Status: v1.1 — 1 of 2 Core v8.0 maps Date: 2026-05-25 (v1.1 — Core-Interface.md → backup, 3→2 maps, Ask-AI.md = dynamic interface) v1.0: 2026-05-10 This map: HARDWARE MAP — WHAT IS WHERE (physical architecture) Other map: Core-Software.md (HOW IT RUNS) Interface: Ask-AI.md (AI generates dynamic interface per user) Supersedes: Core-v7.8-Draft.md v0.2 §1.2 + §6.3 (split into 3 files) Principles:
- 4 zones A/B/C/D by PFC accessibility gradient
- Every claim verifiable via fMRI, lesion studies, tractography
- Physical map — does NOT describe mechanism (→ Core-Software.md)
- does NOT describe observer experience (→ Ask-AI.md: AI generates dynamic interface per user) Prerequisites: None — file is self-contained Read deeper: Neural-Architecture.md v1.0 (detail on each brain region) Confidence: 🟢 Research support | 🟡 Framework synthesis | 🔴 Hypothesis Language: English
- §0 — THREE MAPS + WHAT THIS FILE DESCRIBES
- §1 — HARDWARE MAP — PHYSICAL ARCHITECTURE
- §2 — PFC REACH GRADIENT
- §3 — TIMING HIERARCHY
- §4 — RECEPTOR SYSTEM OVERVIEW
- §5 — HARDWARE PROFILE — INDIVIDUAL SPECS
- §6 — HARDWARE SETS RANGE, CHUNKS CHOOSE POSITION
- §7 — CROSS-REFERENCES
The framework describes the body-brain system from 2 perspectives, each as a separate map:
| # | Map | Perspective | For | File |
|---|---|---|---|---|
| 1 | Hardware Map | WHAT is WHERE | Neuroscience researcher | This file |
| 2 | Software Map | HOW IT RUNS | Framework researcher | Core-Software.md |
Both maps describe the SAME system from different angles. Each can be read independently. Like a computer: circuit diagram (Hardware) / code architecture (Software). Framework interface: Ask-AI.md — AI reads the framework and adapts explanations to each person's level of understanding.
A PHYSICAL MAP: WHAT is WHERE, what connects to what, individual specs. For specialists who want to VERIFY the framework via fMRI, lesion studies, tractography.
This file does NOT describe:
- Mechanism (HOW things RUN) → Core-Software.md
- Observer experience (INTERACTION) → Ask-AI.md (AI generates dynamic interface per user)
🟡 PHYSICAL MAP — "WHAT IS WHERE, WHAT CONNECTS TO WHAT":
PFC at top — because conscious knowing is mediated by PFC.
Domain wraps outside — body exists WITHIN domain.
Gradient top-down: PFC reach DECREASES progressively.
┌─ DOMAIN (actual environment — exists objectively, domain does NOT lie) ────┐
│ │
│ ┌─ BODY (neural systems — physical architecture) ─────────────────────┐ │
│ │ │ │
│ │ ┌─ A: PFC ── orchestrator ──────────────────────────────────┐ │ │
│ │ │ dlPFC ── working memory (~4±1 slots), planning, control │ │ │
│ │ │ vlPFC ── response inhibition, rule maintenance │ │ │
│ │ │ OFC ── value computation, reward expectation │ │ │
│ │ │ vmPFC ── emotion regulation, amygdala bridge (uncinate) │ │ │
