杏仁体和海马体的子网络编码了人类情绪的变化
Lowry A Kirkby1, Francisco J Luongo2, Morgan B Lee3
1Department of Psychiatry, University of California, San Francisco, San Francisco, CA 94143, USA; Weill Institute for Neuroscience, University of California, San Francisco, San Francisco, CA 94143, USA; Kavli Institute for Fundamental Neuroscience, University of California, San Francisco, San Francisco, CA 94143, USA; Sloan-Swartz Center for Theoretical Neurobiology, University of California, San Francisco, San Francisco, CA 94143, USA.
研究人员发现人类大脑的特定网络将情绪变化与焦虑联系在一起. 这种桃体-海马子网络
科学领域:
- 神经科学
- 计算精神病学
- 系统神经科学
背景情况:
- 了解调节情绪的大脑网络对于心理健康研究至关重要.
- 自然主义的情绪变化及其神经支并未得到充分理解.
研究的目的:
- 确定与日常情绪波动相关的人类大脑子网络.
- 探索大脑网络动态与焦虑等心理特征之间的关系.
主要方法:
- 使用人类边缘系统的多部位半慢性脑内电脑图 (iEEG).
- 应用机器学习来分析光谱连贯性和识别大脑子网络.
- 与自我报告的情绪和特征焦虑水平相关的子网络变化.
主要成果:
- 在13/21个受试者中发现了一个常见的子网络,其特征是杏仁体和海马体之间的β频率 (13-30 Hz) 连贯性.
- 这种桃体-海马子网络的变化与情绪恶化相关.
- 与没有这种子网络的受试者相比,他们表现出更高的特征焦虑.
结论:
- 一个保存的桃体-海马脑子网络与情绪调节和特征焦虑有关.
- 这项研究展示了一种从复杂的iEEG数据中提取网络行为关系的方法.
- 这一发现提供了情绪变化和焦虑的神经基础的见解.
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