A computational theory of visual attention.
A computational theory of visual attention is presented. The basic theory (TVA) combines the biased-choice model for single-stimulus recognition with the fixed-capacity independent race model (FIRM) for selection from multi-element displays. TVA organizes a large body of experimental findings on performance in visual recognition and attention tasks. A recent development (CTVA) combines TVA with a theory of perceptual grouping by proximity. CTVA explains effects of perceptual grouping and spatial distance between items in multi-element displays. A new account of spatial focusing is proposed in this paper. The account provides a framework for understanding visual search as an interplay between serial and parallel processes.
Bundesen
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Centre for Visual Cognition, University of Copenhagen, Denmark. bundesen@axp.psl.ku.dk
D001288:Attention / Q000502:physiology*; D003198:Computer Simulation; D006801:Humans; D008954:Models, Biological; D008962:Models, Theoretical; D014796:Visual Perception / Q000502:physiology*