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Titolo:
A role for left temporal pole in the retrieval of words for unique entities
Autore:
Grabowski, TJ; Damasio, H; Tranel, D; Ponto, LLB; Hichwa, RD; Damasio, AR;
Indirizzi:
Univ Iowa, Coll Med, Dept Neurol, Iowa City, IA 52242 USA Univ Iowa Iowa City IA USA 52242 ed, Dept Neurol, Iowa City, IA 52242 USA Univ Iowa, Coll Med, Dept Radiol, Iowa City, IA 52242 USA Univ Iowa Iowa City IA USA 52242 ed, Dept Radiol, Iowa City, IA 52242 USA
Titolo Testata:
HUMAN BRAIN MAPPING
fascicolo: 4, volume: 13, anno: 2001,
pagine: 199 - 212
SICI:
1065-9471(200108)13:4<199:ARFLTP>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON EMISSION TOMOGRAPHY; PROPER-NAMES; PEOPLES NAMES; SELECTIVE IMPAIRMENT; SEMANTIC DEMENTIA; LEXICAL RETRIEVAL; PET ACTIVATION; RHESUS-MONKEY; NEURAL BASIS; FACE;
Keywords:
left temporal pole; language; word retrieval; functional imaging; face processing; naming;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
82
Recensione:
Indirizzi per estratti:
Indirizzo: Grabowski, TJ Univ Iowa, Coll Med, Dept Neurol, 2 RCP UIHC,200 Hawkins Dr,Iowa City, IA52242 USA Univ Iowa 2 RCP UIHC,200 Hawkins Dr Iowa City IA USA 52242 A
Citazione:
T.J. Grabowski et al., "A role for left temporal pole in the retrieval of words for unique entities", HUM BRAIN M, 13(4), 2001, pp. 199-212

Abstract

Both lesion and functional imaging studies have implicated sectors of high-order association cortices of the left temporal lobe in the retrieval of words for objects belonging to varied conceptual categories. In particular, the cortices located in the left temporal pole have been associated with naming unique persons from faces. Because this neuroanatomical-behavioral association might be related to either the specificity of the task (retrievinga name at unique level) or to the possible preferential processing of faces by anterior temporal cortices, we performed a PET imaging experiment to test the hypothesis that the effect is related to the specificity of the word retrieval task. Normal subjects were asked to name at unique level entities from two conceptual categories: famous landmarks and famous faces. In support of the hypothesis, naming entities in both categories was associated with increases in activity in the left temporal pole. No main effect of category (faces vs. landmarks /buildings) or interaction of task and category was found in the left temporal pole. Retrieving names for unique persons and for names for unique landmarks activate the same brain region. These findings are consistent with the notion that activity in the left temporal poleis Linked to the level of specificity of word retrieval rather than the conceptual class to which the stimulus belongs. (C) 2001 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 16:06:49