Table 2 Descriptive data of quantitative sensory testing (QST) thresholds before (pre) and during hypnosis according to individual hypnotic susceptibility
From: Hypnotic relaxation results in elevated thresholds of sensory detection but not of pain detection
LH pre hypnosis | LH during hypnosis | LMH pre hypnosis | LMH during hypnosis | HMH pre hypnosis | HMH during hypnosis | HH pre hypnosis | HH during hypnosis | |
|---|---|---|---|---|---|---|---|---|
Patients per group (n total = 22) | n = 3 | n = 3 | n = 8 | n = 8 | n = 4 | n = 4 | n = 7 | n = 7 |
Thermal thresholds | ||||||||
Cold detection threshold CDT (°C from baseline 32°C) | -1.3 ± 0.34 | -3.0 ± 1.38 | -0.98 ± 0.12 | -2.7 ± 0.61 | -2.3 ± 1.44 | -9.3 ± 2.44 | -1.95 ± 0.76 | -6.3 ± 2.16 |
Warm detection threshold WDT (°C from baseline 32°C) | 5.5 ± 3.65 | 3.6 ± 1.01 | 1.5 ± 0.37 | 2.5 ± 0.35 | 2.5 ± 1.47 | 4.3 ± 1.13 | 3.3 ± 0.98 | 6.3 ± 1.79 |
Thermal sensory limen TSL (°C) | 7.5 ± 4.18 | 6.8 ± 1.40 | 2.2 ± 0.45 | 4.4 ± 1.20 | 2.9 ± 1.59 | 9.5 ± 2.15 | 4.1 ± 1.07 | 10.1 ± 2.06 |
Paradox heat sensation PHS (x/3) | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 |
Cold pain threshold CPT (°C) | 12.7 ± 3.48 | 12.9 ± 3.41 | 18.3 ± 2.99 | 21.7 ± 2.58 | 18.2 ± 5.40 | 10.8 ± 5.02 | 19.2 ± 3.70 | 20.0 ± 3.95 |
Heat pain threshold HPT (°C) | 46.3 ± 1.78 | 42.3 ± 1.58 | 40.3 ± 0.90 | 39.2 ± 2.09 | 43.8 ± 1.00 | 41.3 ± 3.71 | 40.9 ± 1.69 | 43.2 ± 1.65 |
Mechanical thresholds | ||||||||
Mechanical detection threshold MDT (mN) | 1.9 ± 0.82 | 5.2 ± 2.58 | 2.2 ± 0.66 | 3.1 ± 0.88 | 3.4 ± 1.28 | 5.0 ± 1.40 | 1.0 ± 0.24 | 4.7 ± 2.35 |
Mechanical pain threshold MPT (mN) | 35.3 ± 10.08 | 73.6 ± 11.78 | 29.8 ± 14.29 | 26.6 ± 6.38 | 40.3 ± 15.06 | 48.3 ± 7.25 | 35.0 ± 13.39 | 49.9 ± 18.35 |
Mechanical pain sensitivity (MPS) | 1.2 ± 0.43 | 0.8 ± 0.24 | 3.0 ± 1.54 | 1.8 ± 0.71 | 3.4 ± 1.46 | 2.1 ± 0.96 | 3.9 ± 1.82 | 3.2 ± 1.21 |
Dynamic mechanical allodynia (DMA) | 0.0 ± 0.03 | 0.0 ± 0.01 | 0.0 ± 0.01 | 0.0 ± 0.00 | 0.0 ± 0.00 | 0.01 ± 0.01 | 0.1 ± 0.13 | 0.01 ± 0.01 |
Wind-up (WUR) | 1.4 ± 0.23 | 1.8 ± 0.10 | 3.7 ± 1.07 | 4.2 ± 0.95 | 3.3 ± 0.84 | 2.59 ± 0.22 | 1.7 ± 0.45 | 2.0 ± 0.26 |
Vibration detection threshold (VDT) (x/8) | 7.3 ± 0.38 | 7.8 ± 0.22 | 7.6 ± 0.16 | 7.7 ± 0.15 | 7.9 ± 0.08 | 8.0 ± 0.00 | 7.6 ± 0.16 | 7.3 ± 0.28 |
Pressure pain threshold (PPT; Pa) | 245.0 ± 54.20 | 261.7 ± 67.43 | 267.0 ± 37.54 | 265.3 ± 33.52 | 318.0 ± 30.53 | 327.0 ± 29.00 | 182.1 ± 14.38 | 170.1 ± 17.28 |