The Bouncer in the Brain (IMAGE) Institute of Science and Technology Austria Caption How do you keep orientation in a complex environment, like the city of Vienna? You can thank your brain's "global positioning system" (GPS), the hippocampus, for this sense of orientation. To further understand its functions, scientists at the Institute of Science and Technology Austria (IST Austria) analyzed single neurons of this GPS in mice. They discovered that so-called granule cells filter and sharpen spatial information. The researchers recently published their findings in Neuron. Credit Rieger / IST Austria Usage Restrictions Rieger / IST Austria 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.