Amplitude of alpha waves (IMAGE) Massachusetts Institute of Technology Caption As patients receive increasing doses of propofol (panels a through d), the amplitude of alpha waves gradually flattens until patients enter the state known as burst suppression (d). As the dose is decreased (panels e-g), the amplitude returns to normal. Credit MIT researchers Usage Restrictions Credit must be given to the creator. No derivatives or adaptations of the work are permitted. License CC BY-ND 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.