A follow-up fMRI study of a transferable placebo anxiolytic effect.
A follow-up fMRI study of a transferable placebo anxiolytic effect.
复制标题
可转移安慰剂抗焦虑作用的后续功能磁共振成像研究。
DOI:
10.1111/j.1469-8986.2011.01178.x
复制
发表时间:
2011-08
期刊:
影响因子:
3.7
通讯作者:
Jing Luo
中科院分区:
文献类型:
--
作者:
Weicai Zhang;Shaozhen Qin;Jianyou Guo;Jing Luo
Our previous study showed that placebo expectations can develop in a transferable manner; for example, a placebo expectation developed within an analgesic experience may lead to reduced anxiety. Considering that activities in such emotion-responsive areas as the amygdala and insula can be detected through functional magnetic resonance imaging (fMRI), we used fMRI to further study the transferable placebo anxiolytic effect. A main-effect analysis showed that activity in the amygdala and insula was reduced in the placebo condition, whereas an interaction analysis showed activity in the two regions was selectively attenuated in the placebo condition when unpleasant pictures were viewed. We also observed greater activity in the subgenual anterior cingulate cortex under placebo conditions when either emotionally negative or neutral pictures were viewed. These data suggest that the anxiety-relieving placebo effect arose from a reward-related response underpinned by the participants' expectations.
登录
查看更多内容
影响因子:
7.4
作者:
P. Rainville;G. Duncan
通讯作者:
P. Rainville;G. Duncan
影响因子:
5.3
作者:
Kong, J;Gollub, RL;Kaptchuk, TJ
通讯作者:
Kaptchuk, TJ
影响因子:
2.6
作者:
Lane, RD;Reiman, EM;Schwartz, GE
通讯作者:
Schwartz, GE
影响因子:
5.3
作者:
Beauregard, M;Lévesque, J;Bourgouin, P
通讯作者:
Bourgouin, P
影响因子:
10.6
作者:
C. I. Wright;B. Martis;Katherine McMullin;L. Shin;S. Rauch
通讯作者:
C. I. Wright;B. Martis;Katherine McMullin;L. Shin;S. Rauch