酒精使用障碍与静止状态期间前中心阶段幅度合强度的增加有关
C D Richard1, B Porjesz1, J L Meyers1
1SUNY Downstate Health Sciences University, Department of Psychiatry and Behavioral Sciences, Brooklyn, NY 11203-2098 USA.
bioRxiv : the preprint server for biology
|June 4, 2025
概括
这项研究揭示了严重的酒精使用障碍 (AUD) 与大脑连接的改变有关,特别是在α-和β-频率中增加了阶段幅度合 (PAC). 这些发现强调了PAC作为AUD的潜在生物标志物.
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.
- 遗传学 遗传学 是一个
背景情况:
- 通过fMRI和EEG连贯度测量的大脑功能连接的改变是酒精使用障碍 (AUD) 的特征.
- 阶段振幅合 (PAC) 是功能连接的一个新兴机制,但它在AUD开发中的作用仍然未被探索.
研究的目的:
- 通过比较严重AUD和不受影响的对照对象的PAC强度来研究PAC在AUD发展中的作用.
- 为了评估PAC和AUD状态之间的关联,在静止状态下使用前脑电图 (EEG) 信号.
主要方法:
- 在严重的AUD参与者 (≥6个DSM-5症状) 中比较了PAC强度和来自协作研究酒遗传学 (COGA) 队列的年龄匹配对照.
- 在25-50岁的参与者中,在休息状态 (闭眼) 中利用了额头EEG信号 (中额头通道FZ).
- 通过使用高分辨率的共振图 (0.1-13 Hz) 和振幅频率 (4-50 Hz) 的高分辨率共振图来计算PAC,分析了EEG记录的前两分钟的平均共振图.
主要成果:
- 严重的AUD与男性和女性的α-玛PAC显著增加,与对照组相比.
- 患有AUD的男性表现出达-玛PAC的广泛增加,而女性表现出相邻子域的限制性增加和减少.
- 在AUD组中,对于AUD组中两种性别的theta-alpha和alpha-beta频率对也观察到增加的PAC.
结论:
- 在休息状态下,在中间前额叶皮层网络中的异常超连接性是由AUD相关的PAC变化在α-马,β-马,β-马和β-马域中表明的.
- PAC变化代表了一种新的神经生理学标记,可能有助于理解和诊断AUD.
- 这些发现强调了探索PAC作为AUD中大脑功能障碍背后的机制的重要性.
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