抄録
This paper describes a computer simulation study for estimating the multiple sources in the brain based on a three dimensional measurement of magnetoencephalogram (MEG). An estimation algorithm with search method proposed here is used three components of magnetic field measured by vector gradiometer. In the calculation of estimating multiple sources existing in the brain, magnetic distributions perpendicular to the scalp is not helpful owing to the lack of a dipole pattern. However, the magnetic distribution tangential to the scalp can provide information on constraint conditions for estimation of multiple sources. This method using three components of magnetic field can estimate two and three sources models.
