Fig. 2.

(A) Small-worldness values E_loc/E_loc,rand and (E_loc/E_loc,rand)/(E_glob/E_glob,rand) of the whole brain network, (B) efficiency of the whole brain network, and (C) correlation between whole brain network efficiency and age. All measures are represented as functions of connection density across a range from 0.10 to 0.40 with an increment of 0.05. Circles and squares in (A) and (B) and upper triangles and downward triangles in (A) represent means and error bars in (A) and (B) represent standard deviations across all subjects. In (C), empty squares indicate significant correlation coefficients and stars indicate significant differences in correlation between dominant and nondominant hand grip.