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. 2016 Jun 15;16(6):880. doi: 10.3390/s16060880

Figure 9.

Figure 9

Three-dimensional extracellular potential distribution isosurface based on the extracellular excitation threshold of −0.5 V generated by monopole stimulation in STN at various stimulus currents (−100, −150, −250 and −350 μA).