Dr. Susan Weiss, Cannabis Research and Policy: State of the Science

October 2021

Dr. Susan Weiss is the Director, Division of Extramural Research at the National Institute on Drug Abuse (NIDA), which oversees NIDA’s extramural programs, operations planning, and trans-NIH initiatives, such as the Adolescent Brain Cognitive Development (ABCD®) and HEALthy Brain Child Development (HBCD) studies, and the Brain Research through Advancing Innovative Neurotechnologies® (BRAIN) Initiative. Dr. Weiss also serves as a senior science advisor to the NIDA Director and scientific liaison to the NIH, HHS, and other Federal Agencies. Previously, she served as the Chief of the Science Policy Branch and Acting Director of NIDA’s Office of Science Policy and Communications.

Before coming to NIDA, Dr. Weiss was the Senior Director of Research at the National Mental Health Association (now Mental Health America), and previously she directed a translational research program in the Biological Psychiatry Branch of the National Institute of Mental Health.

Dr. Weiss received multiple awards, including NIH Plain Language Awards, NIH and NIDA Director’s Awards, and an Emmy for her contributions to the HBO Addiction Project. She has published more than 150 scientific articles and chapters, graduated from the State University of New York at Stony Brook, and received her Ph.D. in Psychology from the University of Maryland.

Previous Webinars

Joshua Gowin, PhD

Aug 13, 2026 01:00 PM Mountain Time

Brain Function Outcomes of Recent and Lifetime Cannabis Use

Joshua Gowin, PhD, is an Associate Professor within the Department of Radiology at the University of Colorado Anschutz Medical Campus. As a neuroscientist, his primary research program investigates the neural mechanisms of addiction, specifically focusing on how substance use alters frontostriatal […]

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Andrew Maxwell Phineas Jones, PhD

July 15th @ 11:00AM MT

Ten years of Cannabis micropropagation: What has changed and what are the best uses

 Dr. A.M.P. (Max) Jones is a professor and leading researcher in cannabis biotechnology at the University of Guelph, Canada. For the last decade his research has focused on plant tissue culture and micropropagation systems for cannabis and in 2018 his lab […]

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Kent Hutchison

July 9, 2026, 1 PM Moutain Time

Dr. Kent Hutchison is a Professor of Psychiatry at the University of Colorado Anschutz Medical Campus and Director of the Rocky Mountain Center for Cannabis Research. He received his Ph.D. from Oklahoma State University, completed postdoctoral training at Brown University, and has developed NIH-funded programs of research spanning alcohol, […]

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Tony P. George, MD, FRCPC

June 11, 2026 at 1 PM MDT

Understanding the links between cannabis use and mental illness: Implications for treatment

 

Dr. George is Professor of Psychiatry in the Temerty Faculty of Medicine at the University of Toronto (UofT), and Senior Scientist at the Centre for Addiction and Mental Health (CAMH). He received his B.Sc. (1988) and M.D. (1992) degrees from […]

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Jacob MacWilliams, Ph.D.

May 20, 2026 11:00AM MDT

Unlocking the mystery of a key hemp pest, cannabis aphid

Dr. Jacob MacWilliams is a research scientist in Dr. Punya Nachappa’s lab in the Agricultural Biology Department at Colorado State University. Jacob received his Ph.D. in Biochemistry and Molecular Biology at the University of California, Riverside focusing on cowpea aphid resistance in […]

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