> Researchers will track how various factors — including diet, sleep patterns, gender, race, economic circumstance, air quality, and exercise habits, as well as substance use — correlate with changes in the subjects’ brain scans over the years.

> "How cool will it be if we can collect data on 9- and 10-year-olds that will help predict how all young people will function in later life?" asks Garavan. "This is the sort of information that will truly help people parent, and legislate, and educate, and live healthy lives."

I'm not as enthusiastic about that future as Garavan is, and especially not the idea that it could shape legislation in any kind of significant way. Doubly so if it's going to be done via statistical models and correlation, rather than a deeper understanding of the mechanisms involved.