Table II.
Optimized parameters of the point contact equivalent circuit model for the ‘on-cell’ neuron-patch electrode interfaces for (A) Cell 1 and (B) Cell 2b.
| A. |
| a j | C e | R ext | R int | R s | R sp | R e | |
|---|---|---|---|---|---|---|---|
| Sub | 0.62 | 6.00 | 4.25e-5 | 5.20e-3 | 1.56e-1 | 5.00e-3 | O |
| Sup | O | O | 2.40e-6 | 1.65 | 5.39e-1 | 6.18e-2 | O |
| B. |
| a j | C e | R ext | R int | R s | R sp | R e | |
|---|---|---|---|---|---|---|---|
| Sub | 0.89 | 4.71e-1 | 1.28e-4 | 1.20e-1 | 6.75e-2 | 1.85e-1 | 3.31e-2 |
| Sup | O | O | 3.86e-4 | 1.17 | 1.28e-1 | 5.18e-3 | O |
b
The symbol ‘O’ stands for the point contact equivalent circuit model parameters fixed at values obtained from sub-threshold optimization of the model parameters for the neuron-electrode interfaces. The fractional surface area of the attached membrane is reported as a percentage of the total membrane surface area; all resistances are in gigaohms (GΩ) and the capacitances are in picoFarads (pF) . ‘Sub’ and ‘Sup’ refer to sub- and supra-threshold stimulations respectively.