METHOD FOR MONITORING THE ALERT LEVEL IN REAL TIME BASED ON BRAIN WAVES AND DEVICE FOR THE PRACTICE OF THE SAME.

摘要

Method for monitoring the level ofReal-time alert based on brain waves and device forthe implementation of it.;The method is based on the capture of the signal fromsubject electroencephalography (EEG) through a system ofEGG record (1) and by means of three dry electrodes (4) tothrough those that register in monopolar mode to any ofthe C3, C4, Cz, O1 and O2 sites of the cerebral cortex. The signalregistered is filtered, proceeding to record the alpha rhythm ofsubject in a state of relaxation. Once determined saidalpha behavior the EEG of the same is recorded before anyactivity you are doing, proceeding to normalization inamplitude with respect to its maximum value of the registered spectra.Subsequently, a second normalization is performed based onthe alpha behavior recorded, and from that spectrumdetermines a variable that allows discrimination of thealert level by simple thresholding, and corresponding to thequotient between the power in the personal upper band and the bandpersonal alpha.