Fig 2. The uncorrected (top panel) and corrected (bottom) p-values (upper triangular matrix) of testing the paired difference of the Pearson Functional Correlations between the young and the elderly groups, ${\mathit{r}}_{\mathbf{2}\mathit{k}\mathit{l}}^{{\mathit{P}\mathit{F}\mathit{C}}_{\mathit{m}}}-{\mathit{r}}_{\mathbf{1}\mathit{k}\mathit{l}}^{{\mathit{P}\mathit{F}\mathit{C}}_{\mathit{m}}}$ (elderly–young).

The ROI pairs with significant difference are marked in blue for negative values and in red for positive values in the lower triangular matrix.