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Titolo:
The time course of visual processing: From early perception to decision-making
Autore:
VanRullen, R; Thorpe, SJ;
Indirizzi:
Ctr Rech Cerveau & Cognit, UMR 5549, F-31062 Toulouse, France Ctr Rech Cerveau & Cognit Toulouse France F-31062 31062 Toulouse, France
Titolo Testata:
JOURNAL OF COGNITIVE NEUROSCIENCE
fascicolo: 4, volume: 13, anno: 2001,
pagine: 454 - 461
SICI:
0898-929X(200105)13:4<454:TTCOVP>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
FACE RECOGNITION; TEMPORAL CORTEX; OBJECT VISION; AWARENESS; REPRESENTATION; CATEGORIZATION; STIMULI; POTENTIALS; NEURONS; MONKEYS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
41
Recensione:
Indirizzi per estratti:
Indirizzo: VanRullen, R Ctr Rech Cerveau & Cognit, UMR 5549, 133 Rte Narbonne, F-31062 Toulouse, France Ctr Rech Cerveau & Cognit 133 Rte Narbonne Toulouse France F-31062
Citazione:
R. VanRullen e S.J. Thorpe, "The time course of visual processing: From early perception to decision-making", J COGN NEUR, 13(4), 2001, pp. 454-461

Abstract

Experiments investigating the mechanisms involved in visual processing often fail to separate low-level encoding mechanisms from higher-level behaviorally relevant ones. Using an alternating dual-task event-related potential(ERP) experimental paradigm (animals or vehicles categorization) where targets of one task are intermixed among distractors of the other, we show that visual categorization of a natural scene involves different mechanisms with different time courses: a perceptual, task-independent mechanism, followed by a task-related, category-independent process. Although average ERP responses reflect the visual category of the stimulus shortly after visual processing has begun (e.g. 75-80 msec), this difference is not correlated with the subject's behavior until 150 msec poststimulus.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 14:37:28