Altered States

A topic within Sleep & Consciousness, itself one of 10 topics in that field and part of Neuroscience.

Reading on Altered States

2 works

Paper2006

Psilocybin Can Occasion Mystical-Type Experiences Having Substantial and Sustained Personal Meaning and Spiritual Significance

Roland Griffiths, William Richards, Una McCann & Robert Jesse

Reports that a single high dose of psilocybin under controlled conditions occasions experiences volunteers rate as among the most meaningful of their lives, restarting clinical research into psychedelics.

link checked 17 Sept 2026

Neuroscience · Sleep & Consciousness

FreeIntermediate

Paper2012

Neural Correlates of the Psychedelic State as Determined by fMRI Studies With Psilocybin

Robin Carhart-Harris et al.

Shows psilocybin reduces activity and connectivity in the brain's default mode network hubs, arguing the psychedelic state results from disintegration rather than increased brain activity.

Neuroscience · Sleep & Consciousness

PaidIntermediate

Reading on Altered States

Psilocybin Can Occasion Mystical-Type Experiences Having Substantial and Sustained Personal Meaning and Spiritual Significance

Neural Correlates of the Psychedelic State as Determined by fMRI Studies With Psilocybin

Other topics in Sleep & Consciousness