作者单位:Tohoku Univ, New Ind Creat Hatchery Ctr, Aoba Ku, Sendai, Miyagi 9808579, Japan[1]Tohoku Univ, Grad Sch Informat Sci, Aoba Ku, Sendai, Miyagi 9808579, Japan[2]Kobe Univ, Biosignal Res Ctr, Nada Ku, Kobe, Hyogo 6578501, Japan[3]Tohoku Univ, RIEC, Aoba Ku, Sendai, Miyagi 9808577, Japan[4]