Table 3.
Task Characteristics
| Study | Duration (seconds) | Inter-heat interval (seconds) | Locations (number of sites) | Range of Number of Trials Per Subject | Mean proportion of trials excluded (Std. Deviation) | Other experimental manipulations |
|---|---|---|---|---|---|---|
| NPS Training Data | ||||||
| Study 1 (NSF) | 10 | 38 | Arm (3) | 35–48 | 0.08 (0.07) | Masked emotional faces evenly crossed with temperature |
| NPS Testing Data | ||||||
| Study 2 (BMRK3) | 12.5 | 20.5–28.5 | Arm (2) | 97 | 0.1 (0.04) | Cognitive self-regulation up and down |
| Study 3 (BMRK4) | 11 | 25–27 | Arm (4), Foot (4) | 81 | 0.08 (0.06) | Heat-predictive visual cues (low, medium, or high) |
| Study 4 (IE) | 11 | 36–38 | Arm (6) | 48 | N/A | Heat-predictive visual cues; placebo manipulation |
| Study 5 (ILCP) | 10 | 17–25 | Arm (2) | 64 | 0.05 (0.03) | Agency (make choice, observe choice), Certainty (80% low pain, 50% low pain) |
| Study 6 (EXP) | 10 | 38 | Arm (4) | 61–64 | 0.03 (0.04) | Heat-predictive auditory cues |
| Study 7 (SCEBL) | 1.85 | 26–37 | Leg (6) | 96 | 0.04 (0.03) | Heat-predictive visual cues (low or high) and unreinforced social information |
Note: The exclusion criterion was a high variance inflation factor.