Fig. 3: The Brain-to-Brain Coupling results.
From: Interbrain neural correlates of self and other integration in joint statistical learning
a Comparisons between real data and surrogate data used to filter out channels showed no significant effects. Only significant channels with significant results were retained for subsequent analyses. b BtBC analyses revealed a series of Phase × Context interactions. The head color indicates the number of BtBC over a region normalized to the total number of significant BtBC. c Mean BtBC for channel combinations showing significant interactions reported by block for the joint context (blue) and the baseline context (red). The error bar represents the Standard Error of the Mean (SEM). d Heatmaps of non-negative matrix factorization for the join and baseline context. The dendrograms in the heatmap illustrate the organization of the clusters generated by hierarchical clustering. e The pattern of BtBC in Cluster 1. f The increasing trend in BtBC (i.e., the more positive slope) as represented by the NMF-derived Cluster 1 predicted the decreasing trend in RT (i.e., the more negative slope) in the joint context. g The pattern of BtBC in Cluster 2. h The increasing trend in BtBC (i.e., the more positive slope) as represented by the NMF-derived Cluster 2 predicted the increasing trend in intra-brain functional connectivity (i.e., more positive slope) in the joint context.
