Post-Traumatic Stress Symptoms Reduced after Use of HIRREM Closed-Loop Neurotechnology (image) Brain State Technologies, LLC Share Print E-Mail Caption For an individual with posttraumatic stress symptoms, the figure shows brain electrical activity at the temporal lobes before (top panel) use of HIRREM (Brain State Technologies, Scottsdale Arizona), and afterward (bottom panel). Left and right sides of each panel show left and right temporal lobes, respectively, with the frequency spectrum along the vertical axis, and amplitudes along the horizontal axis. The initial state shows rightward asymmetry, especially in high frequencies. By the end of HIRREM, there is more symmetry, as well as a reduction of amplitudes across most of the frequency spectrum, for both lobes. Credit © Brain State Technologies Usage Restrictions The image may be used with appropriate caption and credit. HIRREM® is a registered trademark of Brain State Technologies, LLC. 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.