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Ownership and cognitive connectedness with placebo objects predict pain-related behavoiral responses-evidence from
Sze Ki Rose Ng1, Eric Kenson Yau1, Wang On Li2
1Department of Psychology, Lingnan University, Hong Kong.
The Journal of Pain
|August 7, 2026
Summary
Cognitive connectedness to a placebo analgesic cream, even without active application, enhances pain relief. This psychological connection amplifies pain threshold and tolerance, suggesting new avenues for pain management.
Area of Science:
- Psychology
- Neuroscience
- Pain Management
Background:
- Placebo analgesia traditionally requires active treatment administration.
- The role of psychological factors in placebo effects is increasingly recognized.
- Investigating non-pharmacological pathways to analgesia is crucial for developing accessible pain relief strategies.
Purpose of the Study:
- To investigate if cognitive connectedness with a placebo analgesic enhances pain relief without active administration.
- To explore the role of self-object connection and possession in placebo analgesia.
- To examine the psychological mechanisms underlying placebo effects in pain management.
Main Methods:
- Two randomized controlled experiments were conducted with healthy participants.
- Study 1 involved explicit suggestions for self-object connection or disconnection with a placebo cream.
- Study 2 used an Implicit Association Test (IAT) to measure implicit self-association with a placebo cream, followed by a Cold Pressor Test (CPT) for pain assessment.
Main Results:
- Participants with induced self-object connection to a placebo cream showed significantly higher pain threshold and tolerance.
- Possession of a placebo cream, especially with implicit self-association, predicted enhanced analgesic responses.
- Cognitive connectedness to a placebo analgesic consistently amplified pain-related behavioral outcomes across both studies.
Conclusions:
- Placebo responses can be elicited through psychological connectedness with a placebo object, independent of active treatment.
- Ownership-driven self-object connection is a potential mechanism for placebo analgesia.
- Findings suggest simple, psychologically informed strategies for pain management through cognitive pathways.
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