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🧠 Neuroscience
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Systems Neuroscience
Visual System — retina → LGN → V1 → V2-V5
Auditory System
Motor System — M1, Premotor, BG, Cerebellum Coordination
Reward System — VTA / NAcc / DA / RL Neural Basis
Hippocampus and Memory Systems
Sleep / Wake System
Somatosensory System
Olfactory System
Vestibular System
Pain System
Gustatory System
Autonomic Nervous System
Interoception
Hypothalamus & Homeostasis
Circadian System
Spinal Cord Systems
Limbic System
Arousal & Neuromodulatory Systems
Cerebellar Learning System
Thalamocortical System
Table of Contents
1. Pain ≠ Nociception
2. Nociceptors + Fibers
3. Pathway
4. Gate Control (Melzack & Wall 1965)
5. Descending Modulation
6. PyTorch — Gate Control
7. Central Sensitization + Chronic Pain
8. Chronic Pain Types
9. Treatment
10. Common Pitfalls
10.1 Pain ∝ Tissue Damage
10.2 A Single "Pain Center"
10.3 Chronic Pain = Prolonged Acute Pain
10.4 Opioids First-Line for Chronic Pain
10.5 Placebo = "Fake"
11. Related Concepts
References