Modeling of Pre-Touch Reaction Distance for Faces in a Virtual Environment. - Dario Alfonso Cuello Mejía; Aoba Saito; Mitsuhiko Kimoto; Takamasa Iio; Katsunori Shimohara; Hidenobu Sumioka; Hiroshi Ishiguro; Masahiro Shiomi (J. Inf. Process., 2021)