1. Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
2. Department of Neurology, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033 USA
3. Alzheimer’s Disease Research Center, Keck School of Medicine, University of Southern California, Los Angeles, CA 90033, USA
4. Corwin D. Denney Research Center, Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA