She received her PhD from the University of Missouri in 2010; completed her clinical internship at the Durham Veterans Affairs Medical Center in 2010; and completed her postdoctoral training at Duke University in 2013. Her research uses prospective longitudinal and case-control designs to understand the causes, course, and consequences of problematic substance use, primarily cannabis use. Her main interests involve understanding how cannabis use affects both mental health and physical health across the lifespan. Dr. Meier also has expertise in using retinal imaging, a tool taken from ophthalmology, to understand the vascular pathophysiology of psychosis.