Evidence map›Paper›PMID 28719422›Full record

ArticleNeuroreport2017

Polarity-independent effects of transcranial direct current stimulation over the bilateral opercular somatosensory region: a magnetoencephalography study.

Kei Nakagawa, Soichiro Koyama, Koji Inui, Satoshi Tanaka, Ryusuke Kakigi, Norihiro Sadato

Abstract read
In one paragraph

Article in Neuroreport, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

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

  1. Brain stimulation targets for chronic pain: Insights from meta-analysis, functional connectivity and literature review.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2024
    Pooled it
  2. Trial
  3. Article
  4. 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

6 authors.

Kei NakagawaaDivision of Bio-Environmental Adaptation Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima bDepartment of Integrative Physiology cDepartment of Cerebral Research, Division of Cerebral Integration, National Institute for Physiological Sciences, Okazaki dDepartment of Physiological Sciences, SOKENDAI (The Graduate University for Advanced Studies), Hayama eFaculty of Rehabilitation, School of Health Sciences, Fujita Health University, Toyoake fLaboratory of Psychology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Soichiro Koyama
Koji Inui
Satoshi Tanaka
Ryusuke Kakigi
Norihiro Sadato

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The opercular somatosensory region (OP) plays an indispensable role in pain perception. In the present study, we investigated the neurophysiological effects of transcranial direct current stimulation (tDCS) over the OP. Somatosensory-evoked magnetic fields following noxious intraepidermal electrical stimulation to the left index finger (pain-SEFs) were recorded before and after tDCS with a single-blind, sham-controlled, cross-over trial design. Three tDCS conditions of left anodal/right cathodal tDCS, left cathodal/right anodal tDCS (each, 2 mA, 12 min), and sham tDCS (2 mA, 15 s) were applied. Despite the subjective pain sensation being unaltered, the two anodal (real) interventions significantly decreased OP activity associated with pain-SEFs. In conclusion, tDCS over the OP with the present parameters did not have a significant impact on pain sensation, but modulated its cortical processing.

Indexed as

MagnetoencephalographyTranscranial Direct Current StimulationAdultAnalysis of VarianceCross-Over StudiesEvoked Potentials, AuditoryFemaleFunctional LateralityHumansMalePainPain MeasurementPhysical StimulationSingle-Blind MethodSomatosensory Cortex

Identifiers

PMID28719422
PMCPMC5548507

What OpenQuestion holds

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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.