Evidence map›Paper›PMID 23800790›Full record

ArticleNeuroImage2013

The EEG correlates of the TMS-induced EMG silent period in humans.

Faranak Farzan, Mera S Barr, Sylco S Hoppenbrouwers, Paul B Fitzgerald, Robert Chen, Alvaro Pascual-Leone, Zafiris J Daskalakis

Open access · greenAbstract read
In one paragraph

Article in NeuroImage, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed, 4 pooled it
7.0field-weighted citation impact, top 3% 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

66 citing papers in PubMed, 4 syntheses or guidelines pooled it, 146 citations in OpenAlex.

  1. Pooled it
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  4. Pooled it
  5. Trial
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  8. TMS-EEG signatures of GABAergic neurotransmission in the human cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Trial
  9. Review
  10. Article
  11. Article
  12. 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
  13. Article
  14. Article
  15. Article
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6 more citing papers are in PubMed but not listed here.

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

7 authors at 6 institutions in 5 countries.

Faranak FarzanBerenson-Allen Center for Non-invasive Brain Stimulation, Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA. Electronic address: ffarzan@bidmc.harvard.edu.
Mera S Barr
Sylco S Hoppenbrouwers
Paul B Fitzgerald
Robert Chen
Alvaro Pascual-Leone
Zafiris J Daskalakis
Berenson Allen Center for Noninvasive Brain Stimulation · USCentre for Addiction and Mental Health · CAMonash University · AUToronto Western Hospital · CAUniversity of Toronto · CAUtrecht University · NL

Funding

HARVARD CLINICAL AND TRANSLATIONAL SCIENCE CENTER (UL1)UL1RR025758 · NCRR · HARVARD MEDICAL SCHOOL · PI NADLER, LEE MARSHALL · 2008 to 2011
$91.4M
ZD6416 Analgesic--Painful Distal Symmetrical PolyneuropaM01RR001066 · NCRR · MASSACHUSETTS GENERAL HOSPITAL · PI HOGE, ELIZABETH A · 1985 to 2008
$37.4M
CIHR 201102MFE-246635-181538NCRR NIH HHS M01 RR001066NCRR NIH HHS M01-RR-01066NCRR NIH HHS UL1 RR025758
6 · The paper itself

Abstract

Application of magnetic or electrical stimulation to the motor cortex can result in a period of electromyography (EMG) silence in a tonically active peripheral muscle. This period of EMG silence is referred to as the silent period (SP). The duration of SP shows intersubject variability and reflects the integrity of cortical and corticospinal pathways. A non-invasive technique for assessing the duration of SP is the combination of Transcranial Magnetic Stimulation (TMS) with EMG. Utilizing TMS-EMG, several studies have reported on the shortening or lengthening of SP in neuropsychiatric disorders such as schizophrenia, bipolar disorder, depression, obsessive compulsive disorder, epilepsy, Parkinson's disease, and stroke. However, cortical, corticospinal and peripheral components are difficult to disentangle from EMG alone. Here, we use the multimodal neuroimaging technique of TMS-EMG combined with concurrent electroencephalography (EEG) recording to further examine the cortical origin of SP and the cortical oscillatory activity that underlies SP genesis. We demonstrate that the duration of SP is related to the temporal characteristics of the cortical reactivity and the power of delta to alpha oscillations in both local and remote areas ipsilateral and contralateral to the stimulation site, and beta oscillations locally. We illustrate that, compared to EMG, the EEG indices of the SP provide additional information about the brain dynamics and propose that the EEG measures of SP may be used in future clinical and research investigations to more precisely delineate the mechanisms underlying inhibitory impairments.

Indexed as

AdultAlpha RhythmBiological ClocksBrain MappingCortical Spreading DepressionElectroencephalographyElectromyographyEvoked Potentials, MotorFemaleHumansMaleMotor CortexMuscle ContractionNeural InhibitionReproducibility of ResultsSensitivity and SpecificityCortical inhibitionCortical oscillationsElectroencephalographyElectromyographyGABAMotor cortexTranscranial magnetic stimulation

Identifiers

PMID23800790
PMCPMC4211432
OpenAlexW2135965291

What OpenQuestion holds

Textmetadata
LicenceTDM
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.