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. 2020 May 18;10:8166. doi: 10.1038/s41598-020-65168-w

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© The Author(s) 2020

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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Spline maps of normalized beta amplitudes during resting state, baseline condition (left panel), phonological and semantic linguistic tasks (middle and right panels, respectively) for HC and MDD patients. Qualitative analysis of spline maps suggests that, compared with controls, depressed patients had lower levels of beta rhythm in anterior regions of the left hemisphere during the two linguistic tasks. In addition, controls showed an anterior, left-lateralized pattern of activation (i.e., higher percentages of beta band in anterior left vs. right regions) and a bilateral posterior activation in all tasks.