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The NIRSIT system is the first fNIRS system that provides millimeter-level spatial resolution while also providing high temporal resolution (125 ms / 8 Hz). NIRSIT is the culmination of three core/ pioneering technologies: 1) dense packing of laser and photo diodes, 2) code-division multiple access (CDMA) and time division multiple access (TDMA) modulation for high temporal resolution, and 3) monolithic IC implementation for high SNR.

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