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Titolo:
FUNCTIONAL MAGNETIC-RESONANCE-IMAGING OF CATEGORY-SPECIFIC CORTICAL ACTIVATION, EVIDENCE FOR SEMANTIC MAPS
Autore:
SPITZER M; KISCHKA U; GUCKEL F; BELLEMANN ME; KAMMER T; SEYYEDI S; WEISBROD M; SCHWARTZ A; BRIX G;
Indirizzi:
UNIV ULM,PSYCHIAT KLIN,LEIMGRUBENWEG 12 D-89075 ULM GERMANY REHAKLIN RHEINFELDEN RHEINFELDEN SWITZERLAND UNIV HEIDELBERG,KLIN FAK 2,KLINIKUM MANNHEIM,INST KLIN RADIOL HEIDELBERG GERMANY DEUTSCH KREBSFORSCHUNGSZENTRUM,FORSCH SCHWERPUNKT RADIOL DIAGNOST & THERAPIE D-6900 HEIDELBERG GERMANY MAX PLANCK INST BIOL CYBERNET D-72076 TUBINGEN GERMANY UNIV HEIDELBERG,KLIN FAC 2,KLINIKUM MANNHEIM,NEUROL KLIN HEIDELBERG GERMANY
Titolo Testata:
Cognitive brain research
fascicolo: 4, volume: 6, anno: 1998,
pagine: 309 - 319
SICI:
0926-6410(1998)6:4<309:FMOCCA>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
BODY PARTS; OBJECT RECOGNITION; WORD GENERATION; FRONTAL-CORTEX; NEURAL BASIS; HUMAN BRAIN; LANGUAGE; IMPAIRMENT; PLASTICITY; RETRIEVAL;
Keywords:
FUNCTIONAL MAGNETIC RESONANCE IMAGING (FMRI); CORTICAL ACTIVATION; PSYCHOLINGUISTICS; SEMANTIC MAP;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
66
Recensione:
Indirizzi per estratti:
Citazione:
M. Spitzer et al., "FUNCTIONAL MAGNETIC-RESONANCE-IMAGING OF CATEGORY-SPECIFIC CORTICAL ACTIVATION, EVIDENCE FOR SEMANTIC MAPS", Cognitive brain research, 6(4), 1998, pp. 309-319

Abstract

Functional magnetic resonance imaging (fMRI) was used to examine the pattern of cortical activity during a picture naming task. Subjects (n= 12) had to covertly name either animals or furniture items. Functional scanning was performed using a conventional 1.5-Tesla whole-body MRI system. Images obtained during naming the two categories were compared using a non-parametric test. The study revealed evidence for domain-specific lexical regions in left middle, right middle and inferior frontal areas, as well as in superior and middle temporal areas. The results corroborate neuropsychological data and demonstrate directly andnon-invasively in human volunteers that semantic representations in frontal and temporal areas are, to some degree, localized and possibly implemented as multiple maps. A completely distributed storage of semantic information is rendered unlikely. (C) 1998 Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 07:26:15