The Processing of Semantic Meaning in Chinese Words and Evoked Brain Topography
The Processing of Semantic Meaning in Chinese Words and Evoked Brain Topography
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汉语词语语义加工与诱发脑地形图
DOI：
10.1023/b:brat.0000032861.00691.8d
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发表时间：
2003
期刊：
影响因子：
2.7
通讯作者：
Yuru Lin
中科院分区：
文献类型：
--
作者：
W. Skrandies;M. Chiu;Yuru Lin
词语的内涵意义可以通过“语义差异技术”进行统计量化，从而产生统计定义的独立维度，其中每个词语在三维评估中唯一定位。在早期的研究中，德国的主题，我们证明了有电生理相关的这些意义的尺寸。本研究以55名中国成年人为被试，进行了两个实验：首先，32名被试对210个名词进行了评定，并对问卷数据进行了因子分析，得出了三个独立的语义维度。这些结果产生的语义独特的话，然后作为电生理实验中的刺激在另一组23名健康的右撇子成年人。属于不同语义类别的相似物理外观的单词以随机顺序在视觉上呈现。从29个通道记录了EEG，并计算了每个语义类的诱发大脑活动。这些语义词类之间的脑电激活的显着差异，观察到早在80毫秒刺激发作后，证实了早期的报告类似的研究结果在德国的主题。进一步的相似之处揭示了由词引起的潜在成分的地形分布的直接比较，并对两组数据进行空间PCA的结果。这些结果表明，在不同语言和文化的受试者群体中，基于语义类别的早期神经激活相似。
The connotative meaning of words can be quantified statistically by the "semantic differential technique" resulting in statistically defined, independent dimensions where every word is uniquely located on the three dimensional evaluation. In an earlier study on German subjects we demonstrated that there are electrophysiological correlates of these meaning dimensions. Here a group of 55 Chinese adults was investigated in two experiments: first, 210 nouns were rated by 32 subjects, and factor analysis on the questionnaire data yielded three independent semantic dimensions. Semantically unique words stemming from these results were then used as stimuli in electrophysiological experiments in another group of 23 healthy right-handed adults. Words of similar physical appearance belonging to different semantic classes were presented visually in random order. The EEG was recorded from 29 channels, and evoked brain activity was computed for each semantic class. Significant differences in electrical brain activation between these semantic word classes were observed as early as 80 ms after stimulus onset, confirming earlier reports on similar findings in German subjects. Further similarities were revealed by a direct comparison of the topographical distribution of potential components elicited by words, and by the results of spatial PCA performed on both sets of data. These results illustrate similar early neural activation based on semantic class, in subject groups of different language and culture.