
Dr. Matthew W. Johnson
Professor of Psychiatry & Behavioral Sciences at Johns Hopkins
Dr. Matthew W. Johnson
Dr. Matthew W. Johnson is Professor of Psychiatry and Behavioral Sciences at Johns Hopkins. He is one of the world’s most published scientists on the human effects of psychedelics, and has conducted seminal research in the behavioral economics of drug use, addiction, and risk behavior. Working with psychedelics since 2004, Dr. Johnson published psychedelic safety guidelines in 2008, helping to resurrect psychedelic research. As Principle Investigator he developed and published the first research on psychedelic treatment of tobacco addiction in 2014. Dr. Johnson and colleagues published the largest study of psilocybin in treating cancer distress in 2016. His 2018 psilocybin abuse liability review recommended placement in Schedule-IV upon potential medical approval. He is Principle Investigator on funded studies investigating psilocybin in the treatment of opioid dependence and PTSD. Beyond psilocybin, in 2011 Dr. Johnson published the first-ever blinded human research showing psychoactive effects of salvinorin A, the active constituent in Salvia divinorum. He also published in 2017 the first data indicating that MDMA pill testing services may reduce harm, specifically by reducing drug consumption of unknown or undesired adulterants.
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