[1] Univ Calif Irvine, Inst Memory Impairments & Neurol Disorders, Dept Psychiat & Human Behav, Irvine, AB, Canada
[2] Univ Calif Irvine, Dept Neurobiol & Behav, Irvine, AB, Canada
[3] Univ Pittsburgh, Alzheimers Dis Res Ctr, Sch Nursing, Dept Hlth & Community Syst,UPMC Montefiore, Pittsburgh, PA USA