Fig. 4.

Characteristics of the neurometabolite networks. In A, the density of the networks is displayed at different thresholds (i.e. the p-value of the correlation). It can be observed that the density of the networks is much higher than would be expected by chance only. B displays the distribution of distances between the nodes, including the distances between all possible connections. The neurometabolite networks include both long- and short distance connections. The density of networks was set to 0.2 for all three metabolites.