Here you can downloaded the connectomes generated by the PIT Bioinformatics Group. The connectomes were generated from MRI scans obtained from the Human Connectome Project. To download the connectomes, you have to agree to the terms and conditions of Human Connectome Project.
Undirected and directed versions of the brain graphs are both available. The direction of these graphs was defined using edge frequency analysis. Note that this definition of direction may or may not have neurological meaning.