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Titolo:
The functional neural architecture of components of attention in language-processing tasks
Autore:
Shaywitz, BA; Shaywitz, SE; Pugh, KR; Fulbright, RK; Skudlarski, P; Mencl, WE; Constable, RT; Marchione, KE; Fletcher, JM; Klorman, R; Lacadie, C; Gore, JC;
Indirizzi:
Yale Univ, Sch Med, Dept Pediat, New Haven, CT 06510 USA Yale Univ New Haven CT USA 06510 ed, Dept Pediat, New Haven, CT 06510 USA Yale Univ, Sch Med, Dept Neurol, New Haven, CT 06510 USA Yale Univ New Haven CT USA 06510 ed, Dept Neurol, New Haven, CT 06510 USA Yale Univ, Sch Med, Dept Diagnost Radiol, New Haven, CT 06510 USA Yale Univ New Haven CT USA 06510 Diagnost Radiol, New Haven, CT 06510 USA Univ Texas, Sch Med, Dept Pediat, Houston, TX 77030 USA Univ Texas Houston TX USA 77030 h Med, Dept Pediat, Houston, TX 77030 USA Univ Rochester, Dept Clin & Social Sci Psychol, Rochester, NY 14642 USA Univ Rochester Rochester NY USA 14642 ci Psychol, Rochester, NY 14642 USA Univ Rochester, Dept Brain & Cognit Sci, Rochester, NY 14642 USA Univ Rochester Rochester NY USA 14642 Cognit Sci, Rochester, NY 14642 USA Yale Univ, Dept Appl Phys, New Haven, CT 06510 USA Yale Univ New Haven CTUSA 06510 Dept Appl Phys, New Haven, CT 06510 USA
Titolo Testata:
NEUROIMAGE
fascicolo: 4, volume: 13, anno: 2001,
pagine: 601 - 612
SICI:
1053-8119(200104)13:4<601:TFNAOC>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON EMISSION TOMOGRAPHY; SELECTIVE ATTENTION; PREFRONTAL CORTEX; BRAIN ACTIVATION; RIGHT-HEMISPHERE; VISUAL-FIELD; DYSLEXIA; MEMORY; NETWORKS; DISSOCIATION;
Keywords:
fMRI; attention; reading; language; executive function;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
50
Recensione:
Indirizzi per estratti:
Indirizzo: Shaywitz, BA Yale Univ, Sch Med, Dept Pediat, 333 Cedar St, New Haven, CT 06510 USA Yale Univ 333 Cedar St New Haven CT USA 06510 n, CT 06510 USA
Citazione:
B.A. Shaywitz et al., "The functional neural architecture of components of attention in language-processing tasks", NEUROIMAGE, 13(4), 2001, pp. 601-612

Abstract

Using functional magnetic resonance imaging we examined three important dimensions of attentional control (selective attention, divided attention, and executive function) in 25 neurologically normal, right-handed men and women, using tasks involving the perception and processing of printed words, spoken words, or both. In the context of language-processing manipulations: selective attention resulted in increased activation at left hemisphere parietal sites as well as at inferior frontal sites, divided attention resulted in additional increases in activation at these same left hemisphere sitesand was also uniquely associated with increased activation of homologous sites in the right hemisphere, and executive function (measured during a complex task requiring sequential decision-making) resulted in increased activation at frontal sites relative to all other conditions. Our findings provide support for the belief that specific functional aspects of attentional control in language processing involve widely distributed but distinctive cortical systems, with mechanisms associated with the control of perceptual selectivity involving primarily parietal and inferior frontal sites and executive function engaging specific sites in frontal cortex. (C) 2001 AcademicPress.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 07/04/20 alle ore 22:37:17