nocebo effect

noun

Definition of nocebo effect

  1. :  the development of adverse side effects or worsening in the condition of a patient that occurs in response to medical treatment but cannot be considered due to the specific treatment used With a nocebo effect, if test subjects believe there may be side effects, they often experience them. Again, expectations shape reality. — Sanjay Gupta

First Known Use of nocebo effect

1969


Medical Dictionary

nocebo effect

noun

Medical Definition of nocebo effect

  1. :  the development of adverse side effects or worsening in the condition of a patient that occurs in response to medical treatment but cannot be considered due to the specific treatment used With a nocebo effect, if test subjects believe there may be side effects, they often experience them. Again, expectations shape reality.—Sanjay Gupta, Chasing Life: New Discoveries In The Search For Immortality … , 2007 The placebo effect has an evil twin: the nocebo effect, in which dummy pills and negative expectations can produce harmful effects.—Helen Pilcher, New Scientist, 16 May 2009


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