在压力诱导和后压力休息期间的边缘功能连接性调节皮质醇应激反应和恢复的不同方式
Xiao Luo1, Xiaolin Zhao2, Shuai Wang1
1Faculty of Psychology, Southwest University, Chongqing 400715, China; Key Laboratory of Cognition and Personality, Ministry of Education, Southwest University, Chongqing 400715, China.
Biological psychology
|August 20, 2025
概括
边缘区域的大脑连接差异性调节皮质醇应激反应和恢复. 针对这些不同的途径可能会改善与压力有关的疾病的干预措施.
科学领域:
- 神经科学是一个神经科学.
- 精神病学是一个精神病学.
- 内分泌学 在内分泌学.
背景情况:
- 下垂体-垂体-上腺 (HPA) 轴和皮质醇对于应激适应至关重要.
- 像杏仁体和海马体这样的边缘区域参与调节皮质醇应激反应.
- 边缘区域在皮质醇应激反应与恢复中的不同作用尚未得到充分理解.
研究的目的:
- 在压力和恢复期间调查边缘大脑区域的功能连接 (FC).
- 确定边缘FC如何与皮质醇应激反应和恢复相关.
- 阐明 HPA 轴压力反应和恢复背后的独特的神经生物学机制.
主要方法:
- 采用了种子对Voxel通用心理生理相互作用 (gPPI) 分析.
- 在压力诱导和后压力休息期间检查了功能连接 (FC).
- 分析了边缘FC和皮质醇水平 (反应性和恢复性) 之间的关联.
主要成果:
- 在压力诱导过程中,底侧杏仁体 (BLA) 和中枢杏仁体 (CMA) 的连接性与皮质醇应激反应有关.
- 休息期间与前额叶皮层 (PFC) 的BLA,但不是CMA,连接与皮质激素的压力恢复有关.
- 休息期间的海马-PFC连接也影响了皮质醇应激恢复,与BLA-PFC效应不同.
结论:
- 边缘功能连接显示了调节皮质醇应激反应和恢复的独特模式.
- BLA和CMA在压力反应中起着不同的作用,而BLA和海马则参与恢复.
- 调查结果强调需要针对性干预措施,针对急性压力反应和与压力有关的疾病的单独恢复.
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