期刊
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING
卷 16, 期 5, 页码 425-431出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TNSRE.2008.2003384
关键词
Brain-computer interface (BCI); electroencephalogram (EEG); event-related desynchronization (ERD); event-related synchronization (ERS); motor imagery; source analysis
资金
- NIBIB NIH HHS [R01 EB000178-05, R01 EB007920, R01EB00178, R01 EB007920-01A1, R01EB007920, R01 EB000178] Funding Source: Medline
- NIDDK NIH HHS [T90 DK070106] Funding Source: Medline
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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