Do People Take Stimulus Correlations into Account in Visual Search?

PLoS One

Department of Mathematics, University of Houston, Houston, Texas, United States of America.

Published: July 2016


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Article Abstract

In laboratory visual search experiments, distractors are often statistically independent of each other. However, stimuli in more naturalistic settings are often correlated and rarely independent. Here, we examine whether human observers take stimulus correlations into account in orientation target detection. We find that they do, although probably not optimally. In particular, it seems that low distractor correlations are overestimated. Our results might contribute to bridging the gap between artificial and natural visual search tasks.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4786311PMC
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0149402PLOS

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