The Method to Reveal Pathologic Activity of Human Brain in the Magnetic Encephalography Data

The method is proposed to find moments of time for averaging without external triggers. The Karhunen–Loeve eigenfunctions are used as a features for signal recognition. The method makes it possible to extract the signal from the experimental data for evoked and spontaneous activity. Application of the method to tinnitus studies revealed gamma-band bursts of activity in several experiments.