Prefrontal activation while listening to a letter of gratitude read aloud by a coworker face-to-face: A NIRS study

• Daisuke Hori ,

  Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

  * E-mail: daisuke_hori@md.tsukuba.ac.jp

  Affiliation Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan

  http://orcid.org/0000-0001-5832-9923

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• Shinichiro Sasahara,

  Roles Methodology, Resources, Supervision, Validation, Writing – review & editing

  Affiliation Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan

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• Shotaro Doki,

  Roles Methodology, Resources, Supervision, Validation, Writing – review & editing

  Affiliation Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan

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• Yuichi Oi,

  Roles Methodology, Resources, Supervision, Validation, Writing – review & editing

  Affiliation Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan

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• Ichiyo Matsuzaki

  Roles Methodology, Resources, Supervision, Validation, Writing – review & editing

  Affiliations Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan, International Institute for Integrative Sleep Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan

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