| 摘要 |
PROBLEM TO BE SOLVED: To provide a biological light measuring device capable of accurately extracting only "brain signals" by a simple device constitution. SOLUTION: The biological light measuring device includes the first detector arranged at a location a predetermined distance spaced apart from a light source and forming the first detecting path and the second detector arranged at a location shorter than the predetermined distance and forming the second detecting path, obtains a correcting coefficient α for optimizing the amplitude of noise components in each of subjects in advance, multiplies the second detecting signal passing through the second detecting path by the predetermined number, and calculates brain activity change from the multiplied second detecting signal and the first detecting signal passing through the first detecting path. COPYRIGHT: (C)2011,JPO&INPIT
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