Table 1.
Psychophysical responses of placebo responders.
| Pain Intensity | PANAS-P | PANAS-N | MPQ-S | MPQ-A | |
|---|---|---|---|---|---|
| Condition I | 2.16 ± 1.17 | 23.14 ± 6.13 | 14.64 ± 3.88 | − | − |
| Condition II | 4.93 ± 1.21 | 21.36 ± 6.49 | 16.50 ± 5.49 | 9.93 ± 6.06 | 6.21 ± 3.95 |
| Condition III | 1.79 ± 1.11 | 20.64 ± 6.38 | 13.43 ± 3.16 | − | − |
| Condition IV | 3.75 ± 0.71 | 20.50 ± 6.47 | 13.36 ± 2.95 | 3.36 ± 2.27 | 2.07 ± 1.64 |
Mean ± 1 SD of psychophysical measures during conditions in the absence and presence of placebo in 14 placebo responders. Pain intensity refers to the average ratings of momentary pain acquired every 15 s.