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| Variable | young | middle-aged participants | older |
| Test stimuli block I (VAS ratings, mean±SD) | 61.2±12.9 | 58.4±15.5 | 54.9±8.7 |
| Conditioning stimulus (VAS ratings, mean±SD) | 70.1±18.0 | 75.4±21.9 | 72.8±21.4 |
| Stimulation temperature (°C, mean±SD) | 46.8±0.8 | 47.7±0.7 | 48.2±0.8 |
| Expectation (VAS ratings, mean±SD) | −8.3±18.3 | −12.6±15.0 | −3.9±19.6 |
| HADS_depression score (mean±SD) | 0.4±0.6 | 1.6±1.5 | 2.2±2.0 |
