Table 3.
Mean and standard deviations of CHEP parameters.
| Readout | 150 °C/s | 200 °C/s | 250 °C/s | 300 °C/s | |
|---|---|---|---|---|---|
| Hand stimulation | Pain rating [NRS] | 1.6 ± 0.9 | 1.6 ± 0.8 | 1.5 ± 0.8 | 1.5 ± 0.8 |
| N2 latency [ms] | 378 ± 46 | 365 ± 34* | 337 ± 28*** | 337 ± 37*** | |
| P2 latency [ms] | 527 ± 74 | 491 ± 53* | 480 ± 53** | 497 ± 70 | |
| N2 amplitude [µV] | − 8.8 ± 6.9 | − 8.8 ± 6.9 | − 8.0 ± 6.5 | − 9.7 ± 6.6 | |
| P2 amplitude [µV] | 9.8 ± 6.9 | 9.6 ± 6.5 | 9.5 ± 5.8 | 9.0 ± 6.6 | |
| N2P2 amplitude [µV] | 18.6 ± 12.6 | 18.4 ± 12.5 | 17.5 ± 11.6 | 18.6 ± 12.3 | |
| SNR [dB] | 6.4 ± 4.8 | 6.5 ± 4.7 | 6.3 ± 4.1 | 6.6 ± 4.7 | |
| Foot stimulation | Pain rating [NRS] | 1.4 ± 1.0 | 1.5 ± 1.0 | 1.4 ± 0.9 | 1.4 ± 1.0 |
| N2 latency [ms] | 424 ± 47 | 423 ± 44 | 412 ± 45* | 402 ± 54** | |
| P2 latency [ms] | 597 ± 61 | 581 ± 70 | 551 ± 74*** | 545 ± 60*** | |
| N2 amplitude [µV] | − 6.9 ± 6.4 | − 8.7 ± 5.7** | − 8.5 ± 6.6* | − 8.5 ± 6.6 | |
| P2 amplitude [µV] | 7.7 ± 6.8 | 9.4 ± 7.0 | 8.5 ± 7.9 | 9.3 ± 5.2 | |
| N2P2 amplitude [µV] | 14.7 ± 13.0 | 18.1 ± 11.5 | 17.0 ± 13.4 | 17.8 ± 10.8 | |
| SNR [dB] | 4.9 ± 4.6 | 6.2 ± 4.7 | 7.2 ± 5.5* | 5.7 ± 4.8 |
Data is presented in mean ± standard deviation. Significance is shown in comparison to 150 °C/s. *p < 0.05, **p < 0.01, ***p < 0.001.
NRS: numeric rating scale, SNR: signal-to-noise ratio.