EP parameters(mean (SD)) in time and frequency domain during the mechanical damaging model
| EPs type | Experiment stages | Amplitude | Latency | Peak time | Peak power | Peak frequency |
|---|---|---|---|---|---|---|
| CSEP | Before damage | 3.85 (1.79) | 13.9 (1.7) | 20 (7.6) | 17.1 (6.1) | 66.9 (15) |
| 30% damage | 1.70 (0.62) | 17.4 (4.7) | 21.15 (3.2) | 2.50 (1.6) | 78.4 (28) | |
| 50% damage | 1.4 (0.45) | 18.6 (3.2) | 21.6 (2.8) | 2.00 (1.63) | 75 (34) | |
| Total damage | 1.0 (0.38) | 18.5 (3.4) | 21.3 (3.1) | 0.66 (0.48) | 76.5 (48) | |
| SSEP | Before damage | 6.27 (3.07) | 3.3 (1.4) | 4.6 (1.8) | 18.65 (1.94) | 436 (237) |
| 30% damage | 2.74 (1.8) | 4.3 (2.1) | 6.2 (2.4) | 1.94 (1.5) | 520 (256) | |
| 50% damage | 1.04 (0.76) | 5.1 (2.7) | 7.8 (3.2) | 0.51 (0.5) | 406 (93) | |
| Total damage | 0.68 (0.74) | 5.5 (3.0) | 7.7 (2.9) | 0.43 (0.7) | 424 (104) | |
| CMEP | Before damage | 9.3 (5.1) | 2.9 (1.0) | 4.0 (1.0) | 38.8 (24.4) | 469 (212) |
| 30% damage | 2.9 (1.5) | 3.8 (1.3) | 4.4 (2.0) | 3.96 (0.3) | 451 (236) | |
| 50% damage | 0.73 (0.32) | 3.9 (0.9) | 5.1 (1.4) | 2.02 (1.9 | 408 (230) | |
| Total damage | 0.29 (0.2) | 4.1 (0.6) | 5.2 (1.4) | 0.11 (0.2 | 474 (288) | |
| SCEP | Before damage | 10.20 (4.2) | 1.9 (0.6) | 3.1 (1) | 35.73 (12.4) | 508 (163) |
| 30% damage | 4.13 (2.13) | 2.4 (1.0) | 4.2 (1.2) | 5.99 (2.7) | 579 (105) | |
| 50% damage | 2.7 (1.29) | 3.2 (1.6) | 4.9 (1.8) | 1.35 (1.06) | 570 (173) | |
| Total damage | 0.75 (0.6) | 3.4 (2.1) | 5.1 (2.1) | 0.21 (0.34) | 549 (107) |
CSEP=Cortical somatosensory evoked potential; SSEP=spinal somatosensory evoked potential; CMEP=cortical motor evoked potential; SCEP=spinal cord evoked potential.