│ │ │ mPFC ── self-referential, social cognition, DMN hub │ │ │
│ │ │ ACC* ── conflict monitoring (*PFC/limbic overlap) │ │ │
│ │ │ Online from birth (PFC-From-Prenatal). ⏱ ~200-500ms (SLOWEST) │ │ │
│ │ └─────────────────────────┬────────────────────────────────────┘ │ │
│ │ Layer 2/3 connections — PFC reach: STRONG │ │
│ │ ┌─────────────────────────┴────────────────────────────────────┐ │ │
│ │ │ B: CORTICAL MODALITY ── PFC trainable ──────────────────── │ │ │
│ │ │ Visual (V1→IT, FFA) Auditory (A1) Language (Broca+W) │ │ │
│ │ │ ⭐ Language dissociable from PFC (Fedorenko 2024) │ │ │
│ │ │ Somatosensory (S1/S2) Motor (M1+premotor) │ │ │
│ │ │ Cerebellum (motor+cognitive+prediction) │ │ │
│ │ │ Insula (⭐ anterior = interoception integration, Craig 2002) │ │ │
│ │ │ Parietal (spatial, cross-modal) Temporal (objects, social) │ │ │
│ │ │ ⏱ ~150-200ms cortical processing │ │ │
│ │ └─────────────────────────┬────────────────────────────────────┘ │ │
│ │ thalamocortical + BG loops — PFC reach: VARIABLE │ │
│ │ ┌─────────────────────────┴────────────────────────────────────┐ │ │
│ │ │ C: SUBCORTICAL ── PFC reach limited ──────────────────── │ │ │
│ │ │ Amygdala ── threat/reward ── vmPFC direct (uncinate) │ │ │
│ │ │ Hippocampus ── encoding gateway ── sleep replay → cortex │ │ │
│ │ │ Thalamus + TRN ── sensory gateway ── PFC can gate │ │ │
│ │ │ Hypothalamus ── HPA axis, homeostasis ── PFC indirect │ │ │
│ │ │ Basal Ganglia ── habit loops (associative → sensorimotor) │ │ │
│ │ │ Brainstem: VTA (dopamine), LC (NE, α1→PFC offline), │ │ │
│ │ │ Raphe (serotonin), PAG (pain/defense), NTS (visceral) │ │ │
│ │ │ DMN cross-cuts: mPFC(A) + PCC + angular + MTG │ │ │
│ │ │ ⏱ ~12ms amygdala (subcortical shortcut) │ │ │
│ │ └─────────────────────────┬────────────────────────────────────┘ │ │
│ │ vagus (80% afferent), spinal paths — PFC reach: WEAK │ │
│ │ ┌─────────────────────────┴────────────────────────────────────┐ │ │
│ │ │ D: PERIPHERAL ── outside brain, PFC reach ≈ 0 ──────────── │ │ │
│ │ │ ENS "second brain" (~100-500M neurons, 95% serotonin) │ │ │
│ │ │ Spinal cord (reflex, pain: A-delta + C-fiber) │ │ │
│ │ │ ANS (sympathetic / parasympathetic) │ │ │
│ │ │ Breathing = UNIQUE voluntary-involuntary bridge │ │ │
│ │ │ Cardiac plexus (~40K neurons) │ │ │
│ │ │ ⏱ ~50ms spinal reflex (FASTEST — before brain) │ │ │
│ │ └──────────────────────────────────────────────────────────────┘ │ │
│ │ │ │
│ └──────────────────────────────────────────────────────────────────────┘ │
│ │
└──────────────────────────────────────────────────────────────────────────────┘
🟢 PFC REACH — GRADIENT, NOT BINARY:
PFC "reach" = degree to which PFC can influence activity in a given zone.
Determined by physical connectivity: axon pathways + synaptic relays.
