FIG. 2.

Small-world properties of the hemispheric structural networks over a range of sparsity thresholds (S). (A) right hemispheric networks of right-handers; (B) left hemispheric networks of right-handers; (C) right hemispheric networks of left-handers; (D) left hemispheric networks of left-handers. Gamma, lambda, and sigma denote the normalized clustering coefficient, normalized characteristic path length, and small worldness, respectively. They were evaluated using the subjects' hemispheric networks. The four hemispheric networks had an average gamma >1, an average lambda of nearly 1, and small-worldness sigma of >1, which indicate small-world properties.