Annals of Behavioral Medicine

, Volume 50, Issue 3, pp 445–451

You Can’t Always Get What You Want: The Influence of Choice on Nocebo and Placebo Responding

  • Hannah Bartley
  • Kate Faasse
  • Rob Horne
  • Keith J. Petrie
Original Article

Abstract

Objective

Choice may be an important influence on the effectiveness and side effects of medical treatments.

Purpose

We investigated the impact of having a choice of medication compared to no choice on both nocebo and placebo responding.

Methods

Sixty-one participants were randomly assigned to either choose between or be assigned to one of the two equivalent beta-blocker medications (actually placebos) for pre-examination anxiety.

Results

There was a greater nocebo response in the no choice group and an increased placebo response in the choice group. Participants in the no choice group attributed significantly more side effects to the tablet than the choice group (p = 0.045), particularly at the 24-h follow-up (p = 0.002). The choice group showed a stronger placebo response in heart rate than the non-choice group.

Conclusion

Not being given a choice of medication increased the nocebo effect and reduced the placebo response to the treatment.

Keywords

Choice Nocebo effect Placebo effect Side effects Medication efficacy 

Copyright information

© The Society of Behavioral Medicine 2016

Authors and Affiliations

  • Hannah Bartley
    • 1
  • Kate Faasse
    • 1
  • Rob Horne
    • 2
  • Keith J. Petrie
    • 1
  1. 1.Department of Psychological Medicine, Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand
  2. 2.Centre for Behavioural MedicineUCL School of PharmacyLondonUK

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