Naslov
How is Saliency Map Read-Out?

Autori
Šetić, Mia ; Domijan, Dražen

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Skup
Trieste Symposium on Perception and Cognition

Mjesto i datum
Trst, Italija, 26.10.2006. - 27.10.2006

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Attention; Computational model; Neural integrators; Saliency; Target selection; Visual search

Sažetak
When searching for a target in a visual scene filled with distractors, the mechanism of inhibition of return prevents revisiting previously attended locations. We proposed a new computational model for the inhibition of return, which is able to examine priority or saliency map in a manner consistent with psychophysical findings. The basic elements of the model are two neural integrators connected with two inhibitory interneurons. The integrators keep the saliency value of the currently attended location in the working memory. The inhibitory inter-neurons modulate a feedforward flow of information between the saliency map and the output map which points to the location of interest. Computer simulations showed that the model is able to read-out the saliency map when the objects are moving or when eye movements are present. Also, it is able to simultaneously select more then one location, even when they are non-contiguous. The model can be considered as a neural implementation of the episodic theory of attention.

Izvorni jezik
Engleski

Znanstvena područja
Psihologija

POVEZANOST RADA