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[Seeing others is believing-analgesic placebo effects through observational learning?]
Marie Schwartz1, J Stuhlreyer2, R Klinger2
1Klinik für Anästhesiologie, Schmerzmedizin und Schmerzpsychologie, Universitätsklinikum Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Deutschland. ma.schwartz@uke.de.
Schmerz (Berlin, Germany)
|April 14, 2022
Summary
Observational learning can induce placebo analgesia, a pain management mechanism. This review of 12 studies suggests attention is key, with effects comparable to classical conditioning, offering potential clinical benefits for chronic pain patients.
Area of Science:
- Psychology
- Neuroscience
- Pain Management
Background:
- Extensive research exists on placebo analgesia mechanisms for chronic pain.
- Observational learning's role in placebo analgesia remains under-researched.
- This study focuses on the impact of observing others on pain perception.
Purpose of the Study:
- To review existing research on placebo analgesia induced by observational learning.
- To discuss evidence supporting observational learning as a trigger for placebo analgesia.
- To examine factors influencing observational learning of placebo effects.
Main Methods:
- A systematic search of research databases was conducted.
- Studies specifically investigating placebo analgesia through observational learning were included.
- Inclusion and exclusion criteria were applied, resulting in 12 studies.
Main Results:
- Preliminary evidence suggests observation can trigger placebo analgesia independently.
- Observational learning in experimental settings can induce placebo effects, with attention being a critical factor.
- Effect sizes range from small to large, comparable to classical conditioning, and are induced by various model formats (live, video, pictures).
Conclusions:
- Current evidence provides a theoretical foundation for significant clinical applications of observational learning in pain management.
- Further research is necessary to validate these findings specifically in chronic pain patient populations.
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