预测大脑上的风暴:凯胺抗抑郁药效应的神经计算解释
Hugo Bottemanne1, Lucie Berkovitch2, Christophe Gauld3
1Paris Brain Institute - Institut du Cerveau (ICM), UMR 7225 / UMRS 1127, Sorbonne University / CNRS / INSERM, Paris, France; Sorbonne University, Department of Philosophy, Science Norm Democracy Research Unit, UMR, 8011, Paris, France; Sorbonne University, Department of Psychiatry, Pitié-Salpêtrière Hospital, Assistance Publique-Hôpitaux de Paris (AP-HP), Paris, France.
Neuroscience and biobehavioral reviews
|October 4, 2023
概括
胺通过破坏大脑的预测处理来提供快速的抗抑郁作用,从而导致预测错误的增加. 这种机制解释了短期的抗抑郁药和分离症状,以及通过神经可塑性的长期影响.
科学领域:
- 神经科学是一个神经科学.
- 计算精神病学是一种计算精神病学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 胺,一种N-甲基-D-酸盐受体 (NMDAr) 抗剂,在重大抑郁障碍 (MDD) 中表现有前途.
- 与传统治疗不同,胺在几个小时内提供了快速的抗抑郁作用.
- 胺也会诱发短暂的分离症状,因此需要一个模型来解释这些不同的效应及其时间表.
研究的目的:
- 提出凯胺抗抑郁和离散作用的神经计算模型.
- 为了解释胺素快速和长时间抗抑郁作用的独特时间框架.
- 在预测处理 (PP) 框架内整合胺的作用.
主要方法:
- 使用行为,神经生理学和计算建模方法对经验研究进行审查和综合.
- 预测处理 (PP) 理论的应用来解释胺的作用机制.
- 对胺酸对N-甲基-D-酸盐 (NMDA) 和α-氨基-3-基-5-甲基-4-异醇-酸 (AMPA) 受体的影响的分析.
主要成果:
- 氨酸通过阻断NMDAr,增强谷氨酸释放和预测错误 (PE),导致过渡性分离症状和快速抗抑郁作用,从而损害了自上而下的预测.
- 胺激活AMPAr,增强神经延迟可塑性,并导致长时间抗抑郁药效应,长达7天.
- 这些PP障碍创造了精神灵活性的窗口,潜在地增强了心理治疗.
结论:
- 胺对预测处理的双重作用 - - 破坏快速效果的预测,增强长期效果的可塑性 - - 是其抗抑郁特性的基础.
- 拟议的神经计算模型为了解胺胺的独特治疗时间表提供了一个框架.
- 这一框架可以指导未来对快速起作用的抗抑郁药物及其与心理治疗的结合的研究.
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