Science Explains Mirror Image: According to the mere-exposure hypothesis, people prefer what they see and encounter most often. In terms of self-perception, this means that people prefer their mirror images to their true images, which are what other people see. Experiments conducted at the University of Wisconsin, Madison in 1977 support this idea: When presented with photos of their true image and their mirror image, participants preferred their mirror image while friends and romantic partners preferred their true image. When asked to explain the preference, they pointed out camera angles, lighting, head tilt and other differences that did NOT actually exist, because the photos were made from the same negative. Fun Fact: Only 10 percent of people prefer their real image to their mirror image.