It is important to investigate the relationship between ICC values of behavioral measures and HbO measures by vDOT in order to correctly interpret the test-retest results. Table 10 shows corresponding test-retest ICCs from the behavioral data. It is seen that in the win case, the behavioral reliability assessed by ICC(1,1) and ICC(2,1) is fair, while that assessed by ICC(3,1), ICC(1,2), ICC(2,2), and ICC(3,2) is relatively high, i.e., good to excellent. In the lose case, however, the reliability assessed by ICC(1,1), ICC(2,1), and ICC(3,1) is poor, and that assessed by ICC(1,2), ICC(2,2), and ICC(3,2) is fair. These results indicate that the behavioral data are less stable than the vDOT measured data (see Table 7). However, after we investigated the correlation of ICC values of the behavioral data and the HbO data, we found high consistency of these two datasets. The correlations (quantified by Pearson’s correlation coefficient ) in the win and lose case are 0.96 and 0.99, respectively. To demonstrate this point, Fig. 5 shows the six types of ICC values for HbO and behavior score in the two cases.