An fM RI Study on Neural Substrates of Nouns and Verbs in Late High-proficient Chinese-English Bilinguals
Wang Tao;Yang Yi-ming;Nanjing Normal University;Qufu Normal University;Jiangsu Normal University;Jiangsu Collaborative Innovation Center for Language Ability;
Nouns and Verbs are fundamental grammatical building blocks of all languages. Most of previous studies examining both monolingual speakers of Western languages and Western bilingual speakers have demonstrated that nouns and verbs are represented in different brain circuits. However,it is still unclear about how nouns and verbs are represented in the brain of Chinese-English bilinguals. This study investigates the neural substrates of these two grammatical categories in healthy,late high-proficient Chinese-English bilinguals using functional magnetic resonance imaging( fM RI) in a picture-naming task. Four regions show greater activity for verbs than for nouns in Chinese context: right middle temporal gyrus,left middle temporal gyrus,left inferior frontal gyrus and right superior occipital gyrus. Five regions show greater activity for verbs than for nouns in English context: left precuneus,left middle temporal gyrus,right inferior temporal gyrus,right middle temporal gyrus and right middle occipital gyrus. These results suggest that nouns and verbs are separately represented in the brain of Chinese-English bilinguals,and left middle temporal gyrus is the neural substrate underlying verb-specific processing,which is independent of language in bilinguals.
【CateGory Index】： H0-05