Weekend, fda advisory committee voted overwhelmingly against the use of a drug called the mdma, more commonly known as ecstasy to treat post-traumatic stress disorder the fda has final say whether the treatment will be approved, but the vote is a big setback when member of the committee who voted against approving mdma said he believes it's premature this moment to authorize the drug, but also said, quote, i think this is a really exciting citing treatment i'm really encouraged by the results to date, there are a number of studies being done on potentially exciting treatments for mental health issues. >> several years ago, i reported for cbs is 60 minutes on studies being done with psychedelics in particular, psilocybin a powerful mind-altering substance that may have potential in the treatment of depression, anxiety, even addiction we want to show you that 60 minutes report now and we should know that one of the researchers in at roland griffiths died in october, the age of 77 after a diagnosis of colon cancer people asked me, you won't do it again, i said, hell, no, i