Table 1. . Total number of edges in the unweighted connectivity networks of a representative subject. The corresponding connectivity networks are illustrated in Figure 2. The percentage of new edges that are constructed when the total streamline count increases from 10⁵ to 10⁶ is significant at every scale. The percentage increase is the highest, 65.5%, when the network is constructed at Scale 250. This suggests that a streamline sampling rate of 10⁵ significantly undersamples the network.

Streamline Count	Scale 33	Scale 60	Scale 125	Scale 250
105	1,380	2,243	3,892	6,851
106	1,823	3,163	5,887	11,341
% increase in number of edges	32.1%	41.0%	51.3%	65.5%