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. 2022 Sep 5;12:15072. doi: 10.1038/s41598-022-19158-9

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© The Author(s) 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 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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Result of univariate power analysis. A cluster-based permutation test in the electrode × time × frequency space comparing power in number classification task important (NCT imp.) trials and working memory task important (WMT imp.) trials revealed four significant clusters. Panel (A), (B), (C) and (E) show topographic scalp maps averaged over significant time–frequency points of the respective cluster. Significant channels are marked with a black asterisk, not significant channels with a black dot. Panel (D) shows time-frequency plots with power values averaged over all channels (as the four clusters were all significant at nearly all channels). Contour lines frame significant time–frequency points and the numbers label the clusters from 1 to 4. Effect sizes are adjusted partial eta squared. Power values are decibel-normalized with a condition-unspecific baseline ranging from 700 to 200 ms prior to the onset of the relevance cue.