Health committee  But it could have been a year before. It could have been within six months. It could have been once.

Health committee  Right. I think that the recent study that was done by Dr. Breiter, which Dr. Sabet was talking about, was on casual use among university students. They were finding significant differences.

Health committee  That's correct.

Health committee  No. We were able to control for that, because we knew what their exposures were. We used statistical measures to control for that. There was actually an equal number of prenatally exposed in each group.

Health committee  Could you say that last part again?

Health committee  We did our analysis without those people in the analysis and found the same results. The other thing is that those participants hadn't smoked anything in the last month, possibly two months, so we're pretty sure those are sound results.

Health committee  Yes.

Health committee  We did try to control for that. Yes, caffeine can affect the brain activity. Both groups had the same amount of caffeine intake and with the same times from use to imaging, so that was controlled for. I don't know about sugar. I don't know about that.

Health committee  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.

Health committee  Subject pool, yes.

Health committee  That's right.

Health committee  Educate them so they don't use it. Give them other ways of feeling that dopamine high that they're searching for.

Health committee  That's not my area of expertise. My opinion would be that legalizing it would increase the use.

Health committee  It's a longitudinal study.

Health committee  These children were followed up since they were born, every two or three years. Then the study that I did was when they were 18 to 21.