'Expensive' placebo beats 'cheap' one in Parkinson's disease: study

January 28, 2015 9:13 PM

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NEW YORK (Reuters) - When patients with Parkinson's disease received an injection described as an effective drug costing $1,500 per dose, their motor function improved significantly more than when they got one supposedly costing $100, scientists reported on Wednesday.

Underlining the power of expectations, the motor improvements, measured by a standard Parkinson's assessment, occurred even though both injections contained only saline and no active ingredients.

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