Regional cerebral blood flow (rCBF) in man during perception of radiant warmth and heat pain.
The present study concerns the effects of experimental pain (radiant warmth and heat pain) on regional cerebral blood flow (rCBF) in pretrained subjects. The radiant warmth caused a general rCBF increase. However, if anxiety was avoided, heat pain caused the general rCBF level to return towards the level at rest. Thus, pain sensation per se may not cause a larger rCBF (and metabolic) response than that of the localized tactile stimulation, provided that the element of psychic apprehension and anxiety is eliminated or controlled.
D000328:Adult; D001007:Anxiety; D001944:Breath Tests; D002245:Carbon Dioxide / Q000032:analysis; D002560:Cerebrovascular Circulation; D004558:Electric Stimulation; D006358:Hot Temperature; D006801:Humans; D008297:Male; D008875:Middle Aged; D010146:Pain; D010465:Perception; D012146:Rest
D002245:Carbon Dioxide