Authors
Erik Van der Burg, John Cass, Jan Theeuwes
Publication date
2019/12/1
Journal
Vision research
Volume
165
Pages
54-63
Publisher
Pergamon
Description
In this study we investigated under what conditions motion direction changes pop out in continuously moving target/distractor environments. Participants were presented with vertically oriented Gabor patches whose carrier components drifted at a constant speed from left to right and then reversed direction. On any given trial, one of these elements was nominated as the target and the remaining elements were distractors. Distractor elements all changed direction simultaneously. The distractors either moved in a homogeneous manner (i.e. all moved in the same direction), or in a heterogeneous manner (i.e. direction was randomized). The target moved with a similar spatio-temporal trajectory as the distractors from left to right (or vice versa), but changed direction asynchronously with respect to the distracting elements. The participants’ task was to locate this deviant (target) Gabor patch. We show that a motion …
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