Fig. 4

The average brain FC in the theta (top) and beta (bottom) bands is illustrated for stunted and non-stunted groups. The connections (edges) between cortical regions in the brains are plotted with the same threshold for all three groups, and thus, the weakest connections are not shown in the brains and the thicker the line is the higher the FC value is. Brain ROIs belonging to different lobes are in different colors—frontal ROIs in blue, temporal ROIs in green, central and parietal ROIs in yellow, and occipital ROIs in red. The corresponding adjacency matrices for each brain FC figure can be found in Additional file 1: Figure S3