RESEARCH BASE

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

3,721 documents 34 sections 43,623 citations 34,854 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.

3,721 results for "i ching" — page 120 of 187

L_5_07 Verified Genetics & Origins

L_5_07 — Genetics of Speech and Language: Beyond FOXP2

Language is humanity's most distinctive cognitive ability — and identifying its genetic basis has been a central goal of human genetics and neuroscience since the discovery of the KE family and the FOXP2 gene. The KE fam

FOXP2 language genetics speech CNTNAP2 SRPX2 ATP2C2
L_5_14 Verified Genetics & Origins

L_5_14 — Amino Acid Racemization Dating Method

Amino acid racemization (AAR) — a geochronological dating technique based on the chemical conversion of L-amino acids (the biologically predominant enantiomer in living organisms) to D-amino acids (the mirror-image confi

amino acid racemization AAR dating method D/L ratio enantiomers isoleucine epimerization
L_5_11 Verified Genetics & Origins

L_5_11 — Genetics of Altitude Adaptation: Tibet, Andes, Ethiopia

High-altitude adaptation represents one of the most dramatic and best-studied examples of natural selection in contemporary human populations. More than 140 million people worldwide live at elevations above 2,500 meters,

altitude adaptation hypoxia EPAS1 EGLN1 HIF pathway hemoglobin
L_5_13 Credible Genetics & Origins

L_5_13 — The Microbiome-Brain Axis: Gut Bacteria, Mood & Consciousness

The microbiome-gut-brain axis — bidirectional communication between the trillions of gut microorganisms and the central nervous system — has emerged as one of the most significant frontiers in neuroscience and consciousn

microbiome-brain-axis gut-brain-axis psychobiome vagus-nerve microbial-metabolites serotonin-gut
Y_4_08 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_06 Altered States

Y_4_06 — Synesthesia and Cross-Modal Perception

Synesthesia — the involuntary, consistent experience of one sensory modality triggering perception in another (e.g., hearing colors, tasting shapes) — affects roughly 4% of the general population when broad subtype defin

synesthesia cross-modal perception chromesthesia grapheme-color sound-color mirror-touch
Y_4_02 Altered States

Y_4_02 — Savant Syndrome and Acquired Genius

Savant syndrome — extraordinary ability coexisting with significant cognitive disability — affects roughly 1 in 10 people with autism and ~1 in 2,000 people with other developmental disabilities or brain injuries. What m

savant syndrome acquired savant traumatic brain injury autistic savant Kim Peek Daniel Tammet
Y_4_17 Verified Altered States

Y_4_17 — Sleep Disorders & Parasomnias

Sleep disorders affect an estimated 50–70 million Americans and up to 45% of the global population, encompassing over 80 distinct conditions classified by the International Classification of Sleep Disorders (ICSD-3, 2014

sleep disorders parasomnias narcolepsy sleepwalking REM behavior disorder sleep terrors
Y_4_04 Altered States

Y_4_04 — Entoptic Phenomena and Phosphene Patterns

This document examines Entoptic Phenomena and Phosphene Patterns, a topic within the Consciousness research area. Key areas of investigation include Defining Entoptic Phenomena, Phosphenes: Light from Within, Heinrich Kl

entoptic phenomena phosphene form constants Heinrich Klüver mescaline Lewis-Williams
Y_4_01 Altered States

Y_4_01 — Lucid Dreaming Research

Lucid dreaming — being consciously aware that you are dreaming WHILE dreaming, and potentially controlling dream content — was scientifically verified in 1975-1981 through a breakthrough protocol: pre-arranged EYE SIGNAL

lucid dreaming dream consciousness REM sleep sleeping brain metacognition prefrontal cortex
Y_4_14 Verified Altered States

Y_4_14 — Virtual Reality, Immersive Technology, and Altered Perception

Virtual reality (VR) and immersive technologies create genuine altered states of perception — not merely visual illusions but deep modifications of body ownership, spatial awareness, self-identity, and emotional processi

virtual reality VR augmented reality AR embodiment rubber hand illusion
Y_4_15 Credible Altered States

Y_4_15 — Sensory Overload and Information Flooding: Excess as Altered State

Sensory overload — the state that arises when sensory input exceeds the brain's capacity for orderly processing — represents the mirror image of sensory deprivation as a pathway to altered consciousness. While deprivatio

sensory overload information overload Ganzfeld rave culture overwhelm information flooding
Y_4_12 Verified Altered States

Y_4_12 — Psychosomatic Phenomena and the Placebo Effect

Psychosomatic phenomena — bodily changes produced by mental states — and the placebo effect — measurable physiological improvements following inert treatment — demonstrate that consciousness and belief can directly affec

placebo effect nocebo effect psychosomatic mind-body expectation conditioning
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

hypnagogia hypnagogic hypnopompic sleep onset threshold consciousness tetris effect
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_18 Verified Altered States

Y_4_18 — Sleep Disorders and Parasomnias: Pathologies of Consciousness in Sleep

Sleep disorders affect an estimated 50–70 million Americans and ~1 billion people globally, causing significant morbidity, mortality, and economic burden. The field was transformed by the discovery of distinct sleep stag

sleep-disorders parasomnia insomnia narcolepsy sleep-apnea rem-behavior-disorder
Y_4_20 Credible Altered States

Y_4_20 — Drumming & Trance Neuroscience

Shamanic drumming — typically monotonous percussive rhythms at approximately 4–4.5 beats per second — has been used across virtually every indigenous culture as a primary technology for inducing trance states, and modern

drumming trance theta rhythm auditory driving EEG entrainment
Y_4_07 Altered States

Y_4_07 — Hypnosis — History, Neuroscience, and Therapeutic Application

Hypnosis has evolved from Franz Mesmer's "animal magnetism" theory (1770s) through James Braid's neurological reframing (1843) and James Esdaile's surgical applications in India to Milton Erickson's indirect hypnotherapy

hypnosis mesmerism Mesmer James Braid James Esdaile Milton Erickson
Y_4_13 Verified Altered States

Y_4_13 — Collective Effervescence and Group Altered States

Collective effervescence — Émile Durkheim's term (The Elementary Forms of Religious Life, 1912) for the heightened emotional energy generated when people gather and act together in coordinated ritual — describes a group

collective effervescence Durkheim group ritual emotional contagion synchrony entrainment
Y_4_10 Altered States

Y_4_10 — Glossolalia, Xenoglossy, and Altered Language States

Glossolalia — commonly known as "speaking in tongues" — is a cross-cultural phenomenon in which individuals produce fluent, seemingly language-like vocalizations that do not correspond to any known natural language. Prac

glossolalia speaking in tongues xenoglossy Pentecostal Pythia Delphi