Fig. 2.

Structure of interareal interactions mediated by phase synchrony in α-, β-, and γ-frequency bands during VWM retention. (A) α-Band matching graph (M^E_min = 0.55, details provided in Fig. S3A). A matching graph reveals spectrally and temporally stable interactions that are likely to underlie the most important communication pathways. The underlying map shows the complete left and right flattened cerebral hemispheres with sulci colored according to the cortical region (Fig. 1C). Lines indicate interareal interactions and are colored according to the connected brain regions. Spheres and annotations indicate brain areas, with radii proportional to their degree. Yellow borders encircle areas with betweenness centrality values in the top 10th percentile. Brain regions with a large degree and betweenness centrality are the network hubs. The bolding of annotations indicates the top three hubs in individual graphs (Fig. S3B). (B) β-Band (18–24 Hz) matching graph (M^E_min = 0.3; Fig. S3 C and D). (C) γ-Band (30–40 Hz) matching graph (M^E_min = 0.5; Fig. S3 E and F). C, central; CA, calcarine; CI, cingulate; CN, cuneus; F, frontal; G, gyrus; IN, insula; P, parietal; S, sulcus; T, temporal; O, occipital; a, anterior; ang, angular; cal, callosal; col, collateral; i, inferior; int, intra; ist, isthmus; fus, fusiform; la, lateral; m, middle; orb, orbital; p, posterior; pa, para; pah, parahippocampal; pla, planum temporale and polare; pe, peri; pr, pre; po, post; s, superior; tr, transverse.