概率框架对副作用预期和nocebo副作用的影响:用安慰剂止痛乳液进行的三项实验研究的结果
Tobias Kube1,2,3, John M Kelley3,4, Arthur J Barsky3,5
1Department of Clinical Psychology and Experimental Psychopathology, Goethe University Frankfurt, Frankfurt, Germany.
British journal of health psychology
|January 27, 2026
概括
设定副作用的可能性会影响预期,但不会影响实际发生. 这项研究发现,在安慰剂试验中,像这样的nocebo反应并不能通过不同的概率框架可靠地诱导.
科学领域:
- 心理学 心理学 心理学
- 医学研究 医学研究
- 行为科学 行为科学
背景情况:
- 负面预期导致不良结果的nocebo效应是临床试验中的一个重要因素.
- 了解信息框架如何影响nocebo反应对于患者护理和研究设计至关重要.
研究的目的:
- 调查不同的副作用概率框架是否会影响它们在对安慰剂止痛药的反应中发生.
- 检查负面与正面框架和频率与百分比格式在nocebo副作用预期和经验中的作用.
主要方法:
- 用非临床样本进行了三项独立的实验研究.
- 研究1评估了不同框架条件下的副作用预期.
- 研究2和3检查了的发生作为nocebo副作用使用安慰剂止痛奶油和热痛范式.
主要成果:
- 负框架 (例如,1%的发生率) 和频率格式 (例如,100分之一) 导致与积极框架和百分比相比,更高的副作用预期.
- 然而,在研究2和研究3中,的实际报告在框架条件之间没有显著差异.
- 即使增加了可能性或与对照组相比,Nocebo反应,特别是,也没有成功诱导.
结论:
- 该研究未能诱导作为nocebo反应,突出了建立这种效应的实验模型的挑战.
- 虽然概率框架影响预期,但其对实际nocebo副作用经验的影响仍然很难通过实验来确定.
- 需要进一步的研究来完善研究nocebo效应及其与信息框架的关系的方法.
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