NatMEG lecture: On-scalp MEG by Prof. Matti Hämäläinen скачать в хорошем качестве

NatMEG lecture: On-scalp MEG by Prof. Matti Hämäläinen

Title: On-scalp MEG will Provide Ultimate Spatial Resolution and Sensitivity Where: Chalmers University of Technology, Gothenburg, Sweden When: Next-generation MEG sensors conference, May 27-28, 2015 The most significant factor limiting the spatial resolution of MEG is the long distance between the electrical current sources and the present lowTc SQUID sensors. If the sensors can be position on scalp or at a very short distance from it, the inverse problem of MEG becomes less ill-posed and we estimate that a spatial resolution of less than 5 mm can be achieved. In addition, provided that the noise level of the sensors is low enough, many real-time applications of MEG become possible. This talk will discuss desirable designs of on-scalp MEG systems and present theoretical calculations of their performance. Simulations and data from our new BabyMEG system will be presented to demonstrate the general ideas in a specific case.