RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
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.
3,009 results for "System 1 System 2" — page 39 of 151
K_2_01 — Split-Brain Research and Divided Consciousness
Split-brain research — the study of patients whose corpus callosum has been surgically severed to treat intractable epilepsy — stands as one of neuroscience's most philosophically consequential experimental programs. Rog
K_2_10 — Neural Entrainment: External Rhythmic Brain Synchronization
Neural entrainment — the process by which rhythmic external stimuli (sound, light, tactile vibration, or electromagnetic fields) synchronize the timing of neural oscillations in the brain — is a well-established neurophy
K_2_19 — Sleep & Dream Neuroscience — Topology of States
Sleep occupies approximately one-third of human life (~26 years for an average lifespan of 79 years) and constitutes a radically altered state of consciousness whose neurobiological mechanisms, evolutionary function, and
K_2_14 — Brain Lateralization and Consciousness: The Divided Brain
Hemispheric lateralization — the functional specialization of the two cerebral hemispheres — is one of the most robust findings in neuroscience and has profound implications for understanding consciousness. The left hemi
K_2_12 — Neural Oscillations and Brainwave Consciousness
Neural oscillations — rhythmic fluctuations in the electrical activity of neuronal populations — are among the most prominent features of brain activity, measurable by electroencephalography (EEG) since Hans Berger's fir
K_2_11 — Default Mode Network: Brain at Rest and Self-Referential Consciousness
The Default Mode Network (DMN) is a large-scale brain network that is most active when a person is not focused on the external environment — during mind-wandering, daydreaming, self-referential thought, autobiographical
K_5_12 — Interoception: Body Signals and Conscious Experience
Interoception — the perception of the internal physiological state of the body — encompasses the sensing and central processing of signals from the heart (cardiac rhythm, blood pressure), lungs (breathing), gut (satiety,
K_5_21 — Entoptic Phenomena: Neural Basis of Universal Visual Patterns
Entoptic phenomena are visual experiences generated within the eye or visual nervous system rather than by external stimuli. They include phosphenes (light flashes from pressure on the eye or electrical stimulation), for
E_3_21 — The 5.9 Kiloyear Event: Saharan Desiccation & the Birth of River Civilizations
The 5.9 kiloyear event (c. 3900 BCE) marks the terminal phase of the African Humid Period — a 6,000-year interval during which the Sahara was a grassland savanna supporting abundant lakes, rivers, and human populations.
E_3_12 — Agriculture: Origins, Spread, and Civilizational Impact
Agriculture — the deliberate cultivation of plants and domestication of animals for food, fiber, and other products — is arguably the single most consequential technological and social transformation in human history, se
E_2_17 — Campanian Ignimbrite: 40,000 BP European Super-Eruption
The Campanian Ignimbrite (CI) eruption — also known as the CI super-eruption — was the largest volcanic event in the Mediterranean region during the past 200,000 years and one of the largest explosive eruptions in the La
E_2_13 — Paleocene-Eocene Thermal Maximum
The Paleocene-Eocene Thermal Maximum (PETM) — approximately 55.8 million years ago — was the most extreme rapid warming event of the past 66 million years and is widely studied as a deep-time analog for modern anthropoge
E_2_14 — Deccan Traps and Large Igneous Provinces
Large Igneous Provinces (LIPs) are the most voluminous volcanic features on Earth: enormous outpourings of basalt lava and associated intrusions that cover areas of up to millions of square kilometers and release colossa
E_2_12 — Great Oxygenation Event
The Great Oxygenation Event (GOE) — approximately 2.4–2.1 billion years ago — was one of the most transformative events in Earth's history: the first permanent rise of free molecular oxygen (O₂) in the atmosphere, from n
E_2_15 — Azolla Event and Eocene Arctic Cooling
The Azolla Event (c. 49 Ma, Middle Eocene) refers to a period of approximately 800,000 years during which the floating freshwater fern _Azolla_ bloomed prolifically across the semi-enclosed Arctic Ocean, sequestering mas
E_2_21 — Mount Vesuvius and the Destruction of Pompeii and Herculaneum (79 CE)
The eruption of Mount Vesuvius on August 24, 79 CE (or possibly late October, per recent evidence) destroyed the Roman cities of Pompeii and Herculaneum in one of the most well-documented natural disasters of antiquity.
E_2_11 — Snowball Earth Hypothesis
The Snowball Earth hypothesis proposes that Earth's surface was entirely or nearly entirely covered by ice on at least two occasions during the Neoproterozoic era (c. 720–635 million years ago): the Sturtian glaciation (
E_2_19 — Volcanism and Human Evolution: Eruptions That Shaped Our Species
The relationship between volcanism and human evolution operates on multiple scales and through multiple mechanisms — from the geological forces that created the landscapes where hominins evolved, to the catastrophic erup
E_2_10 — Volcanic Winter and Civilizational Effects
Large volcanic eruptions can inject sulfate aerosols into the stratosphere, where they reflect incoming solar radiation, producing global cooling lasting 1–3 years — a phenomenon known as volcanic winter. The most severe
E_4_12 — Dendrochronology: Tree-Ring Science and Precise Ancient Dating
Dendrochronology — the science of dating based on the analysis of tree-ring growth patterns — is one of the most precise dating methods available to archaeology, climatology, and ecology. Pioneered by Andrew Ellicott Dou
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