Open AccessOpen- and Closed-Label Placebo and Nocebo Suggestions About a Sham Transdermal Patch
Author(s) -
Stefanie H Meeuwis,
Henriët van Middendorp,
A.P.M. Lavrijsen,
Dieuwke S. Veldhuijzen,
Andrea W M Evers
Publication year - 2020
Publication title -
psychosomatic medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.62
H-Index - 187
eISSN - 1534-7796
pISSN - 0033-3174
DOI - 10.1097/psy.0000000000000862
Subject(s) - placebo , nocebo , open label , nocebo effect , transdermal patch , psychology , medicine , expectancy theory , histamine , anesthesia , randomized controlled trial , transdermal , pharmacology , alternative medicine , pathology , social psychology
Placebo effects may occur when it is known that an inert substance is given (i.e., open-label placebo). It is not yet clear whether these effects are similar to concealed (i.e., closed-label) placebo effects for itch or whether nocebo effects can be induced under open-label conditions.