https://slatestarcodex.com/2019/09/10/ssc-journal-club-relaxed-beliefs-under-psychedelics-and-the-anarchic-brain/ (archive)

Excerpt:

In Relaxed Beliefs Under Psychedelics And The Anarchic Brain: Toward A Unified Model Of The Brain Action Of Psychedelics, Karl Friston and Robin Carhart-Harris try to use predictive coding to explain the effects of psychedelic drugs.

Then they use their theory to argue that psychedelic therapy may be helpful for “most, if not all” mental illnesses.

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