Naslov
Neural mechanism for noise exclusion in spatial cueing

Autori
Domijan, Dražen

Izvornik
Perceptual & Motor Skills (0031-5125) 97 (2003), 3; 833-842

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Attention; Neural model; Spatial cueing
(Attention; Neural model; Spatial Cueing)

Sažetak
Spatial cueing in an orientation discrimination task with targets embedded in high or low external noise indicates noise exclusion as a primary mechanism for attentional modulation. In order to implement noise exclusion in a neural network, a new mechanism is proposed based on a dendritic computation of difference between self inhibition and lateral inhibition signals. A computer simulation illustrates that the model exhibits a strong cueing effect for high noise input and no effect when the noiseless input is presented, which is consistent with behavioral signatures of noise exclusion. It is argued that the model could also exhibit object-based selection if uniform activity distribution is assumed for all cells representing the object.

Izvorni jezik
Engleski

Znanstvena područja
Kliničke medicinske znanosti

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