Believing is Seeing (IMAGE) University of California - San Diego Caption Researchers showed experimental participants still photographs of faces computer-morphed to express ambiguous emotion and instructed them to think of these faces as either angry or happy. Once an ambiguous look was interpreted, it biased subsequent perception. Credit Courtesy of Piotr Winkielman, UC San Diego. Usage Restrictions With credit 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.