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Titolo:
Developmental dyslexia: contribution of modern neuropsychology.
Autore:
Demonet, JF; Habib, M;
Indirizzi:
Hop Purpan, INSERM U455, Toulouse, France Hop Purpan Toulouse FranceHop Purpan, INSERM U455, Toulouse, France Hop Nord Marseille, Marseille, France Hop Nord Marseille Marseille France p Nord Marseille, Marseille, France
Titolo Testata:
REVUE NEUROLOGIQUE
fascicolo: 8-9, volume: 157, anno: 2001,
parte:, 1
pagine: 847 - 853
SICI:
0035-3787(200109)157:8-9<847:DDCOMN>2.0.ZU;2-Q
Fonte:
ISI
Lingua:
FRE
Soggetto:
READING-DISABILITY; RIGHT-HEMISPHERE; BRAIN; PERCEPTION; DISRUPTION; DEFICITS; CHILDREN; SPEECH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Demonet, JF CHU Purpan, INSERM V455, F-31059 Toulouse 03, France CHU Purpan Toulouse France 03 5, F-31059 Toulouse 03, France
Citazione:
J.F. Demonet e M. Habib, "Developmental dyslexia: contribution of modern neuropsychology.", REV NEUROL, 157(8-9), 2001, pp. 847-853

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 perceptionand 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.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/04/20 alle ore 02:13:01