Composite Happy Face (image) Ohio State University Share Print E-Mail Caption This composite image shows a happy face as it was originally photographed (left) and the same photo retouched to emphasize changes in color. Researchers at The Ohio State University found that people are able to correctly identify other people's feelings up to 75 percent of the time -- based solely on subtle shifts in blood flow color around the nose, eyebrows, cheeks or chin. The study demonstrates a never-before-documented connection between the central nervous system and emotional expression in the face. Credit The Ohio State University Usage Restrictions None Share Print E-Mail 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.