Development of an Optical Brain-machine Interface

Author

Utsugi, K. ; Obata, A. ; Sato, H. ; Katsura, T. ; Sagara, K. ; Maki, A. ; Koizumi, H.

Author_Institution

Hitachi Ltd., Kawasaki

fYear

2007

fDate

22-26 Aug. 2007

Firstpage

5338

Lastpage

5341

Abstract

We have developed a brain-machine interface (BMI) by using a method based on near-infrared spectroscopy. We call our interface ldquoOptical-BMIrdquo. It functions as a practical, unrestrictive, non-invasive brain-switch without the need for large equipment. During an experiment with the prototype system, an operator manipulated external electrically controlled equipment while we measured the corresponding spatiotemporal changes in the hemoglobin concentration in the blood flowing through his or her pre-frontal cortex by using a probe cap with 22 measurement points.

Keywords

biochemistry; biomedical measurement; haemodynamics; infrared spectroscopy; medical computing; molecular biophysics; neurophysiology; proteins; spatiotemporal phenomena; spectrochemical analysis; user interfaces; blood flow; external electrically controlled equipment; hemoglobin concentration; near-infrared spectroscopy; noninvasive brain-switch; optical brain-machine interface; pre-frontal cortex; probe cap; spatiotemporal changes; Blood; Control systems; Electric variables measurement; Laboratories; Optical feedback; Optical scattering; Optical signal processing; Probes; Spatiotemporal phenomena; Spectroscopy; Adult; Algorithms; Brain; Brain Mapping; Equipment Design; Equipment Failure Analysis; Evoked Potentials; Female; Humans; Male; Man-Machine Systems; Optics and Photonics; Signal Processing, Computer-Assisted; Spectroscopy, Near-Infrared; User-Computer Interface;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2007. EMBS 2007. 29th Annual International Conference of the IEEE

Conference_Location

Lyon

ISSN

1557-170X

Print_ISBN

978-1-4244-0787-3

Type

conf

DOI

10.1109/IEMBS.2007.4353547

Filename

4353547