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Health committee That's correct.
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee I can speak specifically to university students who we do research with at UBC. This is generally a high-performing group. Of those students, the rates of cannabis use are similar to what we see in the general Canadian population. We have about 35% to 40% who have used in the pas
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee That study was conducted at Harvard a number of years ago. Based on their sort of comprehensive neuropsych IQ tests, they didn't see any differences between the heavy users, the recently abstinent, and those who were never users.
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee Unfortunately, that's not being done, to my knowledge. One thing you'll see running through the testimony and the research on medical cannabis is that it's incredibly difficult to conduct studies using cannabis, either administering it or clinical trials. There's so much research
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee Certainly, and I don't think anyone would advocate cannabis use for young people. The study that you referred to, the Dunedin study, is one of the studies where substantial concerns have been raised about confounds. With the criminalization of cannabis, we see people who are more
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee Well, I think the good research remains to be done as far as the side-by-side efficacy of cannabis versus other anti-anxiety medications is concerned, but our reports from medical users and non-medical users indicate that cannabis does reduce their anxiety. It's one of the primar
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee I'm familiar with the findings of acute cognitive effects of cannabis intoxication. I'm not familiar with the Ottawa pre-natal study that you refer to, but I am quite familiar with the literature on the cognitive effects of cannabis. My sense of the literature is that the effect
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee Well, not exactly. I think it reflects the confounding effects of people who use one or both.
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee I don't know of any evidence to suggest that marijuana leads to increased suicide.
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee No.
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee I'm a registered clinical psychologist. I took medical neuroscience courses.
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee So, yes.
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee I am not a doctor or a pharmacist, no. A health care professional....
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee Yes.
May 13th, 2014Committee meeting
Dr. Zach Walsh
Health committee I think I mentioned some of the risks in the rest of my testimony, the ones you mentioned regarding psychosis. I think we're talking about relative health risks and I was speaking specifically about long-term physical consequences when I talked about a relative absence and quot
May 13th, 2014Committee meeting
Dr. Zach Walsh