Evidence map›Paper›PMID 30135496›Full record

ArticleScientific reports2018

Interhemispheric connectivity of primary sensory cortex is associated with motor impairment after stroke.

Ilse Frías, Faryn Starrs, Thomas Gisiger, Jeffrey Minuk, Alexander Thiel, Caroline Paquette

Abstract read
In one paragraph

Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing 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

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

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Alteration of Cortical Somatosensory Feedback in Post-Stroke Movement Control.Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference · 2024
    Article
  11. Article
  12. Network Reorganization for Neurophysiological and Behavioral Recovery Following Stroke.Central nervous system agents in medicinal chemistry · 2024
    Review
  13. Article
  14. Article
  15. Article
  16. Post-Ischemic Reorganization of Sensory Responses in Cerebral Cortex.bioRxiv : the preprint server for biology · 2023
    Article
  17. Article
  18. Article
  19. 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

6 authors.

Ilse FríasDepartment of Kinesiology and Physical Education, McGill University, Montreal, Canada.
Faryn StarrsDepartment of Kinesiology and Physical Education, McGill University, Montreal, Canada.
Thomas GisigerCentre for Research on Brain, Language and Music, Montreal, Canada.
Jeffrey MinukDepartment of Neurology and Neurosurgery, McGill University, Montreal, Canada.
Alexander ThielDepartment of Neurology and Neurosurgery, McGill University, Montreal, Canada.
Caroline PaquetteDepartment of Kinesiology and Physical Education, McGill University, Montreal, Canada. caroline.paquette@mcgill.ca.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neuroimaging-derived markers are used to model post-stroke impairment. Among these, lesion size, corticospinal-tract lesion-load (CST-LL) and resting-state functional-connectivity (rs-FC) have been correlated with impairment. It has been shown that the sensory cortex (S1) is associated with motor learning and is essential for post-stroke recovery; yet stroke-induced changes in S1 connectivity alone are yet to be investigated. We aim to determine whether interhemispheric rs-FC could be used to refine imaging models of stroke-related impairment. Subjects' post-stroke and age-matched controls underwent rs-fMRI. Stroke-related disability was correlated with lesion size, CST-LL and interhemispheric S1 and M1 rs-FC as independent seeds. Regression analyses were performed to assess the contribution of these markers in stroke-related deficits. Post-stroke subjects showed an asymmetrical pattern of rs-FC in which affected hemisphere S1 and M1 were mostly connected with ipsi-lesional regions. Correlations between rs-FC and stroke-severity were found. Adding rs-FC of S1 to the regression model of impairment decreased the variance 31% compared to lesion size only. After a stroke, S1 interhemispheric connectivity is decreased, with S1 only connected with ipsi-lesional regions. This asymmetry correlates with neurological and motor impairment. Furthermore, when combined with lesion anatomical measures, S1 connectivity might be an important marker in explaining stroke outcome.

Indexed as

AgedBrain MappingConnectomeFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedMotor ActivityMotor CortexMotor DisordersNerve NetNeuroimagingRecovery of FunctionSomatosensory CortexStroke

Identifiers

PMID30135496
PMCPMC6105621

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Registered trials

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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.