Dyslexia: cultural diversity and biological unity.

Détails

ID Serval
serval:BIB_A98CA3E7D761
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Dyslexia: cultural diversity and biological unity.
Périodique
Science
Auteur(s)
Paulesu E., Démonet J.F., Fazio F., McCrory E., Chanoine V., Brunswick N., Cappa S.F., Cossu G., Habib M., Frith C.D., Frith U.
ISSN
0036-8075 (Print)
ISSN-L
0036-8075
Statut éditorial
Publié
Date de publication
2001
Peer-reviewed
Oui
Volume
291
Numéro
5511
Pages
2165-2167
Langue
anglais
Notes
Publication types: Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov'tPublication Status: ppublish. PDF type: Report
Résumé
The recognition of dyslexia as a neurodevelopmental disorder has been hampered by the belief that it is not a specific diagnostic entity because it has variable and culture-specific manifestations. In line with this belief, we found that Italian dyslexics, using a shallow orthography which facilitates reading, performed better on reading tasks than did English and French dyslexics. However, all dyslexics were equally impaired relative to their controls on reading and phonological tasks. Positron emission tomography scans during explicit and implicit reading showed the same reduced activity in a region of the left hemisphere in dyslexics from all three countries, with the maximum peak in the middle temporal gyrus and additional peaks in the inferior and superior temporal gyri and middle occipital gyrus. We conclude that there is a universal neurocognitive basis for dyslexia and that differences in reading performance among dyslexics of different countries are due to different orthographies.
Mots-clé
Adult, Brain/blood supply, Brain/physiopathology, Cross-Cultural Comparison, Culture, Dyslexia/etiology, Dyslexia/physiopathology, France, Great Britain, Humans, Italy, Language, Male, Matched-Pair Analysis, Occipital Lobe/blood supply, Occipital Lobe/physiopathology, Reading, Regional Blood Flow, Temporal Lobe/blood supply, Temporal Lobe/physiopathology, Tomography, Emission-Computed
Pubmed
Web of science
Création de la notice
24/03/2013 18:25
Dernière modification de la notice
03/03/2018 20:22
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