A Drug that Reduces Anxiety-Like Behavior (IMAGE) Tokyo University of Science Caption Japanese researchers identify novel mechanism of glutamatergic neurotransmission that can be modulated with delta opioid receptor agonists to achieve anxiolytic effect. Credit Miguel Á. Padriñán from Pexels 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.