Altered states of consciousness reveal that ordinary waking awareness is not the only mode of conscious experience. By studying psychedelics, near-death experiences, lucid dreaming, deep meditative states, hypnosis, and flow, researchers gain insight into how consciousness can be transformed — and what this tells us about its fundamental nature.

Key subtopics: Psychedelics, NDEs, Dreaming, Lucid Dreaming, Hypnagogia, Meditation States, Hypnosis, Sensory Deprivation, OBEs, Flow States, Entropic Brain Theory, Mystical Experience

16 Entries
9 Thinkers
6 Open Access

Featured Entries

Altered States 🔓 Open Access 🌱

Alterations in Brain and Immune Function Produced by Mindfulness Meditation

Richard J. Davidson, Jon Kabat-Zinn, et al.

8-week MBSR increased left-sided anterior activation (positive affect) and antibody response to flu vaccine in healthy adults. Effect size correlated with meditation practice time.

Meditation Brain Immune Function
Altered States 🔒 Copyrighted 🌱

Altered Traits: Science Reveals How Meditation Changes Your Mind, Brain, and Body

Daniel Goleman & Richard Davidson

Distinguishes "altered states" (temporary effects during practice) from "altered traits" (enduring changes in personality and behaviour). Comprehensive review of meditation research.

Meditation Long-term effects
Altered States 🔓 Open Access 🌱

AWARE Study (AWAreness During REsuscitation)

Sam Parnia, Peter Fenwick, et al.

2,060 cardiac arrest survivors across 15 UK/US hospitals. 46% had recall; 6% had classic NDE. One case of verified veridical perception (target image placed on shelf visible only from ceiling).

NDE Cardiac Arrest Veridical perception
Altered States 🔒 Copyrighted 🌱

Divided Consciousness: Multiple Controls in Human Thought and Action

Ernest Hilgard

"Hidden observer" monitors experience while hypnotized subject is unaware. Executive ego delegates control to subsystems. Hypnosis involves a dissociation of executive control functions.

Hypnosis Divided Consciousness

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Key Thinkers

Related Pathways

Consciousness for Beginners

No background required. Ten essential works that open the door to consciousness studies — from Nagel's bat to Tononi's integrated information.

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Deepen Your Study

Full-length courses on altered states of consciousness are available on holisticconsciousness.in — the companion LMS for seekersabodepl.com.