The Claim

The expectation-only (E-only) placebo analgesia manipulation facilitates the nociceptive flexion reflex while having no significant effect on pain ratings or skin conductance response.

Source: The Influence of Placebo Analgesia Manipulations on Pain Report, the Nociceptive Flexion Reflex, and Autonomic Responses to Pain.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
40score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

When researchers tell people a pain treatment will work but don't actually give them any real treatment, it seems to make their automatic pain reflex stronger, but doesn't change how much pain they report feeling or how their body reacts to pain.

See the scientific wording

Expectation-only (E-only) placebo analgesia manipulation facilitates nociceptive flexion reflex while having no significant effect on pain ratings or skin conductance response

What the research says

1 study

  1. Study: The Influence of Placebo Analgesia Manipulations on Pain Report, the Nociceptive Flexion Reflex, and Autonomic Responses to Pain.

    The study tested people receiving expectation-only placebo treatment and found it increased their spinal pain reflex (NFR) but didn't change their reported pain levels or skin sweat response - exactly what the claim says.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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