. >> "techknow's" lindsay moran traveled to south carolina to meet with doctor micheal mithoefer the psychiatrist who led the mdma study. >> the clips you're about to see may look like a standard therapy session, but rachel hope had just been given 125 milligrams of pure mdma. rachel gave "techknow" special permission to view these never before seen clips. she also gave the mithoefers permission to discuss her therapy session. >> but maybe being willing to let go of trying to understand for a few minutes? >> in this videotaped session, rachel shares what she says was a difficult relationship with her mother. >> why didn't she want anybody else to have me either? >> with the mdma i was able to connect with these really primal and scary helpless feelings of what it was really like to have the mother who brought me to life truly not love me or want me. what was wrong with me? how come every mom feels that way but not me? >> because it wasn't about you... it wasn't something wrong with you. (moaning noise) >> how could it not be? she wanted a baby just not me... it was painful and hard a