>(psilocybin) with known doses as used in research. Ah interesting to know. ​ >As much as I know will shrooms trigger psychosis only in people who carry genetic predispositions for it and only with massive abuse (regular use of large doses) and bad circumstances. Somebody else commented he/she ended up with HPPD. I guess, it is hard to be certain if there is a genetic predispositions or not.