Interfacing the neural output of the spinal cord: robust and reliable longitudinal identification of motor neurons in humans

Non-invasive electromyographic techniques can detect action potentials from muscle units with high spatial dimensionality. These technologies allow the decoding of large samples of motor units by using high-density grids of electrodes that are placed on the skin overlying contracting muscles and therefore provide a non-invasive representation of the human spinal cord output.From a sample of >1200 decoded motor neurons, we show that motor neuron...