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Titolo:
Event-related fMRI analysis of the cerebral circuit for number comparison
Autore:
Pinel, P; Le ClecH, G; van de Moortele, PF; Naccache, L; Le Bihan, D; Dehaene, S;
Indirizzi:
CEA, DSV, INSERM, U334, F-91401 Orsay, France CEA Orsay France F-91401CEA, DSV, INSERM, U334, F-91401 Orsay, France CEA, DSV, Serv Hosp Frederic Joliot, F-91401 Orsay, France CEA Orsay France F-91401 erv Hosp Frederic Joliot, F-91401 Orsay, France
Titolo Testata:
NEUROREPORT
fascicolo: 7, volume: 10, anno: 1999,
pagine: 1473 - 1479
SICI:
0959-4965(19990514)10:7<1473:EFAOTC>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANTERIOR CINGULATE CORTEX; CORTICAL ACTIVATION; ERROR-DETECTION; LOCALIZATION; NETWORKS; TRIALS; PET;
Keywords:
arithmetic; distance effect; fusiform gyrus; parietal cortex;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Dehaene, S CEA, DSV, INSERM, U334, 4 Pl Gen Leclerc, F-91401 Orsay, FranceCEA 4 Pl Gen Leclerc Orsay France F-91401 -91401 Orsay, France
Citazione:
P. Pinel et al., "Event-related fMRI analysis of the cerebral circuit for number comparison", NEUROREPORT, 10(7), 1999, pp. 1473-1479

Abstract

CEREBRAL activity during number comparison was studied with functional magnetic resonance imaging using an event-related design. We identified an extended network of task-related areas that showed a phasic activation following each trial, including anterior cingulate, bilateral sensorimotor areas, inferior occipitotemporal cortices, posterior parietal cortices, inferior and dorsolateral prefrontal cortices, and thalami. We then tested which of these areas were affected by number notation, numerical distance and response side, three variables that specifically target processes of visual identification, quantity manipulation and motor response in a serial-stage model of the number comparison task. Our results confirm the role of the right fusiform gyrus in digit identification processes, and of the inferior parietal lobule in the internal manipulation of numerical quantities. NeuroReport 10:1473-1479 (C) 1999 Lippincott Williams & Wilkins.

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Documento generato il 08/07/20 alle ore 07:22:39