Evidence map›Paper›PMID 38879590›Full record

ArticleSchizophrenia (Heidelberg, Germany)2024

Excitation/inhibition imbalance in schizophrenia: a meta-analysis of inhibitory and excitatory TMS-EMG paradigms.

Orsolya Lányi, Boróka Koleszár, Alexander Schulze Wenning, David Balogh, Marie Anne Engh, András Attila Horváth, Péter Fehérvari, Péter Hegyi, Zsolt Molnár, Zsolt Unoka and 1 more

Abstract read
In one paragraph

Article in Schizophrenia (Heidelberg, Germany), 2024. 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
–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.

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.

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  7. Mesocorticostriatal Reinforcement Learning of State Representation and Value with Implications for the Mechanisms of Schizophrenia.The Journal of neuroscience : the official journal of the Society for Neuroscience · 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

11 authors.

Orsolya LányiCentre for Translational Medicine, Semmelweis University, Budapest, Hungary.
Boróka KoleszárDepartment of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary.
Alexander Schulze WenningCentre for Translational Medicine, Semmelweis University, Budapest, Hungary.
David BaloghDepartment of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary.
Marie Anne EnghCentre for Translational Medicine, Semmelweis University, Budapest, Hungary.
András Attila HorváthNeurocognitive Research Center, Nyírő Gyula National Institute of Psychiatry and Addictology, Budapest, Hungary.
Péter FehérvariCentre for Translational Medicine, Semmelweis University, Budapest, Hungary.
Péter HegyiCentre for Translational Medicine, Semmelweis University, Budapest, Hungary.
Zsolt MolnárCentre for Translational Medicine, Semmelweis University, Budapest, Hungary.
Zsolt UnokaDepartment of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary.
Gábor CsuklyDepartment of Psychiatry and Psychotherapy, Semmelweis University, Budapest, Hungary. csukly.gabor@med.semmelweis-univ.hu.ORCID http://orcid.org/0000-0002-5006-9407

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cortical excitation-inhibition (E/I) imbalance is a potential model for the pathophysiology of schizophrenia. Previous research using transcranial magnetic stimulation (TMS) and electromyography (EMG) has suggested inhibitory deficits in schizophrenia. In this meta-analysis we assessed the reliability and clinical potential of TMS-EMG paradigms in schizophrenia following the methodological recommendations of the PRISMA guideline and the Cochrane Handbook. The search was conducted in three databases in November 2022. Included articles reported Short-Interval Intracortical Inhibition (SICI), Intracortical Facilitation (ICF), Long-Interval Intracortical Inhibition (LICI) and Cortical Silent Period (CSP) in patients with schizophrenia and healthy controls. Meta-analyses were conducted using a random-effects model. Subgroup analysis and meta-regressions were used to assess heterogeneity. Results of 36 studies revealed a robust inhibitory deficit in schizophrenia with a significant decrease in SICI (Cohen's d: 0.62). A trend-level association was found between SICI and antipsychotic medication. Our findings support the E/I imbalance hypothesis in schizophrenia and suggest that SICI may be a potential pathophysiological characteristic of the disorder.

Identifiers

PMID38879590
PMCPMC11180212

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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.