Cited by 315Neurobiology of Language and BilingualismHemispheric Asymmetry in NeuroscienceLanguage Development and Disorders

Late plasticity for language in a child’s non‐dominant hemisphere

Hertz‐Pannier, Lucie, Chiron, Catherine, Jambaqué, Isabelle, Renaux‐Kieffer, Virginie, Moortele, Pierre‐François Van de, Delalande, Olivier, Fohlen, Martine, Brunelle, Francis +1 more·2002·Brain

Abstract

The ability of the right hemisphere to sustain the acquisition or the recovery of language after extensive damage to the left hemisphere has been essentially related to the age at the time of injury. Better language abilities are acquired when the insult occurs in early childhood (perinatal insults) compared with later occurrence. However, while previous studies have described the neuropsychological pattern of language development in typical cases, the neural bases of such plasticity remain unexplored. Non-invasive functional MRI (fMRI) is a unique tool to assess the neural correlates of brain plasticity through repeated studies, but the technique has not been widely used in children because of methodological limitations. Plasticity of language was studied in a boy who developed intractable epilepsy related to Rasmussen's syndrome of the left hemisphere at age 5 years 6 months, after normal language acquisition. The first fMRI study at age 6 years 10 months showed left lateralization of language networks during a word fluency task. After left hemispherotomy at age 9 years, the child experienced profound aphasia and alexia, with rapid recovery of receptive language but slower and incomplete recovery of expressive language and reading. Postoperative fMRI at age 10 years 6 months showed a shift of language-related networks to the right during expressive and receptive tasks. Right activation was seen mainly in regions that could not be detected preoperatively, but mirrored those previously found in the left hemisphere (inferior frontal, temporal and parietal cortex), suggesting reorganization in a pre-existing bilateral network. In addition, neuropsychological data of this case support the hypothesis of innately more bilateral distribution of receptive than expressive language. This first serial fMRI study illustrates the great plasticity of the child's brain and the ability of the right hemisphere to take over some expressive language functions, even at a relatively late age. It also suggests a limit for removal of the dominant hemisphere beyond the age of 6 years, a classical limit for the critical period of language acquisition.

Integrity signals

Registry

Crossref · 10.1093/brain/awf020

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • In a case study, language function transferred from the left to the right hemisphere after left hemispherectomy at 9 years old, suggesting interhemispheric transference was still possible at the age of 9.

    “Scans at 7.5 and 10 years old revealed that language function, measured through BOLD signal pattern, had transferred from the left to the right hemisphere, suggesting interhemispheric transference was still possible at the age of 9”

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Hertz‐Pannier, L., Chiron, C., Jambaqué, I., Renaux‐Kieffer, V., Moortele, P. V. D., Delalande, O., Fohlen, M., Brunelle, F., & Bihan, D. L.
Affiliations
  • Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
  • Institut de Biologie et de Chimie des Protéines (FR)
  • Human Brain Research Center, Graduate School of Medicine, Kyoto University (JP)
Venue
Brain
Published
2002-02-01
Volume
125
Issue
2
Pages
361-372
ISSN
  • 0006-8950 (ISSN-L)
  • 1460-2156
OpenAlex
W2159627797
Cited by
315
References
45
Citations by year
2026: 7 · 2025: 8 · 2024: 10 · 2023: 3 · 2022: 11 · 2021: 5 · 2020: 19 · 2019: 12 · 2018: 10 · 2017: 17 · 2016: 7 · 2015: 15 · 2014: 10 · 2013: 16 · 2012: 15
FWCI
7.68
Type
journal article
Language
en
Open access
closed
Locations
  • Brain (publishedVersion)
  • PubMed (publishedVersion)
Funders
AGE-WELL
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neurobiology of Language and Bilingualism
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Hemispheric Asymmetry in Neuroscience
  • Social Sciences › Psychology › Developmental and Educational Psychology › Language Development and Disorders
Keywords
language lateralization, right hemisphere, Rasmussen encephalitis, hemispherectomy, aphasia, alexia, critical period, receptive language, expressive language, Reading Recovery, pediatric brain injury
MeSH terms
Brain, Brain Mapping, Cerebral Decortication, Child, Encephalitis, Epilepsy, Humans, Language Development, Language Disorders, Language Tests, Functional Laterality, Magnetic Resonance Imaging, Male, Neuronal Plasticity, Tomography, X-Ray Computed

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review