Psychoactive Alkaloids, including psilocybin, may cause hallucinations, which include Visible, auditory Besides Intense variations in the perception of time and space. The earliest observation of intoxication by Psilocybe semilanceata was in London, England in 1799. or a person dried gram to two dried grams for those with experience. mj two https://psilocybinuk.co.uk/author/moving/feed/