Figure 1.

The task paradigm for the TSSP and control conditions. The temperature of stimulation was calibrated for each individual to produce a moderate pain rating (50 on a 100‐point scale) for the last stimulus of the TSSP paradigm. The same temperature was used for both conditions. The duration of the first baseline period was reduced for the control condition, so that the final baseline period was the same between conditions. For the TSSP condition, the heat stimuli were applied every 3 s, for 1.5 s, whereas in the control condition, the heat stimuli were applied every 6 s, also for a duration of 1.5 s. [Color figure can be viewed in the online issue, which is available at http://wileyonlinelibrary.com.]