The Claim
Mediation analysis of placebo analgesia demonstrates that two opposing descending neural processes are engaged during the combination of expectation and conditioning interventions: descending facilitation mechanisms that increase spinal nociceptive signaling, and descending inhibition mechanisms that reduce conscious pain perception.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
When people expect pain relief and have prior experience with effective treatments, their brains appear to activate two opposite nerve pathways - one that actually makes the spinal nerves more sensitive, and another that helps them feel less pain consciously.
See the scientific wording
Mediation analysis suggests two descending neural processes are engaged during expectation plus conditioning placebo analgesia: descending facilitation that increases spinal nociception and descending inhibition that reduces conscious pain perception
What the research says
1 studyThe study tested placebo analgesia by combining expectations and conditioning. It found that this combination triggers two opposite brain processes: one that makes the spinal cord more sensitive to pain signals, and another that reduces the conscious feeling of pain. This matches exactly what the claim describes.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.