Ryohei Nakatsu received his B.S., M.S. and Ph.D. degrees in electronic engineering from Kyoto University in 1969, 1971 and 1982, respectively. After joining NTT in 1971, he mainly worked on speech recognition technology. Since 1994, he has been with ATR (Advanced Telecommunications Research Institute) and currently is the president of the ATR Media Integration & Communications Research Laboratories. His research interests include emotion extraction from speech and facial images, emotion recognition, nonverbal communications, and integration of multi-modalities in communications. He is a member of the IEEE, the Institute of Electronics, Information and Communication Engineers Japan (IEICE-J), as well as the Acoustical Society of Japan.