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. 2022 Dec 29;20(1):568. doi: 10.3390/ijerph20010568

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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Grand averages according to the feedback stages. Grand average ERPs (FRN on electrode Fz and P3 on electrode Pz) for win and loss, separated by happy, angry, and neutral faces. *: p < 0.05.