Project Title: Trajectories of Cannabis Misuse in Emerging Adults

Project PI: Dr. James MacKillop

Research Team:


Quick Summary: This project leverages an existing longitudinal observational cohort to characterize patterns of change in cannabis use over time among individuals in their early twenties, including over the course of legalization.


Long Summary:



Parlar M, MacKillop E, Petker T, Murphy J, MacKillop J. Cannabis Use, Age of Initiation, and Neurocognitive Performance: Findings from a Large Sample of Heavy Drinking Emerging Adults. J Int Neuropsychol Soc. 2021 Jul;27(6):533-545. doi: 10.1017/S1355617721000618. PMID: 34261551.

Petker T, Ferro M, Van Ameringen M, Murphy J, MacKillop J. Daily, but not occasional, cannabis use is selectively associated with more impulsive delay discounting and hyperactive ADHD symptoms in binge-drinking young adults. Psychopharmacology (Berl). 2021 Jul;238(7):1753-1763. doi: 10.1007/s00213-021-05781-3. Epub 2021 Feb 27. PMID: 33638699.

Morris V, Patel H, Vedelago L, Reed DD, Metrik J, Aston E, MacKillop J, Amlung M. Elevated Behavioral Economic Demand for Alcohol in Co-Users of Alcohol and Cannabis. J Stud Alcohol Drugs. 2018 Nov;79(6):929-934. doi: 10.15288/jsad.2018.79.929. PMID: 30573024; PMCID: PMC6308178.