Evidence map›Paper›PMID 30659193›Full record

ArticleNPJ schizophrenia2019

Towards artificial intelligence in mental health by improving schizophrenia prediction with multiple brain parcellation ensemble-learning.

Sunil Vasu Kalmady, Russell Greiner, Rimjhim Agrawal, Venkataram Shivakumar, Janardhanan C Narayanaswamy, Matthew R G Brown, Andrew J Greenshaw, Serdar M Dursun, Ganesan Venkatasubramanian

Open access · goldAbstract read
In one paragraph

Article in NPJ schizophrenia, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 5 pooled it
7.9field-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

48 citing papers in PubMed, 5 syntheses or guidelines pooled it, 121 citations in OpenAlex.

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  14. Improving Psychiatry Services with Artificial Intelligence: Opportunities and Challenges.Turk psikiyatri dergisi = Turkish journal of psychiatry · 2024
    Review
  15. Article
  16. Reinforcement learning deficits exhibited by postnatal PCP-treated rats enable deep neural network classification.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
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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

9 authors at 2 institutions in 2 countries.

Sunil Vasu KalmadyAlberta Machine Intelligence Institute, Department of Computing Science, University of Alberta, Edmonton, AB, Canada. kalmady@ualberta.ca.ORCID http://orcid.org/0000-0002-4876-9121
Russell GreinerAlberta Machine Intelligence Institute, Department of Computing Science, University of Alberta, Edmonton, AB, Canada.
Rimjhim AgrawalTranslational Psychiatry Laboratory, Neurobiology Research Centre, National Institute of Mental Health and Neuro Sciences, Bangalore, India.
Venkataram ShivakumarThe Schizophrenia Clinic, Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bangalore, India.
Janardhanan C NarayanaswamyThe Schizophrenia Clinic, Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bangalore, India.
Matthew R G BrownAlberta Machine Intelligence Institute, Department of Computing Science, University of Alberta, Edmonton, AB, Canada.
Andrew J GreenshawDepartment of Psychiatry, University of Alberta, Edmonton, AB, Canada.
Serdar M DursunDepartment of Psychiatry, University of Alberta, Edmonton, AB, Canada.
Ganesan VenkatasubramanianThe Schizophrenia Clinic, Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bangalore, India. gvs@nimhans.ac.in.
University of Alberta · CANational Institute of Mental Health and Neurosciences · IN

Funding

Department of Science and Technology, Ministry of Science and Technology (DST) DST/SJF/LSA-02/2014-15Indian Council of Medical Research (ICMR) DHR/HRD/Young Scientist/Type-VI-(2)/2015Mitacs IT09558Wellcome Trust
6 · The paper itself

Abstract

In the literature, there are substantial machine learning attempts to classify schizophrenia based on alterations in resting-state (RS) brain patterns using functional magnetic resonance imaging (fMRI). Most earlier studies modelled patients undergoing treatment, entailing confounding with drug effects on brain activity, and making them less applicable to real-world diagnosis at the point of first medical contact. Further, most studies with classification accuracies >80% are based on small sample datasets, which may be insufficient to capture the heterogeneity of schizophrenia, limiting generalization to unseen cases. In this study, we used RS fMRI data collected from a cohort of antipsychotic drug treatment-naive patients meeting DSM IV criteria for schizophrenia (N = 81) as well as age- and sex-matched healthy controls (N = 93). We present an ensemble model -- EMPaSchiz (read as 'Emphasis'; standing for 'Ensemble algorithm with Multiple Parcellations for Schizophrenia prediction') that stacks predictions from several 'single-source' models, each based on features of regional activity and functional connectivity, over a range of different a priori parcellation schemes. EMPaSchiz yielded a classification accuracy of 87% (vs. chance accuracy of 53%), which out-performs earlier machine learning models built for diagnosing schizophrenia using RS fMRI measures modelled on large samples (N > 100). To our knowledge, EMPaSchiz is first to be reported that has been trained and validated exclusively on data from drug-naive patients diagnosed with schizophrenia. The method relies on a single modality of MRI acquisition and can be readily scaled-up without needing to rebuild parcellation maps from incoming training images.

Identifiers

PMID30659193
PMCPMC6386753
OpenAlexW2910630059

What Socratic 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 Socratic graph.