Nocebo Hyperalgesia in Patients With Fibromyalgia and Healthy Controls: An Experimental Investigation of Conditioning and Extinction Processes at Baseline and 1-Month Follow-up

Karacaoglu, Merve; Peerdeman, Kaya J.; Numans, M.E.; Stolk, Martha R.; Meijer, Simone; Klinger, Regine; Veldhuijzen, Dieuwke S.; van Middendorp, Henriët; Evers, A.W.M.

doi:10.1016/j.jpain.2023.05.003

Nocebo Hyperalgesia in Patients With Fibromyalgia and Healthy Controls

Title

Nocebo Hyperalgesia in Patients With Fibromyalgia and Healthy Controls: An Experimental Investigation of Conditioning and Extinction Processes at Baseline and 1-Month Follow-up

Author

Karacaoglu, Merve (Universiteit Leiden; Leiden Institute for Brain and Cognition, Leiden)
Peerdeman, Kaya J. (Universiteit Leiden; Leiden Institute for Brain and Cognition, Leiden)
Numans, M.E. (Leiden University Medical Center)
Stolk, Martha R. (Universiteit Leiden)
Meijer, Simone (Universiteit Leiden; Leiden Institute for Brain and Cognition, Leiden)
Klinger, Regine (University Medical Center Hamburg-Eppendorf)
Veldhuijzen, Dieuwke S. (Universiteit Leiden; Leiden Institute for Brain and Cognition, Leiden)
van Middendorp, Henriët (Universiteit Leiden; Leiden Institute for Brain and Cognition, Leiden)
Evers, A.W.M. (TU Delft Applied Ergonomics and Design; Universiteit Leiden; Leiden Institute for Brain and Cognition, Leiden; Leiden University Medical Center; Erasmus Universiteit Rotterdam)

Date

2023

Abstract

Nocebo effects are adverse treatment outcomes that are not ascribed to active treatment components. Potentially, their magnitude might be higher in patients with chronic pain compared to healthy controls since patients likely experience treatment failure more frequently. The current study investigated group differences in the induction and extinction of nocebo effects on pressure pain at baseline (N = 69) and 1-month follow-up (N = 56) in female patients with fibromyalgia and matched healthy controls. Nocebo effects were first experimentally induced via classical conditioning combined with instructions on the pain-increasing function of a sham transcutaneous electrical nerve stimulation device, then decreased via extinction. One month later, the same procedures were repeated to explore their stability. Results suggest that nocebo effects were induced in the healthy control group during baseline and follow-up. In the patient group, nocebo effects were only induced during follow-up, without clear group differences. Extinction was only observed during baseline in the healthy control group. Further comparisons of nocebo effects and extinction indicated no significant changes across sessions, possibly suggesting their overall magnitudes were stable over time and across groups. In conclusion, contrary to our expectations, patients with fibromyalgia did not have stronger nocebo hyperalgesia; instead, they might be less responsive to nocebo manipulations than healthy controls. Perspective: The current study is the first to investigate group differences in experimentally manipulated nocebo hyperalgesia between chronic pain and healthy populations at baseline and 1-month follow-up. Since nocebo effects are common in clinical settings, their investigation in different populations is essential to explain and minimize their adverse effects during treatment.

Subject

classical conditioning
fibromyalgia
hyperalgesia
Nocebo effect
pressure pain

To reference this document use:

http://resolver.tudelft.nl/uuid:b2d17c12-f5b7-4049-888d-8b1f8822d1c5

DOI

https://doi.org/10.1016/j.jpain.2023.05.003

ISSN

1526-5900

Source

The Journal of Pain, 24 (9), 1696-1711

Part of collection

Institutional Repository