What the EEG Captures The EEG is a summation of positive and negative signals at one point subtracted from the summation of positive and negative signals at another point–NOT just the number at a single point.  What’s more, Tom Collura and Val Brown did an excellent presentation at WinterBrain several years ago, demonstrating that the EEG we measure is primarily measured from pyramidal neurons only (they have a positive and negative end, so there is a difference in the reading […]