大麻使用障碍的风险是由改变的大脑连接的媒介:一项慢性结核研究
Giovanni Fazio1, Daniele Olivo1, Nadine D Wolf2
1Department of Neuroscience, Padua Neuroscience Center, University of Padua, Padua, Italy.
Addiction biology
|May 6, 2024
概括
患有大麻使用障碍 (CUD) 风险的个人表现出改变的大脑网络动态. 它们的功能连接更为流动和动态,可能会影响大脑功能并增加CUD风险.
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.
- 脑部成像 脑部成像
背景情况:
- 大麻使用障碍 (CUD) 风险背后的大脑机制仍然不清楚.
- 以前的研究表明,CUD中功能连接性 (FC) 发生了变化,但时间变化的模式未得到充分研究.
研究的目的:
- 研究CUD风险人群中的动态功能连接 (dFNC) 模式.
- 为了确定与CUD风险相关的大脑网络变化.
主要方法:
- 休息状态功能磁共振成像 (fMRI) 用于39名危险人群和55名对照人群.
- 动态功能连接 (dFNC) 使用独立组件分析和滑动时间窗口相关性进行了分析.
- 基于CUDIT-R分数的群体状态和元状态指数在各组之间进行了比较.
主要成果:
- 处于危险状态的个体在多个大脑网络中拥有更高的内部网络和更低的网络之间的dFNC状态中花费了更多时间.
- 与对照组相比,有风险的个体表现出更多的元状态,过渡,状态跨度和状态空间中的距离.
- 这些发现表明,在患CUD风险的人群中,大脑网络连接的动态流动性和范围增加.
结论:
- 改变动态大脑网络连接性与CUD风险增加有关.
- 这些动态变化可能会影响大脑网络的稳定性和参与度,导致大脑功能发生改变.
- 识别这些dFNC变化可以使早期干预和CUD风险分层成为可能.
关键词:
大麻大麻大麻大麻大麻大麻大麻大麻长期切除组 (chronnectome) 是一个长期切除组.动态连接性的动态连接性磁共振成像技术的使用超级状态 (meta-states) 是指一个状态.休息状态的休息状态.更多相关视频
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