Evidence map›Paper›PMID 38580858›Full record

Trial reportEuropean archives of psychiatry and clinical neuroscience2025

Change in brain activation after transcranial pulsed electromagnetic fields in treatment-resistant depression.

Sjoerd M van Belkum, Esther M Opmeer, Hanneke Geugies, Marrit K de Boer, Robert A Schoevers, André Aleman

Abstract readRandomized Controlled TrialMulticenter Study
In one paragraph

Trial report in European archives of psychiatry and clinical neuroscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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

1 citing paper in PubMed.

  1. Review
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

6 authors.

Sjoerd M van BelkumDepartment of Psychiatry, Research School of Behavioral and Cognitive Neurosciences (BCN), Interdisciplinary Center Psychopathology of Emotion Regulation (ICPE), University Medical Center Groningen, University of Groningen, PO Box 30.001 (CC30), 9700 RB, Groningen, The Netherlands. s.m.van.belkum@umcg.nl.ORCID http://orcid.org/0000-0002-2664-1717
Esther M OpmeerDepartment of Neuroscience, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
Hanneke GeugiesDepartment of Psychiatry, Research School of Behavioral and Cognitive Neurosciences (BCN), Interdisciplinary Center Psychopathology of Emotion Regulation (ICPE), University Medical Center Groningen, University of Groningen, PO Box 30.001 (CC30), 9700 RB, Groningen, The Netherlands.
Marrit K de BoerDepartment of Psychiatry, Research School of Behavioral and Cognitive Neurosciences (BCN), Interdisciplinary Center Psychopathology of Emotion Regulation (ICPE), University Medical Center Groningen, University of Groningen, PO Box 30.001 (CC30), 9700 RB, Groningen, The Netherlands.
Robert A SchoeversDepartment of Psychiatry, Research School of Behavioral and Cognitive Neurosciences (BCN), Interdisciplinary Center Psychopathology of Emotion Regulation (ICPE), University Medical Center Groningen, University of Groningen, PO Box 30.001 (CC30), 9700 RB, Groningen, The Netherlands.
André AlemanDepartment of Neuroscience, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.

Funding

Fonds NutsOhra project 1103-068UMCG Innovation Fund project U-11-221
6 · The paper itself

Abstract

backgroundPreliminary evidence suggests antidepressant effects of transcranial pulsed electromagnetic fields (tPEMF). However, the precise mechanism of action in the brain is still unknown. The aim of this study was to investigate the influence of tPEMF on brain activation in patients with treatment-resistant depression (TRD) by studying two processes that might be of particular interest in relation to the symptoms of depression: emotional processing and reward processing.

methodsEligible participants (n = 50) with TRD in this sham-controlled double-blind multicenter trial [registered at the Dutch Trial Register ( http://www.trialregister.nl ), NTR3702] were randomly assigned to five weeks daily active or sham tPEMF. Pre- and post-treatment functional MR-scans were made during which participants performed a social-emotional task and a reward task.

resultsParticipants in the active treatment group showed a stronger decrease in activation post-treatment compared to sham during reward-outcome processing in the left inferior frontal gyrus and in a cluster comprising the right lingual gyrus and the posterior part of the middle temporal gyrus. No effect of tPEMF was found on activation during the social-emotional task. Neurostimulation with tPEMF did also not affect behavioral performance for both tasks.

conclusionsWe found a decrease in reward-related activation as a result of tPEMF stimulation, while no effect of tPEMF on social-emotional processing was found. The treatment-related reduction in activation of regulatory regions may reflect normalization and may have implications for anhedonia. These findings suggest that there is an effect of tPEMF on brain activation of relevant circuits, albeit in the absence of a clinical antidepressant effect.

Indexed as

BrainDepressive Disorder, Treatment-ResistantRewardTranscranial Magnetic StimulationAdultDouble-Blind MethodEmotionsFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedDepressionfMRIMDDReward-processingTMStPEMF

Identifiers

PMID38580858
PMCPMC12148970

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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.