Upon arrival to the Integrative Neurophysiology Lab (INPL) at CSU the investigators will explain the protocol procedures and receive signed informed consent from the participants. All eligible participants will be randomized to a coded treatment group by the CTA. After the urine analysis assessment, they will be given one of the four coded cannabis products. All participants will be asked to smoke one single 1- gram marijuana or placebo cigarette per day (Hart et al. 2010). Because these are newly marijuana users, they will be informed about the practical and legal limitations, including barriers to travelling with the medication.