急性酒精摄入扰乱了健康社会饮酒者休息状态网络拓
Leah A Biessenberger1, Adriana K Cushnie1, Bethany Stennett-Blackmon2
1University of Minnesota, Department of Anesthesiology, Minnesota Alcohol and Pain Laboratory, USA.
Drug and alcohol dependence
|November 29, 2025
概括
酒精消费改变了大脑网络结构,影响了全球和当地大脑的效率. 这些网络变化与醉酒者的感受相关,揭示了酒精如何影响主观体验.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 系统神经科学 系统神经科学
背景情况:
- 众所周知,饮酒会损害认知和感官功能.
- 酒精对皮质网络和个体大脑区域结构组织的确切影响仍然不完全理解.
研究的目的:
- 通过图形理论分析,研究急性酒精管理对大脑网络拓学的影响.
- 探索酒精诱导的网络变化和主观中毒水平之间的关系.
主要方法:
- 这是一项双盲,安慰剂控制的研究,涉及107名健康成年人,他们消费了酒精 (目标BrAC0.08g/dL) 或安慰剂.
- 休息状态功能磁共振成像 (fMRI) 数据是在消费后30分钟获得的.
- 图形理论分析应用于106个有趣的大脑区域 (ROI) 的网络,以评估网络属性.
主要成果:
- 酒精消费导致头区域的全球效率下降,额叶和皮层的全球效率增加.
- 局部效率,节点程度和聚类系数在整个网络和特定的额头和时间区域增加.
- 全球效率下降和当地效率/聚类增加与更高的主观中毒评级有关.
结论:
- 急性酒精摄入显着改变了整体大脑网络的地形,影响了不同皮层区域的效率和连接.
- 这些酒精诱导的网络变化为理解对酒精主观反应的个体差异提供了神经基础.
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