Coculture (VIDEO) Duke University This video is under embargo. Please login to access this video. Caption A red line races across the screen as electrical signals are passed from cell to cell in a straight line. The panel at left shows the slowness of the signals in untreated, electrically inactive cells. The right panel shows the speed gained by treating the cells with a trio of bacterial genes to enhance conductivity. Credit Nenad Bursac, Duke University 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.