A → B: STRONG
→ Layer 2/3 direct connections (top-down bias)
→ PFC holds chunk → cortical area activates + runs
→ TRN (thalamic reticular nucleus) = attention gate PFC can control
→ Example: PFC holds "write text" → motor cortex executes
→ 🟢 Miller & Cohen 2001 — top-down control mechanism
A → C: VARIABLE
→ vmPFC → amygdala DIRECT via uncinate fasciculus — emotion regulation
→ PFC → Basal Ganglia (indirect cortico-striatal loops) — habit influence
→ PFC → PAG/NTS (limited, multi-relay) — pain modulation, autonomic
→ BUT: PFC does NOT have direct access to hippocampal encoding process
→ BUT: PFC does NOT directly control VTA dopamine firing
→ 🟢 Ghashghaei et al. 2007 — prefrontal-amygdala connectivity
A → D: WEAK
→ Minimum 2 synaptic relays (PFC → brainstem → peripheral)
→ PFC reach is nearly zero: ENS (gut), cardiac plexus, spinal reflex
→ UNIQUE EXCEPTION: Breathing
→ Voluntary: hold breath, deep breath (motor cortex → diaphragm)
→ Involuntary: brainstem controls (sleep, reflex, CO2 response)
→ = ONLY zone D system PFC can directly influence
→ 🟢 Del Negro et al. 2018 — respiratory rhythm generation
⭐ IMPLICATIONS:
→ PFC = orchestrator → but the orchestra is ONLY strong in zones A+B
→ Zone C: PFC influence via INDIRECT pathways only
→ Zone D: PFC is nearly powerless (except breathing)
→ "Willpower" = PFC holds → biases zone B → hopes for cascade to C, D
→ = Why "control yourself" is fundamentally limited — PFC physical reach is limited
→ Mechanism detail: Core-Software.md §6.1-§6.2
🟢 TIMING — PFC ALWAYS KNOWS LAST:
┌──────┬──────────┬───────────────────────────────────────────────────┐
│ Zone │ Timing │ What happens │
├──────┼──────────┼───────────────────────────────────────────────────┤
│ D │ ~50ms │ Spinal reflex (FASTEST — before brain) │
│ C │ ~12ms │ Amygdala subcortical shortcut (thalamus→amygdala) │
│ B │ ~150ms │ Cortical processing (visual, auditory, motor) │
│ A │ ~200ms+ │ PFC deliberate (SLOWEST — knowing arrives LAST) │
└──────┴──────────┴───────────────────────────────────────────────────┘
EVOLUTIONARY LOGIC:
→ D fastest: hand pulls back BEFORE the brain registers "hot" (survival reflex)
→ C fast: amygdala fires BEFORE PFC is aware (threat detection)
→ B medium: cortical integration → recognize object/pattern
→ A slowest: PFC evaluate + plan → only AFTER the body has already processed
IMPLICATIONS:
→ Body processes FIRST → PFC ALWAYS knows LAST
→ The feeling "I decided" is actually PFC receiving a decision ALREADY FORMED
→ 🟢 Libet 1983: readiness potential 300ms BEFORE conscious will
→ = Timing hierarchy supports "PFC = orchestrator, not controller"
CROSS-REFERENCE:
→ NE α1 FREEZE (Cortisol-Baseline.md §9.1):
Threat → NE flood → PFC OFFLINE (ms) — design feature, NOT malfunction
Shuts off PFC (slow) → yields to subcortical (fast) for survival
→ Mechanism detail: Core-Software.md §4.3
🟢🟡 17 RECEPTOR CATEGORIES — BODY-DOMAIN INTERFACE:
Receptors = gateways for the body to receive input from domain.
