兴奋调节了杏仁体 - 岛屿在自然主义情感电影观看期间的相互连接
Liting Wang1, Xintao Hu1, Yudan Ren2
1School of Automation, Northwestern Polytechnical University, Xi'an, China.
NeuroImage
|August 10, 2023
概括
杏仁核驱动情绪兴奋,在自然主义的电影观看期间调节与岛屿的连接. 这项研究揭示了激发状态背后的动态神经机制.
科学领域:
- 神经科学是一个神经科学.
- 情感科学是一种情感科学.
- 计算精神病学是一种计算精神病学.
背景情况:
- 情绪兴奋涉及皮质和皮质下大脑结构之间的复杂相互作用.
- 杏仁体和胰岛是情绪处理的关键区域,表现出相互连接.
- 以前的研究经常使用静态范式,限制了对动态兴奋机制的理解.
研究的目的:
- 为了研究在动态情绪激发期间有效的杏仁体-岛屿相互作用.
- 使用自然主义范式,探索激发对这些相互作用的调节效应.
- 在现实世界的背景下阐明唤醒的神经基础.
主要方法:
- 在自然主义电影观看期间,功能磁共振成像 (fMRI) 的整合.
- 使用计算情感模型来预测动态兴奋水平.
- 使用一般线性模型 (GLM) 分析和动态因果建模 (DCM) 进行连接分析.
主要成果:
- 杏仁体被确定为接受兴奋输入的主要部位.
- 在杏仁体和胰岛之间的相互连接上观察到兴奋的显著调节效应.
- 动态因果建模揭示了有效连接的特定模式.
结论:
- 杏仁体在驱动情绪兴奋方面发挥着至关重要的作用.
- 兴奋动态调节杏仁体和胰岛之间的有效连接.
- 这项研究提供了对自然环境中兴奋的神经基础的新见解.
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