Table 2.
Schematic representation of the main findings of this study.
| EV50 | D JMCT | |
|---|---|---|
| (Figure 5) | (Figure 6) | |
| Interelectrode distance (Phase 1) | Max @ 2 cm | ↑ with distance |
| Stimulus amplitude (Phase 2) | ↑↑ with amplitude | ↑ with amplitude |
| Stimulus frequency (Phase 2) | ↑ with frequency | ↑ with frequency |
| Age (Phase 3) | No clear trend with age (less in the elderly) | No clear trend with age (but min in the elderly) |
Neuronal response was activated in the volume where J > 50% MCT (→ modulation threshold); ↑EV50→ ↑ spread of modulated tissue; ↑DJMCT→ ↑ depth of modulated tissue.