Mysterious Mushroom Causes Users to See Tiny People; Scientists Puzzled

A peculiar fungus native to Asia is causing users to experience a unique and unexplained form of hallucination: the appearance of tiny, detailed human-like figures. Unlike typical hallucinogenic mushrooms that contain psilocybin or psilocin and produce widespread psychedelic effects, the mushroom known as Lanmaoa asiatica seems to induce a singular, bizarre phenomenon. Those who consume it report seeing miniature beings, often described as "gnomes" or "little people," interacting with their surroundings, a feat unmatched by any other known fungus.

Research published recently in the journal Mycologia has shed new light on this enigmatic mushroom. While anecdotal reports have circulated for years, particularly in regions where the mushroom is consumed culinarily, scientific understanding of its psychoactive properties remains elusive. University of Utah researcher Colin Domnauer, a leading expert on the Lanmaoa genus, stated in a recent interview that "Even to this day science doesn’t understand what’s going on in the brain to cause this, or how to treat it, and this mushroom is the only thing that we currently know of to reliably produce this effect."

The hallucinations induced by Lanmaoa asiatica are distinct from those caused by other psychedelic substances. Instead of abstract visual distortions or altered color perception, users report encountering fully formed, three-dimensional figures. These beings are said to appear after a delay of 12 to 24 hours and can persist for several days. "These aren’t like some vague hallucinations, these are like three-dimensionally-rendered, highly-detailed figures inhabiting your exterior world," Domnauer explained. "And they’re also interacting with objects in the real world — like crawling up chairs and tables or under doorways."

The Search for an Unknown Compound

The mushroom itself, a type of bolete, is native to the pine forests of southwestern China and the northern Philippines. It is often harvested wild and sold in local markets, typically prepared as a food ingredient. However, undercooking has led to reports of these unusual hallucinations, which have now drawn scientific attention. Although the species was scientifically described only about a decade ago, Indigenous communities have long been aware of its peculiar effects. "The little people are said to typically like teasing, playing with or harassing the person seeing them," Domnauer noted, adding that users generally are not fearful of the experience and continue to consume the mushroom.

The scientific mystery deepens because Lanmaoa asiatica does not appear to contain known psychoactive compounds like psilocybin. This lack of identifiable chemicals has hindered research, as scientists have been unable to isolate and identify the substance responsible for the visions. "There weren’t even any known psychoactive compounds, so it seemed like this must be some new hallucinogenic compound waiting to be discovered, because there’s nothing that matches anything in our database," Domnauer said. His research team is currently sequencing the genomes of mushrooms in the Lanmaoa group to identify potential genes involved in producing novel compounds.

While early tests on mice have yielded a few potential candidates for the active compound, the researchers are still a considerable distance from confirming its identity and understanding its effects on humans. The phenomenon, known as Lilliputian hallucinations, draws parallels to the fictional inhabitants of Gulliver's Travels, a satirical novel by Jonathan Swift published in 1726, which depicted minuscule beings. Unlike the extensive research into psilocybin's therapeutic potential, the study of Lanmaoa asiatica remains in its infancy. Domnauer himself has no immediate plans to ingest the raw mushroom, preferring to focus on the scientific investigation rather than firsthand experience, especially as the cooked mushroom is reportedly quite flavorful.