Using Wilcoxon signed-rank test, oxy-Hb and deoxy-Hb responses to EMT vs. NUT vs. NOS stimuli with SCH and SUL administration were compared with those with SAL administration at recording sites where significant difference between categories of visual stimuli were observed with SAL administration (as shown in Fig. 3e, f). This evidence concerns the gene GSTM1 and spindle cell hemangioma.