Difficult to Recognize An Inverted Face (IMAGE) National Institutes of Natural Sciences Caption Image 1 shows a normal (left) and an inverted face image (the eyes and nose were tampered with) (right). Unless the image is turned over, it is difficult to realize the peculiarity of the "thacherized" face. In this study, researchers show the reason why face recognition is ineffective when the face is shown inverted. Credit National Institute for Physiological Sciences 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.