The purpose of the study is to gain a better understanding of pain processing in the brain. Our understanding of how pain is processed in the brain is limited. We are testing for individual differences in pain perception and emotion.
Study Type
OBSERVATIONAL
Enrollment
541
In the Placebo intervention, participants are given an inert cream with instructions that it is "Prodicaine, an effective pain-relieving drug". The cream is applied to two fingers on the left hand.
In the Control intervention, participants are given an inert cream with instructions that it is "a control cream with no effects" . The cream is applied to two fingers on the left hand.
University of Colorado, Boulder
Boulder, Colorado, United States
Pain Rating Scores Made on a Visual Analog Scale (VAS)
Self reported pain using a Visual Analogue Scale (VAS) ranging from 0-100 (with 0 representing "no pain at all" and 100 representing "most intense pain imaginable (in the context of the experiment)). Higher scores indicate more pain. 0 is the minimum value and 100 is the maximum value. This scale is used for both thermal and mechanical pain. Reported values reflect averages of VAS ratings for individual stimuli for each of thermal and mechanical pain.
Time frame: Measured during pain tasks at a single 4 hour experimental session (within one month of screening completion).
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