1. Department of Cell and Molecular Biology (A.J.F., C.C., T.S., A.A.S., S.D., J.G.T.), Tulane University, New Orleans, Louisiana 70118
2. Departments of Physiology and Medicine (A.Z.), Tulane University Health Sciences Center, New Orleans, Louisiana 70112;
3. Neuroscience Program (A.Z., J.G.T.), Tulane University, New Orleans, Louisiana 70118;
4. Department of Psychiatry and Behavioral Neuroscience (J.P.H.), University of Cincinnati College of Medicine, Cincinnati, Ohio 45229