Table 1.
Cognitive task performance, perceptual scales, salivary cortisol, and heart rate in the experimental trial. Values are expressed as means ± SD (n = 7)
| Trial | Pre-task | First 5 min of AX-CPT | Last 5 min of AX-CPT | First 5 min of Stroop task | Last 5 min of Stroop task | Post-task | Exhaustion | |
|---|---|---|---|---|---|---|---|---|
| Reaction time (ms) | HYP | - | 0.456 ± 0.072 | 0.421 ± 0.090 | 0.607 ± 0.088 | 0.602 ± 0.078 | - | - |
| SKIN | - | 0.440 ± 0.098 | 0.450 ± 0.115 | 0.639 ± 0.133 | 0.709 ± 0.151 | - | - | |
| Lapses of attention | HYP | - | 3 ± 2 | 1 ± 1 | 1 ± 1 | 2 ± 2 | - | - |
| SKIN | - | 2 ± 1 | 1 ± 1 | 1 ± 2 | 3 ± 5 | - | - | |
| Accuracy (%) | HYP | - | 96 ± 5 | 97 ± 3 | 96 ± 5 | 97 ± 3 | - | - |
| SKIN | - | 98 ± 2 | 95 ± 5 | 98 ± 3 | 95 ± 9 | - | - | |
| Thermal sensation | HYP | 4.1 ± 1.5 | - | - | - | - | 6.0 ± 0.8 | 8.3 ± 0.8 |
| SKIN | 3.6 ± 0.8 | - | - | - | - | 6.7 ± 0.8 | 8.4 ± 0.5 | |
| Rating of perceive exertion | HYP | - | - | - | - | - | 10.0 ± 3.0 | 18.7 ± 1.6 |
| SKIN | - | - | - | - | - | 9.6 ± 3.0 | 19.2 ± 0.9 | |
| △Salivary cortisol concentration (%) | HYP | 100 ± 0 | - | - | - | - | 74.2 ± 49.6 | 148.2 ± 82.5 |
| SKIN | 100 ± 0 | - | - | - | - | 89.0 ± 61.3 | 122.0 ± 45.4 | |
| Heart rate (bpm) | HYP | 64 ± 5 | - | - | - | - | 98 ± 18* | 192 ± 8 |
| SKIN | 69 ± 11 | - | - | - | - | 76 ± 11 | 189 ± 14 |
*p < 0.05, HYP vs. SKIN