A novel autonomic activation measurement method for stress monitoring: non-contact measurement of heart rate variability using a compact microwave radar. - Satoshi Suzuki; Takemi Matsui; Hayato Imuta; Maki Uenoyama; Hirofumi Yura; Masayuki Ishihara; Mitsuyuki Kawakami (Medical Biol. Eng. Comput., 2008)

Non-contact determination of parasympathetic activation induced by a full stomach using microwave radar. - Shinji Gotoh; Satoshi Suzuki; Hayato Imuta; Masayuki Kagawa; Zorig Badarch; Takemi Matsui (Medical Biol. Eng. Comput., 2009)