Optogenetic Defibrillation (IMAGE) University of Bonn Caption A: Optogenetic defibrillation (blue bar) stops arrhythmia in mouse heart. B: Simulation of optogenetic defibrillation (red bar) in a model of a human heart. Credit © Image: Tobias Brügmann (University Bonn)/Patrick M. Boyle (Johns Hopkins University) Usage Restrictions This photo may be used with the press release. 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.