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. 2020 Oct 15;10:17519. doi: 10.1038/s41598-020-73435-z

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© The Author(s) 2020

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Procedure of the anticipatory timing task. For each condition, participants were presented a familiarization phase (preceded by a red dot), followed by a warning-imperative phase (preceded by a green dot). During the familiarization phase, participants were asked to listen attentively to the sequence (no action was required). During the warning-imperative phase, participants were presented the sequence they were previously familiarized with, and were asked to tap to the left mouse button in sync with the IB. In the figure, the WB and the IB are marked in red for illustration purposes; in the experiment, they were both obtained by adding the first overtone to the basic beat used to present the periodic pattern.