory and Cognitive Control (Component 5 of 8)RL1MH083270 · NIMH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI JENTSCH, J. DAVID · 2007 to 2011
$2.6M
Whole Genome Assoc. Analysis Strategies for Multi. PhenotypesRL1MH083268 · NIMH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI FREIMER, NELSON B. · 2007 to 2011
$2.1M
Consortium for Neuropsychiatric Phenomics-Coordinating Center (1 of 8)UL1DE019580 · NIDCR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI BILDER, ROBERT M · 2008 to 2011
$1.9M
Memory Mechanisms and Mental DisordersRL1MH083269 · NIMH · YALE UNIVERSITY · PI CANNON, TYRONE D · 2007 to 2011
$1.8M
Response Inhibition and Dopamine Neurotransmission (RI) (4 of 8)RL1DA024853 · NIDA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI LONDON, EDYTHE DANICK · 2007 to 2011
$1.7M
Hypothesis Web Development for Neuropsychiatric Phenomics (6 of 8)RL1LM009833 · NLM · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI PARKER, DOUGLASS STOTT · 2007 to 2011
$1.5M
NCRR NIH HHS P20 RR021938NIDA NIH HHS RL1 DA024853NIDCR NIH HHS UL1 DE019580NIGMS NIH HHS P20 GM103472NIMH NIH HHS PL1 MH083271NIMH NIH HHS RL1 MH083268NIMH NIH HHS RL1 MH083269NIMH NIH HHS RL1 MH083270NINDS NIH HHS PL1 NS062410NLM NIH HHS RL1 LM009833
6 · The paper itself

Abstract

Neuroimaging-based brain age is a biomarker that is generated by machine learning (ML) predictions. The brain age gap (BAG) is typically defined as the difference between the predicted brain age and chronological age. Studies have consistently reported a positive BAG in individuals with schizophrenia (SCZ). However, there is little understanding of which specific factors drive the ML-based brain age predictions, leading to limited biological interpretations of the BAG. We gathered data from three publicly available databases - COBRE, MCIC, and UCLA - and an additional dataset (TOPSY) of early-stage schizophrenia (82.5% untreated first-episode sample) and calculated brain age with pre-trained gradient-boosted trees. Then, we applied SHapley Additive Explanations (SHAP) to identify which brain features influence brain age predictions. We investigated the interaction between the SHAP score for each feature and group as a function of the BAG. These analyses identified total gray matter volume (group × SHAP interaction term β = 1.71 [0.53; 3.23]; p

Identifiers

PMID36624107
PMCPMC9829754
OpenAlexW4313895381

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.