Brain Net Viewer

Brain Net Viewer is a handy visualization program for spatially rendering brain networks. It can be found here

Nodes

Nodes are read from a tab-delimited ASCII text file with a '.node' file extension (there is nothing else remarkable about these files). These files must have 6 columns:

X (double)     Y (double)     Z (double)     ColorIndex (double)     Size (double)     Label (char)

e.g.:

-54     -61     7     1     0.5     l.IFG
-58     -50     20    1     0.8     -

Notably, the label column cannot be left blank. If there is no appropriate label, use a hyphen character, as in the second row of the example above.

Connections

Connections are between nodes and recorded in an adjacency matrix. If there are N nodes, the adjacency matrix must be N x N.