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Search 3,721 documents across 34 fields — every claim tier-rated by evidence

3,721 Documents 34 Sections 43,625 Citations 34,852 Keywords Indexed 4 Evidence Tiers

3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.

9 results for "hypnagogia"

Y_4_16 Verified Altered States

Y_4_16 — Hypnagogia: The Threshold State Between Waking and Sleep

Hypnagogia is the transitional state of consciousness experienced during the onset of sleep (waking-to-sleep), characterized by vivid spontaneous imagery, auditory hallucinations, distorted body perception, and loosened

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Y_2_09 Verified Altered States

Y_2_09 — Sleep Paralysis, Hypnagogia, and Liminal States

Sleep paralysis — a temporary inability to move or speak while falling asleep or waking — is one of the most universal and culturally interpreted altered states, experienced by an estimated 7.6% of the general population

sleep paralysis hypnagogia hypnopompia hypnagogic hallucination old hag kanashibari

Verified

INTERDOC_63 — Sensory Gating as Universal Consciousness Threshold Modulator

Melzack and Wall's gate control theory (1965, Science) demonstrated that pain perception is not direct signal transmission but filtered through a spinal "gate" modulated by large-fiber input, small-fiber input, and desce

sensory gating gate control theory anesthesia hypnagogia sleep paralysis NDEs

Credible

INTERDOC_37 — Consciousness, Entity Contact, and the Contact Nexus

[KEY FINDING] Entity encounters are reported through at least seven independent consciousness-alteration pathways: (1) Psychedelics — DMT, psilocybin, ayahuasca, iboga, 5-MeO-DMT, mescaline; (2) Meditation — deep jhāna s

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T_3_12 Credible Psychology & Social

T_3_12 — Altered States of Consciousness: Trance, Meditation, and Sensory Deprivation

Altered states of consciousness (ASCs) — states that differ qualitatively from ordinary waking awareness in terms of perception, cognition, self-awareness, affect, and volition — have been systematically studied since th

altered state of consciousness ASC trance meditation sensory deprivation float tank

B_2_09 Verified Beings & Entities

B_2_09 — Shadow People, Sleep Paralysis Entities, and Dark Figures

Shadow people, dark figures, and night-visiting entities represent one of the most consistently reported anomalous experiences across human cultures. The phenomenon centers on sleep paralysis — a state where the body rem

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Y_4_22 Credible Altered States

Y_4_22 — Hypnagogic & Hypnopompic States

Hypnagogia (the transitional state between wakefulness and sleep onset) and hypnopompia (the transition from sleep to waking) are naturally occurring altered states of consciousness experienced universally by humans. Cha

hypnagogia hypnopompia sleep onset phosphenes tetris effect sleep paralysis

Y_4_05 Verified Altered States

Y_4_05 — Dreams, Dream Incubation, and Oneiric Knowledge

Dreams have been treated as a source of knowledge, prophecy, and divine communication in virtually every civilization. Ancient Mesopotamians maintained professional dream interpreters (šāʾilu) and compiled dream omen com

dream dreaming dream incubation oneiric Asklepion temple sleep

Y_2_17 Verified Altered States

Y_2_17 — Barrier Gating and Altered States of Consciousness

Altered states of consciousness — produced by psychedelics, anesthetics, hypnagogic and hypnopompic transitions, near-death events, deep meditation, breathwork, and sensory deprivation — share a common functional signatu

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