为考察安慰剂效应在情绪调节中的脑机制,本研究以社会排斥图片为情绪诱发材料诱发社会疼痛,采用经颅磁刺激技术(transcranial magnetic stimulation,TMS)激活背外侧前额叶(dorsolateral prefrontal cortex,DLPFC),并使用事件相关电位观...为考察安慰剂效应在情绪调节中的脑机制,本研究以社会排斥图片为情绪诱发材料诱发社会疼痛,采用经颅磁刺激技术(transcranial magnetic stimulation,TMS)激活背外侧前额叶(dorsolateral prefrontal cortex,DLPFC),并使用事件相关电位观测TMS对安慰剂下调社会疼痛的影响。实验以“TMS组别”(DLPFC组、控制组)为被试间变量,“安慰剂条件”(安慰剂、非安慰剂)为被试内因素。结果发现,DLPFC组(n=50)比控制组(n=50)在安慰剂条件下报告的负性情绪更弱,反映情绪体验强度的晚正成分的波幅也更低,上述组间差异在非安慰剂条件不显著。结果还表明,DLPFC组比控制组更相信安慰剂的效果,愿意花更多的钱来购买安慰剂。此外相关结果发现,由DLPFC激活导致的安慰剂效应增强可有效降低社交焦虑倾向被试的负性社会情绪。本研究是结合脑调控和脑观测技术探讨安慰剂情绪调节脑机制的首次尝试,研究发现不但揭示了DLPFC在安慰剂调节情绪过程中的重要因果作用,还为临床治疗以情绪失调为主要症状的抑郁焦虑等精神障碍患者提供了脑调控干预的可行性脑靶点。展开更多
In a recent publication,Hu et al.(2023)have reported that individuals with high trait anxiety exhibit attentional deficits characterized by reduced inhibition of distractors and delayed attentional selection of target...In a recent publication,Hu et al.(2023)have reported that individuals with high trait anxiety exhibit attentional deficits characterized by reduced inhibition of distractors and delayed attentional selection of targets,indicating impaired top-down attentional control.This commentary underscores their significant contributions to the cognitive theory of anxiety.Based on their findings,we propose a novel training approach called attentional inhibition training(AIT),aimed at improving top-down attentional control to alleviate symptoms of anxiety.Furthermore,we explore the potential application of non-invasive transcranial magnetic stimulation(TMS)for rapidly enhancing attentional control function.展开更多
文摘为考察安慰剂效应在情绪调节中的脑机制,本研究以社会排斥图片为情绪诱发材料诱发社会疼痛,采用经颅磁刺激技术(transcranial magnetic stimulation,TMS)激活背外侧前额叶(dorsolateral prefrontal cortex,DLPFC),并使用事件相关电位观测TMS对安慰剂下调社会疼痛的影响。实验以“TMS组别”(DLPFC组、控制组)为被试间变量,“安慰剂条件”(安慰剂、非安慰剂)为被试内因素。结果发现,DLPFC组(n=50)比控制组(n=50)在安慰剂条件下报告的负性情绪更弱,反映情绪体验强度的晚正成分的波幅也更低,上述组间差异在非安慰剂条件不显著。结果还表明,DLPFC组比控制组更相信安慰剂的效果,愿意花更多的钱来购买安慰剂。此外相关结果发现,由DLPFC激活导致的安慰剂效应增强可有效降低社交焦虑倾向被试的负性社会情绪。本研究是结合脑调控和脑观测技术探讨安慰剂情绪调节脑机制的首次尝试,研究发现不但揭示了DLPFC在安慰剂调节情绪过程中的重要因果作用,还为临床治疗以情绪失调为主要症状的抑郁焦虑等精神障碍患者提供了脑调控干预的可行性脑靶点。
文摘In a recent publication,Hu et al.(2023)have reported that individuals with high trait anxiety exhibit attentional deficits characterized by reduced inhibition of distractors and delayed attentional selection of targets,indicating impaired top-down attentional control.This commentary underscores their significant contributions to the cognitive theory of anxiety.Based on their findings,we propose a novel training approach called attentional inhibition training(AIT),aimed at improving top-down attentional control to alleviate symptoms of anxiety.Furthermore,we explore the potential application of non-invasive transcranial magnetic stimulation(TMS)for rapidly enhancing attentional control function.
基金the National Natural Science Foundation of China(No.31970980 and 31920103009)Guangdong Key Project(No.2018B030335001)+1 种基金the Major Project of National Social Science Foundation(No.20&ZD153)Shenzhen-Hong Kong Institute of Brain Science(No.2021SHIBS0003)。
