Participants will rate how much pain they experience during several brief thermal stimulations at painful but tolerable temperatures participants pre-approve. During some of the stimuli participants will be in virtual reality, and during some stimuli participants will not be in VR. Sometimes participants will receive two brief stimuli at the same time.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
worst pain during one stimulus vs during two simultaneous stimuli
Timeframe: measured immediately after each pain stimulus