1. a Department of Psychology , Kent State University , Kent , OH , USA
2. b Taub Institute for Research on Alzheimer's Disease and the Aging Brain, Department of Neurology , College of Physicians and Surgeons, Columbia University , New York , NY , USA
3. d Institute of Gerontology , Wayne State University , Detroit , MI , USA
4. e Departments of Neurology Psychiatry and the Institute on Aging , Center for Cognitive Aging and Memory, University of Florida , Gainesville , FL , USA
5. f Department of Psychology , University of Georgia , Atlanta , GA , USA
6. g Department of Kinesiology , University of Wisconsin , Madison , WI , USA
7. h University Hospitals Case Medical Center and Department of Medicine , Cleveland , OH , USA
8. i Harrington Heart & Vascular Institute , Cleveland , OH , USA
9. j Case Western Reserve University School of Medicine , Cleveland , OH , USA
10. c Department of Psychiatry , Summa Health System, Akron City Hospital , Akron , OH , USA