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How to Study Placebo Responses in Motion Sickness with a Rotation Chair Paradigm in Healthy Participants

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How Placebo Needles Differ From Placebo Pills?

Younbyoung Chae¹, Ye-Seul Lee^1,2, Paul Enck³

¹Acupuncture and Meridian Science Research Center, College of Korean Medicine, Kyung Hee University, Seoul, South Korea.

Frontiers in Psychiatry

|June 23, 2018

Summary

Placebo needles in acupuncture research may not be inert controls, as they can elicit physiological responses and enhance therapeutic effects, challenging their validity. This review examines their characteristics and compares them to placebo pills.

Keywords:

acupuncture blinding control physiology placebo

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Area of Science:

Integrative Medicine
Clinical Research Methodology
Neuroscience

Background:

Acupuncture research often uses placebo needles as controls, but their validity is debated.
Placebo needles are designed with non-penetrating mechanisms, unlike traditional acupuncture.

Purpose of the Study:

To review placebo needle characteristics and compare them to placebo pills.
To evaluate physiological responses and blinding efficacy of placebo needles in acupuncture research.

Main Methods:

Literature review analyzing studies on placebo needles and acupuncture controls.
Comparison of placebo needles and placebo pills regarding physiological and blinding effects.

Main Results:

Placebo needles may elicit physiological responses similar to real acupuncture, suggesting comparable clinical efficacy.
Blinding efficacy of placebo needles is often insufficient, potentially enhancing perceived effects.
Placebo needles can offer therapeutic benefits over placebo pills through sensory stimulation.

Conclusions:

The use of placebo needles as inert controls in acupuncture research requires careful consideration.
Alternative control strategies for placebo effects in acupuncture therapy should be explored.