ECoG and microECoG Placement (image) University of Utah Caption This magnetic resonance image (MRI) of an epileptic patient's brain is superimposed with the locations of two kinds of electrodes: conventional ECoG electrodes (yellow) to help locate the source of his seizures so surgeons could operate to prevent them, and two grids (red) of 16 experimental microECoG electrodes used to read speech signals from the brain. University of Utah scientists used the microelectrodes to translate brain signals into words -- a step toward devices that would let severely paralyzed people speak. Credit Kai Miller, University of Washington. Usage Restrictions None 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.