Placebo and nocebo effects are salubrious benefits and negative outcomes attributable to
non-specific symbolic components. Leveraging advanced experimental and analytical …

Once considered nuisance variance in clinical trials, placebo effects and nocebo effects are
now widely recognized as important and mutable psychobiological contributors to mental …

The placebo effect demonstrates how positive expectancies shape the effectiveness of
various treatments. Across studies, placebo treatments are interventions (creams, pills, etc.) …

Background Placebo analgesia can be induced by social observational learning. The aim of
this study was to determine whether this effect can be influenced by the social status of a …

This study investigated for the first time the effects of individual and combined application of
3 learning techniques (verbal suggestions, classical conditioning, and observational …

Research suggests that negative affective states, such as fear and anxiety that accompany
placebo treatment may be considered predictors of placebo hypoalgesia and nocebo …

Operant conditioning was shown to be a mechanism of placebo hypoalgesia; however, only
verbal rewards and punishers were applied in the previous study. We aimed to induce …

Despite being widely assumed, the worsening impact of unpredictability on pain perception
remains unclear because of conflicting empirical evidence, and a lack of systematic …

Previous research has indicated that an open-label placebo can reduce pain in both healthy
participants and patients with chronic pain. Because nondeceptive placebos seem to be an …

Obesity affect a significant proportion of the population in the United States, and is
associated with numerous health consequences including anxiety, depression, and chronic …