For those who are interested, the human connectome project is in the process of acquiring and publicly releasing a database of 1000+ MRIs collected from normal subjects:<p><a href="http:&#x2F;&#x2F;www.humanconnectome.org&#x2F;data&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.humanconnectome.org&#x2F;data&#x2F;</a>