Electroencephalography (EEG) is a powerful method of studying the electrophysiology of the brain with high temporal resolution. Several analytical approaches to extract information from the EEG signal have been proposed. One method, termed microstate analysis, considers the multichannel EEG recording as a series of quasi-stable "microstates" that are each characterized by a unique topography of electric potentials over the entire channel array. Because this technique simultaneously considers signals...

Electroencephalography (EEG) - sensitive non-invasive method for studying the functional state of the brain. Method History The beginning of the study of the electrical processes of the brain was laid by D. Raymond (Du Bois Reymond) in 1849, which showed that the brain, like the nerve and muscle, has electronic properties. In 1882, I.M.Sechenovpublished the work "Galvanic phenomena on the medulla oblongata of the frog", in which the fact of the presence of rhythmic electrical activity of the brain was first established...