Long-term effects of psychedelic drugs : A systematic review Jacob S.Adaya, Cayla M.Mitzkovitz, Emily K.Bloesch, Christopher C.Davoli, Alan K.Davis Neuroscience and Biobehavioral Reviews, 2020. Doi : 10.1016/j.neubiorev.2020.03.017   A B S T R A C T Research into the basic effects and therapeutic applications of psychedelic drugs has grown considerably in recent years. Yet, pressing questions remain regarding the substances’ lasting effects. Although individual studies have begun monitoring sustained changes, no study to-date has synthesized this information. Therefore, this systematic review aims to fill this important gap in the literature by synthesizing results from 34 contemporary experimental studies which included classic psychedelics, human subjects, and follow-up [...]