placebo - Placebo effects Placebo is Latin for"I will...

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Placebo effects Placebo is Latin for “I will please” Refers to any type of treatment that is inert Used in research trials to objectively test the efficacy of new treatments One group is given the treatment, while another group (the control group) receives a placebo Comparing the results from both groups should reveal the effects of the treatment
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Placebo American Heritage Dictionary 1. A substance containing no medication and prescribed or given to reinforce a patient's expectation to get well 2. An inactive substance or preparation used as a control in an experiment or test to determine the effectiveness of a medicinal drug 3. Something of no intrinsic remedial value that is used to appease or reassure another
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Placebo effects (cont.) Interestingly, some people get better in the placebo group This phenomenon is known as “the placebo effect” The placebo effect is substantial About one third of people taking placebos for a number of complaints will experience relief The underlying mechanisms remain a mystery
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Sham The term “sham treatment” is often used instead of placebo Definition: Something false or empty that is purported to be genuine; a spurious imitation
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Placebo effects (cont.) The placebo effect is triggered by the patient's belief in the treatment and their expectation of feeling better If symptoms are relieved by taking an inert substance or undergoing a dummy procedure, was the original illness imaginary? No
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Factors that influence the placebo effect Characteristics of the placebo If the pill (or treatment) looks genuine, the person taking it is more likely to believe that it contains active ingredients Larger sized pills suggest a stronger dose than smaller pills, and taking two pills appears more potent than just one Injections have a more powerful effect than pills
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Factors that influence (cont.) Attitude of the patient If the person expects the treatment to work,
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placebo - Placebo effects Placebo is Latin for"I will...

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