Abstract
Shifts of visual attention produce mislocalization of visual objects. In attention repulsion effect, a brief cue that attracts attention shifts the perceived location of a following visual object away from the focus of attention. If visual cue is presented after the target, the perceived location of the targets shifted toward the location of the following cue (attention attraction). Recent research has shown that repulsion effect changes with target-cue distances (Kosovicheva et al., 2010). The present study examined one unanswered question of whether depth perception would influence the magnitudes of attentional repulsion and attraction effect. In Experiment 1, we presented cues at different depths with respect to the target to be located. The results showed that the magnitudes of both repulsion and attraction were larger when the cue was presented at the depth farther away from the target. In order examine the effect of binocular disparity, in Experiment 2, we removed binocular disparity from the stimuli used in Experiment 1 while keeping the pictorial information of depth (i.e., the retinal size of the cues and the shift in retinal position due to perspective). The attentional attraction effect was modulated in the similar ways as in Experiment 1. However, the magnitudes of the attentional repulsion effect were at the same level in all experimental conditions. These results suggest that depth perception induced by binocular disparity could modulate the magnitudes of the attentional repulsion and attraction effects differently.
Meeting abstract presented at VSS 2013