Evidence map›Paper›PMID 33274350›Full record

ArticleFrontiers in neurology and neuroscience research2020

Transcranial Direct Current Stimulation (tDCS) Can Alter Cortical Excitability of the Lower Extremity in Healthy Participants: A Review and Methodological Study.

John Tyler Floyd, Chad Lairamore, Mark Kevin Garrision, Adam J Woods, Jacqueline L Rainey, Thomas Kiser, Prasad R Padala, Mark Mennemeier

Open access · greenAbstract read
In one paragraph

Article in Frontiers in neurology and neuroscience research, 2020. 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
0.2field-weighted citation impact, top 44% 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

1 citing paper in PubMed, 2 citations in OpenAlex.

  1. Article
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

8 authors at 1 institution in 1 country.

John Tyler FloydUniversity of Central Arkansas, Department of Physical Therapy, Conway, AR, USA 72035.ORCID 0000-0002-2423-6777
Chad LairamoreWestern University of Health Sciences, Department of Physical Therapy Education, Lebanon, OR 97355.ORCID 0000-0002-3437-6693
Mark Kevin GarrisionUniversity of Central Arkansas, Department of Physical Therapy, Conway, AR, USA 72035.ORCID 0000-0003-3012-1180
Adam J WoodsUniversity of Florida, Department of Clinical and Health Psychology, Gainesville, FL 32610.ORCID 0000-0002-0786-0236
Jacqueline L RaineyUniversity of Central Arkansas, Department of Health Sciences, Conway, AR, USA 72035.
Thomas KiserUniversity of Arkansas for Medical Sciences, Department of Physical Medicine and Rehabilitation, Little Rock, AR 72205.ORCID 0000-0001-6650-8745
Prasad R PadalaGeriatric Research Education and Clinical Center, Central Arkansas Veterans Healthcare System, Little Rock, AR 72205.ORCID 0000-0003-1921-9806
Mark MennemeierUniversity of Central Arkansas, Department of Physical Therapy, Conway, AR, USA 72035.ORCID 0000-0003-3234-9744
Central Arkansas Veterans Healthcare System · US

Funding

Understanding Hesitant AdoptersP20GM103429 · NIGMS · UNIV OF ARKANSAS FOR MED SCIS · PI Lawrence E Cornett, JERRY WARE · 2012 to 2026
$60.9M
Arkansas Center for Clinical and Translational ResearchUL1TR000039 · NCATS · UNIV OF ARKANSAS FOR MED SCIS · PI BECK, CORNELIA MARIE, JAMES, LAURA P · 2012 to 2014
$10.0M
Telemedicine CoreP30GM110702 · NIGMS · UNIV OF ARKANSAS FOR MED SCIS · PI GARCIA-RILL, EDGAR E. · 2014 to 2018
$6.1M
Center for Translational NeuroscienceP20GM103425 · NIGMS · UNIV OF ARKANSAS FOR MED SCIS · PI GARCIA-RILL, EDGAR E. · 2012 to 2013
$4.1M
Expanding Translational Research in ArkansasU54TR001629 · NCATS · UNIV OF ARKANSAS FOR MED SCIS · PI JAMES, LAURA P · 2017 to 2017
$3.5M
Neuromodulation of Cognition in Older AdultsK01AG050707 · NIA · UNIVERSITY OF FLORIDA · PI WOODS, ADAM J. · 2016 to 2020
$613k
Maintenace rTMS for chronic tinnitus reliefR21DC011824 · NIDCD · UNIV OF ARKANSAS FOR MED SCIS · PI MENNEMEIER, MARK S · 2012 to 2013
$395k
NCATS NIH HHS U54 TR001629NCATS NIH HHS UL1 TR000039NIA NIH HHS K01 AG050707NIDCD NIH HHS R21 DC011824NIGMS NIH HHS P20 GM103425NIGMS NIH HHS P20 GM103429NIGMS NIH HHS P30 GM110702RRD VA I01 RX002638
6 · The paper itself

Abstract

objectiveTranscranial direct current stimulation (tDCS) has been used to alter cortical excitability of the lower extremity (LE) and to influence performance on LE tasks like ankle tracking accuracy; but no study, to our knowledge, ever reported a significant change in cortical excitability relative to sham-tDCS. Additionally, because several different electrode montages were used in previous studies, it is difficult to know how stimulation should be applied to achieve this effect. Our objective was to determine whether active-tDCS alters cortical excitability of the LE and ankle tracking accuracy relative to sham-tDCS in healthy participants. The efficacy of two electrode montages and two conductance mediums were compared.

methodsA triple-blind, fully randomized, within-subjects study was conducted with healthy participants (N=18, 24.2 (6.6) years). Cortical recruitment curves and measures of ankle tracking accuracy for the dominant lower extremity were obtained before and after participants received active-tDCS at 2 milliamps for 20 minutes using montage-medium combinations of M

resultsThe motor evoked potential maximum of the recruitment curve was significantly lower for active than sham-tDCS, but only for the M

conclusionsThis is the first study to our knowledge to demonstrate a significant difference in cortical excitability of the LE between active and sham-tDCS conditions. Given the order in which the experimental procedures occurred, the result is consistent with the concept of a homeostatic plasticity response.

Identifiers

PMID33274350
PMCPMC7710335
OpenAlexW3108451124

What OpenQuestion holds

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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.