Figure 6.
Test cases in a realistic model of rat spinal cord stimulation (SCS), all using flush contact geometry with thin platinum electrode contacts. Gold standard used to compute errors in thresholds (mean ± SD) across nine axon location and diameter combinations. The black asterisks denote cases with zero error as compared to the gold standard. Source models: point current source (PCS), floating potential (FP). Materials: silicone (Sil), platinum (Pt), medium (muscle). WP: Insulated workplane separating contacts electrically within the electrode substrate. Superposition A: Inactive contact is floating as in the monopolar simulations. Superposition B: Inactive contact is grounded. All thresholds shown in (Supplementary Table 4).