Influence of attentional capture on oculomotor control

Previous research has shown that when searching for a color singleton, top- down control cannot prevent attentional capture by an abrupt visual onset. The present research addressed whether a task-irrelevant abrupt onset would affect eye movement behavior when searching for a color singleton. Results show that in many instances the eye moved in the direction of the task-irr elevant abrupt onset. There was evidence that top-down control could neithe r entirely prevent attentional capture by visual onsets nor prevent the eye from starting to move in the direction of the onset. Results suggest paral lel programming of 2 saccades: 1 voluntary goal-directed eye movement towar d the color singleton target and 1 stimulus-driven eye movement reflexively elicited by the abrupt onset. A neurophysiologically plausible model that can account for the current findings is discussed.