Title :
Discrimination of multiple sources of alpha brain activity with 3-D MEG measurement
Author :
Bong-Soo Kim ; Uchikawa, Y.
Author_Institution :
Coll. of Sci. & Eng., Tokyo Denki Univ., Saitama, Japan
Abstract :
Summary form only given. Magnetoencephalogram (MEG) measurement of the magnetic field perpendicular to the scalp is widely used. We carried out the measurement of magnetic alpha waves using a 195ch whole-head vector MEG system for detecting three magnetic field components (B/sub r/, B, B). In order to discuss the multiple sources of the magnetic alpha wave, a source estimation algorithm with singular value decomposition method we developed by Kobayashi and Uchikawa (2001) was used.
Keywords :
magnetic field measurement; magnetoencephalography; medical signal processing; singular value decomposition; vectors; 100 ms; 3D MEG measurement; 8 to 13 Hz; alpha brain activity; magnetic field; magnetoencephalogram measurement; singular value decomposition; source estimation algorithm; whole-head vector MEG system; Analysis of variance; Area measurement; Biomedical engineering; Biomedical measurements; Brain; Coils; Electroencephalography; Magnetic stimulation; Power measurement; White noise;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1001372
