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Titolo:
Distinct cortical areas for names of numbers and body parts independent oflanguage and input modality
Autore:
Le ClecH, G; Dehaene, S; Cohen, L; Mehler, J; Dupoux, E; Poline, JB; Lehericy, S; van de Moortele, PF; Le Bihan, D;
Indirizzi:
CEA, Serv Hosp Frederic Joliot, DSV, INSERM,U334, F-91401 Orsay, France CEA Orsay France F-91401 Joliot, DSV, INSERM,U334, F-91401 Orsay, France
Titolo Testata:
NEUROIMAGE
fascicolo: 4, volume: 12, anno: 2000,
pagine: 381 - 391
SICI:
1053-8119(200010)12:4<381:DCAFNO>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
SEMANTIC CATEGORY; WORD COMPREHENSION; FUNCTIONAL-ANATOMY; MOTOR AREAS; HUMAN BRAIN; KNOWLEDGE; PET; ORGANIZATION; SYSTEMS; REPRESENTATIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
63
Recensione:
Indirizzi per estratti:
Indirizzo: Le Clec'H, G CEA, Serv Hosp Frederic Joliot, DSV, INSERM,U334, 4 Pl Gen Leclerc, F-91401 Orsay, France CEA 4 Pl Gen Leclerc Orsay France F-91401 1401 Orsay, France
Citazione:
G. Le Clec'H et al., "Distinct cortical areas for names of numbers and body parts independent oflanguage and input modality", NEUROIMAGE, 12(4), 2000, pp. 381-391

Abstract

Some models of word comprehension postulate that the processing of words presented in different modalities and languages ultimately converge's towardcommon cerebral systems associated with semantic-level processing and thatthe localization of these systems may vary with the category of semantic knowledge being accessed. We used functional magnetic resonance imaging to investigate this hypothesis with two categories of words, numerals, and bodyparts, for which the existence of distinct category-specific areas is debated in neuropsychology. Across two experiments, one with a blocked design and the other with an event-related design, a reproducible set of left-hemispheric parietal and prefrontal areas showed greater activation during the manipulation of topographical knowledge about body parts and a right-hemispheric parietal network during the manipulation of numerical quantities. These results complement the existing neuropsychological and brain-imaging literature by suggesting that within the extensive network of bilateral parietal regions active during both number and body-part processing, a subset shows category-specific responses independent of the language and modality of presentation. (C) 2000 Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/12/20 alle ore 18:36:41