Fig. 2From: Hemodynamic response to familiar faces in children with ADHDPlacement of NIRS probes. The placement of NIRS probes. The probes were placed over the left and right temporal areas centering at T5 and T6 of the International 10–20 system. T5/T6 is in the yellow circle. The distance between the probes was set at 3 cmBack to article page