Effect of BP filtering and physiological noise on channels activation
To remove scalp generated physiological noise, we performed additional GLM analyses with the short-channel (SC) signal as regressor for each channel (For the BP 0.01–0.09Hz filter, 13 out of 30 participants (43%) were identified as having at least one out of four activated NF channels with the DL-PFC+SC analysis (For the BP 0.01–0.2Hz filter overall, 21 out of 30 participants(70%) were identified as having at least one out of four activated NF channels with the DL-PFC+SC analysis (As we found only a selective activation of channels in the DL-PFC without an association with the activation in other frontal and motor channels for the BP 0.01–0.09Hz filter, we further analyzed participants’ subjective feeling of controlling the gauge with this BP filter.