Neuronal Substrates of Literacy : High-field Functional MRI

血氧水平依赖性（BOLD）对比功能磁共振成像（MRI）已经彻底改变了人类大脑高级功能的研究。然而，该方法仍然具有各种缺点。该项目旨在利用专门为功能磁共振成像实验优化的高场磁共振成像系统来阐明人类语言功能的神经基质。语言处理的大脑策略，特别是与阅读相关的策略，被发现受到一个人最初获得读写能力的语言的显着影响。左侧颞下沟（ITS）后部两侧的皮层是汉字阅读等复杂字符处理所必需的，而舌回则是音节形成的高度特异性区域。左侧梭状回是所有语言的“共同”区域，右侧枕横回是音符或手语等位置加工所需的区域。声音的感知在触发大脑组织“语言通路”中起着重要作用，尽管它作为语言的有效传递属性。自组织原理和“抽取”原理是包括阅读在内的视觉信息处理的基本特性。

Blood oxygenation level dependent (BOLD) contrast functional magnetic resonance imaging (MRI) has revolutionized the investigations of higher brain function in humans. Nevertheless, the method still has various shortcomings. The projects are designed to elucidate neuronal substrates underlying functionality of human languages utilizing high-field MRI system specifically optimized for fMRI experiments.Brain strategies for language processing, especially those related with reading is found to be significantly affected by the languages with which one's literacy is first acquired. The cortex flanking the posterior aspect of the left inferior temporal sulcus (ITS) is necessary for complex character processing such as Kanji reading, while lingual gyri are highly specific for syllabus formation. The left fusiform gyrus represents "common" area for any languages and right occipital transverse gyrus is needed for positional processing such as musical note or sign languages.Regardless of its effectiveness as language conveying property, the perception of sound play a significant role in triggering the brain to organize "language pathway." The principle of self-organization and "decimation" principle appear to be the fundamental properties of visual information processing including reading.