Figure 1From: Single-trial classification of NIRS signals during emotional induction tasks: towards a corporeal machine interfaceNIRS probe arrangement. (a) Sources and detectors were placed symmetrically about the midline in a grid formation, with the inferior row of source pairs positioned along the PF1-PF2 line (International 10/20 Electrode System). (b) Each source pair and its adjacent detector formed one recording site for a total of 8 sites, denoted L1-L4 and R1-R4.Back to article page