Fig. 2

Matrices and connectograms of four highly structured functional connection states and corresponding cluster centers. States 1 (21%) and 2 (31%) were moderately connected, primarily characterized by increased connectivity with moderate decreases (A–D). State 3, the most frequent (36%), showed predominantly weak connectivity, but with a modular pattern—marked by enhanced connectivity within the DMN and mVN (E and F). State 4, the least frequent (13%), exhibited strong connectivity patterns (G and H).