1. Veterans Affairs Palo Alto Heathcare System, the Sierra Pacific Mental Illness, Research Education, and Clinical Center (MIRECC), Palo Alto, California
2. Department of Psychiatry and Behavioral Sciences, Stanford University Medical Center, Stanford, California
3. Berenson-Allen Center for Noninvasive Brain Stimulation, Beth Israel Deaconess Medical Center, Boston, Massachusetts
4. Department of Neurology, Harvard Medical School, Boston, Massachusetts
5. Cognitive and Information Sciences, University of California, Merced, California
6. Swartz Center for Computational Neuroscience, Institute for Neural Computation, University of California, San Diego, California