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. 2015 Feb 11;6:114. doi: 10.3389/fpsyg.2015.00114

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Copyright © 2015 Horr and Di Luca.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Results of Experiment 2. (A) Proportions of judging continuous > isochronous > anisochronous > empty as a function of duration difference between standard and comparison. (B) Point of subjective equality (PSE) and just noticeable difference (JND) calculated from response proportions using the Spearman-Kärber method. Asterisks indicate a significant difference of the PSE from zero and between the three conditions comprising one empty interval. Error bars are S.E.M.