Department of Psychology, Zhejiang Sci-Tech University, Hangzhou.
Department of Psychology, Virginia Commonwealth University, Richmond, Virginia.
J Nerv Ment Dis. 2021 Nov 1;209(11):796-801. doi: 10.1097/NMD.0000000000001388.
Understanding the underlying mechanisms of mindfulness has been a hot topic in recent years, not only in clinical fields but also in neuroscience. Most neuroimaging findings demonstrate that critical brain regions involved in mindfulness are responsible for cognitive functions and mental states. However, the brain is a complex system operating via multiple circuits and networks, rather than isolated brain regions solely responsible for specific functions. Mindfulness-based treatments for attention deficit hyperactivity disorder (ADHD) have emerged as promising adjunctive or alternative intervention approaches. We focus on four key brain circuits associated with mindfulness practices and effects on symptoms of ADHD and its cognitive dysfunction, including executive attention circuit, sustained attention circuit, impulsivity circuit, and hyperactivity circuit. We also expand our discussion to identify three key brain networks associated with mindfulness practices, including central executive network, default mode network, and salience network. We conclude by suggesting that more research efforts need to be devoted into identifying putative neuropsychological mechanisms of mindfulness on how it alleviates ADHD symptoms.
近年来,对正念潜在机制的理解不仅在临床领域,而且在神经科学领域都是一个热门话题。大多数神经影像学研究结果表明,正念所涉及的关键大脑区域负责认知功能和心理状态。然而,大脑是一个通过多个回路和网络运行的复杂系统,而不仅仅是孤立的大脑区域负责特定的功能。基于正念的治疗方法注意力缺陷多动障碍(ADHD)已经成为一种很有前途的辅助或替代干预方法。我们重点介绍了与正念练习相关的四个关键大脑回路及其对 ADHD 症状和认知功能障碍的影响,包括执行注意回路、持续注意回路、冲动回路和多动回路。我们还将讨论扩展到与正念练习相关的三个关键大脑网络,包括中央执行网络、默认模式网络和突显网络。最后,我们建议需要投入更多的研究努力来确定正念减轻 ADHD 症状的潜在神经心理学机制。