Spatial and Frequency Differences of Neuromagnetic Activities Between the Perception of Open- and Closed-class Words
作者： Yingying Wang , Jing Xiang , Rupesh Kotecha , Jennifer Vannest , Yinhong Liu
DOI: 10.1007/S10548-008-0060-7
关键词:
摘要: The present study investigated the spatial and frequency differences of neuromagnetic activities between perception open- closed-class words by using a 275-channel whole head magnetoencephalography (MEG) system. Two groups words, 110 open-class closed-class, were presented visually auditorily simultaneously. data 12 healthy subjects analyzed with synthetic aperture magnetometry (SAM) which can identify frequency-dependent volumetric distribution evoked magnetic fields (EMFs). Both vocabulary classes elicited spectral power changes in left inferior frontal gyrus (Broca's area) posterior-superior temporal (Wernicke's within 70-120 Hz. However, event-related desynchronization (ERD) while synchronization (ERS) two areas In addition, also ERS right gyrus, middle parietal lobe 1-8 Hz, but only ERD Furthermore, there 120-200 Hz for not words. These results indicate that are processed differently brain, anatomical substrates, range activity.
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