Title :
The Feasibility Study of the Laplacian Electrode for EEG
Author :
Li, Gang ; Wang, Lili ; Lu, Stephen C -Y ; Wang, Yue ; Jiang, Wei ; Besio, Walt G.
Author_Institution :
Coll. of Precision Instrum. & Opto-Electron. Eng., Tianjin Univ.
Abstract :
The surface Laplacian can give more localized information of the brain. A concentric bipolar electrode (consisting of a central disc and an outer annulus) can measure the surface Laplacian of the body surface electrical potential distribution. In this article we will study the feasibility of the Laplacian electrode for EEG from the problems of SNR, selection of the electrode parameter. And a new kind of active Laplacian electrode will be introduced to detect the visual evoked potential
Keywords :
biomedical electrodes; electroencephalography; visual evoked potentials; EEG; Laplacian electrode; body surface electrical potential distribution; brain; concentric bipolar electrode; visual evoked potential; Bioelectric phenomena; Biomedical electrodes; Biomedical engineering; Biomedical measurements; Electric potential; Electric variables measurement; Electroencephalography; Laplace equations; Scalp; Spline;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1615512
