Takeda K, Kaminaga T, Furui S, Shimizu T
Department of Rehabilitation, Tokyo Metropolitan Institute for Neuroscience, Japan.
Neurosci Lett. 1999 Jan 8;259(2):87-90. doi: 10.1016/s0304-3940(98)00922-7.
Functional magnetic resonance imaging (fMRI) is used to investigate the neural basis for tactile reading of Japanese phonograms (kana) with the left hands of six normal right-handed Japanese subjects. Both the tactile reading and recognition tasks activated the areas surrounding the left and right central sulci in all subjects. The region surrounding the left intraparietal sulcus was activated during the tactile reading task in all subjects, whereas the region was activated during the tactile recognition task in only two subjects. These results suggest the bilateral central sulcus areas participate in the manipulatory movement of the left hand and processing of the somatosensory information, and the left intraparietal sulcus area participates inevitably, in the tactile reading of Japanese phonograms. Our experiments support the essential role of the intraparietal sulcus area in the phonogram-reading process.
功能磁共振成像（fMRI）被用于研究六名正常右利手日本受试者用左手触觉阅读日文假名的神经基础。在所有受试者中，触觉阅读和识别任务均激活了左右中央沟周围的区域。在所有受试者的触觉阅读任务中，左侧顶内沟周围区域被激活，而在触觉识别任务中，该区域仅在两名受试者中被激活。这些结果表明，双侧中央沟区域参与左手的操作运动和体感信息的处理，而左侧顶内沟区域不可避免地参与日文假名的触觉阅读。我们的实验支持顶内沟区域在假名阅读过程中的重要作用。
