ISSN 0439-755X
CN 11-1911/B

心理学报 ›› 2016, Vol. 48 ›› Issue (6): 599-606.doi: 10.3724/SP.J.1041.2016.00599

• 论文 •    下一篇



  1. (1东北师范大学教育学部心理学院, 长春 130024) (2广东财经大学马克思主义学院, 广州 510320) (3香港中文大学心理学系, 香港) (4苏州大学教育学院心理学系, 苏州215123)
  • 收稿日期:2015-06-26 发布日期:2016-06-25 出版日期:2016-06-25
  • 通讯作者: 张明, E-mail:
  • 基金资助:


ERP effects of position-specific radicals in Chinese character recognition: Evidence from semantic categorization

WU Yan1; MO Deyuan2; WANG Haiying1; YU Yiyang1; CHEN Hsuan-Chih3; ZHANG Ming4   

  1. (1 School of Psychology, Northeast Normal University, Changchun 130024, China) (2 School of Marxism, Guangdong University of Finance and Economics, Guangzhou 510320, China) (3 Department of Psychology, Chinese University of Hong Kong, HongKong, China) (4 Department of Psychology, School of Education, Soochow University, Suzhou 215123, China)
  • Received:2015-06-26 Online:2016-06-25 Published:2016-06-25
  • Contact: ZHANG Ming, E-mail:


采用Go/NoGo语义分类任务, 在贴近自然语言理解的任务模式下探讨了部件位置的加工时程问题。实验操纵了部件位置频率, 并进一步区分了造成部件相对位置频率发生变化的两种来源, 一是操纵部件整体频率(包含某部件的所有汉字集合)的变化, 保持特殊位置上的部件频率(某部件出现在特定位置上的汉字集合)不变; 二是操纵特殊位置上的部件频率的变化, 保持整体部件频率不变。结果表明, 无论是变化整体部件频率还是变化特殊位置上的部件频率, 两者都引发了P200和N400的变化, 且所引发的P200在峰潜时(peak latency)上差异不显著。此外, 两种操作都没有引发N/P150的变化。因此本研究在贴近自然语言理解的任务中进一步肯定了部件位置在汉字阅读中的作用, 既可以影响汉字亚词汇水平的字形加工, 也可以影响汉字的语义提取。

关键词: 部件, 部件位置频率, 汉字识别, ERPs


In written Chinese, over 80% of characters are compounds, in which independent constituents called radicals can be considered as the sub-lexical units. Some radicals can appear at different positions within a character. For instance, the radical 口 can appear on the left of 听 (listen), on the right of 知 (know), at the top of 呆 (stupid), or at the bottom of 杏 (apricot). The primary concern in prior behavioral studies on radical processing is whether radicals are represented with or without position in the Chinese lexicon (i.e., position-specific or position-general, respectively). However, ERP results confirmed that both position-specific and position-general radical representations existed in human mental lexicon. The new argument is that whether the position-specific radicals are activated at the first stage in character recognition, as reflected by the N/P150 effects. Although prior studies revealed that position-specific radical processing was related to the N/P150, the tasks used in those studies were not natural enough to reflect the situation in conventional reading. Therefore, unlike prior studies, a Go/NoGo semantic categorization task was used in the present study, which could guarantee the requirements in daily life reading. Using event-related brain potentials (ERPs), two types of radical information were manipulated: the number of characters containing a specific radical irrespective of position (i.e., frequency as a position-general radical) and the number of characters containing a specific radical at a particular position (i.e., frequency as a position-specific radical). The results showed that the effects of position-specific and position-general radical frequency were both related to P200 and N400. Characters of low radical frequency evoked a larger P200 and a smaller N400 than their high frequency counterparts. Moreover, no difference was found between the peak latency of the two P200 effects. More importantly, no N/P150 effects were found to be associated with the processing of position-general and position-specific radicals. Given that both position-general and position-specific radical frequency would influence the radical position dominance (the degree of dominance was calculated by dividing the sum frequency of characters that shared the same radical in each possible position by the total frequency of all characters sharing the radical irrespective of position; dominance = position-specific radical frequency / position-general radical frequency), both results associated with effects of position-specific and position-general radicals reflected the processing of radical position. Therefore, the current results indicate that radical position plays an important role in Chinese character reading, which influences not only the sub-lexical orthographic processing, but also the character semantic activation.

Key words: position-specific radical, position-general radical, ERPs, semantic categorization task