Brain current source estimation method, brain current source estimation program, recording medium recording brain current source estimation program, and brain current source estimation device

摘要

By flowing an appropriate current on a virtual curved surface between the current source and the observation surface, the electromagnetic field generated by the current source can be restored, and the current distribution on the curved surface becomes closer to the true current source. Bayesian estimation is performed on the current source that restores the observation data based on the decrease in the spread of the current. In this estimation, the model posterior probability is maximized when a curved surface or a current source is included, that is, the position of the current source is estimated including the depth direction by examining the model posterior probability. In addition, when observation data from other observation means can be used at the same time, such information is incorporated into a hierarchical prior distribution when performing Bayesian estimation, and more accurate estimation is performed.