Regulating Male Mouse Social Interactions (IMAGE) Cell Press Caption This visual abstract depicts the findings of Soden et al., who characterize a population of neurons in the ventral premammillary nucleus of the hypothalamus that are genetically defined as dopaminergic but that do not release detectable dopamine. These neurons are activated in specific social contexts and function via glutamate release to regulate male same sex social interactions. Credit Soden et al./<i>Cell Reports</i> 2016 Usage Restrictions Credit Required. 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.