Difference in vocal tract shape between upright and supine postures: Observations by an open-type MRI scanner

Tatsuya Kitamura , Hironori Takemoto, Kiyoshi Honda, Yasuhiro Shimada, Ichiro Fujimoto, Yuko Syakudo, Shinobu Masaki, Kagayaki Kuroda, Noboru Oku-uchi and Michio Senda ATR Human Information Science Laboratories, 2–2–2 Hikaridai, ‘‘Keihanna Science City,’’ Kyoto, 619–0288 Japan ATR Brain Activity Imaging Center, 2–2–2 Hikaridai, ‘‘Keihanna Science City,’’ Kyoto, 619–0288 Japan The Institute of Biomedical Research and Innovation, 2–2 Minatojima Minamimachi, Chuo-ku, Kobe, 650–0047 Japan