在服用d-安非他胺,LSD和MDMA后,thalamocortical相互作用的有效连接性
Mihai Avram1, Felix Müller2, Katrin H Preller3
1Translational Psychiatry, Department of Psychiatry and Psychotherapy, University of Lübeck, Lübeck, Germany; Center of Brain, Behavior, and Metabolism, University of Lübeck, Lübeck, Germany.
概括
像LSD和MDMA这样的迷幻药物改变了大脑的连接,影响了大脑丘脑和皮质之间的信息流动. 这项研究阐明了这些化合物如何影响神经网络,从而促进了心理医学的理解.
科学领域:
- 神经科学是一个神经科学.
- 心理药理学 心理药理学
- 脑部成像 脑部成像
背景情况:
- 越来越多的人对用于精神治疗的迷幻药感兴趣,需要了解它们的神经机制.
- 研究大脑对血清激素化合物的反应对于治疗的发展至关重要.
研究的目的:
- 为了绘制物质诱导的有效大脑连接的变化.
- 为了区分 lysergic acid diethylamide (LSD),3,4-methylenedioxymethamphetamine (MDMA) 和 d-amphetamine 对 thalamocortical 相互作用的影响.
主要方法:
- 双盲,安慰剂控制,交叉研究与25名健康参与者.
- 使用了LSD,MDMA和d-安非他胺.
- 利用光谱动态因果建模与静态fMRI数据来分析thalamus和皮层区域之间的有效连接 (unimodal与transmodal).
主要成果:
- 所有的物质都增加了thalamus-to-unimodal皮层的连接性,这表明了增强的自下而上的信息流.
- 与单模皮层相比,安非他胺对lamus-to-transmodal皮层连接有相反的影响.
- LSD独特地增加了thalamus连接到unimodal和transmodal皮层,扰乱了层次大脑组织.
结论:
- 这些发现有助于我们更好地理解迷幻药对大脑的影响.
- 结果完善了迷幻效应的神经生物学模型.
- 提供了对不同神经递质系统调节的甲状腺皮质和皮质甲状腺皮质相互作用的见解.
关键词:
动态因果建模 动态因果建模有效的连接性 有效的连接性这是一种LSD,一种LSD.这是MDMA,MDMA.迷幻药物 迷幻药物是一种精神药物.跨模态皮层的皮层.单模体皮质 (unimodal cortex) 是一种单模体皮质.d-安非他氨酸的使用情况.更多相关视频
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