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Maladaptive compensation of right fusiform gyrus in developmental dyslexia: A hub-based white matter network analysis
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In: ISSN: 0010-9452 ; Cortex ; https://hal.archives-ouvertes.fr/hal-03485452 ; Cortex, Elsevier, 2021, 145, pp.57-66. ⟨10.1016/j.cortex.2021.07.016⟩ (2021)
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Abstract:
International audience ; Cognitive theories have been proposed to clarify the causes and symptoms of dyslexia. However, correlations between local network parameters of white matter connectivity and literacy skills remain poorly known. An unbiased hypothesis-free approach was adopted to examine the correlations between literacy symptoms (reading and spelling) and hub-based white matter networks' connectivity parameters [nodal degree fractional anisotropy (FA) values] of 90 brain regions based on Anatomical Atlas Labels (AAL) in a group of French children with dyslexia aged 9–14 years. Results revealed that the higher the right fusiform gyrus's (FFG) nodal degree FA values, the lower the reading accuracy for words and pseudowords in dyslexic children. The results indicate that the severity of word/pseudoword reading symptoms in dyslexia relates to a white matter network centered around the right FFG. The negative correlation between right FFG network connectivity and reading accuracy, in particular pseudoword reading accuracy, suggests that right FFG represents a maladaptive compensation towards a general orthography-to-phonology decoding ability in developmental dyslexia.
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Keyword:
[SDV.NEU.SC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences; Developmental dyslexia; Fusiform gyrus; Literacy skills; White matter network
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URL: https://hal.archives-ouvertes.fr/hal-03485452
https://doi.org/10.1016/j.cortex.2021.07.016
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Impact of literacy on the functional connectivity of vision and language related networks
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In: ISSN: 1053-8119 ; EISSN: 1095-9572 ; NeuroImage ; https://hal.sorbonne-universite.fr/hal-02551991 ; NeuroImage, Elsevier, 2020, 213, pp.116722. ⟨10.1016/j.neuroimage.2020.116722⟩ (2020)
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Reading music and words: The anatomical connectivity of musicians’ visual cortex
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In: ISSN: 1053-8119 ; EISSN: 1095-9572 ; NeuroImage ; https://hal.sorbonne-universite.fr/hal-02553728 ; NeuroImage, Elsevier, 2020, 212, pp.116666. ⟨10.1016/j.neuroimage.2020.116666⟩ (2020)
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Influences of the early family environment and long-term vocabulary development on the structure of white matter pathways: A longitudinal investigation
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In: ISSN: 1878-9293 ; EISSN: 1878-9307 ; Developmental Cognitive Neuroscience ; https://hal.archives-ouvertes.fr/hal-02971250 ; Developmental Cognitive Neuroscience, Elsevier, 2020, 42, pp.100767. ⟨10.1016/j.dcn.2020.100767⟩ (2020)
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| 5 |
Alterations in white matter pathways underlying phonological and morphological processing in Chinese developmental dyslexia
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In: ISSN: 1878-9293 ; EISSN: 1878-9307 ; Developmental Cognitive Neuroscience ; https://hal.archives-ouvertes.fr/hal-02158470 ; Developmental Cognitive Neuroscience, Elsevier, 2018, 31, pp.11-19. ⟨10.1016/j.dcn.2018.04.002⟩ (2018)
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Vocabulary growth rate from preschool to school-age years is reflected in the connectivity of the arcuate fasciculus in 14-year-old children
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In: ISSN: 1363-755X ; EISSN: 1467-7687 ; Developmental Science ; https://hal.archives-ouvertes.fr/hal-02158479 ; Developmental Science, Wiley, 2018, 21 (5), pp.e12647. ⟨10.1111/desc.12647⟩ (2018)
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| 7 |
Alterations in white matter pathways underlying phonological and morphological processing in Chinese developmental dyslexia
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Morphometry of Left Frontal and Temporal Poles Predicts Analogical Reasoning Abilities
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In: ISSN: 1047-3211 ; EISSN: 1460-2199 ; Cerebral Cortex ; https://hal.sorbonne-universite.fr/hal-01299114 ; Cerebral Cortex, Oxford University Press (OUP), 2016, 26 (3), pp.915-932. ⟨10.1093/cercor/bhu254⟩ (2016)
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Reasoning by analogy requires the left frontal pole: lesion-deficit mapping and clinical implications
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In: ISSN: 0006-8950 ; EISSN: 1460-2156 ; Brain - A Journal of Neurology ; https://hal.sorbonne-universite.fr/hal-01307684 ; Brain - A Journal of Neurology , Oxford University Press (OUP), 2016, ⟨10.1093/brain/aww072⟩ (2016)
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A novel frontal pathway underlies verbal fluency in primary progressive aphasia
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A novel frontal pathway underlies verbal fluency in primary progressive aphasia
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