Expectancy and Conditioning in Placebo Analgesia: Separate or Connected Processes?

@article{Kirsch2014ExpectancyAC,
  title={Expectancy and Conditioning in Placebo Analgesia: Separate or Connected Processes?},
  author={Irving Kirsch and Jian Kong and Pamela Sadler and Rosa B. Spaeth and Amanda V. Cook and Ted J. Kaptchuk and Randy L. Gollub},
  journal={Psychology of consciousness},
  year={2014},
  volume={1 1},
  pages={51-59}
}
Expectancy and conditioning are often tested as opposing explanations of placebo analgesia, most commonly by pitting the effects of a conditioning procedure against those of a verbally-induced expectation for pain reduction. However, conditioning procedures can also alter expectations, such that the effect of conditioning on pain might be mediated by expectancy. We assessed the effect of conditioning on expected pain and placebo-induced pain reduction. Participants were told that the treatment… CONTINUE READING
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