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. 2020 Jun 23;10:10216. doi: 10.1038/s41598-020-67032-3

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© The Author(s) 2020, corrected publication 2022

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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.

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Speed-accuracy tradeoff for amputees using the sensory neuroprosthesis. In the “No feedback” condition, BKAs did not receive stimulation-evoked somatosensory feedback. In the “Feedback” condition, they received modulated feedback regarding plantar pressure from the sensory neuroprosthesis. The dashed orange lines denote the mean error rate and mean completion time for the able-bodied participants. The speed-accuracy tradeoff significantly improved for two out of three BKAs when the ladder test was performed while receiving feedback, as indicated by black arrows and stars.