Node connection strength in Neurotree.
Each node in Neurotree can be characterized by its mean distance from every other node. Below is a histogram of mean distances for every node in the tree. (The final bin includes nodes that are not connected to the main tree.)

Mean inter-neuroscientist distance
0-
0-
0-
0-
0-
	Mean distance

20 most tightly coupled nodes.
Below are the nodes with shortest mean distance. Note the strong bias toward systems and, in particular, the visual system. This suggests either that visual neuroscientists are highly promiscuous or that the population of the tree is biased by having been started in a vision lab. This question will only be answered with more data!