关于安慰剂效应的研究

A Review on the Placebo Effect

安慰剂效应是指由安慰剂所引起的可观察的行为。本文讨论了安慰剂效应的确切定义,安慰剂效应的强度差异,以及临床背景、患者的人格特质、安慰剂的特征和医患关系等因素对安慰剂效应的影响。目前研究者普遍认为安慰剂效应通过期待和条件作用产生。近期的一个研究热点是疼痛和帕金森氏症背景下期待引起的安慰剂效应的神经机制。

The placebo effect refers to all the observable behaviors caused by placebo. This review discusses the exact definition of the placebo effect, the difference of the intensity of the placebo effect, and how the clinical background, personality traits of patients, property of placebo, and doctor-patient relationship influence the placebo effect. Now most researchers believe that placebo effect is induced by expectation and conditioning. Recently, one focus of placebo effect research is the neurological mechanism of the expectation-induced placebo effect in pain and Parkinson＇s disease.