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Related Concept Videos

Blind Procedures02:07

Blind Procedures

Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...
The Placebo Effect01:54

The Placebo Effect

The placebo effect occurs when people's expectations or beliefs influence or determine their experience in a given situation. In other words, simply expecting something to happen can actually make it happen.
Blinding01:11

Blinding

Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.

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Updated: Jun 15, 2026

How to Study Placebo Responses in Motion Sickness with a Rotation Chair Paradigm in Healthy Participants
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Published on: December 14, 2014

Migraine treatment and placebo effect.

José G Speciali1, Mário Peres, Marcelo E Bigal

  • 1Department of Neurology, School of Medicine at Ribeirão Preto, São Paulo University, São Paulo, Brazil. speciali@netsite.com.br

Expert Review of Neurotherapeutics
|March 2, 2010
PubMed
Summary

Placebos, inactive substances causing therapeutic effects, are crucial in headache research, particularly for migraine treatment. Understanding placebo mechanisms is key to advancing pain management strategies.

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Clinical Research

Background:

  • Placebos are physiologically inactive substances that can trigger therapeutic effects.
  • The nocebo effect is the adverse outcome associated with placebo administration.
  • Cognitive modulation of pain perception is exemplified by placebo analgesia.

Purpose of the Study:

  • To review the mechanisms underlying the placebo effect.
  • To evaluate the significance of placebo in acute migraine treatment.
  • To discuss the role of placebo in preventive migraine therapy and future research directions.

Main Methods:

  • Literature review on placebo mechanisms.
  • Analysis of placebo's role in acute migraine treatment.
  • Exploration of placebo's impact on preventive migraine strategies.

Main Results:

  • Placebo effects significantly influence pain perception.
  • Placebo is important in both acute and preventive migraine treatment.
  • Future research will further elucidate placebo's role in headache disorders.

Conclusions:

  • The placebo effect is a critical factor in headache and migraine management.
  • Further investigation into placebo mechanisms will enhance therapeutic outcomes.
  • Understanding placebo responses is vital for optimizing migraine treatment strategies.