Dráulio Barros de Araújo has a Ph.D. in physics applied to medicine and biology, and a pos-doc in radiology. He has worked as a professor at the University of Sao Paulo and since 2009 he holds a full professor position at the Brain Institute (UFRN), Natal, Brazil. He has been doing research with psychedelics since 2006 and has published over 40 scientific papers on the subject. In 2015 he completed a first open label trial with ayahuasca in treatment resistant depression, and in 2018 the first and only randomized placebo-controlled trial to test a psychedelic substance (ayahuasca) in treatment-resistance depression.