安慰剂
安慰剂效应（英语：placebo effect，来自拉丁文“placebo”解“我会得安慰”），又名伪药效应、假药效应、代设剂效应；指病人虽然获得无效个治疗，但却“预料”或“相信”治疗有效，而让病患症状得到舒缓个现象。
安慰剂效应于1955年由毕阙博士（Henry K. Beecher）提出，也理解为“非特定效应”（non-specific effects）或受试者期望效应（subject-expectancy effect）。
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