Psilocybe tampanensis and its sclerotia are linked to reports of lilliputian hallucinations, a rare effect involving vivid visions of tiny people after psilocybin use

Psilocybe tampanensis is associated with a rare hallucinatory effect called lilliputian hallucinations, in which people report seeing miniature human figures after consuming psilocybin-containing mushrooms. The phenomenon sits at the intersection of psychopharmacology, perception, and folklore because the visions are unusually specific compared with more typical visual distortions. Reports center on a species also known for producing psilocybin-rich sclerotia, sometimes sold as philosopher's stones. Interest in the effect comes from attempts to understand how serotonergic psychedelics can distort size perception, animate imagined beings, and shape highly narrative visual scenes. The broader significance lies in documenting uncommon psychedelic effects more precisely, both for public understanding and for safer expectations around mushroom use.