Table 2.
Mean amplitudes, latencies, ranges and prevalence of evoked response peaks recorded at Iz following C7 stimulation
| Condition | Peaks | ||||||
|---|---|---|---|---|---|---|---|
| P13 | N19 | P25 | N32 | P50 | N62 | ||
| Prone | Amplitude (µV) | 5.6 (7.2) | 7.0 (6.1) | 16.4 (16.9) | 13.5 (10.2) | 17.4 (11.2) | 6.5 (6.4) |
| Latency (ms) | 13.4 (0.7) | 17.2 (1.3) | 25.3 (2.2) | 29.8 (1.9) | 47.9 (7.4) | 60.3 (5.0) | |
| Range (µV) | [0–17] | [0–15.5] | [0–48.0] | [0–29.9] | [0–33.4] | [0–16.7] | |
| Prevalence (%) | 44 | 67 | 89 | 89 | 89 | 67 | |
| Sitting | Amplitude (µV) | 3.0 (2.9) | 3.9 (4.3) | 9.1 (13.3) | 6.8 (7.0) | 11.0 (4.2) | 4.0 (4.3) |
| Latency (ms) | 13.1 (1.7) | 19.1 (2.1) | 25.2 (1.4) | 31.6 (3.1) | 51.6 (5.9) | 65.4 (2.3) | |
| Range (µV) | [0–8.3] | [0–11.9] | [1.0–43.6] | [0–20.1] | [5.3–19.0] | [0–11.1] | |
| Prevalence (%) | 67 | 67 | 100 | 89 | 100 | 78 | |
| Standing (anterior lean) | Amplitude (µV) | 4.0 (4.9) | 4.4 (5.7) | 10.2 (9.6) | 7.1 (6.2) | 13.3 (6.5) | 4.7 (6.0) |
| Latency (ms) | 14.2 (1.2) | 19.7 (0.8) | 25.1 (2.0) | 31.1 (1.4) | 52.2 (5.1) | 64.0 (2.6) | |
| Range (µV) | [0–14.5] | [0–18.4] | [2.9–31.5] | [1.5–22.7] | [5.4–22.8] | [0–17.1] | |
| Prevalence (%) | 67 | 67 | 100 | 100 | 100 | 56 | |
| Standing (anterior lean, EC) | Amplitude (µV) | 4.2 (5.7) | 4.7 (5.5) | 9.9 (12.3) | 6.3 (6.1) | 14.3 (6.4) | 2.5 (5.6) |
| Latency (ms) | 13.5 (0.8) | 19.7 (1.8) | 26.0 (1.6) | 32.3 (2.1) | 53.1 (4.9) | 65.3 (2.0) | |
| Range (µV) | [0–17.2] | [0–15.8] | [0–41.1] | [1.3–20.3] | [7.9–26.4] | [0–16.5] | |
| Prevalence (%) | 67% | 67 | 89 | 100 | 100 | 22 | |
| Standing (posterior lean) | Amplitude (µV) | 2.4 (4.1) | 0.8 (1.5) | 5.2 (5.2) | 3.6 (3.9) | 9.5 (5.8) | 3.2 (4.7) |
| Latency (ms) | 14.4 (2.2) | 20.5 (0.1) | 26.8 (2.1) | 32.4 (1.5) | 50.1 (5.1) | 64.5 (0.8) | |
| Range (µV) | [0–12.1] | [0–3.8] | [0–16.3] | [0–10.3] | [0–16.9] | [0–12.0] | |
| Prevalence (%) | 44 | 22 | 78 | 67 | 89 | 44 | |
Mean (SD)
EC eyes closed