Side effects are more frequent and severe, or simply appear by just talking about them. But not the informed consent is to be challenged, rather the form of giving risk information. Nocebo effects mainly originate from induced negative expectations, not from the information itself. Concerns about legal consequences of an incomplete list of risks do not release from the responsibility to guide and help the patient to an understanding and a balanced decision.
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http://dx.doi.org/10.1055/s-0040-100081 | DOI Listing |
Expert Opin Biol Ther
January 2025
Department of Pediatric Rheumatology, Kocaeli University, Kocaeli, Turkey.
Psychol Rev
January 2025
Pain Research Group, Institute of Psychology, Jagiellonian University.
Research suggests that negative affective states, such as fear and anxiety that accompany placebo treatment may be considered predictors of placebo hypoalgesia and nocebo hyperalgesia. There is also data showing that the likelihood of developing nocebo hyperalgesia is related to the relatively stable tendency to experience these negative emotions. We aimed to summarize the current state-of-the-art in studies and theoretical models on the role of fear and anxiety in placebo hypoalgesia/nocebo hyperalgesia, with a clear differentiation between these emotions.
View Article and Find Full Text PDFJ Psychosom Res
December 2024
Health Psychology, Faculty of Medical and Health Sciences, University of Auckland, New Zealand. Electronic address:
Objective: To assess whether individuals reported more side effects and decreased mood after receiving an open-label placebo compared to a control group that received no treatment.
Methods: We randomized participants to receive an open placebo or no treatment. The primary outcome was reported side effects on the Side effect Attribution Scale (SEAS) at 15 min and at 24-h.
Front Psychiatry
December 2024
College of Medicine, University of Arizona, Tucson, AZ, United States.
Thousands of essays and studies have been published on placebo and nocebo. Yet, despite this plethora of information, we are not much closer to a comprehensive understanding of the fundamental mechanism producing placebo and nocebo effects than we were in 1946, when participants in the Cornell Conferences on Therapy speculated on the roles of authority, belief and expectancy. In this paper, we examine the weaknesses in current placebo and nocebo definitions and theories.
View Article and Find Full Text PDFBr J Health Psychol
February 2025
Department of Psychology, Institute of Psychology, Psychiatry, and Neuroscience, King's College London, London, UK.
Background: Nocebo responding involves the experience of adverse health outcomes in response to contextual cues. These deleterious responses impact numerous features of mental and physical health but are characterized by pronounced heterogeneity. Suggestion is widely recognized as a contributing factor to nocebo responding but the moderating role of trait responsiveness to verbal suggestions (suggestibility) in nocebo responding remains poorly understood.
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