The nuanced effects of hormones (IMAGE) Emory University Caption The research was conducted with Mongolian gerbils, rodents that form lasting pair bonds and raise their pups together. The work showed the nuanced effects of testosterone, depending on context. It also revealed how testosterone influences the neural activity of oxytocin cells, the so-called love hormone associated with social bonding. Credit Aubrey Kelly Usage Restrictions Must include credit. License Original 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.