Fig. 2: Experimental design, probe location and fNIRS data analysis.
From: Dynamic brain networks in spontaneous gestural communication

a Experimental setup and optode probe set. ‘R’ means resting station; ‘I’ means instructions for the task. b The procedure of the fNIRS data analysis. ‘CHs’ means the optode channels; ‘PCA’ means the principal component spatial filter algorithm; ‘CBSI’ means the correlation-based signal improvement method; ‘ROIs’ means regions of interest.