Dyslexies développementales: apports de la neuropsychologie contemporaine [Developmental dyslexia: contribution of modern neuropsychology].

Détails

ID Serval
serval:BIB_D0565BF8EB41
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Synthèse (review): revue aussi complète que possible des connaissances sur un sujet, rédigée à partir de l'analyse exhaustive des travaux publiés.
Collection
Publications
Titre
Dyslexies développementales: apports de la neuropsychologie contemporaine [Developmental dyslexia: contribution of modern neuropsychology].
Périodique
Revue Neurologique
Auteur(s)
Démonet J.F., Habib M.
ISSN
0035-3787 (Print)
ISSN-L
0035-3787
Statut éditorial
Publié
Date de publication
2001
Peer-reviewed
Oui
Volume
157
Numéro
8-9 Pt 1
Pages
847-853
Langue
français
Notes
Publication types: English Abstract ; Journal Article ; ReviewPublication Status: ppublish
Résumé
In France about 1 million children are thought to present learning disabilities for reading that in most cases correspond to developmental dyslexias. These are specific and constitutional deficits that prevent rapid and automatic reading abilities from developing, in spite of a normal intelligence and normal visual and auditory acuity. The most frequent form of dyslexia is called "phonological dyslexia" as it results from a deficit of perception and manipulation of phonemes (i.e. "phonological awareness"). Functional neuro-imaging has great potential for helping understand such functional deficits that are likely to be caused by microscopic abnormalities such as micro-polygyria localised in the perisylvian cortex. Tomographic methods have shown deficits of activation of these cortical areas. Electrophysiological methods revealed abnormalities of various events such as MMN or N400, and more recently, delayed latencies of earlier markers suggesting deficits of encoding short-lived features of speech signal.
Mots-clé
Awareness/physiology, Brain Mapping, Cerebral Cortex/abnormalities, Cerebral Cortex/physiopathology, Dyslexia/diagnosis, Dyslexia/physiopathology, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Neuropsychological Tests, Phonetics, Speech Perception/physiology
Pubmed
Web of science
Création de la notice
24/03/2013 18:28
Dernière modification de la notice
03/03/2018 21:35
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