Importance

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Abstract

A single-nerve-action-potential-measuring apparatus comprises a multi-channel electrode, a space-damping-vector-calculating section, and a single nerve action potential separating and extraction section. The multi-channel electrode, which consists of multiple bunched micro electrode wires, measures the compound nerve action potential. The space-damping-vector-calculating section evaluates the damping effect corresponding to the distance between the micro electrode wires and nerve cells with no effect from a decrease in the signal-to-noise ratio. The single nerve action potential separating and extracting section extracts only the nerve action potential generated from a particular neuron by clustering the space-damping-vectors. These features enable the apparatus to separate and extract a single-nerve action spike with high precision even under conditions when the signal-to-noise ratio is low or at a site where cells are densely packed.

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First Claim