摘要
事件相关电位用于测谎是近几年才新发展起来的测谎方法。本实验以熟悉和陌生人照片视觉事件相关电位进行测谎研究，通过控制被试者实验时心理条件观察注意，有无任务对测谎准确性的影响。结果说明以人物照片为刺激，利用Ｐ３进行测谎是可行的，但被测者心理因素会影响其准确性，分散注意力时阳性率下降。
Event-related potential (ERP)used in lie detection is a new method which was developed in recent years. Lie detection was studied by means of visual eventrelated potentials induced by photoes of familiar person and stranger.The effects of attention,task or non-task on the accuracy of lie detection was studied by controlling the subject's psychological condition. The results suggested that lie detection by P3 be effective as person photoes are used as stimuiations,but the accuracy would be influenced by the psvchological factors.The positive rate decreased as the attention dispersed.
