RESEARCH BASE

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.

93 results for "tunnel experience" — page 4 of 5

Y_2_02 Verified Altered States

Y_2_02 — Terminal Lucidity

This document examines Terminal Lucidity, a topic within the Consciousness research area. Key areas of investigation include What Is Terminal Lucidity?, Why This Is Anomalous, The Significance for Consciousness Studies.

terminal lucidity paradoxical lucidity near-death lucidity deathbed phenomena Nahm Greyson
Y_2_13 Verified Altered States

Y_2_13 — Ecstatic Seizures: Dostoevsky, Elation, and Temporal Lobe Pre-Ictal States

Ecstatic seizures — epileptic seizures preceded or accompanied by intense feelings of bliss, transcendence, clarity, and profound meaning rather than the typical dread, confusion, or dysphoria — represent one of the most

ecstatic seizure Dostoevsky temporal lobe epilepsy ecstatic aura neurotheology seizure
Y_2_04 Verified Altered States

Y_2_04 — Neuroscience of Death — Terminal Lucidity and Dying Brain

The neuroscience of death has emerged as a legitimate research frontier, revealing that dying is not a simple cessation but a complex neurobiological process with surprising features. Michael Nahm and Bruce Greyson's doc

terminal lucidity dying brain gamma wave surge cortical spreading depolarization near-death experience DMT hypothesis
Y_2_10 Credible Altered States

Y_2_10 — Drowning and Near-Drowning: Aquatic Altered Consciousness

Drowning — defined by the WHO (2002, revised 2005) as "the process of experiencing respiratory impairment from submersion/immersion in liquid" — is one of the leading causes of accidental death worldwide (~236,000 deaths

drowning near-drowning diving reflex submersion hypothermia NDE cold water survival
Y_3_06 Credible Altered States

Y_3_06 — Awe, Wonder, and Transcendent Emotions

Awe — the emotional response to perceived vastness that requires accommodation (cognitive restructuring of existing mental schemas) — has emerged as a frontier topic in affective neuroscience, positive psychology, and ph

awe wonder transcendent emotion self-transcendence vastness accommodation
Y_1_04 Verified Altered States

Y_1_04 — Psychedelic Renaissance — Clinical Research and Consciousness

The psychedelic renaissance — a resurgence of rigorous scientific research on psychedelic substances after decades of prohibition — has produced some of the most significant findings in 21st-century psychiatry and consci

psychedelic renaissance psilocybin MDMA therapy ketamine DMT ayahuasca
Y_1_03 Credible Altered States

Y_1_03 — Classical Antiquity Entheogens Synthesis

This document examines Classical Antiquity Entheogens Synthesis, a topic within the Consciousness research area. Key areas of investigation include Were Ancient Mediterranean Religions Entheogenic?, Why This Matters, The

entheogens psychedelics mystery religions Eleusinian Mysteries kykeon ergot
Y_1_13 Credible Altered States

Y_1_13 — Xenon Gas and Nitrous Oxide: Anesthetic Gases as Consciousness Probes

Nitrous oxide (N₂O — "laughing gas") and xenon (Xe — a noble gas) are two anesthetic gases that have served as remarkable probes of consciousness — revealing how the manipulation of a single molecule or atom can dissolve

nitrous oxide xenon gas laughing gas William James NMDA antagonist anesthetic
Y_1_06 Verified Altered States

Y_1_06 — Psychedelic Research — Modern Science and Ancient Entheogen Parallels

Psychedelic research has undergone a dramatic revival since ~2006, with major studies at Johns Hopkins, Imperial College London, NYU, and MAPS demonstrating the therapeutic potential of psilocybin, MDMA, and ayahuasca/DM

psychedelic entheogen psilocybin DMT ayahuasca LSD
Y_1_07 Credible Altered States

