Via Ultraculture, Jason Louv on how magic mushrooms temporarily quiet portions of the brain that normally constrain us:
According to two new studies released this week, psilocybin mushrooms apparently work by decreasing activity in key areas of the brain, rather than increasing it. Blood flow decreases to the medical prefrontal cortex (mPFC) and posterior cingulate cortex (PCC). Overactivity in the mPFC is associated with depression, one reason why psilocybin can be associated with antidepressant effects; the PCC is often associated with consciousness and identity.
Researchers suggest that what may actually be happening with psychedelics is decreased blood flow to brain areas that constrain our sensory experience of the world and our sense of identity—allowing the brain to relax its grip on ordering reality and open up to a broader spectrum.
Professor David Nutt, from the Department of Medicine at Imperial College London, said: “We found that psilocybin actually caused activity to decrease in areas that… constrain our experience of the world and keep it orderly. Deactivating these regions leads to a state in which the world is experienced as strange.”
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