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以10名年龄为19—24岁的男性大学生为被试进行了ERP实验。当被试对特定汉字的心理模板与实际呈现的汉字不匹配时,记录到一峰潜伏期在400ms左右的负走向波——N400。在形、义因素得到控制的条件下,汉字刺激和其心理模板间音因素的匹配与否影响到N400的左右不对称程度。N400和P300部分重叠,受到非语言因素如刺激字比例和判断任务的调制。
Ten male college students aged 19-24 years were enrolled in the ERP trial. When participants did not match the actual template of Chinese characters with the actual Chinese characters, a negative strike wave with a peak latency of about 400 ms was recorded - N400. Under the condition that the shape and righteousness factors are controlled, whether the Chinese characters stimulus and the psychological factors of the mental template match or not affects the degree of left-right asymmetry of N400. N400 and P300 partially overlap, subject to modulation of nonverbal factors such as stimulus word scale and judgment tasks.