McMahon et al. and the Michel Lemay lab performed simultaneous spinal cord recordings with two NeuroNexus A8x8-5mm-200-200-177, 64-channel probes. They made multiple insertions with the same probe at different spinal segments, and recordings were made during stepping motion, electrical stimulation, as well as control at rest. Probe location marking with DiO was done after recordings were completed. Read more about their discoveries here.