Effective connectivity of brain regions related to visual word recognition: An fMRI study of Chinese reading

Effective connectivity of brain regions related to visual word recognition: An fMRI study of Chinese reading
复制标题

与视觉单词识别相关的大脑区域的有效连接:中文阅读的功能磁共振成像研究

DOI:
10.1002/hbm.22792
复制
发表时间:
2015-07
影响因子:
4.8
通讯作者:
Tan Li Hai
Tan Li Hai
中科院分区:
医学2区
文献类型:
--
作者:
Xu Min;Wang Tianfu;Chen Siping;Fox Peter T.;Tan Li Hai

文献摘要

参考文献

被引文献

相似文献

过去的神经影像学研究主要集中在识别处理阅读的不同组成部分(如正字法、音韵学和语义学)的专门功能性大脑系统。最近,一些实验已经进行了视觉单词识别的分布式神经系统的整合和相互作用,这表明字母语言的词汇处理涉及来自视觉皮层的腹侧和背侧神经通路。本研究采用功能磁共振成像(fMRI)技术,以汉字为刺激,对多通路模型进行了验证,并探讨了阅读过程中神经系统的相互作用。利用动态因果模型,我们证明,在中国的视觉词识别涉及腹侧通路从视觉皮层到左腹侧枕颞叶皮层,但不是背侧通路从视觉皮层到左顶叶区。然而,腹侧通路与上级顶叶小叶和左侧额中回(MFG)相连,因此形成了一个动态神经网络,信息从视觉皮层流向左侧腹侧枕颞叶皮层,再流向顶叶小叶,然后流向左侧MFG。研究结果表明,皮层动力学是由书写系统中的视觉正字法符号如何与口语联系在一起的差异所制约的。《脑地图》36:2580-2591,2015年。© 2015威利期刊公司.
Past neuroimaging studies have focused on identifying specialized functional brain systems for processing different components of reading, such as orthography, phonology, and semantics. More recently, a few experiments have been performed to look into the integration and interaction of distributed neural systems for visual word recognition, suggesting that lexical processing in alphabetic languages involves both ventral and dorsal neural pathways originating from the visual cortex. In the present functional magnetic resonance imaging study, we tested the multiple pathways model with Chinese character stimuli and examined how the neural systems interacted in reading Chinese. Using dynamic causal modeling, we demonstrated that visual word recognition in Chinese engages the ventral pathway from the visual cortex to the left ventral occipitotemporal cortex, but not the dorsal pathway from the visual cortex to the left parietal region. The ventral pathway, however, is linked to the superior parietal lobule and the left middle frontal gyrus (MFG) so that a dynamic neural network is formed, with information flowing from the visual cortex to the left ventral occipitotemporal cortex to the parietal lobule and then to the left MFG. The findings suggest that cortical dynamics is constrained by the differences in how visual orthographic symbols in writing systems are linked to spoken language. Hum Brain Mapp 36:2580–2591, 2015. © 2015 Wiley Periodicals, Inc.
DOI: 10.1016/j.neuropsychologia.2012.09.030
发表时间: 2012-12
期刊: Neuropsychologia
影响因子: 2.6
作者:
Seghier ML;Neufeld NH;Zeidman P;Leff AP;Mechelli A;Nagendran A;Riddoch JM;Humphreys GW;Price CJ
通讯作者: Price CJ
DOI: 10.1002/hbm.10094
发表时间: 2003-03
影响因子: 4.8
作者:
W. Siok;Zhen Jin;P. Fletcher;L. Tan
通讯作者: W. Siok;Zhen Jin;P. Fletcher;L. Tan
DOI: 10.1111/j.1467-8721.2009.01599.x
发表时间: 2009-02-01
影响因子: 7.2
作者:
Schlaggar BL;Church JA
通讯作者: Church JA
DOI: --
发表时间: --
期刊: --
影响因子: --
作者:
F. Hoeft;Arvel Hernandez;Glenn McMillon;J. Martindale;Heather Taylor-Hill;Ann Meyler;T. Keller;W. Siok;G. Deutsch;M. Just;S. Whitfield-Gabrieli;J. Gabrieli
通讯作者: F. Hoeft;Arvel Hernandez;Glenn McMillon;J. Martindale;Heather Taylor-Hill;Ann Meyler;T. Keller;W. Siok;G. Deutsch;M. Just;S. Whitfield-Gabrieli;J. Gabrieli
解码阅读能力的神经解剖学基础:多体素形态测量研究
DOI: 10.1523/jneurosci.0449-13.2013
发表时间: 2013-07-31
影响因子: 5.3
作者:
He, Qinghua;Xue, Gui;Dong, Qi
通讯作者: Dong, Qi