When multi-channel EP recordings are used for source localization, the electrode positions have to be determined with respect to a common reference frame. In this paper a method is described for determining the electrode positions on the head. Since it is difficult to fix electrodes accurately at a priori chosen positions, it is better to measure these positions afterwards. For this we have developed a practical method. The method also finds the best fitting sphere for the electrode positions, which is useful when a multi-sphere volume conductor is used in the inverse algorithm.
|Number of pages||3|
|Journal||Electroencephalography and clinical neurophysiology|
|Publication status||Published - 1991|
- electrode positions
- Source localization
- Multi-channel EP recording