causal
Analysis v1
Strong Support
Scientists found that when you combine expecting pain relief with a learning process (like getting a fake treatment that works like real medicine), it's the only way to actually reduce both how much pain people feel and their body's stress response to pain from electric shocks.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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The Influence of Placebo Analgesia Manipulations on Pain Report, the Nociceptive Flexion Reflex, and Autonomic Responses to Pain.
Randomized Controlled Trial
Human
2018 NovThe study tested different types of placebo treatments on people receiving painful electric shocks. Only the group that got both expectation and conditioning together showed reduced pain ratings AND reduced skin conductance (a measure of stress response). This confirms what the claim says.
Contradicting (0)
0
Community contributions welcome
No contradicting evidence found
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.