Evidence map›Paper›PMID 32067914›Full record

ArticleClinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology2020

Abnormal patterns of corticomuscular and intermuscular coherence in childhood dystonia.

Verity M McClelland, Zoran Cvetkovic, Jean-Pierre Lin, Kerry R Mills, Peter Brown

Open access · hybridAbstract read
In one paragraph

Article in Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

14 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Article
  6. Observational
  7. Article
  8. Article
  9. Sensory tricks modulate corticocortical and corticomuscular connectivity in cervical dystonia.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2021
    Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
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 3 institutions in 1 country.

Verity M McClellandDepartment of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, United Kingdom; Children's Neurosciences Department, Evelina London Children's Hospital, Guy's and St Thomas NHS Foundation Trust, London, United Kingdom. Electronic address: verity.mcclelland@kcl.ac.uk.
Zoran CvetkovicDepartment of Informatics, King's College London, United Kingdom. Electronic address: zoran.cvetkovic@kcl.ac.uk.
Jean-Pierre LinChildren's Neurosciences Department, Evelina London Children's Hospital, Guy's and St Thomas NHS Foundation Trust, London, United Kingdom. Electronic address: jean-pierre.lin@gstt.nhs.uk.
Kerry R MillsDepartment of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, United Kingdom. Electronic address: kerry.mills@kcl.ac.uk.
Peter BrownMedical Research Council Brain Network Dynamics Unit and Nuffield Department of Clinical Neurosciences, University of Oxford, United Kingdom. Electronic address: peter.brown@ndcn.ox.ac.uk.
King's College London · GBEvelina London Children's Healthcare · GBUniversity of Oxford · GB

Funding

Medical Research Council MC_UU_00003/2Medical Research Council MC_UU_12024/1Medical Research Council MR/P006868/1
6 · The paper itself

Abstract

objectiveSensorimotor processing is abnormal in Idiopathic/Genetic dystonias, but poorly studied in Acquired dystonias. Beta-Corticomuscular coherence (CMC) quantifies coupling between oscillatory electroencephalogram (EEG) and electromyogram (EMG) activity and is modulated by sensory stimuli. We test the hypothesis that sensory modulation of CMC and intermuscular coherence (IMC) is abnormal in Idiopathic/Genetic and Acquired dystonias.

methodsParticipants: 11 children with Acquired dystonia, 5 with Idiopathic/Genetic dystonia, 13 controls (12-18 years). CMC and IMC were recorded during a grasp task, with mechanical perturbations provided by an electromechanical tapper. Coherence patterns pre- and post-stimulus were compared across groups.

resultsBeta-CMC increased post-stimulus in Controls and Acquired dystonia (p = 0.001 and p = 0.010, respectively), but not in Idiopathic/Genetic dystonia (p = 0.799). The modulation differed between groups, being larger in both Controls and Acquired dystonia compared with Idiopathic/Genetic dystonia (p = 0.003 and p = 0.022). Beta-IMC increased significantly post-stimulus in Controls (p = 0.004), but not in dystonia. Prominent 4-12 Hz IMC was seen in all dystonia patients and correlated with severity (rho = 0.618).

conclusionIdiopathic/Genetic and Acquired dystonia share an abnormal low-frequency IMC. In contrast, sensory modulation of beta-CMC differed between the two groups. SIGNIFICANCE: The findings suggest that sensorimotor processing is abnormal in Acquired as well as Idiopathic/Genetic dystonia, but that the nature of the abnormality differs.

Indexed as

AdolescentChildDystoniaDystonic DisordersElectroencephalographyElectromyographyFemaleHand StrengthHumansMaleMotor CortexMuscle, SkeletalPsychomotor PerformanceChildrenCorticomuscular coherenceDystoniaIntermuscular coherenceSensorimotor integration

Identifiers

PMID32067914
PMCPMC7083222
OpenAlexW3004834228

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.