Evidence map›Paper›PMID 30833662›Full record

ArticleScientific reports2019

The homotopic connectivity of the functional brain: a meta-analytic approach.

Lorenzo Mancuso, Tommaso Costa, Andrea Nani, Jordi Manuello, Donato Liloia, Gabriele Gelmini, Melissa Panero, Sergio Duca, Franco Cauda

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In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 3 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

39 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  13. Impaired interhemispheric synchrony and effective connectivity in right temporal lobe epilepsy.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
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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

9 authors.

Lorenzo MancusoFocus Lab, Department of Psychology, University of Turin, Turin, Italy.ORCID http://orcid.org/0000-0002-5529-5040
Tommaso CostaGCS-fMRI, Koelliker Hospital and Department of Psychology, University of Turin, Turin, Italy. tommaso.costa@unito.it.
Andrea NaniGCS-fMRI, Koelliker Hospital and Department of Psychology, University of Turin, Turin, Italy.ORCID http://orcid.org/0000-0003-0753-5537
Jordi ManuelloGCS-fMRI, Koelliker Hospital and Department of Psychology, University of Turin, Turin, Italy.
Donato LiloiaGCS-fMRI, Koelliker Hospital and Department of Psychology, University of Turin, Turin, Italy.
Gabriele GelminiFocus Lab, Department of Psychology, University of Turin, Turin, Italy.
Melissa PaneroFocus Lab, Department of Psychology, University of Turin, Turin, Italy.
Sergio DucaGCS-fMRI, Koelliker Hospital and Department of Psychology, University of Turin, Turin, Italy.
Franco CaudaGCS-fMRI, Koelliker Hospital and Department of Psychology, University of Turin, Turin, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Homotopic connectivity (HC) is the connectivity between mirror areas of the brain hemispheres. It can exhibit a marked and functionally relevant spatial variability, and can be perturbed by several pathological conditions. The voxel-mirrored homotopic connectivity (VMHC) is a technique devised to enquire this pattern of brain organization, based on resting state functional connectivity. Since functional connectivity can be revealed also in a meta-analytical fashion using co-activations, here we propose to calculate the meta-analytic homotopic connectivity (MHC) as the meta-analytic counterpart of the VMHC. The comparison between the two techniques reveals their general similarity, but also highlights regional differences associated with how HC varies from task to rest. Two main differences were found from rest to task: (i) regions known to be characterized by global hubness are more similar than regions displaying local hubness; and (ii) medial areas are characterized by a higher degree of homotopic connectivity, while lateral areas appear to decrease their degree of homotopic connectivity during task performance. These findings show that MHC can be an insightful tool to study how the hemispheres functionally interact during task and rest conditions.

Identifiers

PMID30833662
PMCPMC6399443

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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.