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 1 of 5

Y_2_05 Credible Altered States

Y_2_05 — Near-Death Experiences: Cross-Cultural Analysis

Near-death experiences (NDEs) — profound subjective experiences occurring during clinical death, cardiac arrest, or perceived proximity to death — have been reported across virtually all cultures and historical periods.

near-death experience NDE cross-cultural NDE tunnel experience life review being of light out-of-body experience

K_1_14 Credible Consciousness

K_1_14 — Qualia: The Subjective Experience Problem

Qualia (singular: quale) — the term used in philosophy of mind for the subjective, experiential properties of conscious mental states — the redness of red, the painfulness of pain, the taste of coffee, the felt quality o

qualia subjective experience hard problem phenomenal consciousness Mary's Room what-it-is-like

K_4_18 Verified Consciousness

K_4_18 — Near-Death Experiences: Evidence, Neuroscience, and the Consciousness Debate

Near-death experiences (NDEs) are complex subjective experiences reported by approximately 10–20% of cardiac arrest survivors, characterized by feelings of peace, tunnel vision, life review, encounters with deceased pers

near-death experience NDE cardiac arrest consciousness out-of-body AWARE study

T_5_14 Credible Psychology & Social

T_5_14 — Peak Experiences and Ecstasy: Maslow, Mystical States, and Transformative Moments

Peak experiences — moments of ecstatic joy, profound meaning, ego-dissolution, and felt unity with the world — were identified by Abraham Maslow (1964) as among the most important experiences in human life: rare, spontan

peak experience Maslow ecstasy mystical experience flow awe

Y_2_16 Credible Altered States

Y_2_16 — Near-Death Experience Latest Research

Near-death experiences (NDEs) — the vivid, structured experiences reported by approximately 10–20% of cardiac arrest survivors (including out-of-body perception, tunnel experiences, life reviews, encounters with deceased

near-death experience NDE AWARE study Sam Parnia cardiac arrest consciousness

P_5_10 Verified Philosophy & Meaning

P_5_10 — Philosophy of Religion: Faith, Reason, and Mystical Experience

The philosophy of religion is the branch of philosophy that critically examines the concepts, arguments, and experiences at the heart of religious belief and practice — not from within any particular faith tradition but

philosophy of religion theism atheism faith and reason cosmological argument ontological argument

M_3_04 Verified Forbidden Archaeology

M_3_04 — Ancient Mining and Tunneling Technology

Ancient mining and tunneling represent some of humanity's most technically demanding and dangerous engineering achievements, dating from Paleolithic flint mines (Grimes Graves, England, c. 3000 BCE; Spiennes, Belgium, c.

ancient mining tunneling fire-setting Laurion Rio Tinto Timna

K_4_15 Credible Consciousness

K_4_15 — Shared Death Experiences

Shared death experiences (SDEs) are reported phenomena in which a person who is physically healthy — typically a family member, caregiver, or bystander present at a death — describes experiencing some or all of the featu

shared death experience SDE near-death experience NDE deathbed vision empathic death

Credible

INTERDOC_22 — Near-Death Experience, Afterlife Belief, and Cross-Cultural Evidence

[KEY FINDING] The AWARE (AWAreness during REsuscitation) study — a four-year prospective study across 15 hospitals in the UK, US, and Austria, led by Sam Parnia (published 2014, Resuscitation) — found that 39% of 140 car

near-death experience NDE afterlife out-of-body experience cardiac arrest AWARE study

ZC_1_05 Verified Social Science

ZC_1_05 — Psychology of Religion & Spiritual Experience

The psychology of religion — the empirical study of religious and spiritual experience, belief, and behavior — was inaugurated by William James's The Varieties of Religious Experience (1902), which established that relig

social-science of religion William James peak experience Maslow neurotheology mysticism scale

T_3_13 Credible Psychology & Social

T_3_13 — Flow States: Optimal Experience, Peak Performance, and the Psychology of Engagement

Flow — the state of complete absorption in an activity where action and awareness merge, self-consciousness fades, time perception distorts, and performance feels effortless yet optimal — was first systematically describ

flow state Csikszentmihalyi optimal experience peak performance intrinsic motivation autotelic

D_4_03 Verified Sites & Artifacts

D_4_03 — Ancient Tunnels, Erdstall, and Subterranean Networks

Humanity has dug, carved, and inhabited subterranean spaces for thousands of years — from the vast underground cities of Cappadocia (Derinkuyu, 8+ levels deep, housing up to 20,000 → [D_4_01](D_4_01_Underground_Cities_an

tunnels erdstall underground subterranean Derinkuyu Kaymakli

Y_2_14 Credible Altered States

Y_2_14 — Dying Process Phenomenology: Shared Death Experiences and After-Death Communication

The phenomenology of death and the experiences reported by those who witness the dying process include several distinct categories of altered-state phenomena that extend beyond the well-known near-death experience (NDE).

shared death experience after-death communication deathbed visions grief hallucinations terminal lucidity Moody

Y_2_07 Verified Altered States

Y_2_07 — Temporal Lobe Epilepsy and Religious Experience

Temporal lobe epilepsy (TLE) — seizures originating in the temporal lobes, which contain structures critical for memory (hippocampus), emotion (amygdala), and sensory-experiential processing — produces some of the most d

temporal lobe epilepsy TLE Geschwind syndrome ecstatic seizure Dostoevsky religious experience

Y_3_04 Verified Altered States

Y_3_04 — Mystical Experience — Neuroscience of the Numinous

Mystical experiences — characterized by unity consciousness, noetic quality, ineffability, transcendence of time and space, and deep positive affect — have been reported across every known culture and religious tradition

mystical experience numinous William James Rudolf Otto peak experience neurotheology

Y_3_09 Credible Altered States

Y_3_09 — Prayer, Contemplation, and the Neuroscience of Religious Experience

The neuroscientific study of prayer and religious experience — sometimes termed neurotheology (d'Aquili & Newberg, 1999) — has moved from philosophical speculation to empirical investigation using neuroimaging, EEG, and

neurotheology prayer neuroscience Andrew Newberg SPECT prayer religious experience mystical experience

Y_3_03 Verified Altered States

Y_3_03 — Flow States and Peak Performance — Psychology of Optimal Experience

Flow — the state of complete absorption in an activity where self-awareness dissolves and performance peaks — was systematically described by psychologist Mihaly Csikszentmihalyi beginning in 1975 and formalized in his l

flow state Csikszentmihalyi peak performance transient hypofrontality optimal experience mushin

ZE_2_03 Verified Ethics & Applied Philosophy

ZE_2_03 — Ritual, Symbol, and the Sacred — Theory of Religious Experience

Ritual, symbol, and the experience of the sacred are universal features of human culture — present in every known society from the Upper Paleolithic to the present. This document examines the major theoretical frameworks

ritual symbol sacred religion religious experience numinous

ZA_1_06 Verified Physics & Quantum

ZA_1_06 — Quantum Tunneling: Traversing the Classically Forbidden

Quantum tunneling is the phenomenon where particles traverse energy barriers that classical physics strictly forbids — a direct consequence of quantum mechanics' wave-like description of matter. First explained by George

quantum tunneling barrier penetration wave function probability amplitude alpha decay Gamow

I_5_02 Credible UAP Disclosure

I_5_02 — Alien Abduction Phenomenon — Mack, Hopkins, and the Experiencer Debate

The alien abduction phenomenon — in which individuals report being taken against their will by non-human entities, subjected to medical/reproductive procedures, and returned with partial or no memory — emerged as a major

alien abduction abduction experiencer close encounter John Mack Budd Hopkins

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