汉语产生偏侧化影响阅读和视觉空间注意偏侧化的认知神经机制

项目名称： 汉语产生偏侧化影响阅读和视觉空间注意偏侧化的认知神经机制

项目编号： No.31470984

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 神经、认识与心理学

项目作者： 罗春明

作者单位： 中国科学院心理研究所

项目金额： 85万元

中文摘要： 大脑半球在结构和功能上的不对称称为大脑偏侧化，它对于人类的进化和发展有重要的意义，但大脑偏侧化的机制尚不清楚。随着脑成像技术的日益成熟，当前偏侧化研究逐渐关注各种认知功能对应脑区的偏侧化之间的关系。本项目利用认知行为实验和脑成像技术，首先结合汉语本身的特性考察汉语产生和阅读的偏侧化是否存在相同方向或相关，并检验快速传输假设；接着将考察注意的各子系统的偏侧化是否存在相同方向和相关，并检验快速传输假设，最后结合这两方面的研究，考察了汉语产生、阅读和视空注意的偏侧化是否存在相同方向或相关，并同时检验了快速传输和拥挤假设。本项研究不仅有助于阐明语言产生的偏侧化、阅读的偏侧化和视空间注意的偏侧化间的关系问题，而且将有助于理解大脑功能偏侧化的机制和大脑功能是如何组织的这一基本科学问题。

中文关键词： 语言产生与阅读；视觉空间注意；认知神经机制；事件相关电位（ERP）；功能磁共振成像

英文摘要： Structural and functional hemispheric asymmetries in the brain are called brain lateralization, which have important significance in human evolution and development, but it is unclear what are the mechanisms of brain lateralization. With substantial progress made in brain imaging techniques, the present lateralization studies have focused on gradually the relationships between lateralizations of different cognitive functions associated with different brain regions. The present project, using behavioral and brain imaging techniques, will examine (1) whether there are identical direction of lateralization and correlation between Chinese language production and reading by combining characteristics of the Chinese language, and test the quick transmission account;(2) whether there are identical direction of lateralization and correlation among attentional sub-networks, and test the quick transmission account;(3)whether there are identical direction of lateralization and correlation between lateralization of Chinese language production and reading and attentional lateralization, on the basis of the findings of above (1) and (2),and test the quick transmission account and the crowding or causal relation account. This project will not only help to understand the relationships between Chinese language production and reading and attentional lateralization, but also to understand the mechanisms of lateralization of cerebral function and the scientific issue of organization of cerebral function.

英文关键词： language production and reading;visual spatial attention;cognitive and neural mechanisms;event-related potentials;functional MRI