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Schematic of NIRS algorithms. NIR radiation from a dual bulb halogen lamp is emitted into two fiberoptic bundles, one which transmits the signal to a spectrometer which records the intensity of the emitted NIR (red), and the other of which transmits NIR to the parietal bone of the rat. The tissue signal (blue) is measured on the opposite side of the skull and transmitted to a second spectrometer. All signals are exported to MATLAB for off-line analysis.
