The Electroencephalogram (IMAGE) Université de Genève Caption The electroencephalogram records the electrical activity of the brain in a non-invasive way using 256 electrodes placed on the scalp. Thanks to mathematical algorithms combined with anatomical imaging, we can see what is happening in the deepest part of our brain, without having to enter it directly. Credit © UNIGE Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.