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. 2023 Jul 21;102(29):e34418. doi: 10.1097/MD.0000000000034418

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Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 4. — Correlation between psychological tests and changes in oxy-Hb changes. Correlations between psychological tests (SDS, STAI-T, STAI-S, and TEIQue-SF) and [Oxy-Hb] was displayed according to the probe setting. The green channel indicates a significant correlation between the [Oxy-Hb] changes and (A) SDS, (B) STAI-T, (C) STAI-S, and (D) TEIQue-SF. [Oxy-Hb] = oxygenated hemoglobin concentration, SDS = Zung self-rating depression scale, STAI = state-trait anxiety inventory, STAI-S = state anxiety or anxiety about an event of STAI, STAI-T = trait anxiety or anxiety level as a personal characteristic of STAI, TEIQue-SF = trait emotional intelligence questionnaire-short form.