Figure 3

Schematic representation of a touch condition: during each condition 6 trials consisting of 6 heat pulses were delivered with a thermode on the ventral side of the participants left wrist. This thermode was calibrated before the start of the experiment per participant to elicit a tingling and burning sensation rated 45 ± 10 on the VAS pain scale. All three types of touch were administered continuously from trial 1 and onwards. One condition consists of one block on the contralateral arm and one on the ipsilateral arm.