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本文利用三种视觉符号编排的刺激序列，记录了９５名正常人的视觉ＥＲＰ，报道了Ｆｚ、Ｐｚ点Ｎ２、Ｐ３波幅和潜伏期的正常值及Ｎ２、Ｐ３的影响因素。结果表明：该刺激序列可引出清晰、稳定的ＥＲＰ波形；Ｐ３波幅与任务和部位有关，靶Ｐ３波幅大于非靶Ｐ３，靶Ｐ３于Ｐｚ点波幅大于Ｆｚ，非靶Ｐ３在Ｆｚ、Ｐｚ点间波幅无明显差异；Ｎ２波幅与任务无关，靶与非靶之间Ｎ２波幅无差异，而与部位有关，Ｆｚ点波幅大于Ｐｚ点；Ｎ２、Ｐ３受年龄的影响．中老年人Ｎ２、Ｐ３潜伏期长于青年人，而波幅中老年人较青年人低。
In this paper, visual sequences of three visual arrangements were used to record the visual ERPs of 95 normal subjects. The normalized amplitude and latency of N2, P3 and the influencing factors of N2 and P3 were reported. The results showed that: the stimulation sequence can lead to a clear and stable ERP waveform; the amplitude of P3 is related to the task and location, the amplitude of target P3 is greater than that of non-target P3, the amplitude of target P3 is greater than Fz at Pz, the amplitude of non-target P3 is between Fz and Pz There was no difference between N2 amplitude and task. There was no difference in N2 amplitude between target and non-target, but it was related to site. Fz amplitude was greater than Pz. N2 and P3 were affected by age. Middle and old N2, P3 latency is longer than that of young people, while the amplitude of the elderly is lower than that of young people.