Evidence map›Paper›PMID 26409409›Full record

Trial reportRestorative neurology and neuroscience2015

Anodal direct current stimulation in the healthy aged: Effects determined by the hemisphere stimulated.

Jodie Marquez, Alexander Conley, Frini Karayanidis, Jim Lagopoulos, Mark Parsons

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Restorative neurology and neuroscience, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
–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

14 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  8. [Effects of parameters selection with transcranial direct current stimulation based on real head model].Sheng wu yi xue gong cheng xue za zhi = Journal of biomedical engineering = Shengwu yixue gongchengxue zazhi · 2021
    Article
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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

5 authors.

Jodie MarquezFaculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia.
Alexander ConleyHunter Medical Institute, New Lambton, NSW, Australia.
Frini KarayanidisHunter Medical Institute, New Lambton, NSW, Australia.
Jim LagopoulosBrain and Mind Institute, Sydney University, Sydney, NSW, Australia.
Mark ParsonsFaculty of Health and Medicine, University of Newcastle, Callaghan, NSW, Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeResearch popularity and scope for the application of transcranial direct current stimulation have been steadily increasing yet many fundamental questions remain unanswered. We sought to determine if anodal stimulation of either hemisphere leads to improved performance of the contralateral hand and/or altered function of the ipsilateral hand, or affects movement preparation, in older subjects.

methodIn this cross-over, double blind, sham controlled study, 34 healthy aged participants (age range 40- 86) were randomised to receive 20 minutes of stimulation to either the dominant or non-dominant motor cortex. The primary outcome was functional performance of both upper limbs measured by the Jebsen Taylor Test and hand grip strength. Additionally, we measured motor preparation using electrophysiological (EEG) recordings.

resultsAnodal stimulation resulted in statistically significantly improved performance of the non-dominant hand (p < 0.01) but did not produce significant changes in the dominant hand on any measure (p > 0.05). This effect occurred irrespective of the hemisphere stimulated. Stimulation did not produce significant effects on measures of gross function, grip strength, reaction times, or electrophysiological measures on the EEG data.

conclusionThis study demonstrated that the hemispheres respond differently to anodal stimulation and the response appears to be task specific but not mediated by age.

Indexed as

AdultAgedAged, 80 and overAgingCross-Over StudiesDouble-Blind MethodElectroencephalographyFemaleFunctional LateralityHumansMaleMiddle AgedMotor ActivityMotor CortexReaction TimeTranscranial Direct Current StimulationageingtDCStranscranial direct current stimulationupper limb function

Identifiers

PMID26409409
PMCPMC4923724

What OpenQuestion holds

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LicenceCC BY-NC
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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.