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. 2023 Feb 9;17:1019778. doi: 10.3389/fnins.2023.1019778

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Copyright © 2023 Wojcik, Shriki, Kwasniewicz, Kawiak, Ben-Horin, Furman, Wróbel, Bartosik and Panas.

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) and the copyright owner(s) 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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ERP plots generated for the electrodes E138, E151, and E150 that showed the smallest cross-correlation in the digit span experiment when the participants were wrong. Red line—the participants that suffered from COVID-19 and with brain fog symptoms. Blue line—the participants that suffered from COVID-19 and without brain fog symptoms. Green line—the participants without COVID-19 episode. See also Tables 6–10 in Appendix A.