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Medicine

Single Dose of Magic Mushroom Psychedelic Can Cause Anatomical Brain Changes 13

A small study found that a single 25mg dose of psilocybin produced measurable brain changes that were still visible a month later, along with reported improvements in psychological insight, wellbeing, and mental flexibility. The Guardian reports: Evidence for the changes came from specialized scans that measured the diffusion of water along nerve bundles in the brain. They suggested that some nerve tracts had become denser and more robust after the drug was taken. While the findings are preliminary, the scientists said the opposite was seen in ageing and dementia. "It's remarkable to see potential anatomical brain changes one month after a single dose of any drug," said Prof Robin Carhart-Harris, a neurologist at the University of California, San Francisco, and senior author on the study. "We don't yet know what these changes mean, but we do note that overall, people showed positive psychological changes in this study, including improved wellbeing and mental flexibility."

[...] Writing in Nature Communications, the researchers describe another key finding. Those who had the largest spike in brain entropy after psilocybin were most likely to report deeper psychological insight and better wellbeing a month later, underlining the link between flexible thinking and improved mental health. "It suggests a psychobiological therapeutic action for psilocybin," said Carhart-Harris. Prof Alex Kwan, a neuroscientist at Cornell University in New York, said studies in mice had shown that psychedelics can rewire connections between nerves, a form of "plasticity" that could underlie their therapeutic effects. The big question is whether the same occurs in humans. "This study comes closer than most to addressing that question, by giving evidence of lasting changes in brain structure after psychedelic use," he said. But while the results were "exciting," the study involved a small number of people and DTI provides an indirect and limited view of brain connections, he said.

Single Dose of Magic Mushroom Psychedelic Can Cause Anatomical Brain Changes

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  • It seems obvious that psychedelics would change your brain, but it's good to have it verified because finally now we can legally look at the results with an MRI.

    I woke up this morning and Pakistan was making strong efforts towards world peace. I feel like I'm in an alternate reality.
  • Picked and consumed in my late teens. Pretty nice feeling! Like overwhelming joy and giddiness that wants to overflow. Am quite pleased to read these studies, as it would be a bit of a worry if the affects were long term negative. ðYzðY--
  • What about heavy daily use over 27 years? Asking for a friend.

    Also is it true that it's only good changes? *blinks*

Murphy's Law, that brash proletarian restatement of Godel's Theorem. -- Thomas Pynchon, "Gravity's Rainbow"

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