Y_1_07 — Ego Dissolution and Psychedelic Neuroscience

Ego dissolution — the temporary loss of the subjective sense of self, personal boundaries, and the distinction between self and world — is among the most profound and therapeutically significant effects of serotonergic p

ego dissolution psychedelic neuroscience default mode network psilocybin LSD DMT
Y_1_10 Credible Altered States

Y_1_10 — Ibogaine: African Plant Medicine and Addiction Interruption

Ibogaine is a naturally occurring psychoactive indole alkaloid derived from the root bark of the West African shrub Tabernanthe iboga, which has been used for centuries in the Bwiti spiritual tradition of Gabon, Cameroon

ibogaine iboga Tabernanthe iboga Bwiti addiction interruption opioid withdrawal
P_3_08 Verified Philosophy & Meaning

P_3_08 — Pragmatism — American Philosophy

Pragmatism is the most distinctive American contribution to philosophy, originating in the 1870s with Charles Sanders Peirce (1839–1914), developed by William James (1842–1910), and extended by John Dewey (1859–1952). It

pragmatism American philosophy Charles Sanders Peirce William James John Dewey Richard Rorty
P_4_01 Credible Philosophy & Meaning

P_4_01 — Death and the Afterlife Across Cultures

Every known human culture has developed beliefs about what happens after death — making afterlife cosmology one of the most universal features of human thought. The major frameworks include: judgment and reward/punishmen

death afterlife resurrection reincarnation ancestor worship near-death experience
P_1_09 Verified Philosophy & Meaning

P_1_09 — Philosophy of Time

The philosophy of time addresses some of the deepest questions in metaphysics: Is time real or an illusion? Does the present moment have a special ontological status, or are past, present, and future equally real? Does t

philosophy of time McTaggart A-series B-series presentism eternalism
P_1_03 Credible Philosophy & Meaning

P_1_03 — Panpsychism and Modern Philosophy of Mind

Panpsychism — the view that consciousness or experience is a fundamental and ubiquitous feature of reality — has undergone a dramatic revival in academic philosophy over the past two decades. Once dismissed as primitive

panpsychism panprotopsychism IIT Tononi Chalmers combination problem
P_1_16 Credible Philosophy & Meaning

P_1_16 — AI Consciousness Philosophy: Can Machines Think, Feel, and Be Aware?

The question of whether artificial intelligence systems can be conscious — whether machines can genuinely think, have subjective experiences, or possess phenomenal awareness — is one of the deepest unsolved problems at t

AI consciousness artificial intelligence Chinese Room hard problem machine consciousness Alan Turing
P_1_01 Verified Philosophy & Meaning

P_1_01 — The Hard Problem of Consciousness

The Hard Problem of Consciousness, defined by philosopher David Chalmers in 1995, asks: Why does physical processing in the brain give rise to subjective experience? We can explain HOW neurons fire (the "easy problems")

consciousness hard problem qualia explanatory gap Chalmers panpsychism
P_1_12 Verified Philosophy & Meaning

P_1_12 — Philosophy of Perception: Qualia, Illusion, and Direct Realism

The philosophy of perception investigates the nature, objects, and epistemological status of perceptual experience — asking what we are aware of when we see, hear, touch, taste, or smell the world, and how perceptual exp

philosophy of perception qualia phenomenal consciousness illusion hallucination direct realism
P_5_03 Verified Philosophy & Meaning

P_5_03 — Aesthetics — Philosophy of Beauty, Art, and the Sublime

Aesthetics — the philosophical study of beauty, art, taste, and the sublime — has been a central philosophical concern from Plato's suspicion of art as dangerous imitation to contemporary debates about the nature of aest

aesthetics philosophy of art beauty sublime Plato mimesis
R_1_05 Verified Biology & Evolution

R_1_05 — Quantum Biology

Until recently, quantum effects were thought impossible in warm, wet biological systems. The standard assumption held that thermal noise at physiological temperatures (~310 K) would destroy quantum coherence within femto

quantum biology quantum tunneling enzyme catalysis photosynthesis coherence magnetoreception cryptochrome