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The brain signature of emerging reading in two contrasting languages
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In: ISSN: 1053-8119 ; EISSN: 1095-9572 ; NeuroImage ; https://hal.archives-ouvertes.fr/hal-03378004 ; NeuroImage, Elsevier, 2021, 225, pp.117503. ⟨10.1016/j.neuroimage.2020.117503⟩ (2021)
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Functional reorganization of the reading network in the course of foreign language acquisition ...
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Neural patterns of word processing differ in children with dyslexia and isolated spelling deficit
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In: Brain Struct Funct (2021)
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Neural network for Braille reading and the speech-reading convergence in the blind: Similarities and differences to visual reading
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Temporal Dynamics of Brain White Matter Plasticity in Sighted Subjects during Tactile Braille Learning: A Longitudinal Diffusion Tensor Imaging Study
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In: J Neurosci (2021)
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Abstract:
The white matter (WM) architecture of the human brain changes in response to training, though fine-grained temporal characteristics of training-induced white matter plasticity remain unexplored. We investigated white matter microstructural changes using diffusion tensor imaging at five different time points in 26 sighted female adults during 8 months of training on tactile braille reading. Our results show that training-induced white matter plasticity occurs both within and beyond the trained sensory modality, as reflected by fractional anisotropy (FA) increases in somatosensory and visual cortex, respectively. The observed changes followed distinct time courses, with gradual linear FA increase along the training in the somatosensory cortex and sudden visual cortex cross-modal plasticity occurring after braille input became linguistically meaningful. WM changes observed in these areas returned to baseline after the cessation of learning in line with the supply–demand model of plasticity. These results also indicate that the temporal dynamics of microstructural plasticity in different cortical regions might be modulated by the nature of computational demands. We provide additional evidence that observed FA training-induced changes are behaviorally relevant to tactile reading. Together, these results demonstrate that WM plasticity is a highly dynamic process modulated by the introduction of novel experiences. SIGNIFICANCE STATEMENT Throughout the lifetime the human brain is shaped by various experiences. Training-induced reorganization in white matter (WM) microstructure has been reported, but we know little about its temporal dynamics. To fill this gap, we scanned sighted subjects five times during tactile braille reading training. We observed different dynamics of WM plasticity in the somatosensory and visual cortices implicated in braille reading. The former showed a continuous increase in WM tissue anisotropy along with tactile training, while microstructural changes in the latter were observed only after the participants learned to read braille words. Our results confirm the supply–demand model of brain plasticity and provide evidence that WM reorganization depends on distinct computational demands and functional roles of regions involved in the trained skill.
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Research Articles
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URL: http://www.ncbi.nlm.nih.gov/pubmed/34253624
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8372016/
https://doi.org/10.1523/JNEUROSCI.2242-20.2021
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Brain dynamics of (a)typical reading development—a review of longitudinal studies
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In: NPJ Sci Learn (2021)
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Neuroanatomy of dyslexia: An allometric approach
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In: ISSN: 0953-816X ; EISSN: 1460-9568 ; European Journal of Neuroscience ; https://hal.archives-ouvertes.fr/hal-02976086 ; European Journal of Neuroscience, Wiley, 2020, 52 (6), pp.3595-3609. ⟨10.1111/ejn.14690⟩ (2020)
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Multimodal imaging of brain reorganization in hearing late learners of sign language
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In: Hum Brain Mapp (2020)
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| 9 |
Reading and spelling skills are differentially related to phonological processing: Behavioral and fMRI study
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Children With Dyslexia and Familial Risk for Dyslexia Present Atypical Development of the Neuronal Phonological Network
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Neuroanatomy of developmental dyslexia: Pitfalls and promise
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In: ISSN: 1873-7528 ; Neuroscience & Biobehavioral Reviews ; https://hal.archives-ouvertes.fr/hal-02324914 ; Neuroscience & Biobehavioral Reviews, Oxford: Elsevier Ltd., 2018, 84, pp.434-452. ⟨10.1016/j.neubiorev.2017.08.001⟩ (2018)
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Neither action nor phonological video games make dyslexic children read better
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| 14 |
Neither action nor phonological video games make dyslexic children read better
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| 15 |
Multi-parameter machine learning approach to the neuroanatomical basis of developmental dyslexia
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In: ISSN: 1065-9471 ; EISSN: 1097-0193 ; Human Brain Mapping ; https://hal.archives-ouvertes.fr/hal-01400559 ; Human Brain Mapping, Wiley, 2016 (2016)
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Nencki Affective Word List (NAWL): the cultural adaptation of the Berlin Affective Word List–Reloaded (BAWL-R) for Polish
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Cognitive subtypes of dyslexia are characterized by distinct patterns of grey matter volume
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