Cross-Species Imaging for Schizophrenia (video) Columbia University Medical Center Loading video... Caption In this video abstract, Schobel et al. describe progressive functional and structural abnormalities of the hippocampus observed in MRI studies of patients who progress to psychosis and mice exposed to repeated ketamine. Schobel et al. explain how hippocampal hypermetabolism leads to hippocampal atrophy across the transition to psychosis and the critical role of extracellular glutamate in driving the progressive abnormalities. Credit Columbia University Medical Center/The New York State Psychiatric Institute Usage Restrictions None 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.