Figure 2 (IMAGE) Chuo University Caption The time course of hemodynamic response to yawning and mouth movement. The thick line in graph represents the mean Z score, and broken line represent the range of ±1standard of error of mean (SEM) Credit Chuo University Usage Restrictions The image may only be used with appropriate caption or 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.