大脑电刺激在听觉语言加工研究中的应用

Application of electrical brain stimulation in the auditory language processing

大脑电刺激是历史悠久但近年来才广泛应用在人类被试上的实验技术。通过对颅内刺激位点进行电刺激,并分析引发的暂时性行为功能变化和记录位点的电位活动,大脑电刺激技术可以揭示认知加工过程中脑区内的功能作用与脑区间的有效连接。通过对听觉语言加工过程相关的丘脑、听觉皮层、高级语言皮层进行电刺激,现有研究发现了各个脑区的不同功能特点以及不同脑区间的信息传递机制,为进一步探索听觉语言加工的神经机制提供了新的视角。

Electrical brain stimulation is an experimental technique with a long history,but only in recent years has it been widely used on human subjects.By electrically stimulating intracranial stimulation sites and analyzing elicited transient behavioral functional changes and electrical brain activity at the recording sites,electrical brain stimulation techniques can reveal functional roles within brain regions and effective connections between brain regions during cognitive processing.For auditory language processing,by stimulating thalamus,auditory cortex,and higher language area,existing research has revealed the different functional roles of each brain region and the information transfer mechanism between different brain regions,providing a new perspective for further exploring the neural mechanisms of auditory language processing.