Motor Homunculus Overturned: Single-Neuron Data from Stanford Reshapes BCI Targeting

Motor homunculus research from Stanford, published in Nature on June 17, 2026, used single-neuron recordings from eight BCI patients to find that motor cortex neurons carry whole-body signals throughout the precentral gyrus — not just in a single body-part zone. The finding challenges electrode placement strategy behind every paralysis BCI in clinical use.