Dr. Linda Klumpers studies stoners in MRI machines while they're high, and the chemistry behind cannabanoids in the brain.
https://www.cannify.us/
http://www.tipharma.com/fileadmin/user_upload/Theses/PDF/Linda_Klumpers_T5-107.pdf
https://bpspubs.onlinelibrary.wiley.com/doi/full/10.1111/j.1365-2125.2012.04164.x
https://www.ncbi.nlm.nih.gov/pubmed/22885247
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3703229/
https://www.ncbi.nlm.nih.gov/pubmed/23601084
https://www.ncbi.nlm.nih.gov/pubmed/25316574