The transferable placebo effect from pain to emotion: Changes in behavior and EEG activity

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	The transferable placebo effect from pain to emotion: Changes in behavior and EEG activity
	Zhang, Wencai1,2 ; Luo, Jing1,3 ; J. Luo
摘要	Past studies indicate that the placebo expectation established by analgesic treatment significantly relieves pain perception, while ataractic treatment significantly alleviates unpleasant arousal evoked by negative picture processing. But it is unclear whether the placebo effect can be transferred from one domain to the other, namely from pain to emotion. In this study we led participants to believe in the analgesic effect of magnetic treatment equipment (the placebo) by secretly reducing the intensity of pain stimulus. Then, we examined if this placebo could significantly alter participants' negative affect evoked by watching unpleasant pictures. Our results indicated a significant transferable placebo effect that alleviated negative feelings. EEG recordings showed the transferable placebo treatment induced decreased P2 amplitude and increased N2 amplitude, with source location near the posterior cingulate.; Past studies indicate that the placebo expectation established by analgesic treatment significantly relieves pain perception, while ataractic treatment significantly alleviates unpleasant arousal evoked by negative picture processing. But it is unclear whether the placebo effect can be transferred from one domain to the other, namely from pain to emotion. In this study we led participants to believe in the analgesic effect of magnetic treatment equipment (the placebo) by secretly reducing the intensity of pain stimulus. Then, we examined if this placebo could significantly alter participants' negative affect evoked by watching unpleasant pictures. Our results indicated a significant transferable placebo effect that alleviated negative feelings. EEG recordings showed the transferable placebo treatment induced decreased P2 amplitude and increased N2 amplitude, with source location near the posterior cingulate.
关键词	Transferable placebo effect Pain Negative emotion Expectation Event-related potentials
学科领域	认知神经科学
	2009-05-01
语种	英语
发表期刊	PSYCHOPHYSIOLOGY
ISSN	0048-5772
卷号	46 期号:3 页码:626-634
期刊论文类型	Article
收录类别	SCI ; SSCI
WOS记录号	WOS:000265008200020
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.psych.ac.cn/handle/311026/5811
专题	中国科学院心理研究所回溯数据库(1956-2010)
通讯作者	J. Luo
作者单位	1.Chinese Acad Sci, Inst Psychol, Key Lab Mental Hlth, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100101, Peoples R China 3.Capital Normal Univ, Learning & Cognit Lab, Beijing, Peoples R China
第一作者单位	中国科学院心理健康重点实验室
推荐引用方式 GB/T 7714	Zhang, Wencai,Luo, Jing,J. Luo. The transferable placebo effect from pain to emotion: Changes in behavior and EEG activity[J]. PSYCHOPHYSIOLOGY,2009,46(3):626-634.
APA	Zhang, Wencai,Luo, Jing,&J. Luo.(2009).The transferable placebo effect from pain to emotion: Changes in behavior and EEG activity.PSYCHOPHYSIOLOGY,46(3),626-634.
MLA	Zhang, Wencai,et al."The transferable placebo effect from pain to emotion: Changes in behavior and EEG activity".PSYCHOPHYSIOLOGY 46.3(2009):626-634.

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