Average Brain Activity (IMAGE) University of Pittsburgh Caption Adult and adolescent neural activity was similar at first. When a reward was expected (sessions 3-6), adolescent brain activity spiked, followed by a slow decrease after the sugar pellet was received (food trough entry). Adults experienced a similar rapid increase in activity followed by a quick return to baseline. Credit B. Moghaddam 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.