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. 2023 Aug 4;13:12650. doi: 10.1038/s41598-023-39799-8

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© The Author(s) 2023

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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EEG processing and marker extraction methods. (A) Processing of a single EEG: extraction from the database in which the EEG is stored with annotations, segmentation into 10 s epochs according to pre-defined timepoints, identification of artefactual channels (in red) and interpolation. (B) Marker extraction: for each marker, one value is computed at each channel, epoch, and frequency bands. The values for a given epoch are used as input for the machine learning algorithm.