Journal
COGNITION
Volume 126, Issue 3, Pages 378-390Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cognition.2012.10.011
Keywords
Visual attention; Visual search; Location probability learning; Probability cuing; Spatial reference frame; Implicit learning
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Visual attention prioritizes information presented at particular spatial locations. These locations can be defined in reference frames centered on the environment or on the viewer. This study investigates whether incidentally learned attention uses a viewer-centered or environment-centered reference frame. Participants conducted visual search on a monitor laid flat on a tabletop. During training, the target was more likely to appear in a rich quadrant than in other sparse quadrants. Although participants were unaware of this manipulation, they found the target faster in the rich quadrant than in the sparse quadrants, showing probability cuing. In a subsequent testing phase, participants were reseated to change their viewpoint by 90 degrees. In addition, the target became equally likely to appear in any quadrant. Spatial attention continued to be biased for several hundred trials. Critically, the attentional bias moved with the participant, shifting to a previously sparse quadrant on the screen. Incidental learning of a target's likely locations led to a persistent, egocentric spatial bias. (c) 2012 Elsevier B.V. All rights reserved.
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