Fig. 4: ADC-to-BOLD agreement of mean FC strength, between corresponding edges.

The solid line fits the positive correlations, while the dotted line fits the negative correlations. The dashed line represents a perfect agreement (identity line). Functional connectivity strength is defined as Fisher-transformed Pearson’s correlation coefficient. There is excellent agreement between ADC-fMRI and BOLD-fMRI positive FC, while BOLD-fMRI negative FC is largely suppressed in ADC-fMRI.