Neuroconnectomics

Default Mode Network & Ego Dissolution Simulator

Ego Dissolution Axis

Waking Narrative Self (0%) → Complete Dissolution / Boundlessness (100%)
Depolarization of Layer V pyramidal neurons in PCC/mPFC
State Presets
REBUS Model Metrics
Prior Precision (Ego Constraint) 0.95
Top-down predictive constraints suppressing sensory anomalies
Ascending Prediction Error (Sensory Flow) 0.08
Unconstrained sensory-limbic transmission reaching cortical hubs
DMN (Self/Narrative) FPN (Executive) Salience (Insula/dACC) Sensory / Visual Limbic / Thalamus
Click any node to inspect coupling
Current: Baseline Modular State — Strict separation between Self (DMN) and Task-Positive Networks.
Intra-DMN Coherence
0.92
High internal synchrony
Global Brain Entropy
1.14 bit
Shannon signal diversity
DMN-Visual Functional Coupling
-0.48
Anti-correlated (Segregated)
Alpha Band (8-12Hz) Power
100%
Normal cortical gating

Node & Pathway Inspector

Posterior Cingulate (PCC / Precuneus) DMN Hub
Primary anchor of the autobiography, self-location, and narrative continuity.
5-HT₂A Density: Very High
Current Firing: Desynchronized
mPFC Correlation: 0.94
Global Reach: Constrained
Neurobiological Cascade
1. Rigid Waking State: In normal consciousness, the Posterior Cingulate Cortex (PCC) and medial Prefrontal Cortex (mPFC) maintain tightly synchronized low-entropy oscillations. The DMN acts as an orchestral conductor, suppressing unconstrained cross-modal dialogue.
Active Connectome Edges
Segregated intra-network links: 24
Cross-network integration bridges: 4
Modularity index Q: 0.78 (Rigid)

1. Intra-DMN Desynchronization

The Default Mode Network (mPFC, PCC, precuneus, inferior parietal lobule) constructs the sense of an individual self with a past and future. During ego death, 5-HT₂A agonist signaling on deep cortical layer V pyramidal cells destabilizes alpha rhythm pacemakers, causing the DMN to disintegrate into decoupled sub-units.

2. Global Hyper-Connectivity & Entropy

As modular boundaries dissolve, brain networks that never communicate under normal waking consciousness form transient, high-bandwidth functional connections. Visual cortices couple directly with auditory and limbic circuits, generating vivid synesthesia and unitive experience.

3. REBUS (Relaxed Beliefs Under Psychedelics)

Formulated by Carhart-Harris & Friston (2019), the REBUS model posits that the brain operates on hierarchical predictive coding. Ego death represents the collapse of high-level top-down "priors" (the ego construct), liberating raw bottom-up sensory streams to flood conscious awareness.

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