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.

14 results for "deprivation"

T_3_19 Verified Psychology & Social

T_3_19 — Feral Children, Linguistic Deprivation, and Critical Period Evidence

Feral children — individuals who grew up with minimal or no human contact during their early years — provide the most compelling (and tragic) natural evidence for the critical period hypothesis in language acquisition. T

feral children linguistic deprivation critical period Genie Wiley Victor of Aveyron Kaspar Hauser

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

Y_5_18 Credible Altered States

Y_5_18 — Sensory Deprivation & Float Tanks

Sensory deprivation — the systematic reduction or elimination of external sensory input — has been studied scientifically since the 1950s, with two primary paradigms: chamber REST (Restricted Environmental Stimulation Te

sensory deprivation flotation REST isolation tank John Lilly Epsom salt theta waves

Y_5_13 Verified Altered States

Y_5_13 — Starvation and Dehydration: Cognitive Effects of Deprivation States

Starvation and dehydration — states of severe and prolonged nutritional and fluid deprivation — produce a characteristic and well-documented progression of cognitive, perceptual, and emotional alterations that constitute

starvation dehydration Minnesota starvation experiment cognitive impairment hallucination survival psychology

Y_5_12 Speculative Altered States

Y_5_12 — Dark Retreat: Extended Light Deprivation and Endogenous Visionary States

The dark retreat (yangti nagpo or mun mtshams in Tibetan) is an advanced contemplative practice — primarily within the Dzogchen (Great Perfection) tradition of Tibetan Buddhism and the closely related Bön tradition — in

dark retreat yangti Tibetan Buddhism melatonin DMT hypothesis light deprivation

Y_3_18 Credible Altered States

Y_3_18 — Sensory Deprivation and Float Tank Research

Sensory deprivation — the deliberate reduction of external sensory stimulation — and its modern therapeutic form, flotation-REST (Restricted Environmental Stimulation Technique), have been studied since the 1950s as a me

sensory-deprivation float-tank isolation-tank restricted-environmental-stimulation john-lilly flotation-rest

Y_4_09 Verified Altered States

Y_4_09 — Sensory Deprivation — Float Tanks, Dark Retreats, and Consciousness Isolation

Sensory deprivation research — the systematic reduction or elimination of sensory input to study consciousness — began with John C. Lilly's invention of the isolation/flotation tank in 1954 at the National Institute of M

sensory deprivation float tank isolation tank REST John Lilly Epsom salt

J_1_07 Verified Ancient Technology

J_1_07 — Sacred Caves as Ritual Technology

This document examines Sacred Caves as Ritual Technology, a topic within the Ancient Technology research area. Key areas of investigation include Deep Time — The Archaeological Record, Chauvet Cave — Sophisticated from t

sacred cave ritual technology consciousness alteration Chauvet Lascaux Altamira

T_4_14 Credible Psychology & Social

T_4_14 — Social Comparison Theory: Festinger, Upward/Downward Comparison, and Social Media

Social comparison theory, introduced by Leon Festinger (1954), proposes that humans have a fundamental drive to evaluate their abilities and opinions — and in the absence of objective, non-social standards, they do so by

social comparison Festinger upward comparison downward comparison self-evaluation envy

T_3_04 Verified Psychology & Social

T_3_04 — Sleep Psychology and Dreams

Sleep occupies approximately one-third of human life yet its functions remain among the most actively investigated questions in neuroscience and psychology.

sleep psychology dreams REM sleep NREM sleep dream interpretation Freud dream theory

T_3_07 Verified Psychology & Social

T_3_07 — Psychology of Play

Play — voluntary, intrinsically motivated, process-oriented activity distinguished by positive affect, flexibility, and "as-if" pretense — is a universal feature of mammalian development that serves critical functions in

play psychology play theory Piaget play Vygotsky play pretend play rough-and-tumble play

Y_4_08 Verified Altered States

Y_4_08 — Sleep Science — REM, NREM, and the Ancient Understanding of Sleep

Sleep science has undergone a revolution in the 21st century, fundamentally altering our understanding of why humans sleep. The landmark 2012 discovery of the glymphatic system by Maiken Nedergaard revealed that the brai

sleep REM NREM glymphatic system slow-wave sleep dreams

Y_4_03 Verified Altered States

Y_4_03 — Shamanic Practices / Altered States Synthesis

Shamanic practices represent humanity's oldest spiritual technology, attested across every inhabited continent from at least 30,000 BCE (Upper Paleolithic cave art) to the present day. Despite vast cultural distances — g

shamanism altered states Mircea Eliade ecstasy trance soul journey

R_4_13 Verified Biology & Evolution

R_4_13 — Evolution of Sleep: Why Organisms Rest

Sleep — a reversible state of reduced awareness, diminished responsiveness, and characteristic neural activity — is found across virtually all animals with a nervous system, from C. elegans (which exhibits a quiescent st

sleep evolution of sleep REM sleep NREM sleep slow-wave sleep sleep function

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