Nikola showing six basic emotions (IMAGE) RIKEN Caption The six emotional expressions assessed in the second experiment. See if you can identify them! Note: this is a video made by filming Nikola's head as it sat on a desk - it is not a computer animated graphic. Credit RIKEN Usage Restrictions Credit RIKEN License Original 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.