Elizabeth Aston is an Assistant Professor (Research) in the Department of Behavioral and Social Sciences. She received her Ph.D. in Neuroscience (2012) from Wake Forest School of Medicine where she investigated estimation of breath alcohol concentration and simulated driving behavior among heavy episodic drinkers. During her time at CAAS, she examined predictors of cannabis use disorder severity among regular marijuana users and the relative reinforcing value of marijuana using a behavioral economic marijuana purchase task. Dr. Aston was awarded a K01 career development award from the National Institute on Drug Abuse to conduct qualitative and quantitative research to modify and validate a behavioral economic measure of demand for marijuana. She joined the faculty at CAAS to conduct this research and to receive continued training in qualitative methods, laboratory marijuana administration methodology, behavioral economic theory, and advanced data analysis.