Figure 1. A 3-node network examples demonstrating how individual centrality metrics were measured.

A) Betweenness centrality: individual in the middle is the necessary intermediary between the left and right individual, as it lies on the shortest path between those individuals; the middle individual therefore has higher individual betweenness centrality than the other two individuals; B) In-degree centrality: both left and right individual have connections towards the middle individual, making the middle individual ‘popular’ as a partner; middle individual therefore has higher individual in-degree centrality than the other two individuals.