指出了传统事件相关电位研究中的突现刺激会诱发外源性成分污染内源性认知成分 ,并导致注意自动俘获 .通过让符号串相对于视线移动来模拟自然阅读 ,发现了字符串中的串首和串尾符号会诱发出外源性成分 ,但串中的准持续呈现字符不会诱发外源性成分 .在此基础上 ,提出了一种去同步平均技术 ,利用该技术能够消除外源性成分干扰和注意的自动俘获 ,直接提取内源性认知成分 Pointed out that the emergent stimuli in traditional event-related potential studies induced exogenous components to contaminate endogenous cognitive components and led to attention to automatic capture. By allowing the string of characters to be shifted relative to the line of sight to simulate natural reading, Trailing and string-tail symbols will induce exogenous components, but the string in the quasi-continuous presentation of characters will not induce exogenous components.On the basis of this, a desynchronization averaging technology, the use of this technology can eliminate exogenous Sexual component interference and attention to the automatic capture, direct extraction of endogenous cognitive components