Figure 2 (IMAGE) Tohoku University Caption Two brain regions, the prefrontal cortex and amygdala, are specific to social behavior. They decrease and increase theta (4-7Hz) and gamma (30-60 Hz) oscillations, respectively, during social interaction. Credit Takuya Sasaki et al. Usage Restrictions Reporters may use freely these materials in news coverage with appropriate credit information. 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.