3 standard neuroscience taxonomy categories:
EXTEROCEPTION — sensing the external world (5):
① Vision — retina, V1→IT pathway, FFA (faces)
② Audition — cochlea, A1, voice processing
③ Olfaction — ~400 receptor types, DIRECT limbic (bypasses thalamus)
④ Gustation — 5+1 basic tastes, chemoreceptors tongue/palate
⑤ Tactile — mechanoreceptors + CT affective touch fibers
PROPRIOCEPTION — sensing body position (3):
⑥ Proprioception — muscle spindles + joint receptors
⑦ Vestibular — inner ear semicircular canals + otoliths
⑧ Kinesthetic — muscle dynamics, exertion, fatigue sensing
INTEROCEPTION — sensing internal state (9):
⑨ Thermoreception — hypothalamic, ~37°C set point
⑩ Nociception — A-delta (fast sharp) + C-fiber (slow dull)
⑪ Respiratory — CO2 chemoreception, vagal afferents
⑫ Cardiovascular — baroreceptors, HR, HRV, vagal tone
⑬ Visceral — ENS (~100-500M neurons), gut-brain axis
⑭ Metabolic — glucose, hydration, ghrelin/leptin
⑮ Hormonal-sensed — cortisol, testosterone, oxytocin (downstream effects)
⑯ Sleep/Circadian — SCN master clock, melatonin, REM/NREM
⑰ Self-signal interoception (META, KEYSTONE) ⭐
⭐ SELF-SIGNAL INTEROCEPTION = KEYSTONE:
→ Body's capacity to READ its own internal state
→ Hub: anterior insula (zone B, Craig 2002, 2009) + ACC
→ WITHOUT this: other inputs fire but body "cannot hear itself"
→ Explains alexithymia (~10% population, 🟢 Bird & Cook 2013)
→ Developmental foundation: caregiver mirroring → child learns self-reading
HARDWARE PATHWAYS:
→ Exteroception: receptor → thalamus (zone C) → cortical area (zone B)
→ Exception: olfaction → DIRECT limbic (zone C, bypasses thalamus)
→ Interoception: vagus (80% afferent) + spinal → insula (zone B)
→ Nociception: dual pathway (A-delta fast via zone C, C-fiber slow)
DETAIL: Body-Input-Enumeration.md (8-field schema per input)
MECHANISM (delta rule, baseline adaptation): Core-Software.md §3
🟢🟡 INDIVIDUAL HARDWARE SPECS — SLOW TO CHANGE:
Each person has a different hardware profile.
Hardware = RANGE. Chunks choose POSITION within the range (§6).
Changes very slowly (genetic + epigenetic + structural development).
── PFC PARAMETERS ──
WM CAPACITY: ~4±1 slots (🟢 Cowan 2001)
→ Beginner: slot = small chunk → little info
→ Expert: slot = meta-chunk → enormous info
→ = "Same 4 slots, different SIZE per slot"
PFC-CLEAR-SPEED: COMT gene
→ Val/Val: clears dopamine fast → WM refreshes fast → good for switching
→ Met/Met: clears slowly → WM holds longer → good for sustained attention
→ 🟢 Egan et al. 2001 — COMT-WM relationship
PFC-ATTENTION: DRD4 gene
→ 7R: longer receptor → higher novelty-seeking tendency
→ 4R: shorter receptor → higher attention stability
→ 🟢 Swanson et al. 2007
PFC ONLINE FROM BIRTH (🟢 PFC-From-Prenatal):
→ 5 empirical pillars:
Huttenlocher 1979: synaptic density at birth
Doria 2010: functional networks at term
Kouider 2013: frontal signatures at 5 months
Grossmann 2009: fNIRS early PFC activity
Hodel 2018: rapid plasticity
→ OLD claim: "PFC offline until age X"
→ CORRECTED: "PFC hardware online from birth, development = CHUNKS MISSING"
PFC CONNECTIVITY LIMITS:
→ PFC connections primarily to cortical areas (zone B)
→ LIMITED direct connections to brainstem, ENS, amygdala
→ PFC CAN: fire patterns in zone B via top-down bias
→ PFC CANNOT: force fire in zone D (ENS) or directly in zone C (VTA)
→ PFC orchestration scope = f(physical connectivity)
→ 🟢 Measurable via fMRI, tractography — large individual variation
PFC-INFERENCE LADDER (Chunk.md §8.4):
L0: Reflex (no PFC involvement)
L1: Orienting (PFC receives alert from body)
L2: Pattern-match (PFC recognizes compiled pattern)
L3: Deliberate comparison (Type 4 PFC chain)
L4: Coordinated execution (multi-step PFC plan)
→ EVENT property, not AGE property
── BODY-WIDE PARAMETERS ──
MOOD-STABILITY: MAO-A gene
→ Whole brain, not PFC-specific
→ Affects monoamine metabolism (serotonin, dopamine, NE)
→ 🟢 Caspi et al. 2002 — interaction with early adversity
RECEPTOR VARIANTS:
→ OXTR: oxytocin receptor sensitivity (social bonding range)
→ TAS2R: bitter taste receptor (taste sensitivity range)
→ CT-fiber density: affective touch sensitivity
→ = Individual variation → different body-input sensitivity profiles
MODALITY BALANCE:
→ Visual / auditory / somatic / motor / emotional processing mix
→ Property of the WHOLE brain, not PFC or subcortical alone
→ Influences: how chunks compile (multi-modal richness)
and how PFC receives signals (which modality is dominant)
→ 🟡 Mainstream has not clearly defined the PFC vs subcortical
boundary for modality
→ Framework position: modality = brain-wide hardware property
DETAIL ON PFC FUNCTIONS: PFC-Function.md v1.1 (24 functions, sub-region mapping)
DETAIL ON PFC MODES: PFC-Configuration.md v1.0 (6 dynamic configuration modes)
🟡 KEY PRINCIPLE — HARDWARE ≠ DESTINY:
Hardware = RANGE of possible positions.
