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Titolo:
Brain functional reorganization in early blind humans revealed by auditoryevent-related potentials
Autore:
Leclerc, C; Saint-Amour, D; Lavoie, ME; Lassonde, M; Lepore, F;
Indirizzi:
Univ Montreal, Dept Psychol, Grp Rech Neuropsychol Expt, Montreal, PQ H3C 3J7, Canada Univ Montreal Montreal PQ Canada H3C 3J7 pt, Montreal, PQ H3C 3J7, Canada Inst Univ Geriatrie, Montreal, PQ, Canada Inst Univ Geriatrie Montreal PQCanada v Geriatrie, Montreal, PQ, Canada
Titolo Testata:
NEUROREPORT
fascicolo: 3, volume: 11, anno: 2000,
pagine: 545 - 550
SICI:
0959-4965(20000228)11:3<545:BFRIEB>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
CROSS-MODAL PLASTICITY; LOCALIZATION; ATTENTION; CORTEX; P300;
Keywords:
auditory localization; blind subjects; cross-modal reorganization; event-related potentials; NI component; P3 component; visual cortex;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Lepore, F Univ Montreal, Dept Psychol, Grp Rech Neuropsychol Expt, CP 6128,Succursale Ctr Ville, Montreal, PQ H3C 3J7, Canada Univ Montreal CP 6128,Succursale Ctr Ville Montreal PQ Canada H3C 3J7
Citazione:
C. Leclerc et al., "Brain functional reorganization in early blind humans revealed by auditoryevent-related potentials", NEUROREPORT, 11(3), 2000, pp. 545-550

Abstract

Visually challenged individuals often compensate for their handicap by developing supra-normal abilities in their remaining sensory systems. Here, weexamined the scalp distribution of components NI and P3 of auditory evokedpotentials during a sound localization task in four totally blind subjectswho had previously shown better performance than sighted subjects. Both NIand P3 waves peaked at their usual positions while blind acid sighted individuals performed the task. However, in blind subjects these two componentswere also found to be robust over occipital regions while in sighted individuals this pattern was not seen. We conclude that deafferented posterior visual areas in blind individuals are recruited to carry:out auditory functions, enabling these individuals to compensate for their lack of vision. NeuroReport 11:545-550 (C) 2000 Lippincott Williams & Wilkins.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 20:21:40