Abstract:Near-infrared spectroscopy (NIRS) is a noninvasive measurement method used to gain the information regarding brain activities through the scalp. Near-infrared light can penetrate several centimeters into the scalp tissue and indicate the oxygen concentration in the outer part of the cerebral cortex. Three major disturbances of NIRS are respiratory, the heartbeat, and Mayer waves. The nonlinear coupling between signals and noise can lead to the loss of meaningful information when linear noise-removal methods ar… Show more
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