Network formation around shared hubs and high-strength nodes of the group-averaged networks at the minimal density of 60% in RSN versus SPN (A) and SPN versus SylPN (B).

<p>Overlap and difference in recruitment of local network communities during rest and sentence production. Red–shared hubs and their connections between the networks; purple–high-strength nodes and their connections in SPN; green–high-strength nodes and their connections in RSN; yellow–high-strength hubs and their connections in SylPN. Abbreviations: L/R = left/right; 3b = areas 3a/3b; 44 = area 44; 4a/4p = anterior/posterior part of area 4; 5Ci = area 5Ci; 5M = area 5M; 6 = area 6; 7A/7P/7PC = area 7A/7P/7PC; 17 = area 17; 18 = area 18; Cbl-VI = cerebellar lobule VI; Cu = cuneus; hIP1-3 = areas hIP1-3; Id1/Ig1 = insular areas Id1 and Ig1; LG = lingual gyrus; MCC/PCC = middle/posterior cingulate cortex; MFG = middle frontal gyrus; MTG = middle temporal gyrus; OP1-4 = operculum; PF/PFm/PFop/PFt/PGa/PGp = areas PF/PFm/PFop/PFt/PGa/PGp in the inferior parietal lobule; Put = putamen; SFG = superior frontal gyrus; TE1.1–3.0 = areas TE1.1–3.0; Tp/pf/s/t/m/pm/v = parietal/prefrontal/somatosensory/temporal/motor/premotor/visual divisions of the thalamus. All connectivity matrices are publicly available at <a href="http://figshare.com/articles/The_Functional_Connectome_of_Speech_Control/1431873" target="_blank">http://figshare.com/articles/The_Functional_Connectome_of_Speech_Control/1431873</a>; the codes used to transform the fMRI data to networks can be found at <a href="http://research.mssm.edu/simonyanlab/analytical-tools/" target="_blank">http://research.mssm.edu/simonyanlab/analytical-tools/</a>.