Related Experiment Videos
Suggestion/placebo effects on pain: negative as well as positive
1Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University, Baltimore, Maryland, USA.
Journal of Pain and Symptom Management
|May 28, 1998
Summary
Positive and negative placebo suggestions significantly impact pain perception during cold exposure. Positive suggestions improved pain tolerance, while negative suggestions worsened it compared to neutral conditions.
Area of Science:
- Psychology
- Pain Research
- Neuroscience
Background:
- Placebo effects are well-documented in pain management.
- Understanding the influence of suggestion type on pain perception is crucial for therapeutic applications.
Purpose of the Study:
- To investigate the differential effects of positive and negative placebo suggestions on experimentally induced pain.
- To compare these effects against a neutral control condition.
Main Methods:
- Thirty-six participants were randomly assigned to positive placebo, negative placebo, or control groups.
- Participants received tailored suggestions regarding ice water hand immersion.
- Pain threshold, tolerance, and endurance were measured during cold exposure.
Main Results:
- Both positive and negative placebo suggestions significantly altered pain perception.
- Positive suggestions enhanced pain tolerance compared to the neutral control.
- Negative suggestions reduced pain tolerance relative to the neutral control.
Conclusions:
- Expectations, whether positive or negative, can modulate pain experiences.
- Placebo interventions can be tailored to influence pain outcomes, highlighting the mind-body connection in pain perception.