Brain source montages improve the non-invasive diagnosis in epilepsy

• DOI: 10.1016/j.ics.2004.04.035
• Publication Date: 2004-08-05T15:25:56Z
• Authors: M Scherg; T Bast; K Hoechstetter; N Ille; D Weckesser; H Bornfleth; P Berg
• Keywords: Source model

Abstract Using multiple regional source models, brain source montages can be defined to compute continuous, single trial or averaged brain source activity by applying a fixed or adaptive source transformation to the raw or averaged EEG or MEG data. Brain source montages can dissociate the activities of the different lobes, hemispheres and sublobar areas, e.g. the different surfaces of the right and left temporal lobes. Epileptiform spike and seizure activities in EEG and MEG can be made more conspicuous by using brain source montages as compared with conventional montages or raw surface signals. By using mirror sources in both hemispheres, lateralized focal activity can be immediately recognized from the on-going EEG and MEG data.