Boxplots of edge lengths

<p><b> of connections that showed significant difference between groups (by frequency band).</b> Edge length was determined from the relative physical distance between nodes on a two-dimensional plane as shown in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0032508#pone-0032508-g001" target="_blank">Figure 1B</a>. Edges with significantly different connection strength differed significantly in length across frequency bands (p = 0.00001). Significance level represents the p value for the Kruskal Wallis test examining the equality of the median edge length values between groups. Short horizontal lines within boxes show the median edge length, with notches indicating 95% confidence intervals of the medians. Median edge length was significantly greater for alpha than any other band. The width of the bars is proportional to the number of edges that were significantly different between groups in the frequency band: in the delta band, there were 17 significant edges; in theta, 42; in alpha, 141; and in beta, 121.