Visual Learning Alters the Spontaneous Activity of the Resting Human Brain: An fNIRS Study

Figure 2

(a) The optode probe set with seven detectors (green) and eight sources (red), resulting in 22 channels (blue). (b) Cerebral projections of light sources and detectors overlaid on the participants’ scalp (top). The two 22 channels (total 44 channels) were fitted on the frontal/central and posterior cortex of the head, respectively (bottom). (c) The total 44 channels on the head model.