预期控制厌恶刺激是由内侧前额叶皮层介导的:一项健康成年人的 fMRI 研究。
Anticipating control over aversive stimuli is mediated by the medial prefrontal cortex: An fMRI study with healthy adults.
机构信息
Department of Psychiatry, Psychotherapy, and Psychosomatics, University Hospital of Psychiatry Zurich, Zurich, Switzerland.
Psychological Institute, Zurich University of Applied Sciences, Zurich, Switzerland.
出版信息
Hum Brain Mapp. 2021 Sep;42(13):4327-4335. doi: 10.1002/hbm.25549. Epub 2021 Jun 9.
The anticipation of control over aversive events in life is relevant for our mental health. Insights on the underlying neural mechanisms remain limited. We developed a new functional magnetic resonance imaging (fMRI) task that uses auditory stimuli to explore the neural correlates of (1) the anticipation of control over aversion and (2) the processing of aversion. In a sample of 25 healthy adults, we observed increased neural activation in the medial prefrontal cortex (ventromedial prefrontal cortex and rostral anterior cingulate cortex), other brain areas relevant for reward anticipation (ventral striatum, brainstem [ventral tegmental area], midcingulate cortex), and the posterior cingulate cortex when they anticipated control over aversion compared with anticipating no control (1). The processing of aversive sounds compared to neutral sounds (2) was associated with increased neural activation in the bilateral posterior insula. Our findings provide evidence for the important role of medial prefrontal regions in control anticipation and highlight the relevance of conceiving the neural mechanisms involved within a reward-based framework.
对生活中控制厌恶事件的预期与我们的心理健康有关。然而,对于潜在的神经机制的了解仍然有限。我们开发了一种新的功能磁共振成像 (fMRI) 任务,该任务使用听觉刺激来探索(1)对控制厌恶的预期和(2)对厌恶的处理的神经相关性。在 25 名健康成年人的样本中,与预期无控制相比,当他们预期控制厌恶时,我们观察到内侧前额叶皮层(腹内侧前额叶皮层和额前扣带皮层)、其他与奖励预期相关的大脑区域(腹侧纹状体、脑干[腹侧被盖区]、中扣带皮层)和后扣带皮层的神经激活增加 (1)。与中性声音相比,处理厌恶声音(2)与双侧后岛叶的神经激活增加有关。我们的发现为内侧前额叶区域在控制预期中的重要作用提供了证据,并强调了在基于奖励的框架内构想所涉及的神经机制的相关性。