Magnetic Resonance Spectroscopy Image (IMAGE) Indiana University Caption The study used magnetic resonance spectroscopy to show how images associated with alcohol use cause glutamate levels to change in a region of the brain known as the dorsal anterior cingulate, which plays an important role in addiction. Credit Hu Chang, Indiana University Usage Restrictions None 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.