Cortical correlates of false expectations during pain intensity judgments—a possible manifestation of placebo/nocebo cognitions

  title={Cortical correlates of false expectations during pain intensity judgments—a possible manifestation of placebo/nocebo cognitions},
  author={J. Lorenz and M. Hauck and Robert Paur and Yoko Nakamura and A. Engel},
  journal={Brain, Behavior, and Immunity},
  • J. Lorenz, M. Hauck, +2 authors A. Engel
  • Published 2005
  • Medicine, Psychology
  • Brain, Behavior, and Immunity
  • We investigated the effects of expectation on intensity ratings and somatosensory evoked magnetic fields and electrical potentials following painful infrared laser stimuli in six healthy subjects. The stimulus series contained trials preceded by different auditory cues which either contained valid, invalid or no information about the upcoming laser intensity. High and low intensities occurred equally probable across cue types. High intensity stimuli induced greater pain than low intensity… CONTINUE READING
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