The 88th KARC Colloquium

The 88th KARC Colloquium was ended. Thank you for the participation.


Date&Time Wednesday, October 10th, 2007 14:00-16:00
Place Conference Room, 2F, Research Building 1,Kobe Advanced ICT Research Center
Lecturer “Bone-conducted ultrasonic perception: Study on the psychoacoustical and neurophysiological mechanisms and an application to the novel hearing-aid for the profoundly deaf”
Speaker Dr. Seiji Nakagawa
(Institute for Human Science and Biomedical Engineering, National Institute of Advanced Industrial Science and Technology (AIST), Senior Research
Abstracts Bone-conducted ultrasounds (BCUs) can be perceived by the profoundly deaf, who hardly sense sounds even with conventional hearing-aids, as well as normal-hearing subjects. We have proven BCU perception objectively by magnetoencephalography (MEG) and investigated both the psychoacoustical characteristics and the neurophysiological mechanism using psychological, neurophysiological and physical approaches. The results suggest that BCU is processed in the ordinary auditory pathway, but the differences in the perception mechanisms possibly exist in the inner-ear. Furthermore, a BCU hearing-aid (BCUHA) for the profoundly deaf has been developed. Remarkable results have already been achieved; enabling 30 percent of the profoundly deaf trial subjects to hear simple words and half of them to perceive some sort of sound. The BCUHA is far easier to attach than a cochlear implant, which requires surgery, and thus substantially removes the mental and physical burden experienced by cochlear implant users.
Language Japanese
Admission Free
Organizer Dr. Tetsuto Minami, Biological ICT group,
Kobe Advanced ICT Research Center,National Institute of Information and Communications Technology