[Progress in neural network mechanism of tinnitus using functional magnetic resonance imaging].

Tinnitus refers to the perception of abnormal sound in the absence of external sound stimulation. It can have an impact on a person's mood, memory, attention, and mental state, although the mechanism of tinnitus is still unclear. In recent years, the research on the central neural mechanism of tinnitus has attracted the attention of scholars.Functional magnetic resonance imaging （fMRI）,as an effective imaging technology, has been actively employed in this field. This paper provides a systematic summary of studies on the central neural mechanism of tinnitus by fMRI in recent years,revealed the changes of functional connections among tinnitus-related neural networks,such as auditory network,limbic system,default mode network and salience network. The central neural mechanism of tinnitus involves multiple networks that interact with each other. By understanding this mechanism, we hope to develop more targeted prevention and treatment strategies to help patients alleviate long-term tinnitus.摘要: 耳鸣是在没有外界声刺激的情况下的非正常声音感知，会影响一个人的情绪、记忆、注意力以及精神心理状态，目前对于耳鸣的机制尚不明确。近年耳鸣中枢神经机制的研究引起学者的重视，功能性磁共振成像（functional magnetic resonance imaging，fMRI）作为一种有效的影像学技术积极应用于本方面研究。本文将近几年应用fMRI对耳鸣中枢神经网络的相关研究进行系统总结，揭示了耳鸣相关神经网络（听觉网络、边缘网络、默认模式网络、注意力网络等）之间功能连接的改变。耳鸣的中枢神经机制涉及多个网络，各个网络间相互影响，笔者希望通过了解耳鸣的中枢机制来对耳鸣进行较有针对性的预防和治疗，从而帮助患者摆脱长期耳鸣的困扰。.