刺激性肠综合征中社会排斥的前额调节受损
Psychotherapy and psychosomatics
|February 26, 2026
概括
患有刺激性肠综合征 (IBS) 的患者表现出对社会拒绝的改变大脑反应,将前额叶皮层功能障碍与内脏疼痛和压力联系起来.
科学领域:
- 神经科学是一个神经科学.
- 胃肠病学 胃肠病学
- 心理学 心理学 心理学
背景情况:
- 心理社会压力加剧了刺激性肠综合征 (IBS) 的症状.
- 在IBS中,将社会拒绝与内脏疼痛联系起来的神经机制尚不清楚.
- 在社交压力期间IBS中前额叶皮层调节是研究的一个关键领域.
研究的目的:
- 研究IBS患者对社会拒绝的行为和神经反应.
- 检查前额调节在将社会排斥与IBS中的内脏疼痛联系起来方面的作用.
- 在IBS中识别情绪困扰和疼痛严重程度的神经相关性.
主要方法:
- 使用了功能磁共振成像 (fMRI).
- 采用了一个涉及包容,排斥和重新包容阶段的社会排斥范式.
- 35名IBS患者和36名健康对照人群 (HCs) 在行为和神经反应方面进行了比较.
主要成果:
- 与HC相比,IBS患者在社会排斥和重新纳入期间报告腹部疼痛增加和长时间的痛苦.
- 在IBS患者中观察到,dorsomedial前额叶皮层 (dmPFC) 和左下额叶环 (LIFG) 的活化减少.
- 在IBS患者中,在前额区域 (LIFG-dmPFC) 和前额和边缘区域 (dmPFC-杏仁体) 之间发现了功能连接的改变.
结论:
- 在社交排斥期间,IBS患者表现出前额前部调节网络的参与和协调发生变化.
- 这些发现提供了关于心理社会压力的神经基础的见解,有助于IBS的慢性疼痛.
- 在IBS中,功能障碍的前额外边缘合与增加的痛苦和长期的腹痛有关.
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