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. 2021 Jan 21;11:1928. doi: 10.1038/s41598-021-81156-0

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© The Author(s) 2021

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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(a) Top view of setup and (b) trial schedule of Experiments 1 and 3. Participants started a right-hand reaching movement after a Go-cue toward their unseen left thumb or index finger. A brief vibrotactile probing stimulus was presented on their right index finger (Experiments 1 and 2; illustrated here) or their left little finger (Experiment 3) at several moments during the trial (thunderbolts in panel (b), here times are shown for Experiments 1 and 3). After the end of the reach, participants responded as to whether or not they detected the probing stimulus.