USE OF A COMPUTERIZED BRAIN ATLAS IN MAGNETOENCEPHALOGRAPHIC ACTIVATION STUDIES

A PILOT study was carried out to test the feasibility of an adjustable computerized brain atlas, adapted to the individual anatomy for local izing current dipoles by means of magnetoencephalography (MEG). The at las can be adapted to individual computed tomography (CT) or magnetic resonance (MR) images. Position information is transferred between the se imaging methods and MEG using a stereotactic technique. For this pu rpose, a special non-magnetic helmet was designed to be used together with the ordinary head fixation system. It seems likely that the propo sed combination of the brain atlas with MEG, CT and MRI methods will b ecome a powerful tool in exploring different brain functions.