A trial to elucidate neural mechanism of language information processing in perceptual executive system.

这一次我们试图探讨认知和词语表达在神经知觉执行系统中的关系。健康右撇子志愿者4名（男2名，女2名）。使用脑磁图（MEG）测量了在进行封顶时的磁场（日语称为“SHIR1TORI”）。记录对照会话（被动听到音调或观看闪光刺激，作为范式会话的提示刺激）和范式会话（每次提示刺激发出后立即按“SHIRITORI”方式逐个生成单词）的反应，然后进行离线平均分析。范式会话的平均磁场均方根（RMS）描述了与对照相比，范式会话中某些潜伏期的磁场增加，闪光和音调刺激后的潜伏期分别为380 ~ 930msec和300 ~ 820msec。此外，估计这些潜伏期的偶极子位于一些与语言相关的左半球区域，包括额盖、梭状回和后颞下区。

This time we attempted to explore the relation of cognition and word expression in neural perceptual executive system. Healthy right handed 4 normal volunteer (man 2, woman 2) were participated to this study. The magnetic fields while performing capping verses (called "SHIR1TORI" in Japanese) were measured by using magnetoencephalography (MEG). Responses of control session (passive hearing of tone or viewing of flash stimuli, which were used as cue stimuli in the paradigm session) and paradigm session (mental generation of words one by one according to "SHIRITORI" manner immediately after each cue stimulus emission) were recorded, then analyzed after off-line averaging. Root mean square (RMS) of averaged magnetic fields in the paradigm session delineated its increase at some latencies as compared with control one, which latencies after flash and tone stimulus onset ranged from 380msec to 930msec and 300msec to 820msec, respectively. In addition, estimated dipoles of these latencies were located to some language-related area of left hemisphere reported conventional PET and fMRI studies, including frontal operculum, fusiform and posteroinferor temporal region.