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. 2022 Jul 16;7:63. doi: 10.1186/s41235-022-00403-8

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© The Author(s) 2022

Open AccessThis 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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Fig. 2 — Effects of face masks on facial emotion recognition. A–C, distribution of hit rates, confidence ratings and performance awareness by mask condition and age cohort. Data are binned (bin width 0.10 for hit rates and performance awareness and 0.20 for confidence ratings). D–E, mean hit rates, confidence ratings and performance awareness by mask condition and age cohort. G–I, scatter plots showing the relation between age and mask effects on hit rates, confidence ratings and performance awareness in the old cohort. Dots represent individuals, lines are regression lines. Confidence ratings are rescaled to unity (minimal possible value 0, maximal possible value 1)