1 Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, California; Department of Psychology, University of California Los Angeles, Los Angeles, California; Brain Research Institute, University of California Los Angeles, Los Angeles, California. Electronic address: cbearden@mednet.ucla.edu.
2 Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, University of California Los Angeles, Los Angeles, California; Department of Psychology, University of California Los Angeles, Los Angeles, California; Brain Research Institute, University of California Los Angeles, Los Angeles, California.