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, 15 (2), e2001998

Putting Placebos to the Test


Putting Placebos to the Test

Liza Gross. PLoS Biol.

Conflict of interest statement

The authors have declared that no competing interests exist.


Fig 1
Fig 1. Expectations color one’s response to medical treatment.
Henry Beecher, who treated soldiers like those in this surgery tent in Italy, was surprised to see a disconnect between the extent of a soldier’s wounds and his perception of pain. Beecher attributed their tolerance of pain to a psychological effect that counteracted sensations of pain. Image credit: US National Library of Medicine.

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