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. 2012 Aug 29;7(8):e42719. doi: 10.1371/journal.pone.0042719

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© 2012 Dempere-Marco et al

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Proportion of correct responses for trials in which: A the bottom-up saliency of one of the items in the display was defined by manipulating the visual contrast, and B the top-down saliency of one of the items in the display resulted from an item appearing at a task-relevant location. Performance results for those trials in which the test stimulus is the salient item are distinguished from those in which the test stimulus is a non-salient item (denoted as “other” in the figure) to assess the influence of saliency on behavioural performance. Error bars show one standard error of the mean. Adapted with permission from Melcher and Piazza [19].