Placebo Drug
Placebo Drug - Related Videos
06:58
Placebos in Research
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2023
Source: Laboratories of Gary Lewandowski, Dave Strohmetz, and Natalie Ciarocco—Monmouth University Clinical research focuses on the efficacy of treatments for addressing disorders and illnesses. A challenge with this type of research is that participants often have pre-existing beliefs about the treatment, particularly expectations that the treatment will work. Though it has been practiced around the world for centuries, yoga is a relatively recent fitness craze in the United States with a...
01:54
The Placebo Effect
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2020
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. The placebo effect is commonly described in terms of testing the effectiveness of a new medication. Imagine that you work in a pharmaceutical company, and you think you have a new drug that is effective in treating depression. To demonstrate that your medication is effective, you run an...
08:50
How to Study Placebo Responses in Motion Sickness with a Rotation Chair Paradigm in Healthy Participants
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Cited by 9 •
2014
An experimental rotation chair paradigm is used to investigate whether a placebo intervention on motion sickness affects subjective outcome measures only or also affects behavioral and objective measures in a balanced placebo design.
05:10
Drug Repurposing Hypothesis Generation Using the "RE:fine Drugs" System
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Cited by 4 •
2016
Here we describe a protocol using the web-based drug repurposing hypothesis generation tool: "RE:fine Drugs." This protocol can be modified to a user's preferences at the level of the query type (gene, drug or disease) and/or the range of available advanced options.
07:02
A Computerized Test Battery to Study Pharmacodynamic Effects on the Central Nervous System of Cholinergic Drugs in Early Phase Drug Development
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Cited by 5 •
2019
A validated computerized battery of neuropsychological and neurophysiological tests is used to study pharmacodynamic effects on the central nervous system of newly developed drugs in early phase development. To demonstrate the test battery, the acute effects of mecamylamine and the reversal of these effects by two agonist drugs are described.
FAQs
Expectation and conditioning can shape placebo responses through different psychological routes. Expectations reflect what a person believes will happen, whereas conditioning links treatment settings or experiences with anticipated change. Beliefs, prior experiences, and the therapeutic context may therefore influence perceived symptoms and measured outcomes even when the substance itself has no pharmacological action.
Responses vary because treatment expectations do not arise in isolation. A participant’s beliefs, earlier experiences with treatment, and the surrounding therapeutic context can all alter how symptoms are perceived and reported. This variability matters in psychology because it shows that cognition and behavior can interact with physiological processes, helping explain why identical inactive substances do not produce identical outcomes.
Comparing a placebo with an active drug helps isolate treatment-specific effects. If both groups improve, the difference between their outcomes can indicate how much change is associated with the drug’s pharmacological action rather than expectations or context. The comparison is especially important for outcomes such as pain and mood, where subjective experience contributes substantially to measurement.
In a placebo-controlled study, participants may receive an inactive substance designed to resemble the genuine medication under controlled conditions. Researchers then compare measured outcomes across treatment conditions rather than interpreting improvement in the placebo group alone as evidence of drug action. This design helps separate pharmacological effects from changes associated with expectations and treatment context.
Placebo-controlled research can examine changes in pain, mood, and other subjective experiences. These outcomes are useful for studying how participants perceive and report symptoms, but they also require careful interpretation because improvement may reflect expectations, conditioning, or the broader therapeutic setting. Comparing conditions gives researchers a clearer basis for distinguishing contextual responses from drug-specific effects.
Because participants receive an inactive substance within a research design, investigators must address consent and ethical oversight carefully. Participants’ understanding of the study conditions is part of responsible research, while oversight helps ensure that comparisons between placebo and genuine treatment are conducted appropriately. These safeguards are important when studying symptoms and experiences that may be influenced by expectations.