Cognitive Brain Mechanism Study on Tibetan-Chinese-English Vocabularies for Tibetan Undergraduates

Recorded EEG signal to using ERP analysis and traceability method, the paper discuss about the Tibetan trilingual's brain variation trend in Tibetan-Chinese- English vocabulary cognition processing. The conclusions from the experiments are as follows: 1) the left occipital activation is related to writing system. Compared with the logographic system, there is more left brain activation in the alphabetic systems; 2) The right brain activation relate to the language acquisition time, the later acquired language the higher degree of the right brain activation, that is, the second language is more using right brain than the mother tongue in the processing.