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Consciousness Index Data Format

Φ

IIT Metrics

0.70
0.80

GNW Metrics

0.60
0.50
0.70
{ "consciousness_index": { "subject_id": "demo-001", "timestamp": "2025-01-15T10:30:00Z", "iit_metrics": { "phi_estimate": { "value": 2.5, "unit": "bits" }, "cause_effect_power": 0.7, "irreducibility": 0.8 }, "gnw_metrics": { "global_ignition": 0.6, "prefrontal_activation": 0.5, "broadcast_strength": 0.7 }, "practical_measures": { "pci": { "value": 0.45, "max": 1.0 } }, "state": { "condition": "awake", "arousal_level": 0.8, "awareness_level": 0.9 } } }

PCI Calculator & Complexity Analysis

0.45
PCI Value
0.68
Lempel-Ziv
0.72
Entropy
MCS
State

PCI Consciousness Meter

0.0 (VS/UWS) PCI* = 0.31 1.0 (Full Consciousness)

Simulate EEG Response

80%
0.50
0.10

Complexity Analysis

Lempel-Ziv: Measures algorithmic complexity of EEG signal

Entropy: Shannon entropy of binarized response

PCI: Normalized compression complexity after TMS

Consciousness State Classification

VS/UWS: PCI < 0.31 MCS: 0.31 ≤ PCI < 0.50 EMCS/LIS: PCI ≥ 0.50

TMS-EEG Measurement Protocol

Protocol Steps

  1. Preparation: Place 60-channel EEG cap on subject
  2. TMS Setup: Position TMS coil over premotor cortex
  3. Baseline: Record 5 min baseline EEG
  4. Stimulation: Deliver 200 TMS pulses (0.5-1 Hz)
  5. Recording: Record EEG response (500ms post-pulse)
  6. Analysis: Compute PCI from averaged response

TMS Pulse Simulation

μV ms TMS

Target Brain Regions

🧠

Premotor Cortex

Primary stimulation site

🔄

Parietal Cortex

Alternative target

📡

Occipital Cortex

Visual processing

IIT vs GNW Theory Comparison

Integrated Information Theory (IIT 4.0)

Consciousness = Integrated Information (Φ)

  • Intrinsicality (exists for itself)
  • Information (specific experience)
  • Integration (unified whole)
  • Exclusion (definite borders)
  • Composition (structured)
Prediction: Posterior cortex is seat of consciousness

Global Neuronal Workspace (GNW)

Consciousness = Global Information Broadcast

  • Ignition (all-or-none)
  • Global broadcast
  • Prefrontal involvement
  • Late (>300ms) activity
  • Report accessibility
Prediction: Prefrontal-parietal network essential

Nature 2025 Adversarial Study Results

256 participants, fMRI + MEG + iEEG multi-modal study comparing IIT and GNW predictions.

✓ Confirmed

  • Posterior cortex activity during conscious perception (IIT)
  • Late (P3b) activity correlates with awareness (GNW)

✗ Challenged

  • Lack of sustained synchronization in posterior cortex (IIT)
  • Limited prefrontal representation of content (GNW)

Consciousness Assessment Tests

Human Consciousness Test

Click "Run Test" to see results...

AI Consciousness Indicators

Based on Butlin et al. 14 indicators framework

  • HOT-4: Smooth representation spaces
  • GWT: Global information broadcast
  • AE-2: Body modeling / Environment interaction
  • PP: Predictive processing
  • IIT: Integrated information
  • AS: Attention schema
  • ToM: Theory of Mind
  • MC: Meta-cognition
Assessment: Insufficient evidence for consciousness claim

Custom PCI Measurement

Results will appear here...