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Titolo:
Activation reduction in anterior temporal cortices during repeated recognition of faces of personal acquaintances
Autore:
Sugiura, M; Kawashima, R; Nakamura, K; Sato, N; Nakamura, A; Kato, T; Hatano, K; Schormann, T; Zilles, K; Sato, K; Ito, K; Fukuda, H;
Indirizzi:
Tohoku Univ, IDAC, Dept Radiol & Nucl Med, Sendai, Miyagi 9808575, Japan Tohoku Univ Sendai Miyagi Japan 9808575 ed, Sendai, Miyagi 9808575, Japan TAO, Aoba Brain Imaging Res Ctr, Sendai, Miyagi 9808575, Japan TAO SendaiMiyagi Japan 9808575 ng Res Ctr, Sendai, Miyagi 9808575, Japan Kyoto Univ, Primate Res Inst, Inuyama, Aichi 4848506, Japan Kyoto Univ Inuyama Aichi Japan 4848506 nst, Inuyama, Aichi 4848506, Japan Natl Inst Longev Sci, Dept Biofunct Res, Obu 4748522, Japan Natl Inst Longev Sci Obu Japan 4748522 Biofunct Res, Obu 4748522, Japan Univ Dusseldorf, Inst Neuroanat, D-40001 Dusseldorf, Germany Univ Dusseldorf Dusseldorf Germany D-40001 , D-40001 Dusseldorf, Germany Res Ctr Juelich, Inst Med, D-52425 Julich, Germany Res Ctr Juelich Julich Germany D-52425 Inst Med, D-52425 Julich, Germany
Titolo Testata:
NEUROIMAGE
fascicolo: 5, volume: 13, anno: 2001,
pagine: 877 - 890
SICI:
1053-8119(200105)13:5<877:ARIATC>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN EXTRASTRIATE CORTEX; POSITRON EMISSION TOMOGRAPHY; HUMAN HIPPOCAMPAL-FORMATION; INFERIOR PREFRONTAL CORTEX; HUMAN AMYGDALA; FACIAL EXPRESSIONS; OBJECT RECOGNITION; FUNCTIONAL MRI; CONSCIOUS RECOLLECTION; RETROGRADE-AMNESIA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
82
Recensione:
Indirizzi per estratti:
Indirizzo: Sugiura, M Tohoku Univ, IDAC, Dept Radiol & Nucl Med, Sendai, Miyagi 9808575, Japan Tohoku Univ Sendai Miyagi Japan 9808575 Miyagi 9808575, Japan
Citazione:
M. Sugiura et al., "Activation reduction in anterior temporal cortices during repeated recognition of faces of personal acquaintances", NEUROIMAGE, 13(5), 2001, pp. 877-890

Abstract

Repeated recognition of the face of a familiar individual is known to showsemantic repetition priming effect. In this study, normal subjects were repeatedly presented faces of their colleagues, and the effect of repetition on the regional cerebral blood flow change was measured using positron emission tomography. They repeated a set of three tasks: the familiar-face detection (F) task, the facial direction discrimination (D) task, and the perceptual control (C) task. During five repetitions of the F task, familiar faces were presented six times from different views in a pseudorandom order. Activation reduction through the repetition of the F tasks was observed in the bilateral anterior (anterolateral to the polar region) temporal corticeswhich are suggested to be involved in the access to the long-term memory concerning people. The bilateral amygdala, the hypothalamus, and the medial frontal cortices, were constantly activated during the F tasks, and considered to be associated with the behavioral. significance of the presented familiar faces. Constant activation was also observed in the bilateral occipitotemporal regions and fusiform gyri and the right medial temporal regions during perception of the faces, and in the left medial temporal regions during the facial familiarity detection task, which are consistent with the results of previous functional brain imaging studies. The results have provided further information about the functional segregation of the anterior temporal regions in face recognition and long-term memory. (C) 2001 Academic Press.

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Documento generato il 06/04/20 alle ore 01:52:14