Figure 1.

Examples of individual galvanic skin responses (GSR) to the different types of tactile stimuli during the psychophysiological experiment. Baseline GSR rates were recorded in microsiemens (μS) and were first obtained by presenting the subjects with familiar control stimuli (Control). Novel: GSRs to non‐aversive tactile stimuli used in the PET novel tactile encoding condition. Aversive: GSRs to aversive stimuli used in the PET aversive tactile condition. Significant differences were observed between the aversive and the non‐aversive tactile stimuli (paired t‐test, P < 0.05).