Choice, Expectations, and the Placebo Effect for Sleep Difficulty.

CONCLUSION: These findings suggest that choice does not enhance the placebo effect over longer treatment periods (up to 7 days) when placebo effects are readily established without choice. As such, any benefit of choice on placebo effects may be confined to quite specific circumstances.
CLINICAL TRIALS REGISTRATION: ACTRN12618001199202.
PMID: 31504091 [PubMed - as supplied by publisher]

Source: Annals of Behavioral Medicine - September 4, 2019 Category: Psychiatry & Psychology Authors: Yeung V, Sharpe L, Geers A, Colagiuri B Tags: Ann Behav Med Source Type: research