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. Author manuscript; available in PMC: 2014 Oct 1.
Published in final edited form as: J Neural Eng. 2013 Sep 24;10(5):056023. doi: 10.1088/1741-2560/10/5/056023

Table 3.

Quantifying the impact of these various parameters on the spatial spread of activation and the volume of tissue activated (V - voltage, pw - pulse-width, Z - impedance, [c0, c1, c2, c3] - contact configurations, a - horizontal spread of activation, c - vertical spread of activation).

Stimulation configuration
spread (mm)
volume (mm3)
V (V) Pw (μs) Z (Ω) φ(μm) [C0, C1, C2, C3] a c
−1 90 1000 5.7 [−1000] 1.97 1.81 29
−3 90 1000 5.7 [−1000] 3.32 3.21 148
−5 90 1000 5.7 [−1000] 4.27 4.18 318

−3 60 1000 5.7 [−1000] 2.86 2.72 93
−3 120 1000 5.7 [−1000] 3.63 3.53 195
−3 450 1000 5.7 [−1000] 4.73 4.61 432

−3 90 500 5.7 [−1000] 3.83 4.67 287
−3 90 1000 5.7 [−1000] 3.32 3.21 148
−3 90 1500 5.7 [−1000] 2.83 2.51 84

−3 90 1000 2.0 [−1000] 1.32 1.17 9
−3 90 1000 5.7 [−1000] 3.32 3.21 148
−3 90 1000 10.0 [−1000] 4.9 4.80 482

−3 90 1000 5.7 [−1 −1 0 0] 3.69 3.95 225
−3 90 1000 5.7 [−1 0 0−1] 3.32 2.81 130
3.44 2.81 139

−3 90 1000 5.7 [−1 1 0 0] 1.93 1.50 23
1.63 1.20 13
−3 90 1000 5.7 [−1001] 2.29 2.02 45
1.82 1.50 21
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