Fig. 1.

Schematic representation of the functional stability calculation. Firstly, dynamic functional connectivity analysis was performed using a sliding-window approach, with the window size being 64 s and the sliding step being 4 s. For a given voxel, we calculated Pearson’s correlation coefficients between its time course and those of all other voxels within the gray matter mask, resulting in a series of dynamic functional connectivity maps across time windows for that voxel. Then, functional stability of that voxel was quantified by using KCC of these dynamic functional connectivity maps with time windows as raters. Abbreviations: BOLD, blood oxygen level-dependent; KCC, Kendall’s concordance coefficient.