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Scientists have identified Lanmaoa asiatica as the mushroom behind centuries-old reports of people seeing miniature humans in China and the Philippines. Strangely, it contains none of the known psychedelic compounds — suggesting an entirely new hallucinogenic substance may be at work. Cracking its chemistry could unlock new insights into how the brain generates visual hallucinations.
For nearly a century, people across Asia have reported a strikingly specific experience after eating certain wild mushrooms: vivid visions of dozens — sometimes hundreds — of tiny, colorful human figures moving through the real world. Now, researchers at the University of Utah have used DNA sequencing to identify Lanmaoa asiatica as the species responsible for these so-called "Lilliputian hallucinations" in Yunnan, China, and the northern Philippines. The findings were published in the journal Mycologia.
What makes the discovery especially puzzling is what wasn't found. Chemical and genetic testing revealed no trace of psilocybin or any other known psychoactive compound — even after samples were once examined by Albert Hofmann, the scientist who first isolated psilocybin. Researchers now believe the mushroom produces an entirely unidentified hallucinogenic substance, one that may work through a mechanism science hasn't encountered before.
Key Takeaways:
Why it matters: Isolating the unknown compound in L. asiatica could give scientists a reproducible tool to study the brain circuits behind complex visual hallucinations — with potential implications for understanding and treating neurological conditions.
