# DARPA SUBNETS **Domain:** Closed-Loop Neurotechnology / Therapeutic Stimulation **Doc Type:** Research Program Node **Maturity:** Experimental and Translational **Primary Source:** [[articles/The Art is Long|The Art is Long: Vespucci of Immortality]] **Related:** [[wiki/Closed-Loop BCI|Closed-Loop BCI]], [[wiki/DARPA N3|DARPA N3]], [[wiki/Neural Decoding|Neural Decoding]], [[wiki/Human-in-the-Loop BCI|Human-in-the-Loop BCI]] --- ## Definition **SUBNETS** means **Systems-Based Neurotechnology for Emerging Therapies**. The DARPA program pursued systems that record neural activity, construct models of relevant state, and stimulate adaptively in closed loop. ## Architectural Significance SUBNETS places the model inside the therapeutic control loop rather than treating modeling as offline analysis after an experiment. It is therefore an important predecessor to later neural read–estimate–act architectures. ## Sources / Provenance - [Systems-Based Neurotechnology for Emerging Therapies](https://www.darpa.mil/research/programs/systems-based-neurotechnology-for-emerging-therapies), DARPA.