A Cortical Potential Imaging Analysis of Mu Rhythm during On-line Control of Brain-Computer Interface

Author

Yuan, Han ; He, Bin

Author_Institution

Minnesota Univ., Minneapolis

fYear

2007

fDate

12-14 Oct. 2007

Firstpage

74

Lastpage

77

Abstract

In the present study, cortical potentials during online BCI experimentation were estimated by solving the inverse problem. The computer cursor was controlled by motor imagination in a standard BCI protocol. An approach of spectral spatiotemporal imaging of cortical potential was proposed and analysis results from online experiment revealed distinct localization of rhythmic activity for different tasks. The present pilot study again demonstrates the high spatial resolution of CPI compared to scalp potential and suggests its feasibility in BCI applications.

Keywords

biocontrol; bioelectric potentials; biomedical imaging; electroencephalography; inverse problems; neurophysiology; spatiotemporal phenomena; user interfaces; Mu rhythm; brain-computer interface; cortical potential imaging analysis; electroencephalogram; motor imagination; on-line control; rhythmic activity; spectral spatiotemporal imaging; Biomedical imaging; Brain computer interfaces; Electrodes; Electroencephalography; Image analysis; Protocols; Rhythm; Scalp; Signal resolution; Spatial resolution;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/NFSI-ICFBI.2007.4387691

Filename

4387691