汉字认知加工–特征调控的ERP研究

An ERP Study on Cognitive Processing-Feature Regulation of Chinese Characters

目的:探讨汉字进行特征调控对汉字早期认知加工的影响。方法:通过调控汉字笔画的空间结构布局,对30名大学生使用ERP记录并观察N170的波幅及潜伏期的变化情况。结果:1) 汉字特征调控的左右偏移的振幅低于正常汉字的振幅,左右偏移的潜伏期大于正常汉字的潜伏期,且左右偏移空间布局调控对汉字识别的影响比上下偏移空间布局调控对汉字的影响显著;2) 右侧脑区N170的振幅刺激比左侧脑区更强识别更迅速。结论:汉字认知加工确实受汉字结构特征的影响;汉字识别脑区引起类似于面孔的右半球偏侧化。

Objective: To explore the impact of feature regulation on early cognitive processing of Chinese characters. Method: By adjusting the spatial structure layout of Chinese character strokes, ERP was used to record and observe the changes in amplitude and latency of N170 among 30 college students. Result: 1) The amplitude of left and right deviation regulated by Chinese character features is lower than that of normal Chinese characters, and the latency of left and right deviation is greater than that of normal Chinese characters. Moreover, the influence of spatial layout regulation of left and right deviation on Chinese character recognition is more significant than that of spatial layout regulation of up and down deviation;2) the amplitude stimulation of N170 in the right brain area is stronger and faster in recognition than in the left brain area. Conclusion: Cognitive processing of Chinese characters is indeed influenced by the structural characteristics of Chinese characters;the recognition of Chinese characters in the brain area causes a right hemisphere lateralization similar to that of a face.