Cortical Imaging of Event-Related (de)Synchronization During Online Control of Brain-Computer Interface Using Minimum-Norm Estimates in Frequency Domain

被引：91
|
作者：
Yuan, Han [1 ]
Doud, Alexander [1 ]
Gururajan, Arvind [1 ]
He, Bin [1 ]
机构：
[1] Univ Minnesota, Dept Biomed Engn, Minneapolis, MN 55455 USA
来源：
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING | 2008年 / 16卷 / 05期
关键词：
Brain-computer interface (BCI); electroencephalogram (EEG); event-related desynchronization (ERD); event-related synchronization (ERS); motor imagery; source analysis;
D O I：
10.1109/TNSRE.2008.2003384
中图分类号：
R318 [生物医学工程];
学科分类号：
0831 ;
摘要：
It is of wide interest to study the brain activity that correlates to the control of brain-computer interface (BCI). In the present study, we have developed an approach to image the cortical rhythmic modulation associated with motor imagery using minimum-norm estimates in the frequency domain (MNEFD). The distribution of cortical sources of mu activity during online control of BCI was obtained with the MNEFD. Contralateral decrease (event-related desynchronization) and ipsilateral increase (event-related synchronization) are localized in the sensorimotor cortex during online control of BCI in a group of human subjects. Statistical source analysis revealed that maximum correlation with movement imagination is localized in sensorimotor cortex.
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页码：425 / 431
页数：7
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