Patients with anorexia have trouble accurately judging their own body size, but not the bodies of others. In a test, when asked if they could pass through a doorway, anorexic patients felt they could not pass through the door even when it was easily wide enough. However, anorexic patients were more accurate at judging others’ ability to pass through the doorway than their own. The study also found a correlation between the perception of the patients’ own ability to pass through the aperture and their body size prior to becoming anorexic, suggesting that the patients may still think of themselves as their previous size.
PLOS ONE, August 2012