Chunks (accumulated through experience) = ACTUAL POSITION within that range.
EXAMPLE:
WM capacity ~4±1 → beginner: 4 small items | expert: 4 meta-chunks
COMT Val/Val → fast clear → but only useful when chunks for task-switching are compiled
DRD4 7R → novelty-seeking tendency → but which direction depends on environmental exposure
= NOT "PFC is strong/weak"
= BUT "how many chunks are compiled for that situation"
Different hardware → different optimal environments → different compiled chunks.
SAME hardware + DIFFERENT environment → entirely DIFFERENT outcomes.
DIFFERENT hardware + SAME environment → DIFFERENT adaptation strategies.
FRAMEWORK POSITION:
→ Individual variation = hardware × environment × time
→ Talent = early compile advantage (environment happens to match hardware)
→ Not fixed destiny — chunks continue to compile throughout life
→ Critical periods: some hardware windows close
(phoneme discrimination ~7-10yr, attachment style ~1-3yr)
MECHANISM DETAIL: Core-Software.md §4.1 (compile rate, 3 Compile Types)
Core-Software.md — HOW IT RUNS: cycle mechanism, chunk dynamics, body-feedback
Ask-AI.md v3.1 — INTERFACE: AI generates dynamic interface per user (protocol + navigation)
Core-Software.md §1.3: mapping table (Software function → Hardware location)
= "Body-Input at Receptors→D+C+B, PFC receives at A, Cortisol amplifier at C→cross-cutting"
Neural-Architecture.md v1.0 — detail on each brain region, 4 zones A/B/C/D expanded
Body-Input-Enumeration.md — 17 body-inputs, 8-field schema per input
Cortisol-Baseline.md v2.0 — HPA axis (zone C), NE mechanism, 7 modes
PFC-Function.md v1.1 — 24 PFC functions, sub-region mapping
PFC-Configuration.md v1.0 — 6 dynamic modes, survival matrix
Core-v7.8-Draft.md v0.2 §1.2 → replaced by this file §1 (Hardware Map diagram)
Core-v7.8-Draft.md v0.2 §6.3 → replaced by this file §5 (Hardware Profile)
Backup: _backup/Core-v7.8-Draft-pre-3maps.md
Core-Hardware v1.1 — 1 of 2 Core v7.8 maps.
Physical map: WHAT is WHERE, what connects to what, individual specs. The shortest of the 2 files — intentionally brief. Specialists can verify each brain region via fMRI, lesion studies, tractography.
Want to know HOW IT RUNS → Core-Software.md. Want to INTERACT with the framework → Ask-AI.md (AI generates dynamic interface per user).
Core-Hardware — "4 zones A/B/C/D. PFC reach gradient: A→B strong, A→C variable, A→D weak. Timing: D fastest (50ms) → A slowest (200ms+). 17 receptor categories. Hardware sets RANGE, chunks choose POSITION. Hardware ≠ destiny. PFC hardware online from birth — development = chunks missing."