Table 2.
Average and standard deviation of intensity of perception, CEP amplitude and CEP latencies obtained in Experiment 2. The 6th column indicates the statistical results of the repeated measure ANOVA testing for differences between the different temperature steps (-5°C, -10°C, -15°C, -20°C). The last column indicates the statistical results of the paired t-test used to compare the effect of temperature slope (-10°C ; 200°C/s (3th column) vs. -10°C; 133°C/s (7th column).
| Surface area (mm2) | 120 | 120 | 120 | 120 | Effect of temperature step | 120 |
| Cooling ramp (°C/s) | 200 | 200 | 200 | 200 | 133 | |
| Temperature decrease (°C) | 5 | 10 | 15 | 20 | 10 | |
| Duration (ms) | 150 | 150 | 150 | 150 | 150 | |
| Intensity of perception | 22.8 ±13.8 | 27.9± 16.3 | 29.9 ± 15 | 31.8 ± 15.6 | p<.001 | 27.4 ± 16. |
| N1/P1 amplitude (uV) | -6.0 ±3.4 | -5.9± 3.4 | -6.1± 4.1 | -5.4± 3.9 | p=.628 | -5.5± 4.4 |
| N2 amplitude (uV) | -4.6 ±4.1 | -5.8± 5.1 | -5.4 ± 4.2 | 7.4± 6.0 | p=.024 | -6.6 ± 4.7 |
| P2 amplitude (uV) | 12.3 ±4.3 | 14.7± 6.6 | 14.2± 6.7 | 13.9± 8.0 | p=.069 | 13.0 ± 5.9 |
| N2-P2 amplitude (uV) | 16.9 ±6.2 | 20.4± 8.1 | 19.6 ± 8.8 | 21.3 ± 10.4 | p=.001 | 19.6 ± 8.7 |
| N1/P1 latency (ms) | 203 ± 19 | 197 ± 15 | 200 ± 19 | 194 ± 16 | p=.461 | 193 ± 22 |
| N2 latency (ms) | 267 ±28 | 278± 33 | 262 ± 30 | 263 ± 31 | p=.052 | 265± 35 |
| P2 latency (ms) | 405 ±56 | 402± 50 | 403 ± 59 | 406 ± 53 | p=.791 | 411± 49 |