摘要
研究结合静息态全脑功能连接密度和基于种子点的功能连接(FC)分析考察了藏汉双语者汉语(L2)阅读各子能力(细节捕捉和推理判断)的固有脑功能组织特点。结果发现左侧额下回—左侧颞上回和右侧舌回—右侧中央前回之间的FC值均与细节捕捉题得分和推理判断题得分呈显著正相关,但是左侧额下回—右侧顶下小叶之间的FC值只与推理判断题得分呈显著正相关。表明藏汉双语者汉语阅读各子能力之间既有重叠的又有不同的功能连接通路。
Resting-state functional connectivity （FC） studies have revealed that second language （L2） reading comprehension can be predicted by intrinsic functional organization （IFO） within language network. However, these studies select some specific seed regions in language network according to priori knowledge before FC analysis, which can result in some biased results and neglect of some important unpredictable findings. Additionally, most previous studies explore L2 reading comprehension largely taking reading as a global construct without considering the multidimensional structure of reading, thus little is known about the features of IFO related to subskills of reading ability in L2 learning. Therefore, the present study combined resting-state whole-brain functional connectivity density （FCD） with the FC analysis based on seed regions to investigate the characteristics of IFO associated with specific dimensions of L2 reading. Nineteen Tibetan-Chinese bilinguals were recruited in the present study, and resting-state functional magnetic resonance imaging （fMRI） data were acquired in each participant. Then, the Chinese Character Reading Efficiency Test （CCRET） and the reading comprehension section of Hanyu Shuiping Kaoshi （HSK） were used to evaluate the global level and two dimensions （literal comprehension and inferential comprehension） of L2 reading respectively. Next, a novel voxel-level whole-brain FCD analysis was applied to find the key brain regions associated with L2 reading. Furthermore, the FC between key brain regions and each voxel was computed by conducting seed-based FC analysis, and the correlation between each FC and two dimensions of Chinese reading comprehension were also evaluated respectively. The results showed that literal comprehension scores in L2 reading were not only significantly correlated with inferential comprehension scores, but also higher than inferential comprehension scores. FCD analysis found that the three key brain regions including the left inferi
作者
黄玲珊
陈建林
刘光耀
张喆
董英
Huang Lingshan;Chen Jianlin;Liu Guangyao;Zhang Zhe;Dong Ying(School of Foreign Languages and Literatures,Lanzhou University,Lanzhou,730000;Department of MR,Lanzhou University Second Hospital,Lanzhou,730030;School of Information Science and Engineering,Lanzhou University,Lanzhou,730000)
出处
《心理科学》
CSSCI
CSCD
北大核心
2018年第5期1047-1054,共8页
Journal of Psychological Science
基金
国家社会科学基金项目(16BYY085)
中央高校基本科研业务经费专项资金项目(17LZUJBWZY069)的资助
关键词
藏汉双语
汉语阅读
功能连接
静息态
Tibetan-Chinese bilinguals
reading comprehension
functional connectivity
resting-state
