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.

75 results for "tonal perception" — page 3 of 4

ZG_3_01 Verified Linguistics & Communication

ZG_3_01 — Sapir-Whorf Hypothesis — Does Language Shape Thought?

The Sapir-Whorf hypothesis — more precisely, the principle of linguistic relativity — proposes that the structure of a language influences or determines the habitual thought patterns, perception, and worldview of its spe

Sapir-Whorf linguistic relativity linguistic determinism Whorf Sapir Boroditsky
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_08 Verified Social Science

ZC_1_08 — Psycholinguistics & Language-Thought Relationship

Psycholinguistics investigates the cognitive processes underlying language comprehension, production, and acquisition — and the relationship between language and thought has been one of the most debated questions in cogn

psycholinguistics Sapir-Whorf hypothesis linguistic relativity linguistic determinism Boroditsky Pirahã
ZC_1_11 Verified Social Science

ZC_1_11 — Psychology of Time

The psychology of time encompasses how humans perceive duration, orient themselves across past-present-future, and how temporal cognition influences decision-making, memory, motivation, and well-being.

time perception temporal cognition prospective timing retrospective timing internal clock pacemaker-accumulator
ZC_4_19 Credible Social Science

ZC_4_19 — Disaster Resilience Anthropology: Cultural Adaptation to Catastrophe

Disaster anthropology — the study of how human societies prepare for, experience, respond to, and recover from catastrophic events — emerged as a distinct subfield through the work of Anthony Oliver-Smith (University of

disaster anthropology resilience cultural adaptation vulnerability hazard risk perception
T_3_00 Psychology & Social

T_3_00 — Cognitive Perception: Subfolder Summary

T_5_02 Verified Psychology & Social

T_5_02 — Psychology of Music

Music psychology investigates how humans perceive, produce, respond emotionally to, and are transformed by music — drawing on cognitive psychology, auditory neuroscience, developmental psychology, and clinical applicatio

music psychology music cognition music emotion absolute pitch amusia auditory perception
T_5_05 Credible Psychology & Social

T_5_05 — Parapsychology and Anomalous Cognition

Parapsychology is the scientific study of claimed anomalous psychological phenomena — particularly extrasensory perception (ESP) (telepathy, clairvoyance, precognition) and psychokinesis (PK) (mental influence on physica

parapsychology ESP extrasensory perception telepathy precognition psychokinesis
D_5_19 Verified Sites & Artifacts

D_5_19 — Optical Illusions, Entasis, and Perceptual Engineering in Ancient Architecture

Ancient architects across multiple civilizations independently discovered and exploited principles of human visual perception — engineering deliberate optical corrections and illusions into their most important structure

optical illusion entasis Parthenon optical refinements Iktinos Kallikrates
ZD_2_14 Verified Information & Computation

ZD_2_14 — Autonomous Systems: Self-Driving Vehicles, Drones, and Safety-Critical AI

Autonomous systems are machines capable of performing complex tasks in unstructured, dynamic environments with limited or no human intervention — perceiving their environment through sensors, making decisions through com

autonomous systems self-driving autonomous vehicles drones robotics perception
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_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_07 Verified Altered States

Y_5_07 — Phenomenology of Pain and Pain Modulation

Pain — defined by the International Association for the Study of Pain (IASP, revised 2020) as "an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissu

pain nociception pain modulation gate control theory Melzack Wall
Y_5_01 Verified Altered States

Y_5_01 — Remote Viewing & Psychic Programs

The U.S. government spent $20M+ over 23 years (1972–1995) investigating psychic phenomena under classified programs known collectively as "Stargate." Research was published in Nature (1974) and IEEE (1976). The program p

remote viewing Stargate SRI CIA DIA Targ
Y_5_17 Speculative Altered States

Y_5_17 — Astral Projection Laboratory Research

Astral projection — the subjective experience of consciousness separating from the physical body and traveling independently — has been reported across virtually all human cultures throughout history, from ancient Egypti

astral projection out-of-body experience OBE Charles Tart Robert Monroe temporo-parietal junction
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_4_12 Credible Philosophy & Meaning

P_4_12 — Mesoamerican Philosophy

Mesoamerican philosophy refers to the systematic thought traditions of pre-Columbian civilizations — primarily the Nahua (Aztec/Mexica) and Maya — as reconstructed from colonial-era sources (Nahuatl-language texts collec

Mesoamerican philosophy Aztec philosophy Nahua philosophy teotl nepantla neltiliztli
P_5_13 Verified Philosophy & Meaning

P_5_13 — Leibniz: Monads, Theodicy, and Pre-Established Harmony

Gottfried Wilhelm Leibniz (1646–1716) was among the most versatile intellects in Western history — a mathematician, philosopher, logician, diplomat, jurist, historian, and engineer who co-invented the infinitesimal calcu

Leibniz monads monadology theodicy pre-established harmony best of all possible worlds
ZE_2_08 Verified Ethics & Applied Philosophy

ZE_2_08 — Philosophy of Time and Temporal Ethics

The philosophy of time and temporal ethics investigates how our understanding of time's nature shapes moral obligations. McTaggart's 1908 argument that time is unreal introduced the distinction between A-series (past/pre

philosophy of time temporal ethics McTaggart A-series B-series eternalism
R_2_06 Verified Biology & Evolution

R_2_06 — Isbell Snake Detection Hypothesis

This document examines Isbell Snake Detection Hypothesis, a topic within the Biology Evolution research area. Key areas of investigation include Origin and Author, The Core Thesis, The Expanded Pulvinar. The analysis spa

Lynne Isbell snake detection theory primate vision pulvinar nucleus trichromatic vision Quan Van Le