Research Paper
Spike-based neural codes carry 10x more information than rate codes in human motor cortex
PubMed4/17/2026·04/17/26🌐 USA
Summary
Analysis of Utah Array recordings from 4 BrainGate participants during attempted hand movement found that precise spike timing patterns (with 1ms resolution) encoded 10.3x more information about intended movement direction and force than firing rate alone. A spike-timing-aware decoder reduced cursor control error rates by 67% versus rate-based decoding.
Why it matters
Most clinical BCIs use firing rate decoding — the simplest but least information-rich neural code. This result showing 10x more information in spike timing patterns motivates a fundamental shift in BCI decoder design that could dramatically improve performance without adding more electrodes.
#BCI#Neural Interfaces#Neuroimaging#Neurostimulation
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