Two paradigms of pain modulation were administered to 191 healthy participants in a random order: Conditioned Pain Modulation in response to painful stimuli (CPM(painful)) tested by the coadministration of repeated short painful heat stimuli and a conditioning tonic cold pain stimulation; and Conditioned Pain Modulation in response to nonpainful stimuli (CPM(nonpainful)) tested similarly, except for using a painless conditioning stimulation.
C0009443
Common Cold