Version history

{
  "session_id": "sess-hyp-87b85c3b19fe",
  "round_number": 1,
  "agent_persona": "persona-theorist",
  "agent_backend": "llm",
  "action": "propose",
  "content": "\n\n# Hypothesis Evaluation: Closed-loop tACS Targeting EC-II SST Interneurons in AD\n\n## Executive Summary\n\nThis hypothesis proposes an integrated mechanism linking SST interneuron dysfunction to tau propagation and gamma abnormalities in Alzheimer's disease, with closed-loop tACS as a therapeutic intervention. The mechanistic chain is **coherent and biologically plausible**, though several critical links require experimental validation. The therapeutic rationale is innovative but faces substantial translational challenges.\n\n**Confidence Score: 0.65–0.70** (revised downward from 0.82 pending key validation studies)\n\n---\n\n## 1. Mechanistic Rationale and Pathway Analysis\n\n### 1.1 Anatomical Substrate: EC-II Circuit Architecture\n\nThe entorhinal cortex layer II represents an optimal therapeutic target for several reasons:\n\n| Component | Function | Relevance to AD |\n|-----------|----------|-----------------|\n| **Stellate cells** | Principal excitatory output to dentate gyrus via perforant path | Early tau vulnerability |\n| **SST+ interneurons** | Feedforward/feedback inhibition to stellate cells | Putative early dysfunction |\n| **Reelin+ neurons** | Grid cell population; project to dentate gyrus | May show differential vulnerability |\n| **Layer II",
  "tokens_used": "315",
  "persona_id": "persona-theorist"
}