Changes in the Bistable System (IMAGE) Hokkaido University Caption Conceptual illustration showing that sensitivity of the bistable system becomes high when Gaussian noise is imposed to a weak signal. Credit Kasai S., et al., <em>Applied Physics Express</em>, Feb. 16, 2018. Usage Restrictions This image is copyrighted and can be used for reporting this press release if properly credited. 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.