We imaged the OPPS participants when they were 18 to 21. They're now 25 to 30 years old. I would love to be able to re-image and retest them. They have been in the program since they were born and they have gone off to university or to other parts of the country, so it's hard to find them.
Imaging is expensive. There's not a lot of funding out there for this kind of research, so as much as I'd like to, I would need the funding to be able to do that.