Name	Location	Role	Contribution
Michael W. Weiner, MD	University of California, San Francisco	Principal investigator	Administrative core
Andrew J. Saykin, PsyD	Indiana University	Principal investigator	Genetics core
John Q. Trojanowski, MD, PhD	University of Pennsylvania	Principal investigator	Biomarker core
Leslie Shaw, PhD	University of Pennsylvania	Principal investigator	Biomarker core
Arthur W. Toga, PhD	University of Southern California	Principal investigator	Informatics core
Laurel Beckett, PhD	University of California, Davis	Principal investigator	Biostatistics core
Clifford Jack, MD	Mayo Clinic	Principal investigator	MRI core
Paul Aisen	University of Southern California	Principal investigator	Clinical core
Ronald Petersen, MD, PhD	Mayo Clinic	Principal investigator	Clinical core
John C. Morris	Washington University	Principal investigator	Neuropathology core