1. Neuroscience Graduate Program, University of California, Davis, Davis, CA, USA
2. Department of Psychology, University of California, Davis, Davis, CA, USA
3. Department of Chemistry, University of California, Davis, Davis, CA, USA
4. Department of Biochemistry & Molecular Medicine, School of Medicine, University of California, Davis, Sacramento, CA, USA
5. Center for Neuroscience, University of California, Davis, Davis, CA, USA