NDLI: A NIRS-based brain-computer interface system during motor imagery: System development and online feedback training

Content Provider	IEEE Xplore Digital Library
Author	Kanoh, S. Murayama, Y.-m. Miyamoto, K.-i. Yoshinobu, T. Kawashima, R.
Copyright Year	2009
Description	Author affiliation: Graduate School of Biomedical Engineering, Tohoku University, Aoba-yama 6-6-05, Sendai, 980-8579 Japan (Yoshinobu, T.) \|\| Graduate School of Engineering, Tohoku University, Aoba-yama 6-6-05, Sendai, 980-8579 Japan (Kanoh, S.; Murayama, Y.-m.; Miyamoto, K.-i.) \|\| Institute of Development, Aging and Cancer, Tohoku University, Seiryo-machi 4-1, Aoba, Sendai, 981-8555 Japan (Kawashima, R.)
Abstract	A brain-computer interface (BCI) to detect motor imagery from cerebrum hemodynamic data measured by NIRS (near-infrared spectroscopy) was constructed and the effect of the online feedback training for subjects was evaluated. Concentrations of Oxy- and deOxy-hemoglobin in the motor cortex during motor imagery of subject's right hand was measured by 52-channel NIRS system, and the mean magnitude of measured signal near C3 in the International 10–20 System was visually fed back online to the subject. On two out of three subjects, it was shown that the ratio between the averaged value and the standard deviation over trials (S/N ratio) of Oxy-hemoglobin signal elicited by the imagery of subject's right hand was increased by the 5-day online feedback training. Detailed investigation of the effect of the online feedback training on brain activities was left for further study.
Starting Page	594
Ending Page	597
File Size	536383
Page Count	4
File Format	PDF
ISBN	9781424432967
ISSN	1557170X
DOI	10.1109/IEMBS.2009.5333710
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Brain computer interfaces Feedback Electroencephalography Frequency Biomedical measurements Switches Hemodynamics Neurofeedback Reproducibility of results Spectroscopy
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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