"A group of students who saw that a backpack was attached to an avatar that they had created overestimated the heights of virtual hills, just as people in real life tend to overestimate heights and distances while carrying extra weight, according to Sangseok You, a doctoral student in the school of information, University of Michigan. "You exert more of your agency through an avatar when you design it yourself," said S. Shyam Sundar, Distinguished Professor of Communications and co-director of the Media Effects Research Laboratory, Penn State, who worked with You. "Your identity mixes in with the identity of that avatar and, as a result, your visual perception of the virtual environment is colored by the physical resources of your avatar."" - × × ×