Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2011 Feb;36(1):69-78.
doi: 10.1093/jmp/jhq061. Epub 2011 Jan 10.

Understanding and harnessing placebo effects: clearing away the underbrush

Affiliations

Understanding and harnessing placebo effects: clearing away the underbrush

Franklin G Miller et al. J Med Philos. 2011 Feb.

Abstract

Despite strong growth in scientific investigation of the placebo effect, understanding of this phenomenon remains deeply confused. We investigate critically seven common conceptual distinctions that impede clear understanding of the placebo effect: (1) verum/placebo, (2) active/inactive, (3) signal/noise, (4) specific/nonspecific, (5) objective/subjective, (6) disease/illness, and (7) intervention/context. We argue that some of these should be eliminated entirely, whereas others must be used with caution to avoid bias. Clearing away the conceptual underbrush is needed to lay down a path to understanding and harnessing placebo effects in clinical medicine.

PubMed Disclaimer

References

    1. Benedetti F. Placebo effects: Understanding the mechanisms in health and disease. New York: Oxford University Press; 2009.
    1. Benedetti F, Lanotte M, Lopiano L, Colloca L. When words are painful: Unraveling the mechanisms of the nocebo effect. Neuroscience. 2007;147:260–71. - PubMed
    1. Colloca L, Lopiano L, Lanotte L, Benedetti F. Overt versus covert treatment for pain, anxiety, and Parkinson's disease. Lancet Neurology. 2004;3:679–84. - PubMed
    1. Di Blasi Z, Harkness E, Ernst E, Georgiou A, Kleijnen J. The influence of context effects on health outcomes: A systematic review. Lancet. 2001;357:757–62. - PubMed
    1. Eisenberg L. Disease and illness: Distinctions between professional and popular ideas of sickness. Culture, Medicine and Psychiatry. 1977;1:9–23. - PubMed