避孕药治疗需要对负面输入进行资源依赖的下调
Arasch Mostauli1, Jonas Rauh1, Matthias Gamer2
1Department of Systems Neuroscience, University Medical Centre Hamburg-Eppendorf, Martinistrasse 52, D-20246, Hamburg, Germany.
Scientific reports
|March 18, 2025
概括
积极的期望可以提升情绪,减少恐惧的分心,特别是有足够的认知资源. 这种受注意力控制影响的安慰剂效应强调了认知能力在情绪调节中的作用.
科学领域:
- 神经科学是一个神经科学.
- 心理学 心理学 心理学
- 精神病学是一个精神病学.
背景情况:
- 抗抑郁药的临床试验显示显著的安慰剂效应,高达80%与活性治疗相比.
- 将认知控制与情感安慰剂效应联系在一起的证据有限.
- 大型抑郁症与增强的负面情绪处理和减少的认知控制有关.
研究的目的:
- 调查认知资源如何影响情绪处理中的安慰剂效应.
- 检查期望诱导的情绪改善的行为和神经机制.
- 评估注意力控制在安慰剂反应中的作用.
主要方法:
- 一个交叉功能磁共振成像 (fMRI) 研究,涉及49名健康志愿者.
- 通过安慰剂催产素鼻喷雾和口头指令诱导的积极期望.
- 空间暗示任务测量对情感面孔的注意力,以及评估一般注意力控制能力.
主要成果:
- 安慰剂治疗改善了情绪,减少了对恐惧面孔的分心能力.
- 当有更多的注意力资源可用时,这些效应更加明显.
- fMRI数据显示了前额外边缘网络激活和合的变化,表明了自上而下的调节.
- 神经行为效应与个人的注意力控制能力相关.
结论:
- 认知资源对于口头指示的安慰剂效应至关重要.
- 期望可以通过前额外边缘网络的自上而下的调节来调节情绪处理.
- 研究结果表明,对于治疗严重抑郁症有潜在的相关性,考虑到其与认知控制减少的重叠.
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