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Nakagawa-Ohtsuka Lab (Human Welfare Biomedical Engineering Lab)
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A lab that uncovers how hearing works and applies it to assistive devices.
AboutAbout the lab
Turning the mechanisms of hearing into devices.
The Nakagawa-Ohtsuka Lab uses psychological measurement, neurophysiological measurement, acoustic physical measurement, and computer simulation to study human sensation, perception, and cognition, especially the mechanisms of hearing.
Beyond clarifying these mechanisms, the lab also puts a great deal of effort into using the results to develop assistive devices and to optimize audiovisual environments.
The lab also works on applied research, including bone-conduction hearing aids, bone-conduction smartphones, and communication devices that are robust against noise.
Because the research is interdisciplinary, spanning engineering, medicine, neurophysiology, and experimental psychology, students learn the knowledge and techniques of each field as needed.
Key terms
- Bone conduction
- A mechanism by which sound is heard as vibrations of the skull bones that reach the inner ear, rather than through the eardrum
- Neurophysiological measurement
- Measuring the activity of the brain and nerves from signals such as electroencephalography and magnetoencephalography
- Non-invasive
- Examining the body without cutting or injuring it
NewsLab news
A master's student received the 31st Student Excellent Presentation Award from the Acoustical Society of Japan
A doctoral student received the 59th Kiyoshi Awaya Award for Young Researchers from the Acoustical Society of Japan
A master's student received a Research Encouragement Award at the Young Researchers' Presentation Meeting of the Kanto Branch of the Japanese Society for Medical and Biological Engineering
A faculty member received an Oral Presentation Award at IEEE GCCE 2025
A master's student received a Student Encouragement Award at the Life Engineering Division Symposium 2025 of the Society of Instrument and Control Engineers
ResearchResearch themes
Using non-invasive neurophysiological measurement (especially measurement of brain function), psychological measurement, physical measurement, and computer simulation, the lab works to elucidate the mechanisms of perception and cognition, centered on hearing. It also uses the results to develop assistive and medical devices, including bone-conduction hearing aids and bone-conduction smartphones, and to optimize indoor audiovisual environments.
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MembersFaculty
The members of the Nakagawa-Ohtsuka Lab include faculty, secretaries, special research professors and research fellows, doctoral, master's, and undergraduate students, and research students.As of 2026
- ProfessorSeiji Nakagawa
- Associate ProfessorSho Ohtsuka
- Project Assistant ProfessorIrwansyah
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “AFRL Auditory Localization Facility enhances sound localization research for military applications Maj. Taylor Paige” Richard Eldridge / Public domain (cropped)
- Estimating the information processing mechanisms of hearing: “XBio illustration – Auditory cortex” explorebiology / CC BY 4.0 (cropped)
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- Related lab (Human Information Science Lab): “Polar RS400 Heart Rate Monitor” Bill Ebbesen, aka Atomicbre at English Wikipedia / Public domain (cropped)
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