In Eq. (1), Xi and Yi are the temporal response of group-level oxygenation dynamics (ΔHbO2, ΔHb and ΔtHb) of each detection channels; and are the mean of the group-level oxygenation dynamic response across a 10 minutes of each channels in resting-state; rXY is the correlation coefficient of each channels in male and female groups; n is the number of time-series in resting-state. Here, n is 600 with 1-second time increments. A correlation matrix (Fig. 2(f)) of functional brain network is obtained from correlation coefficients. Correlation analysis was performed for each channels in the left and right region of PFC (Fig. 2(h)) and between left versus right PFC (Fig. 2(i)) to understand the gender-specific effects of hemispheric asymmetry in resting-state functional connectivity.
