Patient history would help too. (I know there's HIPPA to comply with, but as much as we can get can help train better classifiers.)
Also, anything from here: http://www.nature.com/neuro/journal/v17/n11/fig_tab/nn.3818_...
And the following: http://www.ukbiobank.ac.uk/imaging-data/ http://nmr.mgh.harvard.edu/lab/harvardagingbrain http://www.einstein.yu.edu/departments/neurology/clinical-re...
https://github.com/NeuroTechX/awesome-bci#brain-databases
Also, anything from here: http://www.nature.com/neuro/journal/v17/n11/fig_tab/nn.3818_...
And the following: http://www.ukbiobank.ac.uk/imaging-data/ http://nmr.mgh.harvard.edu/lab/harvardagingbrain http://www.einstein.yu.edu/departments/neurology/clinical-re...