Figure 4.

Hierarchical clustering of Euclidean distance matrices for each group. Modules for all groups were determined using a tree-cut height of 50%. In male water drinkers, 7 modules were identified (A). In male non-frontloaders, 3 modules were identified (B). In male frontloaders, 3 modules were identified (C). The decreased modularity in male alcohol drinking groups (i.e. non-frontloaders and frontloaders) is observed regardless of tree cut percentage height chosen (with the exception of extreme cut off values), (D). In female water drinkers, 5 modules were identified (D). In female frontloaders, 9 modules were identified (E). The increased modularity in frontloaders is observed regardless of tree cut percentage height chosen (with the exception of extreme cut off values), (D).