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Autori: Domijan, Dražen
Naslov: A Neurodynamical Model of Visuo-spatial Selection
Izvornik: PerceptionPion , 2013. 150.
ISSN: 0301-0066
Skup: 36th European Conference on Visual Perception
Mjesto i datum: Bremen, Njemačka, 25.-29.08. 2013.
Ključne riječi: Attention; Selection; Neural network model
Sažetak:
Huang and Pashler [2007, Psychological Review, 114(3), 599-631] showed that observers are able to simultaneously select all spatial locations occupied by a single feature value (e.g., red) per dimension (color). They suggested that visual system creates a Boolean map, that is, a spatial representation which partitions visual scene into two distinct and complementary regions (selected and not selected). The aim of the present work is to develop a recurrent neural network with the ability to select multiple visual objects simultaneously based on a shared feature value. The basic computational elements of the network are two types of inhibitory interneurons which mediates lateral and dendritic inhibition. Lateral inhibition implements competition between locations, while dendritic inhibition enables spatial grouping and feature-based selection. Interactions between lateral and dendritic inhibition result in a formation of a spatial map where maximal firing rate is assigned to selected feature value while neural activity at other locations is suppressed. Computer simulations showed that the proposed neural network is able to create a Boolean map and to elaborate it using logical operations of intersection and union. The proposed network provides a neural implementation of the Boolean theory of visual attention.
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
MEDLINE
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Social Science Citation Index (SSCI) (sastavni dio Web of Science Core Collectiona)
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Sažetak
Vrsta recenzije: Međunarodna recenzija
Projekt / tema: 009-0362214-0818
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
Psihologija
URL Internet adrese: http://www.perceptionweb.com/abstract.cgi?id=v130462
Upisao u CROSBI: Dražen Domijan (ddomijan@ffri.hr), 3. Pro. 2014. u 16:09 sati



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