Fig. 2: Handedness and global functional connectivity density (gFCD).
From: Associations between handedness and brain functional connectivity patterns in children
Statistical differences (t-score) in resting-state gFCD between right (R) and left-handers (L) (a) or the left (Ml) and right (Mr) somatomotor ROIs (b) in Brodmann area 3, superimposed on inflated dorsal views of a human brain template. Violin plots show that compared to right- and mixed-handers (M), left-handers had lower average gFCD in the Ml (right panel) and higher average gFCD in Mr (left panel), both in the Discovery (n = 909) and Replication (n = 891) samples (c). Density plots show the distributions of average gFCD in the Ml (right) and Mr (left) ROIs (d) and the handedness index (e) for L (n = 600), R (n = 600), and mixed handers (M, n = 600). f Reproducibility of the linear association between the handedness index and the children’s handedness scores across L, R, and M in the Discovery and Replication samples. Statistical model: two-sample t-test (2-sided). An FDR-corrected threshold PFDR < 0.05 (2-sided) was used to display the statistical maps. Source data are provided as a Source Data file.
