Taujanskaitė Uršulė, Cahill Emma N, Milton Amy L
Department of Physiology, Development and Neuroscience, University of Cambridge, Cambridge, UK.
Department of Psychology, University of Cambridge, Cambridge, UK.
Curr Opin Pharmacol. 2021 Feb;56:7-12. doi: 10.1016/j.coph.2020.08.007. Epub 2020 Sep 19.
Addiction can be conceptualised as a disorder of maladaptive learning and memory. Therefore, maladaptive drug memories supporting drug-seeking and relapse behaviours may present novel treatment targets for therapeutic approaches based upon reconsolidation-blockade. It is known that different structures within the limbic corticostriatal system contribute differentially to different types of maladaptive drug memories, including pavlovian associations between environmental cues and contexts with the drug high, and instrumental memories underlying drug-seeking. Here, we review the mechanisms underlying drug memory reconsolidation in the amygdala, striatum, and hippocampus, noting similarities and differences, and opportunities for future research.
成瘾可被概念化为一种适应不良学习与记忆的障碍。因此,支持觅药和复发行为的适应不良药物记忆可能为基于重新巩固阻断的治疗方法提供新的治疗靶点。已知边缘皮质纹状体系统内的不同结构对不同类型的适应不良药物记忆有不同贡献,包括环境线索与药物快感的巴甫洛夫关联,以及觅药背后的工具性记忆。在此,我们综述杏仁核、纹状体和海马体中药物记忆重新巩固的潜在机制,指出异同点以及未来研究的机会。