Test-Time Adaptation of Spiking Neural Networks for Intracortical Neural Decoding using Membrane Potential Alignment
Researchers have developed a new method called Membrane Potential Alignment (MPA) for adapting spiking neural networks (SNNs) used in brain-computer interfaces. This method addresses the issue of signal shifts that degrade decoder performance over time. MPA achieves adaptation by matching membrane potential distributions using KL divergence, with updates restricted to a small fraction of parameters via LoRA. In tests on a primate reaching task, MPA demonstrated performance comparable to existing methods like NoMAD, but with a simpler architecture and finer temporal resolution, suggesting a practical approach for long-term, recalibration-free brain-computer interfaces. AI
IMPACT This research offers a more efficient method for adapting neural decoders in brain-computer interfaces, potentially leading to more reliable and long-term use without frequent recalibration.