1. Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, USA
2. Spaulding Rehabilitation Hospital, Charlestown, MA, USA
3. Department of Psychiatry, University of California San Diego, CA, USA
4. Veterans Affairs San Diego Healthcare System, CA, USA
5. Sam and Rose Stein Institute for Research on Aging, University of California San Diego, CA, USA
6. San Diego State University/University of California San Diego Joint Doctoral Program in Clinical Psychology, CA, USA
7. Department of Neurosciences, University of California San Diego, CA, USA