References

[1]	KELLI F Koltyn, AW Garvin, RL Gardiner, and TOBEN F Nelson. Perception of pain following aerobic exercise. Medicine and science in sports and exercise, 28(11):1418–1421, 1996.

[2]	Tor D Wager, James K Rilling, Edward E Smith, Alex Sokolik, Kenneth L Casey, Richard J Davidson, Stephen M Kosslyn, Robert M Rose, and Jonathan D Cohen. Placebo-induced changes in fmri in the anticipation and experience of pain. Science, 303(5661):1162–1167, 2004.

[3]	John Posner, Andras Telekes, Dominic Crowley, Richard Phillipson, and Anthony W Peck. Effects of an opiate on cold-induced pain and the cns in healthy volunteers. Pain, 23(1):73–82, 1985.

[4]	Predrag Petrovic, Eija Kalso, Karl Magnus Petersson, and Martin Ingvar. Placebo and opioid analgesia–imaging a shared neuronal network. Science, 295(5560):1737–1740, 2002.

[5]	Guy H Montgomery and Irving Kirsch. Classical conditioning and the placebo effect. Pain, 72(1):107–113, 1997.

[6]	Ulrike Bingel, Jürgen Lorenz, Eszter Schoell, Cornelius Weiller, and Christian Büchel. Mechanisms of placebo analgesia: racc recruitment of a subcortical antinociceptive network. Pain, 120(1):8–15, 2006.

[7]	Ethne L Nussbaum and Laurie Downes. Reliability of clinical pressure-pain algometric measurements obtained on consecutive days. Physical therapy, 78(2):160–169, 1998.

[8]	Albert G Forgione and Theodore X Barber. A strain gauge pain stimulator. Psychophysiology, 8(1):102–106, 1971.

[9]	Thomas Edwards, Stephen Baker, and Roger Eston. A method of detecting the muscle pain threshold using an objective software-mediated technique. Perceptual and motor skills, 82(3):955–960, 1996.