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. 2022 Jun 7;13:871143. doi: 10.3389/fpsyg.2022.871143

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Copyright © 2022 Grassini, Segurini and Koivisto.

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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Early alpha waves power density values as recorded (averaged) over the central cluster for neutral, nature, and urban experimental conditions. Error bars show standard deviations (SD).