本文介绍了一种基于信息理论的事件相关电位(ERP)的分析方法。采用传递信息法对由词汇引起的头皮诱发电位的信息量进行测定,并将其描述为传递信息图,这种传递信息图可用来揭示刺激后的ERP的时间间隔,这恰恰反映了相应词组的信息传递。头皮诱发电位的输入刺激为四组词汇,每组由8个词汇构成,其中两组词汇是描述入愉快与失望的词组,另两组词汇则分别和描述病人症状的词汇和与病人有关的心理精神方面的词汇。所有的受试者均是具有病态恐惧、憎恶或悲痛、忧伤反应的病人。为研究ERP,传统的方法是着眼于EPR的正负峰位(如P300),为了识别峰位还需进行简单的叠加处理,已有的准则均存在着一些困难,使得各词组的ERP难于识别与分类。本文给出的传递信息图虽然也并没揭示出ERP中各词汇 This article presents an analysis of event-related potentials (ERPs) based on information theory. Transmission information method was used to measure the quantity of scalp-evoked potentials caused by lexical words, and it was described as transmission information map, which can be used to reveal the ERP interval after stimulus, which exactly reflects the Information transfer. Scalp evoked potentials are stimulated by four sets of words, each consisting of eight words, two of which are phrases that describe happiness and disappointment, and the other two are words that relate to the patient’s symptoms and the patient-related psychology Spiritual vocabulary. All subjects were patients with morbid fear, disgust or grief, sad reaction. In order to study ERP, the traditional method is to focus on the positive and negative peak positions of EPR (such as P300). In order to identify the peak position, simple overlay processing is needed. Some existing rules have some difficulties, which makes the ERP of each phrase difficult to identify With classification. Although the information presented in this article did not reveal the ERP vocabulary