Eye Tracking (IMAGE) Washington University School of Medicine Caption As identical twins watched videos, they almost always looked for the same things at the same times and in the same places. Where gazes fell is marked by the plus signs. Fraternal twins didn't match as well as identical twins, indicating that genes control where children look. Credit Constantino laboratory 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.