1. Semel Institute for Neuroscience & Human Behavior, University of California, Los Angeles, CA 90095-6980, USA
2. Veteran Affairs Long Beach Healthcare System, Long Beach, CA 90822, USA
3. Department of Psychology, Loma Linda University, Loma Linda, CA 92350, USA
4. Fuller Theological Seminary, Semel Institute for Neuroscience & Human Behavior, University of California, Los Angeles, CA 90095-6980, USA