Variation in intersubject connectivity and intersubject functional connectivity across functional communities. a, The module allegiance matrix; each element indicates the probability that two brain regions belong to the same community across all functional networks estimated from fMRI data acquired during task performance. Using a common community detection method, seven communities were identified across all scanning sessions for all of the subjects. b, The seven communities are projected on to the cortical surface; the communities are named based on their anatomical locations: frontal temporal module (FT), sensorimotor module (SM), auditory module (AUD), default mode system (DMN), language module (LAN), visual module (VIS), and a subcortical module composed of the putamen, caudate, and thalamus (PCT) (see Table 1 for a list of regions in each community). c, In general, ISC for each community displays the same day-to-day pattern as the whole-brain average ISC. SM, DMN and VIS modules display higher ISC than other modules. Using a repeated measures ANOVA, nearly all of the communities exhibited a significant effect for day, with the exception of the LAN module. d, SM, DMN, and VIS modules displayed higher ISFC than other modules. Statistical significance for an ANOVA with the measured effect across the four days are reported as follows: \(*p<0.05;\ **p<0.01;\ ***p<0.001\ .\)