Title :
Cortical Imaging of Sensorimotor Rhythm during On-line Control of Brain-computer Interface
Author :
Yuan, Han ; Doud, Alexander J. ; Gururajan, Arvind ; He, Bin
Author_Institution :
Minnesota Univ., Minneapolis
Abstract :
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 propose an approach to image the cortical rhythmic modulation by motor imagery using minimum-norm estimates (MNE) in the frequency domain. Cortical distribution of mu activity during online control of BCI was obtained with the MNE. Statistical source analysis revealed maximum correlation with one-dimensional movement localized in sensorimotor cortex.
Keywords :
biomedical MRI; electroencephalography; handicapped aids; statistical analysis; brain-computer interface; cortical imaging; cortical rhythmic modulation; minimum-norm estimates; motor imagery; online control; sensorimotor cortex; sensorimotor rhythm; statistical source analysis; Biological control systems; Brain computer interfaces; Communication system control; Electrodes; Electroencephalography; Frequency domain analysis; Frequency estimation; Magnetic resonance imaging; Rhythm; Scalp;
Conference_Titel :
Noninvasive Functional Source Imaging of the Brain and Heart and the International Conference on Functional Biomedical Imaging, 2007. NFSI-ICFBI 2007. Joint Meeting of the 6th International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4244-0949-5
Electronic_ISBN :
978-1-4244-0949-5
DOI :
10.1109/NFSI-ICFBI.2007.4387766
