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. 2008 Sep 26;3(9):e3282. doi: 10.1371/journal.pone.0003282

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Nasr 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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Pearson test of correlation showed that there was a significant correlation between participants' RT and the number of relevant (r = −0.204, p<0.001) and irrelevant (r = 0.401, p<0.001) objects. Importantly, subsequent Pearson test for comparing two correlation coefficients yielded that participants RT is significantly better correlated to irrelevant objects number (p<0.01). Open and closed squares correspond to whole report and partial report trials, respectively. Error bars represent one standard error.