1. Graduate School of Engineering Osaka Electro-Communication University,Neyagawa,Japan
2. ZEAL Corporation,Shinagawa-ku,Japan
3. Osaka Electro-Communication University,Fac. Inf. Commun. Eng.,Neyagawa,Japan
4. University of Vienna,Faculty of Psychology,Vienna,Austria
5. Waseda University,Faculty of Science and Engineering,Shinjuku-ku,Japan