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. 2013 Dec 23;8(12):e84001. doi: 10.1371/journal.pone.0084001

Figure 1. Stimuli used during the fMRI task.

Figure 1

Participants watched video clips depicting Asian or Caucasian actors who represented members of own-group or other-group receiving either painful (syringe needle) or non-painful (cotton-bud) touch on the left or right cheek. Actors included in this figure have given written informed consent for publication of their photograph, as outlined in the PLOS consent form.