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.
507 results for "social brain hypothesis" — page 1 of 26
C_1_14 — Dumézil's Trifunctional Hypothesis: Indo-European Social Structure in Myth
Georges Dumézil (1898–1986) was a French comparative mythologist and philologist who proposed that the mythologies, religions, and social institutions of Indo-European-speaking peoples share a common tripartite ideologic
R_2_01 — Human Brain Evolution and the Cognitive Revolution
The human brain tripled in size over 3 million years — from ~400 cm³ (Australopithecus) to ~1,400 cm³ (modern Homo sapiens). This is the most dramatic encephalization in the history of life, and NO consensus exists on wh
T_4_07 — Social Identity Theory and Prejudice
Social Identity Theory (SIT) explains how individuals derive self-concept from group memberships and how this drives intergroup behavior — including prejudice, discrimination, and conflict. Developed by Henri Tajfel and
T_5_25 — Cognitive Evolution: The Development of Human Mental Capacities
Cognitive evolution — the study of how human mental capacities emerged and developed over evolutionary time — addresses one of the deepest questions in science: how did a lineage of African primates develop language, sym
Y_2_04 — Neuroscience of Death — Terminal Lucidity and Dying Brain
The neuroscience of death has emerged as a legitimate research frontier, revealing that dying is not a simple cessation but a complex neurobiological process with surprising features. Michael Nahm and Bruce Greyson's doc
R_2_07 — Stoned Ape Hypothesis — Psilocybin, Cognitive Evolution, and the McKenna Theory
The "Stoned Ape Hypothesis," proposed by ethnobotanist Terence McKenna in Food of the Gods (1992), posits that the consumption of psilocybin-containing mushrooms by early hominids (particularly Homo erectus and Homo erga
ZA_4_07 — Boltzmann Brains and Statistical Mechanics Paradoxes
The Boltzmann brain paradox reveals a deep tension between statistical mechanics and cosmology. Ludwig Boltzmann (1896) suggested that the low entropy of the observable universe might be a rare thermal fluctuation from e
I_1_07 — Extraterrestrial Hypothesis Alternatives
The Extraterrestrial Hypothesis (ETH) — that UAP represent physical craft operated by biological beings from other planets — has dominated popular understanding of the UFO phenomenon since the late 1940s. However, numero
ZC_1_02 — Cult Psychology — Manipulation, Totalism, and Recovery
Cult psychology examines how high-demand groups employ systematic influence techniques to recruit, retain, and control members. Key frameworks include Robert Jay Lifton's eight criteria of thought reform, Steven Hassan's
ZC_1_13 — Psychology of Prejudice and Discrimination
Prejudice — negative attitudes toward a group and its members — operates through cognitive (stereotypes), affective (prejudice), and behavioral (discrimination) components. Research reveals both overt and subtle forms of
T_2_22 — Psychopathy Neuroscience
Psychopathy is a personality disorder characterized by persistent antisocial behavior, impaired empathy and remorse, bold and disinhibited traits, and often superficial charm — affecting an estimated 1% of the general po
T_5_06 — Digital Psychology and Screen Time
Digital psychology examines how digital technologies — smartphones, social media, video games, internet use — affect cognition, emotion, social behavior, and mental health. The field has become intensely debated since th
U_1_07 — Music and Social Movements
Music and social movements have been inseparable throughout history — music serves as a vehicle for collective identity, emotional mobilization, coded communication, and cultural memory in struggles for justice, labor ri
X_4_20 — Autoimmune Disease Rise & Hygiene Hypothesis
The dramatic rise of autoimmune and allergic diseases in industrialized nations over the past half-century — while these conditions remain comparatively rare in developing countries — represents one of the most important
Z_5_18 — Gut-Brain Axis: The Microbiome-Nervous System Connection
The gut-brain axis — the bidirectional communication network between the gastrointestinal tract and the central nervous system — has emerged as one of the most transformative concepts in modern biology and medicine. The
K_4_13 — Mirror Neurons and Social Cognition
Mirror neurons are a class of neurons, first discovered in the early 1990s in the premotor cortex (area F5) of macaque monkeys by Giacomo Rizzolatti, Vittorio Gallese, and colleagues at the University of Parma, that fire
K_2_15 — Glial Cells and the Tripartite Synapse: The Brain's Other Half
Glial cells (neuroglia) — comprising astrocytes, oligodendrocytes, microglia, and NG2 glia in the central nervous system, plus Schwann cells and satellite cells in the peripheral nervous system — constitute approximately
K_2_17 — Brain-Computer Interfaces: Neural Engineering, Neuroprosthetics, and the Brain-Machine Frontier
Brain-computer interfaces (BCIs) are systems that establish a direct communication pathway between the brain's electrical activity and external devices, bypassing normal neuromuscular channels. The concept was formalized
K_2_21 — Transcranial Brain Stimulation: tDCS, TMS, and Deep Brain Stimulation
Transcranial brain stimulation encompasses a family of techniques that modulate neural activity by delivering energy — magnetic pulses, electrical current, or implanted electrodes — to specific brain regions. The three p
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
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