Patent ID: 7171250

Claim:
A living body light measurement system, comprising: a plurality of light sources for illuminating a subject with light; a plurality of light detectors for detecting the light illuminated from said plurality of light sources after said light is propagated through the subject; a first arithmetic unit for generating a first signal intensity distribution for said subject based on the light signal detected with said plurality of light detectors; a second arithmetic unit for executing a threshold process to generate a second signal intensity distribution for signal intensities which are at least equal to a predetermined threshold for signal intensity distribution; a recording unit for storing data which defines a displacement between a brain activation area and a maximal location of the signal intensity distribution which is generated when said first arithmetic unit generates the first signal intensity distribution, wherein location information for said plurality of light sources and plurality of light detectors is obtained before said first signal intensity distribution is generated; and a third arithmetic unit for generating a third signal intensity distribution which utilizes the data stored in the recording unit to compensate for the displacement for the threshold-processed second signal intensity distribution.