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Incremental CoM shifting using monopolar multi-cathode stimulation. Monopolar stimulation currents were uniformly split across an increasing number of radial electrodes for each DBSA (A). DBSAs with more radial electrodes enabled shifting within the same range but at improved resolution (B). Aspect ratio decreased initially for DBSAs with more than 4-radial electrodes and increased from ~0.5 to 1 as the proportion of active electrodes increased (C).
