Psychology Commons^™

Investigating Interactions Between Search Mechanisms In The Control Of Visual Attention, Brian J. White

Theses and Dissertations (Comprehensive)

Olds, Cowan and Jolicoeur (2000) showed that although the mechanisms underlying visual search have traditionally been assumed to be independent. in fact they interact. Using coloured disk stimuli, they interrupted pop-out search (target plus Dl distractors) by adding more distractors (D2s) of a different colour to the display before pop-out processes were able to find the target. In short, partially completed pop-out processes facilitated subsequent difficult search processes (“search assistance"). The present study investigated hypotheses for this interaction. In Experiments 1 and 2, we used methods aimed at determining where the bulk of attentional resources are allocated during search of …