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Thresholds for all electrodes for all subjects in two of the modes under consideration. Monopolar (MP, blue circles) and Phased-Array (PA, red triangles) thresholds are shown as a function of electrode number at 250 pps, 100 μs/phase with each subject in a panel. The points indicate average thresholds over time per electrode. Notice that the PA thresholds ranged from as low as MP thresholds to many dB higher.
