期刊
VISION RESEARCH
卷 46, 期 5, 页码 614-621出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.visres.2005.08.025
关键词
scene context; contextual cueing; visual search; top-down guidance; scene perception
How does scene context guide search behavior to likely target locations? We had observers search for scene-constrained and scene-unconstrained targets, and found that scene-constrained targets were detected faster and with fewer eye movements. Observers also directed more initial saccades to target-consistent scene regions and devoted more time to searching these regions. However, final checking fixations on target-inconsistent regions were common in target-absent trials, suggesting that scene context does not strictly confine search to likely target locations. We interpret these data as evidence for a rapid top-down biasing of search behavior by scene context to the target-consistent regions of a scene. (c) 2005 Published by Elsevier Ltd.
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