Title :
Visual selection: facilitation due to stimulus saliency
Author :
von Grunau, M. ; Iordanova, Marta
Author_Institution :
Dept. of Psychol., Concordia Univ., Montreal, Que., Canada
Abstract :
In this paper, we examine some effects of the selection of spatial location on the processing of subsequent stimuli. Both bottom-up selection due to priming and top-down selection due to attention are discussed. In experiments with the motion induction illusion, we demonstrate a speed-up of processing due to selection, a center/surround organization of facilitation and inhibition, and the equivalence of priming and attention. More generally, it is suggested that selection effects can be understood as activation of locations in striate or extra-striate cortex and that they are governed by stimulus salience
Keywords :
neurophysiology; visual evoked potentials; visual perception; attention; bottom-up selection; cortex; inhibition; motion induction illusion; spatial location; stimulus saliency; top-down selection; visual selection; Bismuth; Delay effects; Eyes; Humans; Organisms; Psychology; Retina; Sampling methods; Visual system;
Conference_Titel :
Cybernetic Vision, 1996. Proceedings., Second Workshop on
Conference_Location :
Sao Carlos
Print_ISBN :
0-8186-8058-X
DOI :
10.1109/CYBVIS.1996.629433