In order to participate in the seminar, on November 6 after 4:45 pm (UTC+7) you should connect to the Zoom conference via the following link or manually using the Zoom conference ID 934 7387 9731.Magnetoencephalography (MEG) is a method of functional brain imaging, which allows us to non-invasively and contactlessly visualize fast electrical processes in the brain with a spatial resolution of the order of one centimeter. This fantastic property of MEG is determined by both the nature of the signals recorded with the MEG and the result of hardware and algorithmic advances implemented in modern systems and specialized software for processing multichannel MEG measurements. To convert the MEG sensor measurements into cortical activation maps, we are required to solve an underdetermined inverse problem. Methods for dealing with such underdetermination are actively researched in the modern scientific community and make a critical contribution to the resulting spatial resolution of the entire MEG technology.
In the talk, the engineering mathematical apparatus for solving the inverse problem of MEG (and EEG) will first be presented. Then a family of methods for solving inverse problems, developed in our laboratory, is described that provide increased spatial resolution and allow visualization of functional connections between cortical sources. In conclusion, there will be a brief description of the software developed by us for functional visualization of cortical activity based on MEG and EEG in real time on a regular PC!
