Eye Tracker (IMAGE) University of Vienna Caption Manuela Marin sitting in front of the eye tracker, with an image of her right pupil displayed on the screen. Credit Copyright: Bruno Gingras Usage Restrictions The image may only be used with appropriate caption or credit. 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.