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. 2020 Jul 28;11:1810. doi: 10.3389/fpsyg.2020.01810

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Copyright © 2020 Ose Askvik, van der Weel and van der Meer.

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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Head model (nose up) with average significant (*p < 0.05) data clusters in the various sources of interest when handwriting is compared to typewriting in all adults. Three significant clusters (marked in black) were found in the parietal left (PL), parietal midline (PM), and parietal right (PR). For handwriting, an event-related synchronized activity in the theta (4–8 Hz) range is apparent in parietal, central, occipital, as well as in frontal areas. Event-related desynchronization is apparent in the beta (12–30 Hz) and gamma (>30 Hz) range in the central and frontal areas.