Evidence map›Paper›PMID 32379389›Full record

ArticleHuman brain mapping2020

Probing regional cortical excitability via input-output properties using transcranial magnetic stimulation and electroencephalography coupling.

Estelle Raffin, Sylvain Harquel, Brice Passera, Alan Chauvin, Thierry Bougerol, Olivier David

Open access · goldAbstract read
In one paragraph

Article in Human brain mapping, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Clinical utility and prospective of TMS-EEG: Updated review from an international expert group.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2026
    Review
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  10. Reliability and Validity of Transcranial Magnetic Stimulation-Electroencephalography Biomarkers.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2023
    Review
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  14. Review
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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

6 authors at 2 institutions in 2 countries.

Estelle RaffinUniversity of Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, Grenoble, France.ORCID 0000-0003-3262-5251
Sylvain HarquelCNRS, UMR5105, Laboratoire Psychologie et NeuroCognition, LPNC, University of Grenoble Alpes, Grenoble, France.ORCID 0000-0001-8756-2230
Brice PasseraUniversity of Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, Grenoble, France.
Alan ChauvinCNRS, UMR5105, Laboratoire Psychologie et NeuroCognition, LPNC, University of Grenoble Alpes, Grenoble, France.
Thierry BougerolUniversity of Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, Grenoble, France.
Olivier DavidUniversity of Grenoble Alpes, Inserm, U1216, Grenoble Institut Neurosciences, Grenoble, France.ORCID 0000-0003-0776-0216
Centre National de la Recherche Scientifique · FRInserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The modular organization of the cortex refers to subsets of highly interconnected nodes, sharing specific cytoarchitectural and dynamical properties. These properties condition the level of excitability of local pools of neurons. In this study, we described TMS evoked potentials (TEP) input-output properties to provide new insights into regional cortical excitability. We combined robotized TMS with EEG to disentangle region-specific TEP from threshold to saturation and describe their oscillatory contents. Twenty-two young healthy participants received robotized TMS pulses over the right primary motor cortex (M1), the right dorsolateral prefrontal cortex (DLPFC) and the right superior occipital lobe (SOL) at five stimulation intensities (40, 60, 80, 100, and 120% resting motor threshold) and one short-interval intracortical inhibition condition during EEG recordings. Ten additional subjects underwent the same experiment with a realistic sham TMS procedure. The results revealed interregional differences in the TEPs input-output functions as well as in the responses to paired-pulse conditioning protocols, when considering early local components (<80 ms). Each intensity in the three regions was associated with complex patterns of oscillatory activities. The quality of the regression of TEPs over stimulation intensity was used to derive a new readout for cortical excitability and dynamical properties, revealing lower excitability in the DLPFC, followed by SOL and M1. The realistic sham experiment confirmed that these early local components were not contaminated by multisensory stimulations. This study provides an entirely new analytic framework to characterize input-output relations throughout the cortex, paving the way to a more accurate definition of local cortical excitability.

Indexed as

ElectroencephalographyTranscranial Magnetic StimulationAdultBrain WavesEvoked PotentialsFemaleHumansMaleMotor CortexOccipital LobePrefrontal CortexYoung Adultcortical excitabilityinput-output functionslinear regressionTMS-EEG

Identifiers

PMID32379389
PMCPMC7294059
OpenAlexW3020843646

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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 OpenQuestion graph.