Rat (IMAGE) University of Texas at Austin Caption Researchers recorded gamma waves in the brains of rats navigating through a simple environment to understand how current and past locations are represented in the brain. Credit Laura Colgin/University of Texas at Austin 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.