title: Portable single-channel NIRS-based BMI system for motor disabilities' communication tools.
abstract: A portable near-infrared spectroscopy (NIRS) -based brain-machine Interface (BMI) system featuring single-channel probe, BMI controller and Infrared-emission apparatus was developed. As a switching technology for external devices, the threshold logic was proposed, which detects the blood volume change in the operator's frontal lobe. Experiments showed that the operator was able to change the TV programs or get forward the toy robot within 16 s (the mean is 11.77 s and the standard deviation is 2.35 s) after the mental calculation. In addition, the menu selection program was proposed for motor disabilities and the preliminary test showed that he could successively select the sentence from several candidates. It was shown that this system would provide the external device's control capabilities for motor disabilities.
authors: Hitachi Ltd., Central Research Laboratory, Kokubunji-shi, Tokyo, 185-8601, Japan. kazuhiko.sagara.ex@hitachi.com
authors: Kazuhiko
authors: K
authors: Sagara
authors: Kunihiko
authors: K
authors: Kido
authors: Kuniaki
authors: K
authors: Ozawa
mesh_terms: D000328:Adult; D001921:Brain / Q000502:physiology*; D001931:Brain Mapping / Q000295:instrumentation*; D003143:Communication Devices for People with Disabilities; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005071:Evoked Potentials / Q000502:physiology*; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D008297:Male; D008875:Middle Aged; D008904:Miniaturization; D009069:Movement Disorders / Q000534:rehabilitation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation; D019265:Spectroscopy, Near-Infrared / Q000295:instrumentation*; D014584:User-Computer Interface
chemical_list: D006454:Hemoglobins