High Contrast (VIDEO) University of Rochester This video is under embargo. Please login to access this video. Caption Participants viewed video clips like the one above and indicated which direction the lines were headed, right or left. Credit Duje Tadin, University of Rochester 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.