Yu L.,Key Laboratory of Language science and Neurocognitive Engineering of Jiangsu Province |
Yu L.,Xuzhou Normal University |
Liu J.-F.,Key Laboratory of Language science and Neurocognitive Engineering of Jiangsu Province |
Liu J.-F.,Xuzhou Normal University |
And 6 more authors.
Journal of Clinical Rehabilitative Tissue Engineering Research | Year: 2010
BACKGROUND: In recent years, with the rise of construction grammar theory, the function of constuction factor in language processing attracts more and more attention. However, whether these construction views agree well with the true situation inhuman's brain, in other words whether these theories have neurophysiological basis requires verification by experiments of neurolinguistics. OBJECTIVE: To explore the function of constuction factor in Chinese processing with event-related potential (ERP) measures. METHODS: A total of 18 Chinese college students aged 21-24 years, were selected. There were 176 sentences as stimulating materials which included two kinds of correct Chinese sentences and two kinds ofcorresponding wrong sentences. Each word/character was presented for 300 ms with 400 ms interval. And the interval between two sentences was 2 000 ms. Subjects were asked to read each sentences presented on the screen and to decide whether these sentences true or false. The subjects responded by pushing buttons with left hand for "yes" and right hand for "no". The reaction time and accuracy were recorded. The brain electricity was recorded by American Neuroscan electric conduction evoked potential workstation. N400 was used as an index of implicit processing mechanism, and P600 was used as an index of explicit processing mechanism. ESULTS AND CONCLUSION: There were no differences in N400 at the end of these two kinds of sentences, but as for LPCs, different sentence structures elicited different LPCs. The average amplitude of complicated sentences was higher than that of simple sentences. Results show that in Chinese processing, construction factor plays a very important role at the later integratingprocess of different structure sentences. Different structures elicit different LPCs at the end of a sentence. The LPCs at the end ofa sentence can be used as an index to judge construction mental reality.