Socially transmitted placebo effects.,Nature Human Behaviour

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Socially transmitted placebo effects.
Nature Human Behaviour ( IF 21.4 ) Pub Date : 2019-10-21 , DOI: 10.1038/s41562-019-0749-5
Pin-Hao A Chen ₁ , Jin Hyun Cheong ₁ , Eshin Jolly ₁ , Hirsh Elhence ₁ , Tor D Wager ₁ , Luke J Chang ₁

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Medical treatments typically occur in the context of a social interaction between healthcare providers and patients. Although decades of research have demonstrated that patients' expectations can dramatically affect treatment outcomes, less is known about the influence of providers' expectations. Here we systematically manipulated providers' expectations in a simulated clinical interaction involving administration of thermal pain and found that patients' subjective experiences of pain were directly modulated by providers' expectations of treatment success, as reflected in the patients' subjective ratings, skin conductance responses and facial expression behaviours. The belief manipulation also affected patients' perceptions of providers' empathy during the pain procedure and manifested as subtle changes in providers' facial expression behaviours during the clinical interaction. Importantly, these findings were replicated in two more independent samples. Together, our results provide evidence of a socially transmitted placebo effect, highlighting how healthcare providers' behaviour and cognitive mindsets can affect clinical interactions.

中文翻译：

社会传播的安慰剂效应。

医疗治疗通常发生在医疗保健提供者和患者之间的社交互动中。尽管数十年的研究表明患者的期望可以极大地影响治疗结果，但人们对医疗服务提供者期望的影响却知之甚少。在这里，我们在涉及热痛管理的模拟临床互动中系统地操纵了提供者的期望，发现患者的主观疼痛体验直接受到提供者对治疗成功的期望的调节，这反映在患者的主观评分、皮肤电导反应和面部表情行为。信念操纵还影响患者在疼痛过程中对提供者同理心的看法，并表现为临床互动过程中提供者面部表情行为的微妙变化。重要的是，这些发现在另外两个独立样本中得到了重复。总之，我们的结果提供了社会传播安慰剂效应的证据，强调了医疗保健提供者的行为和认知心态如何影响临床互动。

更新日期：2019-10-22

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