Evidence map›Paper›PMID 23434439›Full record

ArticleClinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology2013

Pulse width dependence of motor threshold and input-output curve characterized with controllable pulse parameter transcranial magnetic stimulation.

Angel V Peterchev, Stefan M Goetz, Gregory G Westin, Bruce Luber, Sarah H Lisanby

Abstract read
In one paragraph

Article in Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
5.9field-weighted citation impact, top 4% 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

62 citing papers in PubMed, 166 citations in OpenAlex.

  1. Trial
  2. Neurocognitive Effects of Combined Electroconvulsive Therapy (ECT) and Venlafaxine in Geriatric Depression: Phase 1 of the PRIDE Study.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2020
    Trial
  3. Efficient and reliable characterization of the corticospinal system using transcranial magnetic stimulation.Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society · 2014
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  15. Abnormalities of cortical stimulation strength-duration time constant in amyotrophic lateral sclerosis.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2024
    Article
  16. Article
  17. Electric-field-based dosing for TMS.Imaging neuroscience (Cambridge, Mass.) · 2024
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2 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

5 authors at 2 institutions in 1 country.

Angel V PeterchevDepartment of Psychiatry and Behavioral Sciences, Duke University, Durham, NC 27710, USA. angel.peterchev@duke.edu
Stefan M Goetz
Gregory G Westin
Bruce Luber
Sarah H Lisanby
Duke University · USUniversity of California, Davis · US

Funding

MAGNETIC STIMULATION THERAPY: A NEW CONVULSIVE TREATMENTR01MH060884 · NIMH · NEW YORK STATE PSYCHIATRIC INSTITUTE DBA RESEARCH FOUNDATION FOR MENTAL HYGIENE, INC · PI LISANBY, SARAH H · 2000 to 2008
$3.5M
2/8-Prolonging Remission in Depressed Elderly (PRIDE)U01MH084241 · NIMH · DUKE UNIVERSITY · PI WEINER, RICHARD D. · 2009 to 2013
$2.1M
Rational Dosing for Electric and Magnetic Seizure TherapyR01MH091083 · NIMH · DUKE UNIVERSITY · PI PETERCHEV, ANGEL V · 2010 to 2015
$1.9M
Development of a Novel TMS Device with Controllable Pulse Shape (cTMS)R21EB006855 · NIBIB · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI PETERCHEV, ANGEL V · 2007 to 2008
$417k
NIBIB NIH HHS R21 EB006855NIBIB NIH HHS R21EB006855NIMH NIH HHS 5R01MH060884-09NIMH NIH HHS 5U01MH084241-02NIMH NIH HHS R01 MH060884NIMH NIH HHS R01 MH091083NIMH NIH HHS R01MH091083-01NIMH NIH HHS U01 MH084241
6 · The paper itself

Abstract

objectiveTo demonstrate the use of a novel controllable pulse parameter TMS (cTMS) device to characterize human corticospinal tract physiology.

methodsMotor threshold and input-output (IO) curve of right first dorsal interosseus were determined in 26 and 12 healthy volunteers, respectively, at pulse widths of 30, 60, and 120 μs using a custom-built cTMS device. Strength-duration curve rheobase and time constant were estimated from the motor thresholds. IO slope was estimated from sigmoid functions fitted to the IO data.

resultsAll procedures were well tolerated with no seizures or other serious adverse events. Increasing pulse width decreased the motor threshold and increased the pulse energy and IO slope. The average strength-duration curve time constant is estimated to be 196 μs, 95% CI [181 μs, 210 μs]. IO slope is inversely correlated with motor threshold both across and within pulse width. A simple quantitative model explains these dependencies.

conclusionsOur strength-duration time constant estimate compares well to published values and may be more accurate given increased sample size and enhanced methodology. Multiplying the IO slope by the motor threshold may provide a sensitive measure of individual differences in corticospinal tract physiology. SIGNIFICANCE: Pulse parameter control offered by cTMS provides enhanced flexibility that can contribute novel insights in TMS studies.

Indexed as

AdolescentAdultBiophysical PhenomenaBiophysicsElectroencephalographyElectromyographyEvoked Potentials, MotorFemaleHumansMaleMiddle AgedMotor CortexTime FactorsTranscranial Magnetic StimulationYoung Adult

Identifiers

PMID23434439
PMCPMC3664250
OpenAlexW2061766732

What OpenQuestion holds

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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.