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Titolo:
The neural representation of nouns and verbs: PET studies
Autore:
Tyler, LK; Russell, R; Fadili, J; Moss, HE;
Indirizzi:
Univ Cambridge, Dept Expt Psychol, Ctr Speech & Language, Cambridge CB2 3EB, England Univ Cambridge Cambridge England CB2 3EB age, Cambridge CB2 3EB, England
Titolo Testata:
BRAIN
, volume: 124, anno: 2001,
parte:, 8
pagine: 1619 - 1634
SICI:
0006-8950(200108)124:<1619:TNRONA>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
INFERIOR PREFRONTAL CORTEX; POSITRON EMISSION TOMOGRAPHY; FUNCTIONAL MRI; WORD COMPREHENSION; BRAIN ACTIVATION; SEMANTIC SYSTEM; ABSTRACT WORDS; RETRIEVAL; KNOWLEDGE; ORGANIZATION;
Keywords:
PET; nouns and verbs;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
64
Recensione:
Indirizzi per estratti:
Indirizzo: Tyler, LK Univ Cambridge, Dept Expt Psychol, Ctr Speech & Language, Downing St, Cambridge CB2 3EB, England Univ Cambridge Downing St Cambridge England CB2 3EB EB, England
Citazione:
L.K. Tyler et al., "The neural representation of nouns and verbs: PET studies", BRAIN, 124, 2001, pp. 1619-1634

Abstract

Neuropsychological studies of patients with selective deficits for nouns or verbs have been taken as evidence for the neural specialization of different word classes. Noun deficits are associated with lesions in anterior temporal regions while verb deficits arise from left inferior frontal lesions. However, neuroimaging studies do not unequivocally support this account, with only some studies supporting claims for regional specialization. We carried out two PET studies to determine whether there is any regional specialization for the processing of nouns and verbs. One study used the lexical decision task and the other used a more semantically demanding task, i.e. semantic categorization. We found robust activation of a semantic network extending from left inferior frontal cortex into the inferior temporal lobe, but no differences as a function of word class. We interpret these data within the framework of cognitive accounts in which conceptual knowledge is represented within a non-differentiated distributed system.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 19:50:23