First, basic knowledge and Physiological mechanism of Electroencephalogram (EEG) and Event Related potential (ERP) and how they reflect the cognitive disorder are introduced.

• 论文首先介绍了脑电信号（Electroencephalogram，EEG）和事件相关电位（Event-Related Potetial，ERP）的基本概念和产生机制，并对其与认知功能障碍之间的关系进行了讨论。