16-Microelectrode Grid (image) University of Utah Caption An array of 16 microelectrodes -- known as a microECoG grid -- is arranged in a four-by-four array and shown next to a US quarter-dollar coin with a Utah state design on its "tail" side. University of Utah researchers placed two such microelectrode grids over speech areas of a patient's brain and used them to decode brain signals into words. The technology someday might help severely paralyzed patients "speak" with their thoughts, which would be converted into a computerized voice. Credit Spencer Kellis, University of Utah 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.