Fig. 5.

The results of the group analysis using the optimized ${\tau }_p$ value. The channels with significant $t$-values are presented as described for Fig. 4 ($p<0.05$, Bonferroni corrected). From top to bottom, the maps respectively indicate analyses of the oxy-Hb signal for the NMT, the deoxy-Hb signal for the NMT, the oxy-Hb signal for the VFT, and the deoxy-Hb signal for the VFT. Significant activations were detected for all conditions on both hemispheres.