1. Department of Psychological Science, University of California, Irvine, Irvine, CA 92697, USA.
2. Department of Psychology, Princeton University, Princeton, NJ 08540, USA.
3. Sue & Bill Gross School of Nursing, University of California, Irvine, Irvine, CA 92697, USA.
4. Department of Medicine and Program in Public Health, University of California, Irvine, Irvine, CA 92697, USA.