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. 2019 Mar 12;14(3):e0213677. doi: 10.1371/journal.pone.0213677

Fig 2. Schematic representation of the course of the experiment.

Fig 2

To trigger spontaneous facial self-touch participants had to manually explore (expl) and subsequently remember two relief stimuli for a retention interval (RI) of 14minutes during which aversive sounds were played via loudspeaker. Afterwards they were asked to reproduce (rep) them on a sheet of paper. The process was performed twice with different relief stimuli.