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

Details

Serval ID
serval:BIB_D0565BF8EB41
Type
Article: article from journal or magazin.
Publication sub-type
Review (review): journal as complete as possible of one specific subject, written based on exhaustive analyses from published work.
Collection
Publications
Title
Dyslexies développementales: apports de la neuropsychologie contemporaine [Developmental dyslexia: contribution of modern neuropsychology].
Journal
Revue Neurologique
Author(s)
Démonet J.F., Habib M.
ISSN
0035-3787 (Print)
ISSN-L
0035-3787
Publication state
Published
Issued date
2001
Peer-reviewed
Oui
Volume
157
Number
8-9 Pt 1
Pages
847-853
Language
french
Notes
Publication types: English Abstract ; Journal Article ; ReviewPublication Status: ppublish
Abstract
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.
Keywords
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
Create date
24/03/2013 17:28
Last modification date
20/08/2019 15:50
Usage data