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🧠 Neuroscience

Cellular & Molecular Neuroscience

Systems Neuroscience

Cognitive Neuroscience

Computational Neuroscience

Brain-Computer Interface

Neurotech Frontiers

Neuro Disorders

Neuroanatomy

Cerebral Cortex — 6-Layer Structure and Functional Areas

Hippocampus Anatomy

Cerebellum — "Little Brain", Motor Control + Learning

Basal Ganglia — Action Selection and Reinforcement Learning

Brainstem — Life Center

Prefrontal Cortex

Cingulate Cortex

Hypothalamus Anatomy

Meninges & Ventricular System

Cerebral Vasculature

Spinal Cord Anatomy

White Matter Tracts

Table of Contents

1. Main Nuclei 2. Direct vs Indirect Pathway 3. Relation to Reinforcement Learning 3.1 RPE (Reward Prediction Error)3.2 Actor-Critic 4. Pathology 4.1 Parkinson's Disease 4.2 Huntington's Disease 4.3 Tourette Syndrome 4.4 OCD 5. Cognitive Roles 6. PyTorch — Actor-Critic Analog 7. History 8. Common Pitfalls 8.1 Direct/Indirect Oversimplified 8.2 DA Beyond RPE 8.3 BG Single Function 8.4 Parkinson Beyond SNc 8.5 Striatum Main Cells 9. Related Concepts References

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