To cite package ‘PhysioNIRS’ in publications use:

  Matsui Y (2026). _PhysioNIRS: Governed Near-Infrared Spectroscopy
  Data and SNIRF Input/Output_. R package version 0.6.1,
  <https://github.com/x-biosignal/physionirs>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PhysioNIRS: Governed Near-Infrared Spectroscopy Data and SNIRF Input/Output},
    author = {Yusuke Matsui},
    year = {2026},
    note = {R package version 0.6.1},
    url = {https://github.com/x-biosignal/physionirs},
  }