Do people take stimulus correlations into account in visual search?

Manisha Bhardwaj, Ronald Van Den Berg, Wei Ji Ma, Krešimir Josic

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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.

Original languageEnglish (US)
Article numbere0149402
JournalPloS one
Issue number3
StatePublished - Mar 2016

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