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Titolo:
A neurodynamical model for selective visual attention using oscillators
Autore:
Corchs, S; Deco, G;
Indirizzi:
Siemens AG, Corp Technol, D-81739 Munich, Germany Siemens AG Munich Germany D-81739 Corp Technol, D-81739 Munich, Germany
Titolo Testata:
NEURAL NETWORKS
fascicolo: 8, volume: 14, anno: 2001,
pagine: 981 - 990
SICI:
0893-6080(200110)14:8<981:ANMFSV>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
BRIGHTNESS PERCEPTION; 3-DIMENSIONAL FORM; CORTICAL DYNAMICS; PHASE OSCILLATORS; FEATURE LINKING; GUIDED SEARCH; CORTEX; SYNCHRONIZATION; COLOR; MECHANISM;
Keywords:
visual search; selective attention; neural models; phase oscillators; synchronization;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Deco, G Siemens AG, Corp Technol, ZT IK 4,Otto Hahn Ring 6, D-81739 Munich, Germany Siemens AG ZT IK 4,Otto Hahn Ring 6 Munich Germany D-81739 ermany
Citazione:
S. Corchs e G. Deco, "A neurodynamical model for selective visual attention using oscillators", NEURAL NETW, 14(8), 2001, pp. 981-990

Abstract

We present a neurodynamical model to study and simulate visual search tasks experiments. The model consists of different pools of interconnected phase oscillators. Each oscillator is described by an integrate-and-fire type equation. Visual attention appears as an emergent property of the dynamic ofthe system, resulting from the temporal synchronization of the pools whichbind the features of the searched target. The time courses observed in thepsychophysical visual search experiments can be explained within a purely parallel dynamic and without assuming priority maps and serial spotlight mechanisms, as is usually done in the standard theories. The model fits also the measured activity reported for the neural responses in inferotemporal visual cortex of monkeys performing visual search tasks. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 21:00:12