Evidence map›Paper›PMID 31376589›Full record

ArticleDevelopmental cognitive neuroscience2019

Structural and functional asymmetry of the language network emerge in early childhood.

Jess E Reynolds, Xiangyu Long, Melody N Grohs, Deborah Dewey, Catherine Lebel

Abstract read
In one paragraph

Article in Developmental cognitive neuroscience, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
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  5. The emergence of the language system in the toddler brain.bioRxiv : the preprint server for biology · 2026
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  11. Longitudinal trajectories of brain development from infancy to school age and their relationship with literacy development.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  17. Musicianship and Prominence of Interhemispheric Connectivity Determine Two Different Pathways to Atypical Language Dominance.The Journal of neuroscience : the official journal of the Society for Neuroscience · 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

5 authors.

Jess E ReynoldsDepartment of Radiology, Canada; Owerko Centre, Alberta Children Hospital Research Institute, Canada; Hotchkiss Brain Institute, Canada.
Xiangyu LongDepartment of Radiology, Canada; Owerko Centre, Alberta Children Hospital Research Institute, Canada; Hotchkiss Brain Institute, Canada.
Melody N GrohsOwerko Centre, Alberta Children Hospital Research Institute, Canada; Department of Neuroscience, Canada; Cumming School of Medicine, Canada.
Deborah DeweyOwerko Centre, Alberta Children Hospital Research Institute, Canada; Hotchkiss Brain Institute, Canada; Department of Pediatrics, Canada; Department of Community Health Sciences, Canada.
Catherine LebelDepartment of Radiology, Canada; Owerko Centre, Alberta Children Hospital Research Institute, Canada; Hotchkiss Brain Institute, Canada. Electronic address: clebel@ucalgary.ca.

Funding

CIHR IHD-134090CIHR MOP-136797
6 · The paper itself

Abstract

Structural and functional neuroimaging studies show language and reading processes are left-lateralized, and associated with a dispersed group of left brain regions. However, it is unclear when and how asymmetry of these regions emerges. We characterized the development of structural and functional asymmetry of the language network in 386 datasets from 117 healthy children (58 male) across early childhood (2-7.5 years). Structural asymmetry was investigated using diffusion tensor imaging (DTI) and manual delineation of the arcuate fasciculus. Functional connectivity asymmetry was calculated from seed regions in the inferior frontal gyrus (IFG) and middle temporal gyrus (MTG). We show that macrostructural asymmetry of the arcuate fasciculus is present by age 2 years, while leftward asymmetry of microstructure and functional connectivity with the IFG increases across the age range. This emerging microstructural and functional asymmetry likely underlie the development of language and reading skills during this time.

Indexed as

Language DevelopmentBrain MappingChildChild, PreschoolDiffusion Tensor ImagingFemaleFunctional LateralityFunctional NeuroimagingHumansLanguageMagnetic Resonance ImagingMaleNerve NetPrefrontal CortexWhite MatterArcuate FasciculusAsymmetryDiffusion tensor imagingLateralizationPrereadingResting State fMRI

Identifiers

PMID31376589
PMCPMC6969356

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.