Abstract

The concept of placebo has evolved over time. Generally believed to be the basis of the premodern pharmacopoeia, the placebo has been adopted in practice as a harmless but unscientific approach towards alleviating symptoms. Currently, many medical scientists view placebos pejoratively as confounding elements in the analysis of randomized control trials.This article examines the changing attitudes towards placebos and the persistent controversies that surround their administration. The possible role of the placebo response as a functional salutogenic brain mechanism is considered, and elements of Edelman's neurobiological model of self and attractor theory are combined to explain how a unitary response by the central nervous system might yield diverse placebo effects. It is concluded that placebo responses are rooted in the complexity of mind/body interactions and that their underlying physiological mechanisms may be elucidated via methods that directly examine brain activity as the basis of subjective experience.

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Additional Information

ISSN
1529-8795
Print ISSN
0031-5982
Pages
pp. 328-338
Launched on MUSE
2004-07-09
Open Access
No
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