Published: Sept. 15, 2020

Faculty Fellows Christian Hopfer, John Hewitt (IBG Director), and Scott Vrieze, along with Prof. Matt McGue, have been awarded a supplementary grant to study effects of the COVID-19 pandemic on substance use and mental health in their ongoing twin study of recreational marijuana legalization (R01DA042755-S1). They will assess how the stress and disruption of COVID-19 influences (e.g. increases) substance use and mental health problems, whether this is moderated by the legalization context, and if there are individual differences in vulnerability and resilience to these effects.