Natural Psychotropics / Johnathan Ott| interviewed by Roy Tuckman. - Dr. Johnathan Ott traces the use of spiritual psychotropics by indigenous peoples around the world, and more specifically the Amazon Rain forest drug, Iawasca. Although created as a synthetic in the 1960's, the natural form of this drug produced a longer lasting, more meditative experience which is more conductive of spiritual insight. Dr. Ott goes on to discuss the health effects of Iawasca, and its potential use as an anti-depressent. - BROADCAST: KPFK, 12 Apr. 1994.