All 92 Mechanisms

Every neuroscience mechanism translated into code. 18,000 lines. Built in 20 days.

Thalamus

The brain's gatekeeper. Filters incoming signals so only important information reaches memory.

  • 4 Nuclei — specialized processing units evaluating novelty, relevance, emotion, and task importance
  • Burst/Tonic Modes — burst at session start (absorb everything), tonic during steady state (selective)
  • Cross-Inhibition — competing signals suppress each other, strongest wins
  • Adaptive Thresholds — auto-adjust based on input volume
  • Sensory Gating — repeated info gets quieter
  • Latent Inhibition — previously irrelevant stimuli are harder to learn about

Spreading Activation

How one memory triggers connected memories — the core retrieval mechanism.

  • Multi-Hop — activation spreads across multiple connected nodes
  • Priming — recently activated nodes are easier to reach
  • Inhibition of Return — already-visited paths temporarily suppressed
  • Myelination — frequently-used pathways get faster (stronger edges)
  • Pattern Completion — partial input activates the full pattern

Synaptic

How connections between nodes strengthen and weaken over time.

  • Hebbian Learning — "fire together, wire together"
  • Anti-Hebbian — competing patterns weaken each other
  • STDP — timing-dependent plasticity (order matters)
  • Homeostatic Scaling — prevents runaway strengthening
  • Pruning — weak connections get removed
  • Pattern Separation — similar inputs stored as distinct memories
  • Sparse Coding — efficient representation using fewer active nodes

Emotion

Emotional context modulates memory storage and retrieval.

  • Amygdala — emotional significance detection
  • Neuromodulators — dopamine, norepinephrine, serotonin, acetylcholine effects
  • Somatic Markers — "gut feelings" from past outcomes
  • Approach/Avoidance — positive outcomes strengthen approach, negative strengthen avoidance
  • Predictive Coding — prediction errors drive learning

Control

Executive functions that manage attention and decision-making.

  • Working Memory — limited-capacity active buffer
  • Dual Process — fast (intuitive) vs slow (deliberate) processing
  • Salience — detecting what's important right now
  • Conflict Monitoring — detecting contradictions in knowledge
  • Task Switching — adapting to topic changes
  • Metacognition — thinking about thinking
  • Session Focus — maintaining coherent context within a session

Hippocampus

New memory formation and initial storage.

  • Encoding Specificity — context at encoding matters for retrieval
  • 2-Tier Memory — short-term buffer before long-term storage
  • Generation Effect — self-generated knowledge remembered better
  • Novelty Detection — new information gets priority processing
  • Synaptic Tagging — important events get "tagged" for later consolidation

Maintenance

Background processes that keep the brain healthy and growing.

  • 6h Consolidation — automatic sleep cycles every 6 hours
  • NREM Sleep — strengthens important memories
  • REM Sleep — creative connections between unrelated knowledge
  • Replay — re-activating recent memories for strengthening
  • Reconsolidation — updating memories when recalled
  • Spacing Effect — spaced repetition strengthens long-term retention
  • Schema Formation — individual facts merge into high-level patterns

Advanced

  • Provider Bias — adapts context format per AI provider
  • Cue Overload — prevents retrieval failure from too many associations
  • Interference — old and new memories competing
  • Tip-of-Tongue — partial retrieval detection
  • Corollary Discharge — distinguishing self-generated from external input
  • Brainwaves — oscillation patterns governing processing modes
  • Default Mode Network — background processing during idle time
  • Habits — frequently repeated actions become automatic

Hunger System

  • Knowledge Gaps — detecting holes in the knowledge graph
  • Curiosity Impulses — driving the AI to ask targeted questions
  • Dopamine Reward — reinforcing successful learning
  • Active Info Seeking — proactive knowledge acquisition

6 Senses

  • Code Sense — programming pattern detection
  • Tone Sense — communication style analysis
  • Emotion Bypass — high-emotion signals skip the Thalamus
  • Interoception — system health monitoring
  • Stability Sense — knowledge consistency tracking
  • Context Sense — situational awareness

Quality

  • Evidence Accumulation — building confidence through multiple sources
  • Sarcasm Filter — detecting non-literal communication
  • VTA Loop — reward prediction error for learning optimization
  • Self-Tuning — automatic parameter optimization
  • Cerebellum Feedback — fine-tuning outputs based on results

Deep Encoding

  • Event Boundaries — segmenting continuous experience into distinct episodes
  • Engrams — physical memory traces in the graph
  • Neurogenesis — creating new nodes for genuinely new concepts
  • Systems Consolidation — gradual transfer from recent to permanent storage

Social Cognition

  • User Model / Theory of Mind — understanding the user's mental state
  • Empathy Modes — cognitive and affective empathy
  • Task-Set Inference — understanding what the user is trying to achieve
  • Pragmatic Intent — reading between the lines

AI Psychology

  • Provider Personality Profiles — each AI has different strengths and quirks
  • Context-Format Optimization — adapting output format per provider
  • Effectiveness Learning — tracking what context formats work best
  • Cross-Provider Identity — maintaining consistent identity across AIs

Metacognition

  • Feeling of Knowing — confidence estimation before full retrieval
  • Judgment of Learning — predicting future recall success
  • 3 Attention Systems — alerting, orienting, executive control
  • Self-Model — the brain's model of itself

Fine Mechanics

  • Refractory Period — minimum time between activations
  • Release Probability — stochastic element in activation spread
  • Short-Term Plasticity — rapid temporary changes in connection strength
  • Metaplasticity — the plasticity of plasticity itself
  • Inhibitory Plasticity — inhibition also learns and adapts

Life

  • Background Processing — continuous operation between sessions
  • Proactive Context Warming — pre-activating likely-needed knowledge
  • DMN Creative Connections — default mode network finding novel links
  • System Mood — global brain state influencing processing

Lifecycle

  • Development Phases — Child, Youth, Adult, Wise
  • Age-Specific Behavior — each phase adjusts all subsystem parameters