对低剂量LSD的神经反应的个体间变异性
Nadia R P W Hutten1, Conny W E M Quaedflieg1, Natasha L Mason1
1Department of Neuropsychology & Psychopharmacology, Faculty of Psychology & Neuroscience, Maastricht University, Maastricht, the Netherlands.
Translational psychiatry
|July 15, 2024
概括
低剂量的LSD会影响唤醒,注意力和记忆力,其影响因个体的基线认知状态而有所不同. 这些LSD诱导的变化,包括增强的处理,持续治疗后的一周.
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
背景情况:
- 像LSD这样的微剂量迷幻药在心理健康,认知和情绪提升方面很受欢迎.
- 以前的安慰剂对照研究表明,益处有限,可能是由于个体反应的差异.
- 了解基线认知状态如何影响迷幻效应至关重要.
研究的目的:
- 为了调查低剂量LSD对唤醒,注意力和记忆的影响是否受到个体基线认知状态的调节.
- 为了探索与重复低剂量LSD管理相关的神经生理变化.
- 为了确定LSD诱导的效应是否在治疗期间后仍然存在.
主要方法:
- 53名健康参与者在2周内重复服用15微克LSD或安慰剂剂.
- 评估了神经生理学措施,包括静止状态EEG,听觉奇怪任务和视觉LTP范式.
- 评估发生在基线,在剂量治疗期间,并在1周的随访期间.
主要成果:
- LSD降低了静止状态EEG功率 (delta,theta,alpha) 并增强了注意前处理,表明刺激作用.
- 通过最终剂量,LSD使视觉长期强化 (LTP) 诱导变得模糊.
- 刺激作用在基线兴奋和注意力较低的个体中更为明显;抑制作用在高记忆能力者中最为强烈.
- 脑电图和处理变化持续到1周的随访.
结论:
- 对低剂量LSD的急性反应取决于状态,受个人基线认知功能的影响.
- 激素可能会诱导持续超过治疗期的神经适应,这是持续的神经生理变化所证明的.
- 研究结果表明,为了优化迷幻微剂量结果,可能需要个性化方法.
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